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

What stands out

Three directors sold $5.3M with no disclosed plan: Kathy Weiler ($2.1M), John Johnson ($1.9M) and Amy Wendell ($1.4M). The filings don't state a reason.Kathy Weiler: largest such sale, May 7, 2026 · John Johnson: largest such sale, May 7, 2026 · Amy Wendell: largest such sale, Dec 16, 2025

A share of stake is shown for 0 of the 12 officers and directors who sold. 14 are left out

Left out: Erick DeVinney, Doris Quackenbush, Amy Wendell, Guido Neels, Alan Levine, Paul Thomas, Jens Kemp, John Johnson, Lindsey Hartley, Marc Began, Kathy Weiler, William Burke, Joseph Tyndall and Michael Dale (share of stake is being verified).

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

Who sold, and how much of their stake

Officers and directors, past 12 months. Their share of stake is being verified and is not shown yet; amounts and trading plans are below.

Marc Began

EVP & General Counsel

Not confirmed

Share of stake not shown: share of stake is being verified. Why

$3.9M82% planned, 7% to cover taxes 10% no plan disclosed

Kathy Weiler

Director

Not confirmed

Share of stake not shown: share of stake is being verified. Why

$2.7M23% planned 77% no plan disclosed

Michael Dale

Chief Executive Officer

Not confirmed

Share of stake not shown: share of stake is being verified. Why

$2.7M72% to cover taxes 28% no plan disclosed

William Burke

Director

Not confirmed

Share of stake not shown: share of stake is being verified. Why

$2.2MDisclosed plan

Amy Wendell

Director

Not confirmed

Share of stake not shown: share of stake is being verified. Why

$2.0M32% planned 68% no plan disclosed

All 12 sellers

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 planTo cover taxesNo plan disclosedOne dollar scale for every month; the tallest bar is labeled

Recent activity

Past 30 days, Sep 17, 2026 to Oct 16, 2026

No officer or director trades were reported for the past 30 days. The most recent before that:

Sep 2, 2026Joseph Tyndall sold 3.5K shares ($174K) under a disclosed trading plan.

Who	Shares	Price	% of total stake	Total stake after	Trade date	Filed
Joseph Tyndall Director	3,500	$49.70	n/a	n/a	Sep 2, 2026	Sep 4, 2026

Outside holders, reported separately

Guido Neels 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 Axogen, Inc. CEO selling stock?

Yes. Michael Dale sold 86K shares ($2.7M) in the past 12 months, none of it under a trading plan disclosed in the filings.

Why are Axogen, Inc. insiders selling?

Filings rarely give a reason, and we don't guess at one. What they show is how the sales were made: 36% of sales by value ran under 10b5-1 trading plans disclosed in the filings, 17% were to cover taxes and 48% had no disclosed plan. A trading plan schedules sales in advance.

Are any Axogen, Inc. insiders buying?

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

The evidence

Who sold12 officers and directors: amount, % of holdings, trading plan

Who sold	Amount	% of holdings	Trading plan
Marc Began EVP & General Counsel	$3.9M 90K shares	Not confirmed share of stake is being verified. Why	82% under a disclosed plan, 7% to cover taxes 10% no plan disclosed
Kathy Weiler Director	$2.7M 77K shares	Not confirmed share of stake is being verified. Why	23% under a disclosed plan 77% no plan disclosed
Michael Dale Chief Executive Officer	$2.7M 86K shares	Not confirmed share of stake is being verified. Why	72% to cover taxes 28% no plan disclosed
William Burke Director	$2.2M 100K shares	Not confirmed share of stake is being verified. Why	Disclosed plan
Amy Wendell Director	$2.0M 59K shares	Not confirmed share of stake is being verified. Why	32% under a disclosed plan 68% no plan disclosed
John Johnson Director	$1.9M 56K shares	Not confirmed share of stake is being verified. Why	No plan disclosed
Joseph Tyndall Director	$952K 29K shares	Not confirmed share of stake is being verified. Why	18% under a disclosed plan 82% no plan disclosed
Lindsey Hartley CFO	$942K 30K shares	Not confirmed share of stake is being verified. Why	No plan disclosed
Erick DeVinney Chief Innovation Officer	$781K 25K shares	Not confirmed share of stake is being verified. Why	To cover taxes
Paul Thomas Director	$634K 21K shares	Not confirmed share of stake is being verified. Why	No plan disclosed
Jens Kemp Chief Marketing Officer	$428K 12K shares	Not confirmed share of stake is being verified. Why	59% to cover taxes 41% no plan disclosed
Doris Quackenbush Sales VP	$169K 3.9K shares	Not confirmed share of stake is being verified. Why	No plan disclosed

Board members representing outside shareholders, reported separately: Guido Neels. Details

The full ownership picture0 of 14 officers and directors confirmed

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 16, 2025

Sold

Held Oct 16, 2026

Still held

Erick DeVinney

Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Erick DeVinney are complete.

Chief Innovation Officer

n/a

−25K

n/a

Vesting, gifts, unvested awards and holding lines for Erick DeVinney

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Erick DeVinney are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)

−25Kwithheld by the company for taxes

Doris Quackenbush

Sales VP

n/a

−3.9K

n/a

Vesting, gifts, unvested awards and holding lines for Doris Quackenbush

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Doris Quackenbush are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)

Stock options (not counted as shares):

Options held	Strike price	Expires	Intrinsic value (estimate)
12,375	$8.27	Mar 16, 2033	$513K
5,345	$8.20	Mar 16, 2032	$222K
10,285	$8.60	Feb 1, 2032	$423K
15,542	$11.88	Mar 2, 2030	$588K

Estimate: options held × ($49.70 − strike price), using the most recent insider trade price on Form 4 (Sep 2, 2026), not a market close.

Amy Wendell

Director

n/a

−59K

n/a

Vesting, gifts, unvested awards and holding lines for Amy Wendell

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Amy Wendell are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)

Guido Neels

Director

n/a

Vesting, gifts, unvested awards and holding lines for Guido Neels

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Guido Neels are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)

Stock options (not counted as shares):

Options held	Strike price	Expires	Intrinsic value (estimate)
18,248	$7.04	Jun 6, 2034	$778K

Estimate: options held × ($49.70 − strike price), using the most recent insider trade price on Form 4 (Sep 2, 2026), not a market close.

Alan Levine

Director

n/a

Vesting, gifts, unvested awards and holding lines for Alan Levine

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Alan Levine are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)

Stock options (not counted as shares):

Options held	Strike price	Expires	Intrinsic value (estimate)
18,248	$7.04	Jun 6, 2034	$778K

Estimate: options held × ($49.70 − strike price), using the most recent insider trade price on Form 4 (Sep 2, 2026), not a market close.

Paul Thomas

Director

n/a

−21K

n/a

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

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Paul Thomas are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)

Stock options (not counted as shares):

Options held	Strike price	Expires	Intrinsic value (estimate)
18,248	$7.04	Jun 6, 2034	$778K

Estimate: options held × ($49.70 − strike price), using the most recent insider trade price on Form 4 (Sep 2, 2026), not a market close.

Jens Kemp

Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. See the filing Sales and other transactions for Jens Kemp are complete.

Chief Marketing Officer

n/a

−12K

n/a

Vesting, gifts, unvested awards and holding lines for Jens Kemp

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Jens Kemp are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)

−18Kwithheld by the company for taxes

Stock options (not counted as shares):

Options held	Strike price	Expires	Intrinsic value (estimate)
60,000	$8.16	Mar 1, 2033	$2.5M

Estimate: options held × ($49.70 − strike price), using the most recent insider trade price on Form 4 (Sep 2, 2026), not a market close.

John Johnson

Director

n/a

−56K

n/a

Vesting, gifts, unvested awards and holding lines for John Johnson

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for John Johnson are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)

Stock options (not counted as shares):

Options held	Strike price	Expires	Intrinsic value (estimate)
18,248	$7.04	Jun 6, 2034	$778K

Estimate: options held × ($49.70 − strike price), using the most recent insider trade price on Form 4 (Sep 2, 2026), not a market close.

Lindsey Hartley

CFO

n/a

−30K

n/a

Vesting, gifts, unvested awards and holding lines for Lindsey Hartley

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Lindsey Hartley are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)

−17Kwithheld by the company for taxes

Stock options (not counted as shares):

Options held	Strike price	Expires	Intrinsic value (estimate)
23,700	$8.27	Mar 16, 2033	$982K

Estimate: options held × ($49.70 − strike price), using the most recent insider trade price on Form 4 (Sep 2, 2026), not a market close.

Marc Began

EVP & General Counsel

n/a

−90K

n/a

Vesting, gifts, unvested awards and holding lines for Marc Began

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Marc Began are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)

−13Kwithheld by the company for taxes

Stock options (not counted as shares):

Options held	Strike price	Expires	Intrinsic value (estimate)
22,500	$8.16	Mar 1, 2033	$935K

Estimate: options held × ($49.70 − strike price), using the most recent insider trade price on Form 4 (Sep 2, 2026), not a market close.

Kathy Weiler

Director

n/a

−77K

n/a

Vesting, gifts, unvested awards and holding lines for Kathy Weiler

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Kathy Weiler are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)

Stock options (not counted as shares):

Options held	Strike price	Expires	Intrinsic value (estimate)
65,476	$6.95	Dec 20, 2033	$2.8M
27,307	$6.95	Dec 20, 2033	$1.2M

Estimate: options held × ($49.70 − strike price), using the most recent insider trade price on Form 4 (Sep 2, 2026), not a market close.

William Burke

Director

n/a

−100K

n/a

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

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for William Burke are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)

Joseph Tyndall

Director

n/a

−29K

n/a

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

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Joseph Tyndall are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)

Stock options (not counted as shares):

Options held	Strike price	Expires	Intrinsic value (estimate)
32,311	$10.95	Dec 13, 2032	$1.3M

Estimate: options held × ($49.70 − strike price), using the most recent insider trade price on Form 4 (Sep 2, 2026), not a market close.

Michael Dale

Chief Executive Officer

n/a

−86K

n/a

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

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Michael Dale are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)

Holdings and share of stake for Axogen, Inc. are being verified, so no balances, unit counts or percentages are shown. Sales, proceeds, plan and tax status, titles and dates come straight from individual filings.

What explains the selling$19.3M of sales by plan status, purpose, seller and month

Officer and director open-market sales: $19.3M across 589,288 shares. Plan status and stated purpose are separate questions, and a sale can have both.

By plan status

Disclosed plan · $6.9M · 36%

64%

The lighter segment is sales with no plan disclosed in the filing ($12.4M), including tax-related sales outside a plan.

No plan disclosed · $9.2M

Sales with no 10b5-1 plan and no tax reference in the filing. $2.1M of it is Kathy Weiler. No plan disclosed is a statement about the filing, not about why the sale happened. Largest such sale: Michael Dale, Dec 10, 2025

Taxes

$3.2M of sales (16.8%) cite tax obligations in their footnotes. Separately, 73,270 shares ($2.3M) were withheld by the company for taxes, which isn't a market sale. Example: Erick DeVinney, Mar 16, 2026

Seller	Shares sold	Proceeds	Under a disclosed plan	Share of total	Sales dates
Marc Began EVP & General Counsel	90K	$3.9M	82%	20%	Dec 9, 2025 to Aug 10, 2026
Kathy Weiler Director	77K	$2.7M	23%	14%	Dec 16, 2025 to Aug 7, 2026
Michael Dale Chief Executive Officer	86K	$2.7M	0%	14%	Dec 9, 2025 to Dec 10, 2025
William Burke Director	100K	$2.2M	100%	12%	Oct 22, 2025 to Nov 11, 2025
Amy Wendell Director	59K	$2.0M	32%	10%	Dec 16, 2025 to Aug 11, 2026
John Johnson Director	56K	$1.9M	0%	10%	Dec 8, 2025 to May 7, 2026
Joseph Tyndall Director	29K	$952K	18%	5%	Dec 9, 2025 to Sep 2, 2026
Lindsey Hartley CFO	30K	$942K	0%	5%	Dec 8, 2025 to May 7, 2026
Erick DeVinney Chief Innovation Officer	25K	$781K	0%	4%	Dec 9, 2025 to Mar 16, 2026
Paul Thomas Director	21K	$634K	0%	3%	Dec 9, 2025 to Dec 9, 2025
Jens Kemp Chief Marketing Officer	12K	$428K	0%	2%	Dec 9, 2025 to May 7, 2026
Doris Quackenbush Sales VP	3.9K	$169K	0%	0.9%	May 7, 2026 to May 7, 2026

Sales by month

Month	Sale proceeds	Disclosed plan	To cover taxes	No plan disclosed
Oct 2025	$1.3M	$1.3M	$0	$0
Nov 2025	$951K	$951K	$0	$0
Dec 2025	$10.6M	$0	$3.1M	$7.5M
Jan 2026	$0	$0	$0	$0
Feb 2026	$0	$0	$0	$0
Mar 2026	$171K	$0	$171K	$0
Apr 2026	$0	$0	$0	$0
May 2026	$1.7M	$0	$0	$1.7M
Jun 2026	$0	$0	$0	$0
Jul 2026	$0	$0	$0	$0
Aug 2026	$4.5M	$4.5M	$0	$0
Sep 2026	$174K	$174K	$0	$0
Oct 2026	$0	$0	$0	$0

Board members representing outside shareholders (1)Listed and sourced; not part of the management totals or the answer line

Directors whose reported holdings sit mostly in an investment fund or a corporate shareholder they represent, not in their own name, with beneficial ownership disclaimed except for their own financial interest. Listed and sourced here; not part of the management totals or the answer line. Shares a fund hands to its own investors are distributions, not sales.

Board member	Held Oct 16, 2025	Sold	Held Oct 16, 2026	Still held
Guido Neels ! Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Guido Neels are complete. Director	n/a	0	n/a	n/a
Vesting, gifts, unvested awards and holding lines for Guido Neels Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Guido Neels are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts)

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

More than usual: $19.3M sold, after almost none in the past 5 years. 12 insiders sold; the average is 5 a year.

12 months ending	Shares sold	Insiders who sold	Proceeds
Oct 16, 2026 Latest 12 months	589K	12	$19.3M
Oct 16, 2025 1 year earlier	128K	8	$1.8M
Oct 16, 2024 2 years earlier	131K	6	$1.1M
Oct 17, 2023 3 years earlier	192K	2	$1.9M
Oct 17, 2022 4 years earlier	46K	1	$477K
Oct 17, 2021 5 years earlier	257K	9	$4.4M

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 uncertainty14 officers and directors not confirmed

Holdings and share of stake are being verified. Balances, unit counts and every share-of-stake figure for Axogen, Inc. are held back until that check is finished. Sales, proceeds, plan and tax status, titles and dates come straight from individual filings and are complete.

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

Sources and methodology705 filings on record, 54 filed in the 12-month period, and how we read them

All 705 Forms 3, 4 and 5 on record for Axogen, Inc. (SEC CIK 805928), filed from May 4, 2004 to Sep 4, 2026; 54 of them were filed in the 12 months this page covers, retrieved from SEC EDGAR on Oct 16, 2026. Prices are the ones reported in each filing, often weighted averages.

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

Name	Last filed	Last reported balance
Nir Naor	Jan 6, 2025	260,868 shares, last reported balance as of Jan 6, 2025
Gregory Freitag	Jun 6, 2024	283,498 shares, last reported balance as of Jun 4, 2024
Karen Zaderej	Mar 25, 2024	1,143,788 shares, last reported balance as of Mar 21, 2024
Michael Donovan	Mar 25, 2024	54,250 shares, last reported balance as of Mar 21, 2024
Angelo Scopelianos	Mar 25, 2024	57,994 shares, last reported balance as of Mar 21, 2024
Peter Mariani	Dec 13, 2023	63,603 shares, last reported balance as of Dec 11, 2023
Maria Martinez	Oct 13, 2023	30,476 shares, last reported balance as of Oct 13, 2023
Bradley Ottinger	Mar 20, 2023	23,627 shares, last reported balance as of Mar 16, 2023
Isabelle Billet	Dec 29, 2022	25,065 shares, last reported balance as of Dec 27, 2022
Eric Sandberg	Jul 20, 2022	16,081 shares, last reported balance as of Jul 19, 2022
Mark Gold	Jun 3, 2022	1,762,499 shares, last reported balance as of Jun 1, 2022
Quentin Blackford	Apr 1, 2022	27,335 shares, last reported balance as of Mar 30, 2022
Mark Friedman	Mar 18, 2022	24,343 shares, last reported balance as of Mar 16, 2022
Robert Rudelius	Sep 8, 2020	48,183 shares, last reported balance as of Sep 3, 2020
David Hansen	May 16, 2019	25,588 shares, last reported balance as of May 13, 2019
Jon Gingrich	Feb 19, 2019	4,190 shares, last reported balance as of Feb 15, 2019
Jamie Grooms	Sep 24, 2018	151,948 shares, last reported balance as of Sep 20, 2018
Shawn McCarrey	Aug 9, 2018	82,921 shares, last reported balance as of Aug 7, 2018
Lisa Colleran	Jul 11, 2018	No balance on record
Kevin Leach	Dec 20, 2017	2,000 shares, last reported balance as of Oct 7, 2016
Essex Woodlands Fund IX, L.P.	Nov 21, 2017	3,711,111 shares, last reported balance as of Nov 20, 2017
John Engels	Oct 14, 2016	98,425 shares, last reported balance as of Oct 7, 2016
Joseph Mandato	Aug 10, 2016	2,902,784 shares, last reported balance as of Jun 3, 2015
Joseph Mandato	Aug 10, 2016	1,226,773 shares, last reported balance as of Aug 9, 2016
James Flynn	Jul 21, 2016	3,000,000 shares, last reported balance as of Jul 21, 2016
Lee Johnston Jr.	Jun 3, 2015	25,000 shares, last reported balance as of Jun 2, 2015
John Harper	Jan 6, 2015	300,651 shares, last reported balance as of Aug 14, 2013
Jill Schiaparelli	Dec 31, 2014	12,750 shares, last reported balance as of May 20, 2014
De Novo Ventures II, L.P.	Sep 7, 2012	1,426,392 shares, last reported balance as of Dec 31, 2011
Bradley Hedger	Mar 22, 2012	No balance on record
Larry Hopfenspirger	Sep 28, 2011	459,325 shares, last reported balance as of Sep 28, 2011
Elmer Salovich	Feb 23, 2011	100,000 shares, last reported balance as of Feb 18, 2011
Lowell Hellervik	Jan 28, 2011	15,500 shares, last reported balance as of Jan 26, 2011
Sanford Brink	Nov 2, 2010	345,280 shares, last reported balance as of Nov 1, 2010
Timothy Heaney	Nov 2, 2010	No balance on record
Kevin Worms-Lynch	Nov 2, 2010	No balance on record
Ramanathan Periakaruppan	Feb 19, 2010	219,363 shares, last reported balance as of Feb 9, 2010
Judd Berlin	Sep 30, 2008	137,145 shares, last reported balance as of May 29, 2003
Daniel Sigg	Sep 30, 2008	No balance on record
Andrew Rollwagen	Sep 30, 2008	No balance on record
Timothy Quinn	May 20, 2004	No balance on record
John LeGray	May 4, 2004	No balance on record
Timothy Fitzgerald	May 4, 2004	No balance on record

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.

Axogen, Inc. insiders sold $19.3M 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

Recent activity

Outside holders, reported separately

Common questions

Is the Axogen, Inc. CEO selling stock?

Why are Axogen, Inc. insiders selling?

Are any Axogen, Inc. insiders buying?

The evidence

No plan disclosed · $9.2M

Taxes

Sales by month