RA Capital Biotech Fund LP

Former 10% Owner at STERLING FINANCIAL CORP /WA/ · 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 LOT78, 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
10% owner at ARS Pharmaceuticals, Inc. · on record since Jun 24, 2024
Former 10% Owner at iTeos Therapeutics, Inc. · on record since May 14, 2024
10% owner at Bicara Therapeutics Inc. · on record since Sep 18, 2024
10% owner at ARADIGM CORP · on record since Feb 5, 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 · 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 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 May 6, 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
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
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
Director at · on record since Jul 28, 2021
10% owner at · on record since Jul 28, 2021
Fmr 10% Owner See Footnote (2) at · on record since May 24, 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 Apr 5, 2021
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
Director at · on record since Jul 2, 2018
10% owner at · on record since Oct 25, 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 Apr 15, 2019
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
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
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 Dec 2, 2020
Director at · on record since Feb 11, 2021
Director at · on record since Jun 30, 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 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
Director at · on record since Jun 9, 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 Feb 11, 2026
10% owner at · on record since Mar 31, 2022
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 RA Capital Biotech Fund LP

Transactions on record: 302; since Sep 13, 2007

Open-market buys: 94; $362.5M

Open-market sells: 104; $183.6M

Companies traded: 39; last filing Feb 20, 2026

Figures computed from official regulatory filings — .

Companies where RA Capital Biotech Fund LP has traded

2 tx · Feb 20, 2026
1 tx · $1M · Feb 17, 2026
10 tx · $59M · Feb 11, 2026
10 tx · $2.5B · Jan 9, 2026
3 tx · $24.9K · Jan 7, 2026
5 tx · $59.7M · Dec 10, 2025
1 tx · $30M · Sep 30, 2025
5 tx · $35.6M · Aug 13, 2025
1 tx · Jun 20, 2025
7 tx · $90.3M · Jun 13, 2025
1 tx · Jun 11, 2025
3 tx · $21.7M · Jun 11, 2025
3 tx · Jun 9, 2025
3 tx · Jun 5, 2025

Track record of RA Capital Biotech Fund LP

Statistical track record

Free account

Open-market buys: 103

Last buy: Feb 9, 2026

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

Transaction history of RA Capital Biotech Fund LP

Co-insiders of RA Capital Biotech Fund LP

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
Mineralys Therapeutics, Inc.Listing on record	Feb 20, 2026	Award	6,200	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Mineralys Therapeutics, Inc.Listing on record	Feb 20, 2026	AwardD (derivative)	8,300	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Evommune, Inc.Listing unverified	Feb 17, 2026	Award	35,868	27.88 USD	$1M		SEC
SpyGlass Pharma, Inc.Listing unverified	Feb 11, 2026	OtherD (derivative)	-272,056	—	n/a (No price was disclosed in the filing)		SEC
SpyGlass Pharma, Inc.Listing unverified	Feb 11, 2026	OtherD (derivative)	-767,294	—	n/a (No price was disclosed in the filing)		SEC
SpyGlass Pharma, Inc.Listing unverified	Feb 11, 2026	Buy	248,034	16.00 USD	$4M	conv 38Cluster	SEC
SpyGlass Pharma, Inc.Listing unverified	Feb 11, 2026	OtherD (derivative)	-767,294	—	n/a (No price was disclosed in the filing)		SEC
SpyGlass Pharma, Inc.Listing unverified	Feb 11, 2026	Other	1,806,644	—	n/a (No price was disclosed in the filing)		SEC
SpyGlass Pharma, Inc.Listing unverified	Feb 11, 2026	OtherD (derivative)	-1,150,941	—	n/a (No price was disclosed in the filing)		SEC
SpyGlass Pharma, Inc.Listing unverified	Feb 11, 2026	OtherD (derivative)	-1,150,941	—	n/a (No price was disclosed in the filing)		SEC
SpyGlass Pharma, Inc.Listing unverified	Feb 11, 2026	Buy	3,441,966	16.00 USD	$55.1M	conv 75ClusterUnusual size	SEC
SpyGlass Pharma, Inc.Listing unverified	Feb 11, 2026	OtherD (derivative)	-222,591	—	n/a (No price was disclosed in the filing)		SEC
SpyGlass Pharma, Inc.Listing unverified	Feb 11, 2026	Other	2,524,473	—	n/a (No price was disclosed in the filing)		SEC
Cidara Therapeutics, Inc.Listing unverified	Jan 9, 2026	Other	-4,652,309	221.50 USD	$1B	Unusual size	SEC
Cidara Therapeutics, Inc.Listing unverified	Jan 9, 2026	ExerciseD (derivative)	-1,286,786	—	n/a (No price was disclosed in the filing)		SEC
Cidara Therapeutics, Inc.Listing unverified	Jan 9, 2026	Exercise	1,286,786	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Cidara Therapeutics, Inc.Listing unverified	Jan 9, 2026	OtherD (derivative)	-22,200	—	n/a (No price was disclosed in the filing)		SEC
Cidara Therapeutics, Inc.Listing unverified	Jan 9, 2026	OtherD (derivative)	-5,079	—	n/a (No price was disclosed in the filing)		SEC
Cidara Therapeutics, Inc.Listing unverified	Jan 9, 2026	OtherD (derivative)	-89,956	15,505.00 USD	$1.4B	Unusual size	SEC
Climb Bio, Inc.Listing on record	Jan 7, 2026	Buy	7,111	3.50 USD	$24.9K	conv 18	SEC
Fulcrum Therapeutics, Inc.Listing on record	Dec 10, 2025	Sell	-91,722	14.98 USD	$1.4M		SEC
Fulcrum Therapeutics, Inc.Listing on record	Dec 10, 2025	Sell	-1,377,020	13.33 USD	$18.4M	Unusual size	SEC
Fulcrum Therapeutics, Inc.Listing on record	Dec 10, 2025	Sell	-2,706,397	14.28 USD	$38.6M	Unusual size	SEC
PepGen Inc.Listing on record	Sep 30, 2025	Buy	9,375,000	3.20 USD	$30M	conv 51	SEC
Wave Life Sciences, Inc.Listing on record	Aug 13, 2025	AwardD (derivative)	76,200	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
Mineralys Therapeutics, Inc.Listing on record	Feb 20, 2026	Award	6,200	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Mineralys Therapeutics, Inc.Listing on record	Feb 20, 2026	AwardD (derivative)	8,300	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Evommune, Inc.Listing unverified	Feb 17, 2026	Award	35,868	27.88 USD	$1M		SEC
SpyGlass Pharma, Inc.Listing unverified	Feb 11, 2026	OtherD (derivative)	-272,056	—	n/a (No price was disclosed in the filing)		SEC
SpyGlass Pharma, Inc.Listing unverified	Feb 11, 2026	OtherD (derivative)	-767,294	—	n/a (No price was disclosed in the filing)		SEC
SpyGlass Pharma, Inc.Listing unverified	Feb 11, 2026	Buy	248,034	16.00 USD	$4M	conv 38Cluster	SEC
SpyGlass Pharma, Inc.Listing unverified	Feb 11, 2026	OtherD (derivative)	-767,294	—	n/a (No price was disclosed in the filing)		SEC
SpyGlass Pharma, Inc.Listing unverified	Feb 11, 2026	Other	1,806,644	—	n/a (No price was disclosed in the filing)		SEC
SpyGlass Pharma, Inc.Listing unverified	Feb 11, 2026	OtherD (derivative)	-1,150,941	—	n/a (No price was disclosed in the filing)		SEC
SpyGlass Pharma, Inc.Listing unverified	Feb 11, 2026	OtherD (derivative)	-1,150,941	—	n/a (No price was disclosed in the filing)		SEC
SpyGlass Pharma, Inc.Listing unverified	Feb 11, 2026	Buy	3,441,966	16.00 USD	$55.1M	conv 75ClusterUnusual size	SEC
SpyGlass Pharma, Inc.Listing unverified	Feb 11, 2026	OtherD (derivative)	-222,591	—	n/a (No price was disclosed in the filing)		SEC
SpyGlass Pharma, Inc.Listing unverified	Feb 11, 2026	Other	2,524,473	—	n/a (No price was disclosed in the filing)		SEC
Cidara Therapeutics, Inc.Listing unverified	Jan 9, 2026	Other	-4,652,309	221.50 USD	$1B	Unusual size	SEC
Cidara Therapeutics, Inc.Listing unverified	Jan 9, 2026	ExerciseD (derivative)	-1,286,786	—	n/a (No price was disclosed in the filing)		SEC
Cidara Therapeutics, Inc.Listing unverified	Jan 9, 2026	Exercise	1,286,786	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Cidara Therapeutics, Inc.Listing unverified	Jan 9, 2026	OtherD (derivative)	-22,200	—	n/a (No price was disclosed in the filing)		SEC
Cidara Therapeutics, Inc.Listing unverified	Jan 9, 2026	OtherD (derivative)	-5,079	—	n/a (No price was disclosed in the filing)		SEC
Cidara Therapeutics, Inc.Listing unverified	Jan 9, 2026	OtherD (derivative)	-89,956	15,505.00 USD	$1.4B	Unusual size	SEC
Climb Bio, Inc.Listing on record	Jan 7, 2026	Buy	7,111	3.50 USD	$24.9K	conv 18	SEC
Fulcrum Therapeutics, Inc.Listing on record	Dec 10, 2025	Sell	-91,722	14.98 USD	$1.4M		SEC
Fulcrum Therapeutics, Inc.Listing on record	Dec 10, 2025	Sell	-1,377,020	13.33 USD	$18.4M	Unusual size	SEC
Fulcrum Therapeutics, Inc.Listing on record	Dec 10, 2025	Sell	-2,706,397	14.28 USD	$38.6M	Unusual size	SEC
PepGen Inc.Listing on record	Sep 30, 2025	Buy	9,375,000	3.20 USD	$30M	conv 51	SEC
Wave Life Sciences, Inc.Listing on record	Aug 13, 2025	AwardD (derivative)	76,200	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC