Kolchinsky Peter

Former 10% Owner at Satsuma Pharmaceuticals, Inc. · on record since Jun 12, 2023
Former 10% owners and Director at DICE Therapeutics, Inc. · on record since Aug 9, 2023
Director at Black Diamond Therapeutics, Inc. · on record since Jul 7, 2023
10% owner at ARS Pharmaceuticals, Inc. · on record since Mar 27, 2024
10% owner at Boundless Bio, Inc. · on record since Mar 27, 2024
10% owner at LIPID SCIENCES INC/ · on record since Dec 29, 2006
Director at Cidara Therapeutics, Inc. · on record since Apr 30, 2024
Former 10% Owner at iTeos Therapeutics, Inc. · on record since May 14, 2024
10% owner at ARADIGM CORP · on record since Mar 28, 2007
Director at Septerna, Inc. · on record since Oct 30, 2024
10% owner at Septerna, Inc. · on record since Oct 30, 2024
10% owner at 4D Molecular Therapeutics, Inc. · on record since Nov 25, 2024
10% owner at CURIS INC · on record since Aug 15, 2007
Director at Sionna Therapeutics, Inc. · on record since Feb 10, 2025
10% owner at Sionna Therapeutics, Inc. · on record since Feb 10, 2025
10% owner at Cidara Therapeutics, Inc. · on record since Jun 30, 2025
10% owner at Prelude Therapeutics Inc · on record since Apr 28, 2026
10% owner at SEQUENOM INC · on record since Jun 27, 2008
Director at · on record since Nov 5, 2025
10% owner at · on record since Nov 5, 2025
10% owner at · on record since Sep 26, 2008
Director at · on record since Feb 11, 2026
10% owner at · on record since Feb 11, 2026
10% owner at · on record since Jul 17, 2026
Director at · on record since Jul 22, 2026
10% owner at · on record since Jul 22, 2026
Director at · on record since Apr 6, 2026
10% owner at · on record since Apr 6, 2026
10% owner at · on record since Apr 13, 2026
10% owner at · on record since Oct 31, 2016
Director at · on record since Apr 23, 2026
10% owner at · on record since Apr 23, 2026
Director at · on record since Apr 29, 2026
10% owner at · on record since Apr 29, 2026
Director at · on record since Apr 30, 2026
10% owner at · on record since Apr 30, 2026
10% owner at · on record since May 12, 2026
Director at · on record since May 13, 2026
10% owner at · on record since May 13, 2026
Director at · on record since Jun 5, 2026
10% owner at · on record since Jun 5, 2026
10% owner at · on record since Nov 23, 2016
10% owner at · on record since May 1, 2013
10% owner at · on record since Oct 4, 2013
Director at · on record since Jan 29, 2014
10% owner at · on record since Jan 29, 2014
Director at · on record since Jun 1, 2026
10% owner at · on record since Jun 1, 2026
Fmr 10% Owner - See Fn (1)-(5) at · on record since Jan 13, 2014
Director at · on record since Jun 9, 2026
Director at · on record since Jun 10, 2026
10% owner at · on record since Jun 10, 2026
Director at · on record since Jun 11, 2026
10% owner at · on record since Jun 11, 2026
10% owner at · on record since Jun 15, 2026
Director at · on record since Jun 15, 2026
10% owner at · on record since Jun 15, 2026
Former 10% Owner, See FN(5)(6) at · on record since Oct 1, 2014
10% owner at · on record since Feb 18, 2015
Former 10% Owner. at · on record since Feb 18, 2015
10% owner at · on record since Oct 30, 2015
Director at · on record since Nov 18, 2015
10% owner at · on record since Nov 18, 2015
Fmr 10% Owner See Footnote (2) at · on record since May 24, 2017
Director at · on record since Jun 22, 2017
10% owner at · on record since May 16, 2017
former 10% owner at · on record since Jul 26, 2017
10% owner at · on record since Jul 19, 2017
10% owner at · on record since Nov 21, 2017
Director at · on record since Oct 16, 2017
10% owner at · on record since Jun 22, 2018
Director at · on record since Jun 19, 2018
10% owner at · on record since Sep 26, 2018
10% owner at · on record since Oct 25, 2018
Director at · on record since Dec 13, 2018
10% owner at · on record since Dec 13, 2018
Director at · on record since Oct 5, 2018
Former 10% Owner at · on record since Oct 3, 2018
10% owner at · on record since Sep 17, 2019
Director at · on record since Sep 12, 2019
10% owner at · on record since Oct 18, 2019
Director at · on record since Nov 13, 2019
10% owner at · on record since Nov 13, 2019
10% owner at · on record since Nov 4, 2019
10% owner at · on record since Mar 17, 2020
10% owner at · on record since Mar 5, 2020
10% owner at · on record since Jun 25, 2020
Director at · on record since Jun 24, 2020
10% owner at · on record since Jun 24, 2020
10% owner at · on record since Jun 18, 2020
10% owner at · on record since May 7, 2020
10% owner at · on record since Sep 29, 2020
10% owner at · on record since Jul 29, 2020
10% owner at · on record since Jul 28, 2020
10% owner at · on record since Aug 24, 2020
10% owner at · on record since Jul 22, 2020
Director at · on record since Jul 7, 2020
Chief Executive Officer at · on record since Jul 7, 2020
Director at · on record since Jul 29, 2021
10% owner at · on record since Dec 17, 2020
Director at · on record since Dec 15, 2020
10% owner at · on record since Dec 15, 2020
10% owner at · on record since Nov 6, 2020
Former 10% Owner at · on record since Dec 4, 2020
10% owner at · on record since Oct 2, 2020
10% owner at · on record since Dec 2, 2020
Director at · on record since Mar 17, 2021
Chief Executive Officer at · on record since Mar 17, 2021
Director at · on record since Feb 11, 2021
Director at · on record since Jun 29, 2021
10% owner at · on record since Jun 29, 2021
Director at · on record since Apr 29, 2021
Director at · on record since Jul 28, 2021
10% owner at · on record since Jul 28, 2021
Director at · on record since Sep 20, 2021
10% owner at · on record since Sep 20, 2021
10% owner at · on record since Aug 13, 2021
10% owner at · on record since Mar 16, 2022
Director at · on record since May 12, 2022
10% owner at · on record since May 12, 2022
Director at · on record since Jun 10, 2022
10% owner at · on record since Aug 26, 2022
Former 10% owner at · on record since Feb 27, 2023
Director at · on record since Feb 16, 2023
10% owner at · on record since Feb 13, 2023
10% owner at · on record since Mar 31, 2022
10% owner at · on record since Sep 23, 2020
Director at · on record since Nov 10, 2022
Director at · on record since Jun 12, 2026
10% owner at · on record since Jun 12, 2026

Insider trading activity of Kolchinsky Peter

Transactions on record: 399; since Jun 13, 2008

Open-market buys: 125; $974.4M

Open-market sells: 102; $34.9B

Companies traded: 46; last filing Dec 15, 2025

Figures computed from official regulatory filings — .

Companies where Kolchinsky Peter has traded

11 tx · $50.7M · Dec 15, 2025
13 tx · $1.2M · Nov 24, 2025
9 tx · $10.4M · Oct 30, 2025
5 tx · $125M · Jun 30, 2025
2 tx · Jun 27, 2025
4 tx · $11.8M · Jun 6, 2025
3 tx · $27.2M · Jun 6, 2025
2 tx · Apr 30, 2025
3 tx · $27.7M · Feb 21, 2025
8 tx · $85.8M · Feb 3, 2025
2 tx · $53.7M · Oct 22, 2024
12 tx · $104.7M · Jul 24, 2024
1 tx · May 28, 2024
3 tx · $100M · May 14, 2024

Track record of Kolchinsky Peter

Statistical track record

Free account

Open-market buys: 131

Last buy: Dec 12, 2025

Win rates, median returns and the proven-insider analysis come with a free account.

Transaction history of Kolchinsky Peter

Co-insiders of Kolchinsky Peter

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
Climb Bio, Inc.Listing on record	Dec 15, 2025	Buy	213,099	2.18 USD	$464.6K	conv 20	SEC
Climb Bio, Inc.Listing on record	Dec 15, 2025	Other	-20,440,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Climb Bio, Inc.Listing on record	Dec 15, 2025	AwardD (derivative)	20,440,000	—	n/a (No price was disclosed in the filing)		SEC
Climb Bio, Inc.Listing on record	Dec 15, 2025	Buy	101,462	2.86 USD	$290.2K	conv 18	SEC
Sionna Therapeutics, Inc.Listing unverified	Nov 24, 2025	Sell	-788	40.50 USD	$31.9K		SEC
Sionna Therapeutics, Inc.Listing unverified	Nov 24, 2025	Sell	-947	39.89 USD	$37.8K		SEC
Sionna Therapeutics, Inc.Listing unverified	Nov 24, 2025	Sell	-7,609	39.50 USD	$300.6K		SEC
Sionna Therapeutics, Inc.Listing unverified	Nov 24, 2025	Sell	-6,440	39.50 USD	$254.4K		SEC
Sionna Therapeutics, Inc.Listing unverified	Nov 24, 2025	Sell	-1,210	39.50 USD	$47.8K		SEC
Sionna Therapeutics, Inc.Listing unverified	Nov 24, 2025	Sell	-9,924	39.50 USD	$392K		SEC
Sionna Therapeutics, Inc.Listing unverified	Nov 24, 2025	Sell	-801	39.89 USD	$32K		SEC
Sionna Therapeutics, Inc.Listing unverified	Nov 24, 2025	Sell	-1,235	39.89 USD	$49.3K		SEC
Sionna Therapeutics, Inc.Listing unverified	Nov 24, 2025	Sell	-604	40.50 USD	$24.5K		SEC
Sionna Therapeutics, Inc.Listing unverified	Nov 24, 2025	Sell	-150	39.89 USD	$6K		SEC
Sionna Therapeutics, Inc.Listing unverified	Nov 24, 2025	Sell	-96	40.50 USD	$3.9K		SEC
Sionna Therapeutics, Inc.Listing unverified	Nov 24, 2025	Sell	-512	40.50 USD	$20.7K		SEC
Vor Biopharma Inc.Listing on record	Oct 30, 2025	Sell	-87,828	27.10 USD	$2.4M		SEC
Vor Biopharma Inc.Listing on record	Oct 30, 2025	Sell	-251,518	25.22 USD	$6.3M		SEC
Vor Biopharma Inc.Listing on record	Oct 30, 2025	Sell	-24,579	25.12 USD	$617.4K		SEC
Vor Biopharma Inc.Listing on record	Oct 30, 2025	Sell	-36,483	28.18 USD	$1M		SEC
Vor Biopharma Inc.Listing on record	Sep 10, 2025	AwardD (derivative)	60,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Cidara Therapeutics, Inc.Listing unverified	Jun 30, 2025	Buy	2,272,727	44.00 USD	$100M	conv 67Unusual size	SEC
ARS Pharmaceuticals, Inc.Listing on record	Jun 27, 2025	AwardD (derivative)	30,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Cidara Therapeutics, Inc.Listing unverified	Jun 18, 2025	AwardD (derivative)	5,079	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Sionna Therapeutics, Inc.Listing unverified	Jun 16, 2025	AwardD (derivative)	19,959	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
Climb Bio, Inc.Listing on record	Dec 15, 2025	Buy	213,099	2.18 USD	$464.6K	conv 20	SEC
Climb Bio, Inc.Listing on record	Dec 15, 2025	Other	-20,440,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Climb Bio, Inc.Listing on record	Dec 15, 2025	AwardD (derivative)	20,440,000	—	n/a (No price was disclosed in the filing)		SEC
Climb Bio, Inc.Listing on record	Dec 15, 2025	Buy	101,462	2.86 USD	$290.2K	conv 18	SEC
Sionna Therapeutics, Inc.Listing unverified	Nov 24, 2025	Sell	-788	40.50 USD	$31.9K		SEC
Sionna Therapeutics, Inc.Listing unverified	Nov 24, 2025	Sell	-947	39.89 USD	$37.8K		SEC
Sionna Therapeutics, Inc.Listing unverified	Nov 24, 2025	Sell	-7,609	39.50 USD	$300.6K		SEC
Sionna Therapeutics, Inc.Listing unverified	Nov 24, 2025	Sell	-6,440	39.50 USD	$254.4K		SEC
Sionna Therapeutics, Inc.Listing unverified	Nov 24, 2025	Sell	-1,210	39.50 USD	$47.8K		SEC
Sionna Therapeutics, Inc.Listing unverified	Nov 24, 2025	Sell	-9,924	39.50 USD	$392K		SEC
Sionna Therapeutics, Inc.Listing unverified	Nov 24, 2025	Sell	-801	39.89 USD	$32K		SEC
Sionna Therapeutics, Inc.Listing unverified	Nov 24, 2025	Sell	-1,235	39.89 USD	$49.3K		SEC
Sionna Therapeutics, Inc.Listing unverified	Nov 24, 2025	Sell	-604	40.50 USD	$24.5K		SEC
Sionna Therapeutics, Inc.Listing unverified	Nov 24, 2025	Sell	-150	39.89 USD	$6K		SEC
Sionna Therapeutics, Inc.Listing unverified	Nov 24, 2025	Sell	-96	40.50 USD	$3.9K		SEC
Sionna Therapeutics, Inc.Listing unverified	Nov 24, 2025	Sell	-512	40.50 USD	$20.7K		SEC
Vor Biopharma Inc.Listing on record	Oct 30, 2025	Sell	-87,828	27.10 USD	$2.4M		SEC
Vor Biopharma Inc.Listing on record	Oct 30, 2025	Sell	-251,518	25.22 USD	$6.3M		SEC
Vor Biopharma Inc.Listing on record	Oct 30, 2025	Sell	-24,579	25.12 USD	$617.4K		SEC
Vor Biopharma Inc.Listing on record	Oct 30, 2025	Sell	-36,483	28.18 USD	$1M		SEC
Vor Biopharma Inc.Listing on record	Sep 10, 2025	AwardD (derivative)	60,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Cidara Therapeutics, Inc.Listing unverified	Jun 30, 2025	Buy	2,272,727	44.00 USD	$100M	conv 67Unusual size	SEC
ARS Pharmaceuticals, Inc.Listing on record	Jun 27, 2025	AwardD (derivative)	30,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Cidara Therapeutics, Inc.Listing unverified	Jun 18, 2025	AwardD (derivative)	5,079	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Sionna Therapeutics, Inc.Listing unverified	Jun 16, 2025	AwardD (derivative)	19,959	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC