Odyssey Therapeutics ODTX Insider Ownership

NASDAQ ODTX

$19.30 -0.30 (-1.53%)

At close: Oct 26, 2026 · 4:00 PM EDT

Insider Holdings by Owner

14.95Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026

Insider Ownership

24.26%

■0% pp QoQ

Shares Held by Insiders

11.62Mn

filed for Sep 2026

■0.00% QoQ

Shares Outstanding

47.89Mn

47,891,251 shares

Direct Holdings

4.10Mn

Indirect: 7.52Mn

Net Open-Market Trades

no open-market trades in Sep 2026

Insiders Holding Shares

with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Open-Market Insider Trades

Bought Sold

Latest quarter —

Net over range —

Net-buying quarters —

Insider Ownership Summary

Updated Oct 10, 2026

Over the trailing 12 months, ODTX insiders bought $75.32 million worth of shares (4.18Mn shares) and sold $32,040 worth (1.78K shares) in open-market trades.

By number of insiders, Odyssey Therapeutics saw 7 insiders buy and one insider sell on the open market over the past 12 months.
Among Odyssey Therapeutics insiders, TPG GP A, LLC led open-market buying over the past 12 months with $25 million of purchases (1.39Mn shares); the latest was on May 11, 2026.
On the sell side, Sr One Capital Management, LLC (10% owner) led open-market sales of Odyssey Therapeutics stock over the past 12 months with $32,040 (1.78K shares), most recently on May 11, 2026.
Outside the open market, Odyssey Therapeutics insiders acquired 8.61Mn shares through option exercises and conversions and gave up 21 shares to cover taxes or exercise prices over the past 12 months.
Business Quant data shows Odyssey Therapeutics insiders holding 11.62Mn shares in total in their latest Form 4 filings, unchanged from 11.62Mn shares at the end of Q2 2026.
Of the 11.62Mn shares held by Odyssey Therapeutics insiders, 4.1Mn shares (35.30%) are held directly and 7.52Mn shares (64.70%) indirectly, through trusts, partnerships, family members and other entities.
Holdings in Odyssey Therapeutics stock are reported by 8 insiders, the officers, directors and 10% owners who have filed a Form 4 in the past two years.
Odyssey Therapeutics' three largest insider shareholders, based on their latest Form 4 filings, are Sr One Capital Management, LLC (10% owner, 3.79Mn shares), TPG GP A, LLC (3.69Mn shares) and Dimension Capital II, L.P. (Director, 3.33Mn shares).
Sr One Capital Management, LLC holds 32.66% of the combined insider position in Odyssey Therapeutics.
Institutional investors held 72.70% of Odyssey Therapeutics stock at the end of Q2 2026, while the latest Form 4 filings of its insiders account for about 24.26%; other investors, including the public, hold roughly 3.04%.
In the past year, 15 insiders of Odyssey Therapeutics submitted 15 Form 4 filings reporting trades, awards or other transactions.
The insider data for ODTX reflects Form 4 filings through May 13, 2026.

Form 4 Holdings

Insiders Holding ODTX

Insiders 9

Shares held 14.95Mn

Of outstanding 31.22%

#	Insider	Position	Direct	Indirect	Total	Share of Insiders	Last Filed
1	One Capital Management, Llc Sr	TenPercentOwner	0	3,794,883	3,794,883	25.4%	11 May, 2026
2	Gp A, Llc Tpg	Other	0	3,690,146	3,690,146	24.7%	13 May, 2026
3	Nan (Ln) Li	Director	0	3,333,516	3,333,516	22.3%	11 May, 2026
4	Capital Ii, L.P. Dimension	Director	3,333,516	0	3,333,516	22.3%	12 May, 2026
5	Gary D Glick	Director, Officer	415,973	0	415,973	2.8%	11 May, 2026
6	Jeffrey M Leiden	Director	270,198	31,644	301,842	2.0%	11 May, 2026
7	Jason Haas	Chief Financial Officer	62,908	0	62,908	0.4%	11 May, 2026
8	Shelley Chu	Director	11,111	0	11,111	0.1%	11 May, 2026
9	Anthony W. Opipari	Officer	7,502	0	7,502	0.1%	11 May, 2026

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

79 Insider Transactions

Source SEC Form 4

Latest quarter Sep 2026

Date	Insider	Position	Transaction	Shares	Price	Value	Shares Held After	Ownership
11 May, 2026	Gp A, Llc Tpg	Other	Acquired J	423,111	—	—	423,111	Indirect
11 May, 2026	Gp A, Llc Tpg	Other	Disposed J	2,351	$18.00	$42.32K	420,760	Indirect
11 May, 2026	Gp A, Llc Tpg	Other	Acquired C	1,880,497	—	—	2,301,257	Indirect
11 May, 2026	Gp A, Llc Tpg	Other	Acquired P	1,388,889	$18.00	$25.00Mn	3,690,146	Indirect
11 May, 2026	Gp A, Llc Tpg	Other	Disposed J	423,111	—	—	0	Indirect
11 May, 2026	Gp A, Llc Tpg	Other	Disposed C	18,272,789	—	—	0	Indirect
08 May, 2026	Capital Ii, L.P. Dimension	Director	Acquired C	1,709,543	—	—	2,222,405	Direct
08 May, 2026	Capital Ii, L.P. Dimension	Director	Acquired P	1,111,111	$18.00	$20.00Mn	3,333,516	Direct
08 May, 2026	Capital Ii, L.P. Dimension	Director	Disposed C	16,611,626	—	—	0	Direct
07 May, 2026	Ian F Smith	Director	Acquired A	27,393	$0.00	$0	27,393	Direct
07 May, 2026	Timothy P Walbert	Director	Acquired A	27,393	$0.00	$0	27,393	Direct
11 May, 2026	Gary D Glick	Director, Officer	Acquired C	27,386	—	—	415,973	Direct
08 May, 2026	Jeffrey M Leiden	Director	Acquired P	5,000	$20.00	$100.00K	270,198	Direct
07 May, 2026	Ourania Tatsis	Director	Acquired A	27,393	$0.00	$0	27,393	Direct
07 May, 2026	Collin M Todd	Officer	Acquired A	93,904	$0.00	$0	93,904	Direct
07 May, 2026	Valerie Odegard	Director	Acquired A	27,393	$0.00	$0	27,393	Direct
08 May, 2026	Jason Haas	Chief Financial Officer	Acquired P	1,000	$20.00	$20.00K	62,908	Direct
07 May, 2026	Natalie Dales	Officer	Acquired A	79,773	$0.00	$0	79,773	Direct
11 May, 2026	One Capital Management, Llc Sr	TenPercentOwner	Acquired C	474,048	—	—	474,048	Indirect
11 May, 2026	Anthony W. Opipari	Officer	Acquired C	6,965	—	—	6,965	Direct

Showing 1 to 20 of 79 transactions