TScan Therapeutics Inc.

Last updated September 27, 2026

Organization details

Legal name
TScan Therapeutics Inc.
Ownership
Public
Status
Active
Sector (GICS)
Health Care
SIC code
2836 — Biological Products, (No Diagnostic Substances)
Jurisdiction of incorporation
Delaware
Headquarters city
Waltham
Headquarters state / province
Massachusetts
Headquarters country
United States
Fiscal year end
December
Ticker symbol
TCRX
Primary stock exchange
Nasdaq

Identifiers

SEC CIK
0001783328
EIN
82-5282075

Board of directors

Chief executives

David P. Southwell · Chief Executive Officer
Dates unknown
Gavin MacBeath · Chief Executive Officer
Dates unknown

Director election results

Annual meeting of May 20, 2026. Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.

Board connections

8 of this board's directors also sit on 23 other boards. 23 are in the same sector.

Network of TScan Therapeutics Inc.'s board connections Neurogene Inc. Neurogene Inc. Prelude Therapeutics Incorporated Prelude Therapeutics I... ACADIA Pharmaceuticals Inc. ACADIA Pharmaceuticals... BeOne Medicines Ltd. BeOne Medicines Ltd. Bicycle Therapeutics plc Bicycle Therapeutics p... DBV Technologies S.A. DBV Technologies S.A. Denali Therapeutics Inc. Denali Therapeutics In... Immunocore Holdings plc Immunocore Holdings pl... Incyte Corp. Incyte Corp. Kiniksa Pharmaceuticals International plc Kiniksa Pharmaceutical... Kodiak Sciences Inc Kodiak Sciences Inc Kymera Therapeutics Inc. Kymera Therapeutics In... Madrigal Pharmaceuticals Inc. Madrigal Pharmaceutica... Replimune Group Inc. Replimune Group Inc. Rocket Pharmaceuticals Inc. Rocket Pharmaceuticals... vTv Therapeutics Inc. vTv Therapeutics Inc. David P. Southwell David P. Southwell Felix Baker Felix Baker Julian Baker Julian Baker Katina Dorton Katina Dorton Keith Woods Keith Woods TScan Therapeutics Inc.
Shared director Other board Same sector +7 more in the list below

Insider trades

All notable trades →

From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.

Bought, last 12 months
$145,621
3 purchases by 1 insider
Sold, last 12 months
$0
0 sales by 0 insiders
Date Insider Transaction Shares Price Value
Oct 1, 2026 Gavin MacBeath Director, Officer (Chief Executive Officer) Grant or award +1,000,000 — —
Oct 1, 2026 ZDRAVESKI ZORAN Officer (See Remarks) Grant or award +300,000 — —
Dec 23, 2025 Lynx1 Capital Management LP 10% owner Open-market purchase +6,232 $0.90 $5,609
Dec 22, 2025 Lynx1 Capital Management LP 10% owner Open-market purchase +75,500 $0.90 $67,950
Dec 19, 2025 Lynx1 Capital Management LP 10% owner Open-market purchase +80,069 $0.90 $72,062
May 20, 2025 Lynx1 Capital Management LP 10% owner Open-market purchase +1,200,000 $1.20 $1,440,000
May 19, 2025 Lynx1 Capital Management LP 10% owner Open-market purchase +1,388,794 $1.20 $1,666,553
Dec 13, 2024 Nichols Weston 10% owner Open-market purchase +100,000 $2.90 $290,000
Dec 12, 2024 Nichols Weston 10% owner Open-market purchase +31,800 $3.01 $95,718
Nov 15, 2024 Nichols Weston 10% owner Open-market purchase +947 $4.34 $4,110
Sep 23, 2024 Barbara Klencke Director Open-market purchase +5,000 $5.29 $26,450
Aug 26, 2024 Barbara Klencke Director Open-market purchase +5,000 $5.53 $27,650
Aug 23, 2024 Barbara Klencke Director Open-market purchase +5,000 $5.69 $28,450
Aug 23, 2024 ZDRAVESKI ZORAN Officer (See Remarks) Option exercise +54,895 $4.85 $266,241
Aug 23, 2024 ZDRAVESKI ZORAN Officer (See Remarks) Option exercise +25,000 $3.27 $81,750

Organizations in the same sector, closest in location and size first.

Questions about TScan Therapeutics Inc.

Who is the CEO of TScan Therapeutics Inc.?

David P. Southwell is TScan Therapeutics Inc.'s Chief Executive Officer.

How many directors are on TScan Therapeutics Inc.'s board?

TScan Therapeutics Inc.'s board has 10 directors: Barbara Klencke, David P. Southwell, Felix Baker, Gabriela Gruia, Garry A. Nicholson, Gavin MacBeath, Julian Baker, Katina Dorton, Keith Woods and Timothy J. Barberich.

Are TScan Therapeutics Inc. insiders buying or selling shares?

Over the last 12 months, TScan Therapeutics Inc. insiders bought $145,621 of shares in 3 purchases and made no open-market sales on the open market, as reported to the SEC on Forms 4 and 5.

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