Ranked by reported Q2 2026 13F market value
Share of total reported institutional value in TCRX held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | Lynx1 Capital Management LP | 8.0M | $7.9M | 0.0% | 6.171% | 0.57% |
| 2 | BVF INC/IL | 5.6M | $5.5M | 0.0% | 4.282% | 0.14% |
| 3 | BAKER BROS. ADVISORS LP | 2.8M | $2.7M | 0.0% | 2.143% | 0.01% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 2.2M | $2.1M | +0.2% | 1.661% | 0.00% |
| 5 | TWO SIGMA INVESTMENTS, LP | 1.9M | $1.9M | +61.3% | 1.500% | 0.00% |
| 6 | RENAISSANCE TECHNOLOGIES LLC | 1.3M | $1.3M | -2.8% | 1.021% | 0.00% |
| 7 | Deer Management Co. LLC | 1.2M | $1.2M | 0.0% | 0.959% | 0.15% |
| 8 | MILLENNIUM MANAGEMENT LLC | 1.2M | $1.1M | -20.3% | 0.895% | 0.00% |
| 9 | JACOBS LEVY EQUITY MANAGEMENT, INC | 1.0M | $1.0M | +29.9% | 0.808% | 0.00% |
| 10 | CITADEL ADVISORS LLC | 1.0M | $989K | +216.9% | 0.776% | 0.00% |
| 11 | BlackRock, Inc. | 995K | $975K | -46.0% | 0.765% | 0.00% |
| 12 | BOOTHBAY FUND MANAGEMENT, LLC | 772K | $757K | β | 0.594% | 0.01% |
| 13 | MARSHALL WACE, LLP | 687K | $674K | +189.6% | 0.529% | 0.00% |
| 14 | DC Funds, LP | 630K | $617K | 0.0% | 0.485% | 49.27% |
| 15 | GEODE CAPITAL MANAGEMENT, LLC | 585K | $573K | -5.2% | 0.450% | 0.00% |
| 16 | D. E. Shaw & Co., Inc. | 548K | $537K | +71.6% | 0.422% | 0.00% |
| 17 | Kalehua Capital Management LLC | 455K | $446K | β | 0.350% | 0.14% |
| 18 | VANGUARD FIDUCIARY TRUST CO | 364K | $357K | +19.0% | 0.280% | 0.00% |
| 19 | JANE STREET GROUP, LLC | 241K | $237K | +67.2% | 0.186% | 0.00% |
| 20 | Verdad Advisers, LP | 233K | $228K | +73.7% | 0.179% | 0.22% |
| 21 | STATE STREET CORP | 207K | $203K | 0.0% | 0.160% | 0.00% |
| 22 | MIZUHO SECURITIES USA LLC | 206K | $202K | β | 0.158% | 0.00% |
| 23 | MORGAN STANLEY | 198K | $194K | +14.0% | 0.152% | 0.00% |
| 24 | XTX Topco Ltd | 149K | $146K | +146.2% | 0.115% | 0.00% |
| 25 | BROWN BROTHERS HARRIMAN & CO | 143K | $140K | 0.0% | 0.110% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in TCRX β a direct measure of their conviction.
Filings activity in TCRX during Q2 2026, grouped by how each filer changed its position.
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q2 2026 | 60 | +0.0% | 27.58% | +2.56 pp | $33M | +2.9% |
| Q1 2026 | 60 | +3.4% | 25.02% | +1.40 pp | $32M | +6.0% |
| Q4 2025 | 58 | 21% | 23.62% | 3.03 pp | $30M | 52% |
| Q3 2025 | 73 | 8.8% | 26.65% | 0.88 pp | $63M | +21% |
| Q2 2025 | 80 | 14% | 27.53% | 3.42 pp | $52M | 6.4% |
| Q1 2025 | 93 | +1.1% | 30.95% | 3.43 pp | $55M | 56% |
| Q4 2024 | 92 | +2.2% | 34.38% | 2.50 pp | $126M | 39% |
| Q3 2024 | 90 | β | 36.88% | β | $208M | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying TCRX stock.
Based on Q2 2026 13F filings, institutional ownership of TScan Therapeutics, Inc. stands at 27.6%, held across 60 reporting institutions.
Lynx1 Capital Management LP is the largest reported institutional holder of TCRX, with approximately 8,019,148 shares worth $0.01B as of Q2 2026.
Yes β 5 widely-followed marquee investors appear among the top 25 institutional holders of TCRX, including TWO SIGMA INVESTMENTS, LP, RENAISSANCE TECHNOLOGIES LLC, MILLENNIUM MANAGEMENT LLC, CITADEL ADVISORS LLC, JANE STREET GROUP, LLC.
Our composite Smart Money Score for TCRX is 75 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
5 institutions opened new positions in TCRX during Q2 2026, while 7 fully exited. 21 added to existing positions and 31 trimmed.
TCRX institutional ownership rose by 2.56 percentage points quarter-over-quarter, with a net change of +0 holders.
The top 10 institutions account for 77.7% of all reported 13F value in TCRX, and the top 25 account for 96.6%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
TScan Therapeutics, Inc. (TCRX) Institutional Ownership