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

Who	Shares	Price	% of total stake	Total stake after	Trade date	Filed
Corinna Lathan Director	1,750	$195.75	21%	6.7K	Oct 5, 2026	Oct 6, 2026

What stands out

Kristian Talvitie sold $8.7M of stock with no disclosed trading plan. The filings don't state a reason.Largest such sale, Dec 9, 2025

Tax withholding outweighed market sales: the company withheld $14.7M of officers' and directors' shares for taxes, against $11.9M sold on the open market. The largest was Kristian Talvitie ($5.6M withheld).Largest withholding, Nov 15, 2025

Percentages cover 8 of 16 officers and directors. 8 are left out

Left out: Kristian Talvitie and Alice Christenson (most of their shares vested during the period, so a percentage would mislead); Aaron Von Staats (most holdings were last confirmed in 2019); Robert Dahdah, Trac Pham, James Lico, Jon Stevenson and Jennifer DiRico (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

Kristian Talvitie

EVP, Chief Financial Officer

Sold $9.5M (plan status beside the amount). That is 66% of the shares held or received (after tax withholding) during the period†. A share of the starting stake is not shown: most of these shares arrived during the period. Why

$9.5M9% planned 91% no plan disclosed

Aaron Von Staats

EVP, Chief Legal Officer

Sold $1.6M (plan status beside the amount). That is 32% of the shares held or received (after tax withholding) during the period†. A share of the starting stake is not shown: most of these shares arrived during the period. Why

$1.6MDisclosed plan

Corinna Lathan

Director

32% · $449KDisclosed plan

Alice Christenson

Chief Accounting Officer

Sold $349K (plan status beside the amount). That is 64% of the shares held or received (after tax withholding) during the period†. A share of the starting stake is not shown: most of these shares arrived during the period. Why

$349KNo 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.

Disclosed planNo plan disclosedOne dollar scale for every month; the tallest bar is labeled

Common questions

Is the PTC Inc. CEO selling stock?

No. Neil Barua reported no open-market sales in the past 12 months.

Why are PTC Inc. insiders selling?

Filings rarely give a reason, and we don't guess at one. What they show is how the sales were made: 24% of sales by value ran under 10b5-1 trading plans disclosed in the filings and 76% had no disclosed plan. A trading plan schedules sales in advance.

Are any PTC Inc. insiders buying?

No. Officers and directors reported no purchases in the past 12 months.

How much of their stake did PTC Inc. insiders sell?

About 1.3% overall. As a group they ended with more shares than they started with. 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 sold4 officers and directors: amount, % of holdings, trading plan

Who sold	Amount	% of holdings	Trading plan
Kristian Talvitie EVP, Chief Financial Officer	$9.5M 55K shares	66%† i † Most of the shares Kristian Talvitie sold arrived during the period, so this is shares sold as a share of the 47K held at the start plus the 67K received, less 32K withheld by the company for taxes.	9% under a disclosed plan 91% no plan disclosed
Aaron Von Staats EVP, Chief Legal Officer	$1.6M 9.2K shares	32%† i † Most of the shares Aaron Von Staats sold arrived during the period, so this is shares sold as a share of the 16K held at the start plus the 23K received, less 10K withheld by the company for taxes.	Disclosed plan
Corinna Lathan Director	$449K 2.4K shares	32%	Disclosed plan
Alice Christenson Chief Accounting Officer	$349K 2.1K shares	64%† i † Most of the shares Alice Christenson sold arrived during the period, so this is shares sold as a share of the 289 held at the start plus the 4.4K received, less 1.3K withheld by the company for taxes.	No plan disclosed

The full ownership picture16 of 16 insiders fully reconciled · 15 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

Neil Barua

President and CEO, Director

58K

92K

no sales

Vesting, gifts, unvested awards and holding lines for Neil Barua

+54Kshares vested or exercised

0gifted (net of own trusts)

−30Kwithheld by the company for taxes

173K → 270Kunvested awards, start → end

Held through	Share class	Oct 9, 2025	Oct 9, 2026
Direct	Common Stock	58,445	92,477

Paul Lacy

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

Director

54K

55K

no sales

Vesting, gifts, unvested awards and holding lines for Paul Lacy

+1.5Kshares vested or exercised

0gifted (net of own trusts)

1.5K → 0unvested 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	11,893	13,393
Trust	Common Stock	42,000	42,000

Additional holdings last reported Mar 11, 2013, not confirmed since: 508 shares. Not included in any total or percentage on this page.

Spouse, Common Stock: 508 shares, last reported Mar 11, 2013

Kristian Talvitie

Minor difference of 135 shares. Difference is under 0.5% of holdings.

EVP, Chief Financial Officer

47K

−55K

28K

not meaningful

Vesting, gifts, unvested awards and holding lines for Kristian Talvitie

+63Kshares vested or exercised

0gifted (net of own trusts)

−32Kwithheld by the company for taxes

73K → 77Kunvested awards, start → end

Held through	Share class	Oct 9, 2025	Oct 9, 2026
Direct	Common Stock	47,282	28,196

Reconciliation: minor difference of 135 shares. Difference is under 0.5% of holdings.

Janice Chaffin

Director

42K

44K

no sales

Vesting, gifts, unvested awards and holding lines for Janice Chaffin

+1.8Kshares vested or exercised

0gifted (net of own trusts)

1.8K → 1.7Kunvested awards, start → end

Held through	Share class	Oct 9, 2025	Oct 9, 2026
Direct	Common Stock	41,796	43,597

Aaron Von Staats

Most of this insider's holdings were last confirmed in 2019. Confirmed in the last three years: 19,582 shares. Not confirmed since: 37,522 shares, left out of this row. "Still held" is not shown because it would cover only the smaller, confirmed part.

EVP, Chief Legal Officer

16K

−9.2K

20K

see note

Vesting, gifts, unvested awards and holding lines for Aaron Von Staats

+21Kshares vested or exercised

0gifted (net of own trusts)

−10Kwithheld by the company for taxes

48K → 68Kunvested 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	15,743	19,582

Additional holdings last reported Nov 15, 2019, not confirmed since: 37,522 shares. Not included in any total or percentage on this page.

Direct, Common Shares: 37,522 shares, last reported Nov 15, 2019

Mark Benjamin

Director

9.7K

11K

no sales

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

+1.5Kshares vested or exercised

0gifted (net of own trusts)

2.9K → 3.4Kunvested awards, start → end

Held through	Share class	Oct 9, 2025	Oct 9, 2026
Direct	Common Stock	9,683	11,183

Amarpreet Hanspal

Director

8.8K

10K

no sales

Vesting, gifts, unvested awards and holding lines for Amarpreet Hanspal

+1.5Kshares vested or exercised

0gifted (net of own trusts)

1.5K → 0unvested awards, start → end

Held through	Share class	Oct 9, 2025	Oct 9, 2026
Direct	Common Stock	8,816	10,316

Corinna Lathan

Director

7.6K

−2.4K

6.7K

88%

Vesting, gifts, unvested awards and holding lines for Corinna Lathan

+1.5Kshares vested or exercised

0gifted (net of own trusts)

1.5K → 1.7Kunvested awards, start → end

Held through	Share class	Oct 9, 2025	Oct 9, 2026
Direct	Common Stock	7,604	6,679

Michal Katz

Director

3.4K

4.9K

no sales

Vesting, gifts, unvested awards and holding lines for Michal Katz

+1.5Kshares vested or exercised

0gifted (net of own trusts)

1.5K → 1.7Kunvested awards, start → end

Held through	Share class	Oct 9, 2025	Oct 9, 2026
Direct	Common Stock	3,375	4,875

Robert Bernshteyn

Director

1.8K

4.4K

no sales

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

+2.6Kshares vested or exercised

0gifted (net of own trusts)

4.9K → 6.6Kunvested awards, start → end

Held through	Share class	Oct 9, 2025	Oct 9, 2026
Direct	Common Stock	1,765	4,382

Alice Christenson

Minor difference of 58 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Chief Accounting Officer

289

−2.1K

1.3K

not meaningful

Vesting, gifts, unvested awards and holding lines for Alice Christenson

+2.1Kshares vested or exercised

0gifted (net of own trusts)

−1.3Kwithheld by the company for taxes

8.7K → 9.2Kunvested awards, start → end

Held through	Share class	Oct 9, 2025	Oct 9, 2026
Direct	Common Stock	289	1,265

Reconciliation: minor difference of 58 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Robert Dahdah

EVP, Chief Revenue Officer

13K

no sales

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

+18Kshares vested or exercised

0gifted (net of own trusts)

−9.8Kwithheld by the company for taxes

58K → 77Kunvested awards, start → end

Held through	Share class	Oct 9, 2025	Oct 9, 2026
Direct	Common Stock	0	12,518

Trac Pham

Director

2.6K

no sales

Vesting, gifts, unvested awards and holding lines for Trac Pham

+2.6Kshares vested or exercised

0gifted (net of own trusts)

3.8K → 2.9Kunvested awards, start → end

Held through	Share class	Oct 9, 2025	Oct 9, 2026
Direct	Common Stock	0	2,612

James Lico

Director

410

no sales

Vesting, gifts, unvested awards and holding lines for James Lico

+410shares vested or exercised

0gifted (net of own trusts)

0 → 3.6Kunvested awards, start → end

Held through	Share class	Oct 9, 2025	Oct 9, 2026
Direct	Common Stock	0	410

Jon Stevenson

Chief Product Officer

3.3K

no sales

Vesting, gifts, unvested awards and holding lines for Jon Stevenson

+4.1Kshares vested or exercised

0gifted (net of own trusts)

−1.4Kwithheld by the company for taxes

34K → 42Kunvested awards, start → end

Held through	Share class	Oct 9, 2025	Oct 9, 2026
Direct	Common Stock	0	3,331

16 of 16 insiders fully reconciled: starting holdings plus reported transactions match ending holdings (14 exactly, 2 with a minor or footnoted difference). Percentages cover 8 of 16 officers and directors. Left out: Kristian Talvitie and Alice Christenson (most of their shares vested during the period, so a percentage would mislead); Aaron Von Staats (most holdings were last confirmed in 2019); Robert Dahdah, Trac Pham, James Lico, Jon Stevenson and Jennifer DiRico (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$11.9M of sales by plan status, purpose, seller and month

Officer and director open-market sales: $11.9M across 68,720 shares. Plan status and stated purpose are separate questions, and a sale can have both.

By plan status

Disclosed plan · $2.8M · 24%

76%

The lighter segment is sales with no plan disclosed in the filing ($9.1M), including tax-related sales outside a plan.

No plan disclosed · $9.1M

Sales with no 10b5-1 plan and no tax reference in the filing. $8.7M of it is Kristian Talvitie. No plan disclosed is a statement about the filing, not about why the sale happened. Largest such sale: Kristian Talvitie, Dec 9, 2025

Taxes

84,206 shares ($14.7M) were withheld by the company for taxes, which isn't a market sale.

Seller	Shares sold	Proceeds	Under a disclosed plan	Share of total	Sales dates
Kristian Talvitie EVP, Chief Financial Officer	55K	$9.5M	9%	80%	Dec 5, 2025 to Dec 9, 2025
Aaron Von Staats EVP, Chief Legal Officer	9.2K	$1.6M	100%	13%	Dec 8, 2025 to Mar 3, 2026
Corinna Lathan Director	2.4K	$449K	100%	4%	Mar 16, 2026 to Oct 5, 2026
Alice Christenson Chief Accounting Officer	2.1K	$349K	0%	3%	Nov 25, 2025 to May 12, 2026

Sales by month

Month	Sale proceeds	Disclosed plan	To cover taxes	No plan disclosed
Oct 2025	$0	$0	$0	$0
Nov 2025	$230K	$0	$0	$230K
Dec 2025	$10.6M	$1.9M	$0	$8.7M
Jan 2026	$0	$0	$0	$0
Feb 2026	$39K	$39K	$0	$0
Mar 2026	$528K	$528K	$0	$0
Apr 2026	$0	$0	$0	$0
May 2026	$119K	$0	$0	$119K
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	$343K	$343K	$0	$0

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

Less than usual: about one-fifteenth of the 5-year average. 4 insiders sold; the average is 8 a year.

12 months ending	Shares sold	Insiders who sold	Proceeds
Oct 9, 2026 Latest 12 months	69K	4	$11.9M
Oct 9, 2025 1 year earlier	35K	5	$6.8M
Oct 9, 2024 2 years earlier	142K	11	$24.0M
Oct 10, 2023 3 years earlier	3.09M	9	$395M
Oct 10, 2022 4 years earlier	1.76M	5	$210M
Oct 10, 2021 5 years earlier	142K	11	$16.7M

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.

Kristian Talvitie: minor difference of 135 shares. Difference is under 0.5% of holdings.

Alice Christenson: minor difference of 58 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Inferred rename: "AP DiBona Family Trust" is treated as the same holder as "A/P DiBona Family Trust", because the old name was never reported again and the new one opened with the same balance (6,000 shares). Old name, new name

Inferred typo: the share class "Common Share" is treated as the same class as "Common Shares" on 1 holding line, because the two spellings are nearly identical and each balance carried over exactly. Example (Aaron Von Staats, 17,959 shares): old title, new title

Inferred typo: the share class "Common Stoch" is treated as the same class as "Common Stock" on 1 holding line, because the two spellings are nearly identical and each balance carried over exactly. Example (Blake Moret, 10,582,010 shares): old title, new title

Inferred typo: the share class "Common Stock" is treated as the same class as "Coimmon Stock" on 1 holding line, because the two spellings are nearly identical and each balance carried over exactly. Example (Janesh Moorjani, 2,658 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 methodology1,343 filings from SEC EDGAR, and how we read them

All 1,343 Forms 3, 4 and 5 filed for PTC Inc. (SEC CIK 857005) from Feb 8, 2001 to Oct 6, 2026, retrieved from SEC EDGAR on Oct 9, 2026. Prices are the ones reported in each filing, often weighted averages. 1 older filing exists only on paper and could not be read.

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 (35)No filing in 18 months; last reported balances, not in any total

Name	Last filed	Last reported balance
Robert Schechter	Feb 13, 2025	60,999 shares, last reported balance as of Feb 12, 2025
Janesh Moorjani	Dec 2, 2024	2,658 shares, last reported balance as of Nov 29, 2024
Catherine Kniker	Nov 14, 2024	14,471 shares, last reported balance as of Aug 1, 2024
Michael Ditullio	May 28, 2024	53,148 shares, last reported balance as of May 24, 2024
James Heppelmann	Feb 6, 2024	1,620,707 shares, last reported balance as of Feb 5, 2024
Blake Moret	Aug 1, 2023	13,941,537 shares, last reported balance as of Jul 31, 2023
Klaus Hoehn	Feb 17, 2023	37,577 shares, last reported balance as of Feb 16, 2023
Troy Richardson	Nov 18, 2021	16,517 shares, last reported balance as of Nov 15, 2021
Phillip Fernandez	Jun 17, 2021	23,397 shares, last reported balance as of Jun 16, 2021
Kathleen Mitford	Mar 16, 2021	55,928 shares, last reported balance as of Mar 15, 2021
Kevin Wrenn	Feb 10, 2021	8,838 shares, last reported balance as of Feb 8, 2021
Eduarda Camacho	Nov 19, 2020	11,325 shares, last reported balance as of Nov 19, 2020
Donald Grierson	Feb 13, 2020	42,426 shares, last reported balance as of Feb 12, 2020
Matthew Cohen	Nov 19, 2019	74,416 shares, last reported balance as of Nov 15, 2019
Andrew Miller	Mar 5, 2019	466 shares, last reported balance as of Mar 1, 2019
Barry Cohen	Dec 7, 2018	52,329 shares, last reported balance as of Dec 4, 2018
Anthony Dibona	Jul 25, 2018	34,790 shares, last reported balance as of Jul 24, 2018
Craig Hayman	Nov 17, 2017	119,082 shares, last reported balance as of Nov 15, 2017
Renato Zambonini	Mar 3, 2017	66,619 shares, last reported balance as of Mar 1, 2017
Robert Gremley	Nov 17, 2016	8,611 shares, last reported balance as of Nov 16, 2016
Robert Ranaldi	Nov 9, 2015	41,256 shares, last reported balance as of Nov 2, 2015
Michael Porter	Mar 5, 2015	231,599 shares, last reported balance as of Mar 4, 2015
Thomas Bogan	Mar 5, 2015	46,826 shares, last reported balance as of Mar 4, 2015
Jeffrey Glidden	Nov 17, 2014	163,266 shares, last reported balance as of Nov 15, 2014
Marc Diouane	Jan 27, 2014	13,762 shares, last reported balance as of Jan 27, 2014
William Berutti	Jul 16, 2012	20,791 shares, last reported balance as of Jul 15, 2012
Richard Harrison	Jul 2, 2012	2,839,685 shares, last reported balance as of Jun 30, 2012
Brian Shepherd	May 2, 2012	29,148 shares, last reported balance as of May 1, 2012
Martha Durcan	Nov 29, 2011	1,030 shares, last reported balance as of Nov 21, 2011
Paul Cunningham	Mar 9, 2011	51,802 shares, last reported balance as of Nov 16, 2010
Cornelius Moses III	Nov 17, 2010	181,823 shares, last reported balance as of Nov 15, 2010
Robert Goldman	Mar 5, 2010	91,295 shares, last reported balance as of Mar 3, 2010
Noel Posternak	Mar 2, 2010	143,671 shares, last reported balance as of Feb 26, 2010
Oscar Marx III	Mar 6, 2008	57,715 shares, last reported balance as of Mar 5, 2008
Joseph Odonnell	Mar 9, 2007	32,288 shares, last reported balance as of Mar 7, 2007

Spotted something wrong on this page? Report an error. We check every report against the SEC filing and list what we fix in the corrections log.

PTC Inc. insiders sold $11.9M 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

Common questions

Is the PTC Inc. CEO selling stock?

Why are PTC Inc. insiders selling?

Are any PTC Inc. insiders buying?

How much of their stake did PTC Inc. insiders sell?

The evidence

No plan disclosed · $9.1M

Taxes

Sales by month