HSIC insider ownership: who sold, why, and what they still hold

Who	Shares	Price	% of total stake	Total stake after	Trade date	Filed
Andrea Albertini CEO, Global Dist. & Tech.	603	$88.86	0.5%	116K	Sep 8, 2026	Sep 9, 2026

What stands out

Stanley Bergman sold $7.5M of stock with no disclosed trading plan. The filings don't state a reason.Largest such sale, Feb 26, 2026

William Daniel bought 10K shares for $692K, first on May 11, 2026.Purchase, May 11, 2026

Thomas Popeck sold 1.4K shares (3.7% of starting holdings), but 52K more vested, so the stake grew (from 36K to 86K).Largest sale, Mar 19, 2026

Percentages cover 18 of 23 officers and directors. 5 are left out

Left out: Stanley Bergman (most holdings were last confirmed in 2020); Mark Mlotek (most holdings were last confirmed in 2022); Philip Laskawy (most holdings were last confirmed in 2008); Max Lin and Frederick Lowery (held no vested shares at the start).

Disclosed company stock is not an insider's whole wealth.

Who sold, and how much of their stake

Officers and directors, past 12 months. Each bar is 100% of that person's own stake; not comparable between people. The stake is the vested shares held at the start of the period (Oct 9, 2025); the gold part is what they sold.

SoldRest of starting stake

Stanley Bergman

Chairman, CEO, Director

Sold $7.5M (plan status beside the amount). Share of stake not shown: most holdings were last confirmed in 2020. Why

$7.5MNo plan disclosed

Mark Mlotek

EVP, Chief Strategic Officer

Sold $479K (plan status beside the amount). Share of stake not shown: most holdings were last confirmed in 2022. Why

$479KNo plan disclosed

Philip Laskawy

Director

Sold $229K (plan status beside the amount). Share of stake not shown: most holdings were last confirmed in 2008. Why

$229KNo plan disclosed

Kurt Kuehn

Director

18% · $225KNo plan disclosed

Thomas Popeck

CEO, Henry Schein Products

3.7% · $99KNo plan disclosed

Amounts, filings and trading plans for each seller

Selling by month

Officers and directors, Oct 2025 to Oct 2026. Each sale is counted once: under a disclosed plan, else to cover taxes, else no plan disclosed.

No plan disclosedOne dollar scale for every month; the tallest bar is labeled

Outside holders, reported separately

KKR Hawaii Aggregator L.P., KKR Group Partnership L.P. and MH Sub I, LLC reported no open-market sales in the past 12 months. Large shareholders and the funds or companies that board members represent are not part of management, so they are left out of the figures above.

Details

Common questions

Is the Henry Schein CEO selling stock?

Yes. Stanley Bergman sold 93K shares ($7.5M) in the past 12 months, none of it under a trading plan disclosed in the filings.

Why are Henry Schein insiders selling?

Filings rarely give a reason, and we don't guess at one. What they show is how the sales were made: 0% of sales by value ran under 10b5-1 trading plans disclosed in the filings and 100% had no disclosed plan. A trading plan schedules sales in advance.

Are any Henry Schein insiders buying?

Yes. 1 officer or director reported 1 purchase in the past 12 months (Form 4 code P, which includes private purchases).

How much of their stake did Henry Schein insiders sell?

About 0.8% overall. As a group they ended with more shares than they started with. These figures leave out Stanley Bergman, the largest holder (most holdings were last confirmed in 2020). That covers the 12 months to Oct 9, 2026 and counts vested shares reported on SEC Forms 3, 4 and 5, which is not an insider's whole wealth.

The evidence

Who sold5 officers and directors: amount, % of holdings, trading plan

Who sold	Amount	% of holdings	Trading plan
Stanley Bergman Chairman, CEO, Director	$7.5M 93K shares	i No percentage: most holdings were last confirmed in 2020.	No plan disclosed
Mark Mlotek EVP, Chief Strategic Officer	$479K 5.9K shares	i No percentage: most holdings were last confirmed in 2022.	No plan disclosed
Philip Laskawy Director	$229K 2.8K shares	i No percentage: most holdings were last confirmed in 2008.	No plan disclosed
Kurt Kuehn Director	$225K 2.8K shares	18%	No plan disclosed
Thomas Popeck CEO, Henry Schein Products	$99K 1.4K shares	3.7%	No plan disclosed

Outside holder, reported separately: KKR Hawaii Aggregator L.P. (a 10% owner, not part of management). No open-market sales reported in the period. Holds 30.92M shares. Latest filing

Outside holder, reported separately: KKR Group Partnership L.P. (a 10% owner, not part of management). No open-market sales reported in the period. Holds 15.65M shares. Latest filing

Outside holder, reported separately: MH Sub I, LLC (a 10% owner, not part of management). No open-market sales reported in the period. Holds 15.65M shares. Latest filing

The full ownership picture23 of 23 insiders fully reconciled · 22 officers and directors

Vested shares across all share classes, held directly and through trusts, LLCs and family members, as reported on SEC Forms 3, 4 and 5. Unvested awards and options are never counted as owned shares.

Insider

Held Oct 9, 2025

Sold

Held Oct 9, 2026

Still held

Stanley Bergman

Most of this insider's holdings were last confirmed in 2020. Confirmed in the last three years: 1,109,085 shares. Not confirmed since: 9,924,898 shares, left out of this row. "Still held" is not shown because it would cover only the smaller, confirmed part.

Chairman, CEO, Director

1.26M

−93K

1.11M

see note

Vesting, gifts, unvested awards and holding lines for Stanley Bergman

0shares vested or exercised

−4.1Kgifted (net of own trusts)

−7.4Kwithheld by the company for taxes

none reportedunvested awards, start → end

Additional holdings last reported more than 3 years ago are shown separately and excluded from totals.

Held through	Share class	Oct 9, 2025	Oct 9, 2026
Spouse	Common Stock par value $0.01 per shre	465,961	465,961
Direct	Common Stock, par value $0.01 per share	321,547	253,279
Spouse	Common Stock, par value $0.01 per share	465,961	379,991
401(k) plan	Common Stock, par value $0.01 per share	9,789	9,854

Additional holdings last reported Nov 9, 2020, not confirmed since: 9,924,898 shares. Not included in any total or percentage on this page.

Direct, Common Stock: 64,808 shares, last reported Apr 7, 2004
Stanley M. Bergman Continuing Trust, Common Stock: 2,567,752 shares, last reported Apr 7, 2004
trusts for the benefit of immediate family members of Stanley M. Bergman or certain other persons, wherein Stanley M. Bergman, Common Stock: 17,680 shares, last reported Dec 11, 2003
Stanley M. Bergman's sons, Common Stock: 3,112 shares, last reported Dec 11, 2003
Direct, Common Stock, par value $0.01: 121,272 shares, last reported Mar 2, 2010
Trustees, Common Stock, par value $0.01: 2,122,556 shares, last reported Mar 5, 2010
401(k) plan, Common Stock, par value $0.01: 8,398 shares, last reported Mar 5, 2010
401(k), Common Stock, par value $0.01: 7,836 shares, last reported Mar 5, 2007
Spouse, Common Stock, par value $0.01: 846 shares, last reported Mar 5, 2010
Direct, Common Stock, par value $0.01 (Restricted Stock): 41,146 shares, last reported Mar 5, 2007
Direct, Common Stock, par value $0.01 (Restricted): 21,138 shares, last reported Dec 21, 2006
Trustees, Common Stock, par value $0.01 per share: 2,122,556 shares, last reported Mar 10, 2010
Spoue, Common Stock, par value $0.01 per share: 675,972 shares, last reported Nov 9, 2020
Trustee, Common Stock, par value $0.01 per share: 10,784 shares, last reported Mar 3, 2008
401(k), Common Stock, par value $0.01 per share: 8,894 shares, last reported Nov 23, 2016
Son, Common Stock, par value $0.01 per share: 3,112 shares, last reported Dec 15, 2005
Direct, Common Stock, par value $0.01 per share (Restricted): 67,672 shares, last reported Mar 2, 2009
Direct, Common Stock, par value, $0.01 per share: 155,538 shares, last reported May 13, 2010
Spouse, Common Stock, par value, $0.01 per share: 1,895,428 shares, last reported May 13, 2010
401(k) plan, Common Stock, par value, $0.01 per share: 8,398 shares, last reported May 13, 2010

Reconciliation: minor difference of 65 shares. Difference is under 0.5% of holdings.

Mark Mlotek

Most of this insider's holdings were last confirmed in 2022. Confirmed in the last three years: 111,974 shares. Not confirmed since: 289,086 shares, left out of this row. "Still held" is not shown because it would cover only the smaller, confirmed part.

EVP, Chief Strategic Officer

109K

−5.9K

112K

see note

Vesting, gifts, unvested awards and holding lines for Mark Mlotek

0shares vested or exercised

−1.8Kgifted (net of own trusts)

−7Kwithheld by the company for taxes

none reportedunvested awards, start → end

Additional holdings last reported more than 3 years ago are shown separately and excluded from totals.

Held through	Share class	Oct 9, 2025	Oct 9, 2026
Direct	Common Stock, par value $0.01 per share	96,984	98,372
trusts for the benefit of family members	Common Stock, par value $0.01 per share	5,916	7,416
401(k) plan	Common Stock, par value $0.01 per share	4,088	4,086
a trust for the benefit of family members	Common Stock, par value $0.01 per share	2,100	2,100

Additional holdings last reported Dec 20, 2022, not confirmed since: 289,086 shares. Not included in any total or percentage on this page.

Direct, Common Stock: 8,048 shares, last reported Mar 4, 2004
Direct, Common Stock, par value $.01 per share: 78,900 shares, last reported Dec 21, 2017
401(k) plan, Common Stock, par value $.01 per share: 4,086 shares, last reported Mar 17, 2017
Direct, Common Stock, par value $0.01: 67,874 shares, last reported Mar 5, 2010
401(k) plan, Common Stock, par value $0.01: 4,087 shares, last reported Dec 28, 2019
401(k), Common Stock, par value $0.01: 3,430 shares, last reported Mar 5, 2007
Custodian for children, Common Stock, par value $0.01: 3,200 shares, last reported Mar 7, 2005
Children, Common Stock, par value $0.01: 1,600 shares, last reported Mar 5, 2010
Direct, Common Stock, par value $0.01 (Restricted Stock): 27,774 shares, last reported Mar 5, 2007
Direct, Common Stock, par value $0.01 (Restricted): 14,266 shares, last reported Feb 22, 2007
401(k), Common Stock, par value $0.01 per share: 4,090 shares, last reported Dec 20, 2022
children, Common Stock, par value $0.01 per share: 1,600 shares, last reported Mar 10, 2014
Direct, Common Stock, par value $0.01 per share (Restricted Stock): 27,774 shares, last reported Nov 30, 2007
Direct, Common Stock, par value $0.01 per share (Restricted): 38,262 shares, last reported Mar 2, 2009
401(k) plan, Common Stock,par value $.01 per share: 4,095 shares, last reported Dec 21, 2017

Reconciliation: minor difference of -2 shares. Difference is under 0.5% of holdings.

Michael Ettinger

Additional holdings last reported more than 3 years ago are shown separately and excluded from totals.

EVP & Chief Operating Officer

103K

113K

no sales

Vesting, gifts, unvested awards and holding lines for Michael Ettinger

0shares vested or exercised

−2.4Kgifted (net of own trusts)

−5.1Kwithheld by the company for taxes

none reportedunvested awards, start → end

Additional holdings last reported more than 3 years ago are shown separately and excluded from totals.

Held through	Share class	Oct 9, 2025	Oct 9, 2026
Direct	Common Stock, par value $0.01 per share	101,693	112,208
trusts for the benefit of his children	Common Stock, par value $0.01 per share	800	800
401(k) plan	Common Stock, par value $0.01 per share	210	210

Additional holdings last reported May 12, 2021, not confirmed since: 1,010 shares. Not included in any total or percentage on this page.

trusts for the benefit of is children, Common Stock, par value $0.01 per share: 800 shares, last reported Dec 11, 2017
401(k), Common Stock, par value $0.01 per share: 210 shares, last reported May 12, 2021

Ronald South

Includes unvested RSUs, amount not disclosed.

SVP & Chief Financial Officer

81K

89K

no sales

Vesting, gifts, unvested awards and holding lines for Ronald South

0shares vested or exercised

0gifted (net of own trusts)

−5.9Kwithheld by the company for taxes

none reportedunvested awards, start → end

Includes unvested RSUs, amount not disclosed.

Held through	Share class	Oct 9, 2025	Oct 9, 2026
Direct includes unvested RSUs, amount not disclosed	Common Stock, par value $0.01 per share	81,374	88,930

Andrea Albertini

Includes unvested RSUs, amount not disclosed.

CEO, Global Dist. & Tech.

68K

116K

no sales

Vesting, gifts, unvested awards and holding lines for Andrea Albertini

0shares vested or exercised

0gifted (net of own trusts)

−4.5Kwithheld by the company for taxes

none reportedunvested awards, start → end

Includes unvested RSUs, amount not disclosed.

Held through	Share class	Oct 9, 2025	Oct 9, 2026
Direct includes unvested RSUs, amount not disclosed	Common Stock, par value $0.01 per share	67,932	116,104

Stock options (not counted as shares):

Options held	Strike price	Expires	Intrinsic value (estimate)
2,426	$62.71	Mar 3, 2031	$16K
9,103	$75.68	Dec 10, 2031	$0
4,469	$86.27	Mar 16, 2032	$0

Estimate: options held × ($69.19 − strike price), using the most recent insider trade price on Form 4 (May 11, 2026), not a market close.

Bradley Sheares

Director

45K

48K

no sales

Vesting, gifts, unvested awards and holding lines for Bradley Sheares

0shares vested or exercised

0gifted (net of own trusts)

none reportedunvested awards, start → end

Held through	Share class	Oct 9, 2025	Oct 9, 2026
Direct	Common Stock, par value $0.01 per share	45,046	47,623

Thomas Popeck

CEO, Henry Schein Products

36K

−1.4K

86K

+138%

Vesting, gifts, unvested awards and holding lines for Thomas Popeck

0shares vested or exercised

0gifted (net of own trusts)

−724withheld by the company for taxes

none reportedunvested awards, start → end

Held through	Share class	Oct 9, 2025	Oct 9, 2026
Direct	Common Stock, par value $0.01 per share	36,257	86,182

Stock options (not counted as shares):

Options held	Strike price	Expires	Intrinsic value (estimate)
2,603	$62.71	Mar 3, 2031	$17K
1,720	$86.27	Mar 16, 2032	$0

Estimate: options held × ($69.19 − strike price), using the most recent insider trade price on Form 4 (May 11, 2026), not a market close.

Kelly Murphy

Includes unvested RSUs, amount not disclosed. Started reporting during the period; starting holdings are from the Form 3.

SVP & General Counsel

35K

no sales

Vesting, gifts, unvested awards and holding lines for Kelly Murphy

0shares vested or exercised

0gifted (net of own trusts)

none reportedunvested awards, start → end

Includes unvested RSUs, amount not disclosed.
Started reporting during the period; starting holdings are from the Form 3.

Held through	Share class	Oct 9, 2025	Oct 9, 2026
Direct includes unvested RSUs, amount not disclosed	Common Stock, par value $0.01 per share	34,812	34,812

Stock options (not counted as shares):

Options held	Strike price	Expires	Intrinsic value (estimate)
1,479	$62.71	Mar 3, 2031	$10K
9,274	$76.76	Sep 10, 2031	$0
2,979	$86.27	Mar 16, 2032	$0

Estimate: options held × ($69.19 − strike price), using the most recent insider trade price on Form 4 (May 11, 2026), not a market close.

Carol Raphael

Director

34K

no sales

Vesting, gifts, unvested awards and holding lines for Carol Raphael

0shares vested or exercised

0gifted (net of own trusts)

none reportedunvested awards, start → end

Held through	Share class	Oct 9, 2025	Oct 9, 2026
Direct	Common Stock, par value $0.01 per share	33,538	33,538

Joseph Herring

Additional holdings last reported more than 3 years ago are shown separately and excluded from totals.

Director

28K

30K

no sales

Vesting, gifts, unvested awards and holding lines for Joseph Herring

0shares vested or exercised

0gifted (net of own trusts)

none reportedunvested awards, start → end

Additional holdings last reported more than 3 years ago are shown separately and excluded from totals.

Held through	Share class	Oct 9, 2025	Oct 9, 2026
Direct	Common Stock, par value $0.01 per share	27,748	30,325

Additional holdings last reported Mar 2, 2018, not confirmed since: 1,534 shares. Not included in any total or percentage on this page.

Trust, Common Stock, par value $0.01 per share: 1,534 shares, last reported Mar 2, 2018

Philip Laskawy

Most of this insider's holdings were last confirmed in 2008. Confirmed in the last three years: 24,538 shares. Not confirmed since: 32,208 shares, left out of this row. "Still held" is not shown because it would cover only the smaller, confirmed part.

Director

25K

−2.8K

25K

see note

Vesting, gifts, unvested awards and holding lines for Philip Laskawy

0shares vested or exercised

0gifted (net of own trusts)

none reportedunvested awards, start → end

Additional holdings last reported more than 3 years ago are shown separately and excluded from totals.

Held through	Share class	Oct 9, 2025	Oct 9, 2026
Direct	Common Stock, par value $0.01 per share	24,805	24,538

Additional holdings last reported Mar 3, 2008, not confirmed since: 32,208 shares. Not included in any total or percentage on this page.

Spouse, Common Stock, par value $0.01: 8,000 shares, last reported Mar 5, 2007
Direct, Common Stock, par value $0.01 (Restricted): 4,242 shares, last reported Mar 2, 2006
Direct, Common Stock, par value $0.01 (Restricted Stock): 8,264 shares, last reported Mar 5, 2007
Direct, Common Stock, par value $0.01 per share (Restricted): 11,702 shares, last reported Mar 3, 2008

Anne Margulies

Director

21K

23K

no sales

Vesting, gifts, unvested awards and holding lines for Anne Margulies

0shares vested or exercised

0gifted (net of own trusts)

none reportedunvested awards, start → end

Held through	Share class	Oct 9, 2025	Oct 9, 2026
Direct	Common Stock, par value $0.01 per share	20,576	23,153

Kurt Kuehn

Director

16K

−2.8K

15K

98%

Vesting, gifts, unvested awards and holding lines for Kurt Kuehn

0shares vested or exercised

0gifted (net of own trusts)

none reportedunvested awards, start → end

Held through	Share class	Oct 9, 2025	Oct 9, 2026
Direct	Common Stock, par value $0.01 per share	15,687	15,420

Deborah Derby

Director

13K

16K

no sales

Vesting, gifts, unvested awards and holding lines for Deborah Derby

0shares vested or exercised

0gifted (net of own trusts)

none reportedunvested awards, start → end

Held through	Share class	Oct 9, 2025	Oct 9, 2026
Direct	Common Stock, par value $0.01 per share	12,516	15,093
a trust for the benefit of the Reporting Person	Common Stock, par value $0.01 per share	760	760

William Daniel

Director

13K

28K

no sales

Vesting, gifts, unvested awards and holding lines for William Daniel

0shares vested or exercised

0gifted (net of own trusts)

none reportedunvested awards, start → end

Held through	Share class	Oct 9, 2025	Oct 9, 2026
Direct	Common Stock, par value $0.01 per share	2,849	7,641
a trust for the benefit of the Reporting Person	Common Stock, par value $0.01 per share	10,000	20,000

Mohamad Ali

Director

12K

15K

no sales

Vesting, gifts, unvested awards and holding lines for Mohamad Ali

0shares vested or exercised

0gifted (net of own trusts)

none reportedunvested awards, start → end

Held through	Share class	Oct 9, 2025	Oct 9, 2026
Direct	Common Stock, par value $0.01 per share	12,498	15,075

Reed Tuckson

Director

9.9K

13K

no sales

Vesting, gifts, unvested awards and holding lines for Reed Tuckson

0shares vested or exercised

0gifted (net of own trusts)

none reportedunvested awards, start → end

Held through	Share class	Oct 9, 2025	Oct 9, 2026
Direct	Common Stock, par value $0.01 per share	9,943	12,520

Scott Serota

Director

9.2K

12K

no sales

Vesting, gifts, unvested awards and holding lines for Scott Serota

0shares vested or exercised

0gifted (net of own trusts)

none reportedunvested awards, start → end

Held through	Share class	Oct 9, 2025	Oct 9, 2026
Direct	Common Stock, par value $0.01 per share	8,213	10,790
trust	Common Stock, par value $0.01 per share	1,000	1,000

Carole Faig

Director

5.4K

no sales

Vesting, gifts, unvested awards and holding lines for Carole Faig

0shares vested or exercised

0gifted (net of own trusts)

none reportedunvested awards, start → end

Held through	Share class	Oct 9, 2025	Oct 9, 2026
Direct	Common Stock par value $0.01 per share	5,448	8,025

Robert Hombach

Director

2.8K

5.4K

no sales

Vesting, gifts, unvested awards and holding lines for Robert Hombach

0shares vested or exercised

0gifted (net of own trusts)

none reportedunvested awards, start → end

Held through	Share class	Oct 9, 2025	Oct 9, 2026
Direct	Common Stock par value $0.01 per share	2,844	5,421

Christine Sheehy

Includes unvested RSUs, amount not disclosed. Unvested RSUs stated in footnotes are excluded from owned shares.

SVP, Chief Human Res. Officer

1.8K

18K

no sales

Vesting, gifts, unvested awards and holding lines for Christine Sheehy

0shares vested or exercised

0gifted (net of own trusts)

−551withheld by the company for taxes

none reportedunvested awards, start → end

Includes unvested RSUs, amount not disclosed.
Unvested RSUs stated in footnotes are excluded from owned shares.

Held through	Share class	Oct 9, 2025	Oct 9, 2026
Direct includes unvested RSUs, amount not disclosed	Common Stock, par value $0.01 per share	1,776	18,454

Stock options (not counted as shares):

Options held	Strike price	Expires	Intrinsic value (estimate)
1,377	$86.27	Mar 16, 2032	$0

Estimate: options held × ($69.19 − strike price), using the most recent insider trade price on Form 4 (May 11, 2026), not a market close.

Frederick Lowery

Started reporting during the period; starting holdings are from the Form 3.

CEO, Director

95K

no sales

Vesting, gifts, unvested awards and holding lines for Frederick Lowery

0shares vested or exercised

0gifted (net of own trusts)

none reportedunvested awards, start → end

Started reporting during the period; starting holdings are from the Form 3.

Held through	Share class	Oct 9, 2025	Oct 9, 2026
Direct	Common Stock, par value $0.01 per share	0	95,156
Direct	No Securities Beneficially Owned	0	0

Stock options (not counted as shares):

Options held	Strike price	Expires	Intrinsic value (estimate)
177,116	$77.60	Mar 6, 2036	$0

Estimate: options held × ($69.19 − strike price), using the most recent insider trade price on Form 4 (May 11, 2026), not a market close.

23 of 23 insiders fully reconciled: starting holdings plus reported transactions match ending holdings (21 exactly, 2 with a minor or footnoted difference). Percentages cover 18 of 23 officers and directors. Left out: Stanley Bergman (most holdings were last confirmed in 2020); Mark Mlotek (most holdings were last confirmed in 2022); Philip Laskawy (most holdings were last confirmed in 2008); Max Lin and Frederick Lowery (held no vested shares at the start). "Still held" compares ending with starting vested shares; a plus sign means the holding grew.

What explains the selling$8.6M of sales by plan status, purpose, seller and month

Officer and director open-market sales: $8.6M across 105,911 shares. Plan status and stated purpose are separate questions, and a sale can have both.

By plan status

No plan disclosed · $8.6M

Sales with no 10b5-1 plan and no tax reference in the filing. $7.5M of it is Stanley Bergman. No plan disclosed is a statement about the filing, not about why the sale happened. Largest such sale: Stanley Bergman, Feb 26, 2026

Taxes

31,196 shares ($2.4M) were withheld by the company for taxes, which isn't a market sale.

Purchases · 1 buyer (1 trade)

1 officer or director bought shares in this period, in 1 trade(Form 4 code P). Across all their filings on record there are 16 purchase trades.

Seller	Shares sold	Proceeds	Under a disclosed plan	Share of total	Sales dates
Stanley Bergman Chairman, CEO, Director	93K	$7.5M	0%	88%	Feb 26, 2026 to Mar 2, 2026
Mark Mlotek EVP, Chief Strategic Officer	5.9K	$479K	0%	6%	Mar 4, 2026 to Mar 4, 2026
Philip Laskawy Director	2.8K	$229K	0%	3%	Mar 5, 2026 to Mar 5, 2026
Kurt Kuehn Director	2.8K	$225K	0%	3%	Mar 10, 2026 to Mar 10, 2026
Thomas Popeck CEO, Henry Schein Products	1.4K	$99K	0%	1%	Mar 19, 2026 to Mar 19, 2026

Sales by month

Month	Sale proceeds	Disclosed plan	To cover taxes	No plan disclosed
Oct 2025	$0	$0	$0	$0
Nov 2025	$0	$0	$0	$0
Dec 2025	$0	$0	$0	$0
Jan 2026	$0	$0	$0	$0
Feb 2026	$4.0M	$0	$0	$4.0M
Mar 2026	$4.6M	$0	$0	$4.6M
Apr 2026	$0	$0	$0	$0
May 2026	$0	$0	$0	$0
Jun 2026	$0	$0	$0	$0
Jul 2026	$0	$0	$0	$0
Aug 2026	$0	$0	$0	$0
Sep 2026	$0	$0	$0	$0
Oct 2026	$0	$0	$0	$0

Is this normal? Selling year by year5 earlier years to compare with

In line with the past 5 years. 5 insiders sold; the average is 8 a year.

12 months ending	Shares sold	Insiders who sold	Proceeds
Oct 9, 2026 Latest 12 months	106K	5	$8.6M
Oct 9, 2025 1 year earlier	22K	4	$1.6M
Oct 9, 2024 2 years earlier	114K	8	$8.4M
Oct 10, 2023 3 years earlier	181K	11	$14.2M
Oct 10, 2022 4 years earlier	158K	8	$13.0M
Oct 10, 2021 5 years earlier	156K	9	$11.4M

Open-market sales (Form 4 code S) by people who were officers or directors, in split-adjusted shares. Earlier years include people who have since left. A sale that an outside holder also reports (a family trust, a fund) is counted with outside holders in every year. Shares, not dollars, are compared, so a change in the stock price doesn't look like a change in selling. Years the filings don't fully cover are shown but left out of the average.

Known gaps and uncertaintyEvery officer and director reconciles

Every officer and director reconciles for this period.

Stanley Bergman: minor difference of 65 shares. Difference is under 0.5% of holdings.

Mark Mlotek: minor difference of -2 shares. Difference is under 0.5% of holdings.

Inferred rename: "Sons" is treated as the same holder as "Son", because the old name was never reported again and the new one opened with the same balance (3,012 shares). Old name, new name

Inferred rename: "Limited Liability Company" is treated as the same holder as "Limited Liability Co", because the old name was never reported again and the new one opened with the same balance (69,216 shares). Old name, new name

Inferred rename: "Child" is treated as the same holder as "Son", because the old name was never reported again and the new one opened with the same balance (800 shares). Old name, new name

Inferred rename: "401(k)" is treated as the same holder as "401(k) Plan", because the old name was never reported again and the new one opened with the same balance (242 shares). Old name, new name

Inferred rename: "401(k)" is treated as the same holder as "401(k) plan", because the old name was never reported again and the new one opened with the same balance (5,590 shares). Old name, new name

Inferred rename: "Children" is treated as the same holder as "Trusts for the benefit of his children", because the old name was never reported again and the new one opened with the same balance (840 shares). Old name, new name

Inferred rename: "trusts for the benefit of his children" is treated as the same holder as "a trust where Mr", because the old name was never reported again and the new one opened with the same balance (1,200 shares). Old name, new name

Inferred rename: "James A. Harding Revocable Trust where Mr" is treated as the same holder as "James A. Harding Revocable Trust", because the old name was never reported again and the new one opened with the same balance (42,320 shares). Old name, new name

Inferred typo: the share class "Common Stock, par value $.01 per share" is treated as the same class as "Common Stock,par value $.01 per share" on 1 holding line, because the two spellings are nearly identical and each balance carried over exactly. Example (Mark Mlotek, 80,852 shares): old title, new title

Inferred typo: the share class "Common Stock, par value $0.01 per share" is treated as the same class as "Common Stock, par value $0.01 per sharre" on 1 holding line, because the two spellings are nearly identical and each balance carried over exactly. Example (Steven Paladino, 135,668 shares): old title, new title

Inferred typo: the share class "Common Stock par value $0.01 per shre" is treated as the same class as "Common Stock, par value $0.01 per share" on 1 holding line, because the two spellings are nearly identical and each balance carried over exactly. Example (Stanley Bergman, 320,377 shares): old title, new title

Inferred typo: the share class "Common Stock par value $0.01 per share" is treated as the same class as "Common Stock, par value $0.01 per share" on 2 holding lines, because the two spellings are nearly identical and each balance carried over exactly. Example (Stanley Bergman, 434,827 shares): old title, new title

Inferred typo: the share class "Common Stock, par value $0.01 per shar" is treated as the same class as "Common Stock, par value $0.01 per share" on 1 holding line, because the two spellings are nearly identical and each balance carried over exactly. Example (Michael Ettinger, 94,965 shares): old title, new title

Inferred typo: the share class "Common Stock, par value $0.01 per share" is treated as the same class as "Common Stock par value $0.01 per share" on 3 holding lines, because the two spellings are nearly identical and each balance carried over exactly. Example (Joseph Herring, 24,904 shares): old title, new title

External context: we only cite outside events when a documented connection exists. None is shown for this period.

Sources and methodology1,362 filings from SEC EDGAR, and how we read them

All 1,362 Forms 3, 4 and 5 filed for Henry Schein (SEC CIK 1000228) from Jul 10, 1996 to Sep 9, 2026, retrieved from SEC EDGAR on Oct 9, 2026. Prices are the ones reported in each filing, often weighted averages. 2 filings were left out because Henry Schein filed them as an owner of another company's stock. 29 older filings exist only on paper and could not be read.

Probable 2-for-1 stock split on or before Mar 15, 2005 (first filing that shows post-split balances). Splits aren't reported as transactions; 5 holding lines changed by exactly this ratio, so earlier share counts are restated.

Probable 2-for-1 stock split on or before Sep 1, 2017 (split date stated in a footnote). Splits aren't reported as transactions; 22 holding lines changed by exactly this ratio, so earlier share counts are restated.

Holdings. Each holding line (a share class plus an owner, such as a trust or LLC) carries its last reported balance forward. Entities first reported during the period start at zero, so transfers between an insider's own trusts don't count as selling. Lines not reported for three years or more are listed separately and left out of totals.

Sales. A sale counts as under a 10b5-1 plan if its footnote cites one or the filing's Rule 10b5-1 box is checked, and as tax-related if its footnote cites tax obligations or sell-to-cover. Shares withheld by the company for taxes are listed separately. Sales with neither attribute are labeled "no plan disclosed".

Full methodology

Former or inactive filers (33)No filing in 18 months; last reported balances, not in any total

Name	Last filed	Last reported balance
Bradford Connett	Mar 20, 2025	62,688 shares, last reported balance as of Mar 19, 2025
James Breslawski	Mar 17, 2025	971,011 shares, last reported balance as of Mar 14, 2025
Walter Siegel	Mar 17, 2025	43,191 shares, last reported balance as of Mar 14, 2025
Lorelei McGlynn	Sep 9, 2024	72,329 shares, last reported balance as of Sep 6, 2024
Steven Paladino	Mar 5, 2024	361,692 shares, last reported balance as of Mar 4, 2024
David Brous Jr.	Jun 13, 2023	69,741 shares, last reported balance as of Jun 12, 2023
Gerald Benjamin	May 27, 2022	301,913 shares, last reported balance as of May 26, 2022
Barry Alperin	Mar 18, 2022	84,681 shares, last reported balance as of Mar 16, 2022
Dianne Rekow	Mar 18, 2022	18,526 shares, last reported balance as of Mar 16, 2022
Paul Brons	Mar 5, 2021	42,062 shares, last reported balance as of Mar 3, 2021
Shira Goodman	Mar 5, 2021	12,967 shares, last reported balance as of Mar 3, 2021
David McKinley	Dec 3, 2018	68,222 shares, last reported balance as of Nov 30, 2018
Donald Kabat	Mar 8, 2018	88,170 shares, last reported balance as of Mar 6, 2018
Lawrence Bacow	Mar 8, 2018	10,115 shares, last reported balance as of Mar 6, 2018
Karen Prange	Mar 6, 2018	62,902 shares, last reported balance as of Mar 2, 2018
Paul Rose	Sep 7, 2017	18,646 shares, last reported balance as of Sep 6, 2017
Robert Minowitz	May 16, 2017	111,214 shares, last reported balance as of May 12, 2017
Michael Racioppi	Mar 21, 2017	163,596 shares, last reported balance as of Mar 20, 2017
Peter McCarthy	Mar 15, 2017	28,554 shares, last reported balance as of Mar 13, 2017
James Harding	Mar 9, 2017	147,530 shares, last reported balance as of Mar 8, 2017
Bridget Ross	Mar 8, 2017	19,308 shares, last reported balance as of Mar 6, 2017
Norman Matthews	Apr 4, 2016	117,938 shares, last reported balance as of Mar 31, 2016
Louis Sullivan	Apr 4, 2016	49,158 shares, last reported balance as of Mar 31, 2016
Lonnie Shoff	Mar 16, 2016	62,000 shares, last reported balance as of Mar 15, 2016
Stanley Komaroff	Mar 3, 2016	218,858 shares, last reported balance as of Mar 2, 2016
Leonard David	Mar 18, 2015	159,228 shares, last reported balance as of Mar 17, 2015
Karyn MASHIMA	Mar 11, 2014	42,564 shares, last reported balance as of Mar 10, 2014
Michael Zack	Mar 11, 2013	280,342 shares, last reported balance as of Mar 8, 2013
Margaret Hamburg	May 22, 2009	28,208 shares, last reported balance as of Mar 3, 2008
Marvin Schein	May 16, 2008	207,958 shares, last reported balance as of May 14, 2008
Pamela Joseph	Nov 16, 2004	910,996 shares, last reported balance as of Nov 16, 2004
Larry Gibson	Feb 9, 2004	916,000 shares, last reported balance as of May 23, 2003
Irving Shafran	Nov 24, 2003	3,000,000 shares, last reported balance as of Nov 20, 2003

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Henry Schein insiders sold $8.6M in the past 12 months. How much of their stake is that?

What stands out

Who sold, and how much of their stake

Selling by month

Outside holders, reported separately

Common questions

Is the Henry Schein CEO selling stock?

Why are Henry Schein insiders selling?

Are any Henry Schein insiders buying?

How much of their stake did Henry Schein insiders sell?

The evidence

No plan disclosed · $8.6M

Taxes

Purchases · 1 buyer (1 trade)

Sales by month