MacBeath Gavin

Director at TScan Therapeutics, Inc. · on record since Jun 15, 2023
Chief Executive Officer at TScan Therapeutics, Inc. · on record since Sep 22, 2021
Chief Scientific Officer at ABRAXAS PETROLEUM CORP · on record since May 10, 2018

Insider trading activity of MacBeath Gavin

Transactions on record: 10; since Sep 22, 2021

Open-market buys: 2; $31.1K

Open-market sells: 0

Companies traded: 1; last filing Oct 2, 2026

Figures computed from official regulatory filings — .

Companies where MacBeath Gavin has traded

TScan Therapeutics, Inc.10 tx · $31.1K · Oct 2, 2026

Track record of MacBeath Gavin

Insufficient history for a statistical track record (fewer than 5 open-market buys).

Transaction history of MacBeath Gavin

Co-insiders of MacBeath Gavin

667, L.P.TScan Therapeutics, Inc.
Abpro Bio International, Inc.ABRAXAS PETROLEUM CORP
AG Energy Funding, LLCABRAXAS PETROLEUM CORP
AG PARTNERS LPABRAXAS PETROLEUM CORP
Amello JasonTScan Therapeutics, Inc.
ANGELO GORDON & CO LP/NYABRAXAS PETROLEUM CORP
Baddeloo DanielABRAXAS PETROLEUM CORP
Baker Bros. Advisors (GP) LLCTScan Therapeutics, Inc.
BAKER BROS. ADVISORS LPTScan Therapeutics, Inc.
Baker Brothers Life Sciences LPTScan Therapeutics, Inc.
BAKER FELIXTScan Therapeutics, Inc.
BAKER JULIANTScan Therapeutics, Inc.
BARBERICH TIMOTHY JTScan Therapeutics, Inc.
BARTLETT SCOTT JRABRAXAS PETROLEUM CORP
Barton DeboraTScan Therapeutics, Inc.
Baumgarten JoshuaABRAXAS PETROLEUM CORP
Biggar Stephen RTScan Therapeutics, Inc.
BIGLARI HOLDINGS INC.ABRAXAS PETROLEUM CORP
BIGLARI, SARDARABRAXAS PETROLEUM CORP
BILLINGSLEY LEE TABRAXAS PETROLEUM CORP
Bommer Peter A.ABRAXAS PETROLEUM CORP
BURKE FRANKLIN AABRAXAS PETROLEUM CORP
CARINGTON ROBERT WABRAXAS PETROLEUM CORP
CARTER HAROLD DABRAXAS PETROLEUM CORP
Chan Eugene Y.ABRAXAS PETROLEUM CORP
Chan IanABRAXAS PETROLEUM CORP

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
TScan Therapeutics, Inc.Listing on record	Oct 2, 2026	Award	1,000,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TScan Therapeutics, Inc.Listing on record	Jan 22, 2026	AwardD (derivative)	1,165,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TScan Therapeutics, Inc.Listing on record	Feb 11, 2025	AwardD (derivative)	160,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TScan Therapeutics, Inc.Listing on record	Feb 11, 2025	AwardD (derivative)	800,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TScan Therapeutics, Inc.Listing on record	Jun 15, 2023	AwardD (derivative)	1,121,300	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TScan Therapeutics, Inc.Listing on record	Feb 6, 2023	AwardD (derivative)	40,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TScan Therapeutics, Inc.Listing on record	Jul 27, 2022	AwardD (derivative)	100,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TScan Therapeutics, Inc.Listing on record	Jan 20, 2022	AwardD (derivative)	140,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TScan Therapeutics, Inc.Listing on record	Sep 22, 2021	Buy	4,943	6.22 USD	$30.7K	conv 61ClusterFirst in 12mo	SEC
TScan Therapeutics, Inc.Listing on record	Sep 22, 2021	Buy	57	6.19 USD	$352.8	conv 48Cluster	SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
TScan Therapeutics, Inc.Listing on record	Oct 2, 2026	Award	1,000,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TScan Therapeutics, Inc.Listing on record	Jan 22, 2026	AwardD (derivative)	1,165,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TScan Therapeutics, Inc.Listing on record	Feb 11, 2025	AwardD (derivative)	160,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TScan Therapeutics, Inc.Listing on record	Feb 11, 2025	AwardD (derivative)	800,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TScan Therapeutics, Inc.Listing on record	Jun 15, 2023	AwardD (derivative)	1,121,300	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TScan Therapeutics, Inc.Listing on record	Feb 6, 2023	AwardD (derivative)	40,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TScan Therapeutics, Inc.Listing on record	Jul 27, 2022	AwardD (derivative)	100,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TScan Therapeutics, Inc.Listing on record	Jan 20, 2022	AwardD (derivative)	140,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TScan Therapeutics, Inc.Listing on record	Sep 22, 2021	Buy	4,943	6.22 USD	$30.7K	conv 61ClusterFirst in 12mo	SEC
TScan Therapeutics, Inc.Listing on record	Sep 22, 2021	Buy	57	6.19 USD	$352.8	conv 48Cluster	SEC