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Buy Day today: Good (62) Broad market participation · no major macro event
TCRX

Tscan Therapeutics Inc

Healthcare · Biotechnology

0.3335$ +0.8% vs. previous close Closing price · As of: Sep 17, 2026

Ownership

Ownership Structure

Who owns Tscan Therapeutics Inc (TCRX)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 91.0% of the shares are freely tradable; institutional investors hold 59.5%.

Institutional ownership ?Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings. 59.5%
Insiders ?Share of the stock held by the executives, founders and major shareholders of the company itself. 0.2%
Float ?Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders. 91.0%
Short % of float ?Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices. 3.7%
Shares Outstanding ?Total number of shares issued. Price times share count gives market cap. 64Mio.

Largest Shareholders

Institutions

Institutions TCRX
Name Stake (%) Shares Change (%) Date
Lynx1 Capital Management, LP 11.83 8,019,148 +0.0 06/30/2026
Bvf Inc 8.21 5,564,290 +6.5 03/31/2026
Baker Bros Advisors LP 4.11 2,784,792 +0.0 03/31/2026
Vanguard Capital Management, LLC 3.18 2,154,256 +0.0 03/31/2026
Two Sigma Investments LLC 2.88 1,949,604 +61.3 06/30/2026
BlackRock Inc 2.72 1,840,952 -0.4 03/31/2026
Renaissance Technologies Corp 2.01 1,364,783 +19.6 03/31/2026
Deer Management Co. LLC 1.84 1,245,504 +0.0 03/31/2026
Millennium Management LLC 1.72 1,163,611 -20.3 06/30/2026

Funds

Funds TCRX
Name Stake (%) Shares Change (%) Date
Vanguard MStar Total Stk Mkt Idx Invest 2.72 1,843,137 +22.8 07/31/2026

Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.

Data as of: September 17, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)

Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.

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