Who owns TScan Therapeutics, Inc. (TCRX)
Which tracked institutional funds hold TCRX, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See TCRX company fundamentals →
Ownership as of the 2026-Q1 13F filings. 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on TCRX is one-sided between 2025-Q4 and 2026-Q1: 6 added or opened and 2 trimmed or exited — on balance accumulating.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
TCRX’s largest tracked holder by dollar value, Lynx1 Capital Management LP, sizes it at 1.3% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 1.3pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in TCRX divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q4 and 2026-Q1, across 60 tracked filers holding TCRX, 26 increased or opened the position and 32 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in TCRX between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 1
- VANGUARD CAPITAL MANAGEMENT LLC$2M
Full exits 1
- VANGUARD GROUP INC$2M
Largest adds
- MILLENNIUM MANAGEMENT LLC$1M
- JACOBS LEVY EQUITY MANAGEMENT, INC$628K
- TWO SIGMA INVESTMENTS, LP$570K
- BVF INC/IL$394K
- D. E. Shaw & Co., Inc.$253K
Largest trims
- Aberdeen Group plc$858K
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| Lynx1 Capital Management LP | 8,019,148 | $8M | 15.2% | 2026-Q1 |
| BVF INC/IL added | 5,564,290 | $6M | 10.5% | 2026-Q1 |
| BAKER BROS. ADVISORS LP | 2,784,792 | $3M | 5.3% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 2,154,256 | $2M | 4.1% | 2026-Q1 |
| BlackRock, Inc. trimmed | 1,840,952 | $2M | 3.5% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 1,460,285 | $1M | 2.8% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC added | 1,364,783 | $1M | 2.6% | 2026-Q1 |
| Deer Management Co. LLC | 1,245,504 | $1M | 2.4% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 1,209,009 | $1M | 2.3% | 2026-Q1 |
| Aberdeen Group plc trimmed | 918,020 | $927K | 1.7% | 2026-Q1 |
| JACOBS LEVY EQUITY MANAGEMENT, INC added | 808,356 | $816K | 1.5% | 2026-Q1 |
| DC Funds, LP | 630,000 | $630K | 1.2% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 616,952 | $623K | 1.2% | 2026-Q1 |
| GSA CAPITAL PARTNERS LLP added | 378,960 | $383K | 0.7% | 2026-Q1 |
| D. E. Shaw & Co., Inc. added | 319,587 | $323K | 0.6% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 318,411 | $322K | 0.6% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 305,772 | $309K | 0.6% | 2026-Q1 |
| MARSHALL WACE, LLP trimmed | 237,346 | $240K | 0.4% | 2026-Q1 |
| STATE STREET CORP | 207,313 | $209K | 0.4% | 2026-Q1 |
| ACADIAN ASSET MANAGEMENT LLC added | 201,987 | $201K | 0.4% | 2026-Q1 |
| MORGAN STANLEY trimmed | 173,643 | $175K | 0.3% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 157,228 | $159K | 0.3% | 2026-Q1 |
| JANE STREET GROUP, LLC trimmed | 144,421 | $146K | 0.3% | 2026-Q1 |
| BROWN BROTHERS HARRIMAN & CO | 143,051 | $144K | 0.3% | 2026-Q1 |
| Verdad Advisers, LP new | 134,001 | $135K | 0.3% | 2026-Q1 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC trimmed | 111,900 | $113K | 0.2% | 2026-Q1 |
| NORTHERN TRUST CORP trimmed | 97,448 | $98K | 0.2% | 2026-Q1 |
| LETKO, BROSSEAU & ASSOCIATES INC | 95,875 | $97K | 0.2% | 2026-Q1 |
| NewEdge Wealth, LLC | 91,463 | $92K | 0.2% | 2026-Q1 |
| STIFEL FINANCIAL CORP trimmed | 69,400 | $70K | 0.1% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 65,335 | $66K | 0.1% | 2026-Q1 |
| Kestra Advisory Services, LLC new | 62,525 | $63K | 0.1% | 2026-Q1 |
| XTX Topco Ltd trimmed | 60,720 | $61K | 0.1% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 57,529 | $58K | 0.1% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC new | 52,635 | $53K | 0.1% | 2026-Q1 |
| NINE MASTS CAPITAL Ltd new | 41,740 | $42K | 0.1% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 37,267 | $38K | 0.1% | 2026-Q1 |
| DC Investments Management, LLC | 35,563 | $36K | 0.1% | 2026-Q1 |
| UBS Group AG trimmed | 32,484 | $33K | 0.1% | 2026-Q1 |
| PRUDENTIAL FINANCIAL INC added | 29,800 | $30K | 0.1% | 2026-Q1 |
| PANAGORA ASSET MANAGEMENT INC added | 28,797 | $29K | 0.1% | 2026-Q1 |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO new | 27,700 | $28K | 0.1% | 2026-Q1 |
| HSBC HOLDINGS PLC | 24,574 | $24K | 0.0% | 2026-Q1 |
| LPL Financial LLC | 22,500 | $23K | 0.0% | 2026-Q1 |
| Vanguard Personalized Indexing Management, LLC added | 21,359 | $22K | 0.0% | 2026-Q1 |
| Virtu Financial LLC trimmed | 18,140 | $18K | 0.0% | 2026-Q1 |
| BARCLAYS PLC trimmed | 17,080 | $17K | 0.0% | 2026-Q1 |
| Vanguard Global Advisers, LLC new | 15,705 | $16K | 0.0% | 2026-Q1 |
| JPMORGAN CHASE & CO trimmed | 16,436 | $15K | 0.0% | 2026-Q1 |
| Aries Wealth Management | 10,000 | $10K | 0.0% | 2026-Q1 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 3,500,000 | $5M | 9.1% | 2025-Q1 stale |
| Propel Bio Management, LLC trimmed | 1,932,304 | $4M | 6.6% | 2025-Q3 stale |
| Checkpoint Capital L.P. added | 2,017,650 | $3M | 5.2% | 2025-Q1 stale |
| VANGUARD GROUP INC added | 2,475,733 | $2M | 4.6% | 2025-Q4 stale |
| Alphabet Inc. | 1,077,080 | $2M | 3.7% | 2025-Q3 stale |
| Simplify Asset Management Inc. trimmed | 904,972 | $2M | 3.1% | 2025-Q3 stale |
| EcoR1 Capital, LLC trimmed | 662,833 | $915K | 1.7% | 2025-Q1 stale |
| TWO SIGMA ADVISERS, LP added | 353,900 | $354K | 0.7% | 2025-Q4 stale |
| Troluce Capital Advisors LLC added | 150,000 | $218K | 0.4% | 2025-Q2 stale |
| Militia Capital Partners, LP added | 102,100 | $186K | 0.3% | 2025-Q3 stale |
| Bank of New York Mellon Corp trimmed | 88,142 | $122K | 0.2% | 2025-Q1 stale |
| Y-Intercept (Hong Kong) Ltd added | 76,660 | $111K | 0.2% | 2025-Q2 stale |
| Quadrature Capital Ltd added | 56,666 | $103K | 0.2% | 2025-Q3 stale |
| Nuveen, LLC new | 69,962 | $97K | 0.2% | 2025-Q1 stale |
| Voleon Capital Management LP new | 47,879 | $87K | 0.2% | 2025-Q3 stale |
| Cubist Systematic Strategies, LLC trimmed | 42,078 | $77K | 0.1% | 2025-Q3 stale |
| DEUTSCHE BANK AG\ added | 52,559 | $73K | 0.1% | 2025-Q1 stale |
| RHUMBLINE ADVISERS added | 50,019 | $69K | 0.1% | 2025-Q1 stale |
| Pale Fire Capital SE added | 47,734 | $66K | 0.1% | 2025-Q1 stale |
| Catalyst Funds Management Pty Ltd added | 30,763 | $56K | 0.1% | 2025-Q3 stale |
| Jain Global LLC new | 37,888 | $55K | 0.1% | 2025-Q2 stale |
| ALGERT GLOBAL LLC | 28,030 | $51K | 0.1% | 2025-Q3 stale |
| Qube Research & Technologies Ltd trimmed | 27,675 | $50K | 0.1% | 2025-Q3 stale |
| INTECH INVESTMENT MANAGEMENT LLC added | 33,683 | $46K | 0.1% | 2025-Q1 stale |
| TANG CAPITAL MANAGEMENT LLC trimmed | 46,131 | $46K | 0.1% | 2025-Q4 stale |
| TOCQUEVILLE ASSET MANAGEMENT L.P. trimmed | 27,000 | $37K | 0.1% | 2025-Q1 stale |
| BOOTHBAY FUND MANAGEMENT, LLC added | 24,363 | $35K | 0.1% | 2025-Q2 stale |
| BANK OF MONTREAL /CAN/ trimmed | 24,992 | $34K | 0.1% | 2025-Q1 stale |
| Squarepoint Ops LLC added | 22,497 | $33K | 0.1% | 2025-Q2 stale |
| AQR CAPITAL MANAGEMENT LLC added | 22,438 | $33K | 0.1% | 2025-Q2 stale |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 22,171 | $32K | 0.1% | 2025-Q2 stale |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added | 23,238 | $32K | 0.1% | 2025-Q1 stale |
| Mariner, LLC trimmed | 16,031 | $29K | 0.1% | 2025-Q3 stale |
| Invesco Ltd. trimmed | 20,590 | $28K | 0.1% | 2025-Q1 stale |
| Point72 Asia (Singapore) Pte. Ltd. trimmed | 14,535 | $26K | 0.0% | 2025-Q3 stale |
| Corebridge Financial, Inc. trimmed | 19,031 | $26K | 0.0% | 2025-Q1 stale |
| HRT FINANCIAL LP trimmed | 26,581 | $26K | 0.0% | 2025-Q4 stale |
| PRICE T ROWE ASSOCIATES INC /MD/ | 15,479 | $22K | 0.0% | 2025-Q1 stale |
| Dynamic Technology Lab Private Ltd new | 13,878 | $20K | 0.0% | 2025-Q2 stale |
| SG Americas Securities, LLC trimmed | 13,581 | $19K | 0.0% | 2025-Q1 stale |
| NEUBERGER BERMAN GROUP LLC | 18,400 | $18K | 0.0% | 2025-Q4 stale |
| China Universal Asset Management Co., Ltd. trimmed | 9,197 | $17K | 0.0% | 2025-Q3 stale |
| R Squared Ltd trimmed | 16,033 | $16K | 0.0% | 2025-Q4 stale |
| TWO SIGMA SECURITIES, LLC new | 15,942 | $16K | 0.0% | 2025-Q4 stale |
| DRW Securities, LLC new | 10,132 | $15K | 0.0% | 2025-Q2 stale |
| ProShare Advisors LLC trimmed | 10,626 | $15K | 0.0% | 2025-Q1 stale |
| Point72 Asset Management, L.P. new | 14,512 | $15K | 0.0% | 2025-Q4 stale |
| Police & Firemen's Retirement System of New Jersey | 7,720 | $11K | 0.0% | 2025-Q1 stale |
| MIZUHO SECURITIES USA LLC new | 10,000 | $10K | 0.0% | 2025-Q4 stale |
| Waldron Private Wealth LLC | 10,000 | $10K | 0.0% | 2025-Q4 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.