Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in SNSE held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | Vivo Capital, LLC | 722K | $22.8M | β | 53.836% | 1.90% |
| 2 | Woodline Partners LP | 361K | $11.4M | β | 26.918% | 0.04% |
| 3 | Cormorant Asset Management, LP | 306K | $9.7M | β | 22.833% | 0.48% |
| 4 | MILLENNIUM MANAGEMENT LLC | 147K | $4.6M | β | 10.928% | 0.00% |
| 5 | FRANKLIN RESOURCES INC | 134K | $4.2M | β | 9.955% | 0.00% |
| 6 | STEMPOINT CAPITAL LP | 133K | $4.2M | β | 9.907% | 1.11% |
| 7 | Caligan Partners LP | 126K | $4.0M | β | 9.395% | 0.28% |
| 8 | Trails Edge Capital Partners, LP | 125K | $3.9M | β | 9.320% | 0.90% |
| 9 | MARSHALL WACE, LLP | 66K | $2.1M | β | 4.901% | 0.00% |
| 10 | GOLDMAN SACHS GROUP INC | 62K | $1.9M | β | 4.591% | 0.00% |
| 11 | SUVRETTA CAPITAL MANAGEMENT, LLC | 35K | $1.1M | β | 2.576% | 0.03% |
| 12 | BANK OF AMERICA CORP /DE/ | 33K | $1.0M | +10692.5% | 2.462% | 0.00% |
| 13 | RENAISSANCE TECHNOLOGIES LLC | 32K | $1.0M | +178.2% | 2.389% | 0.00% |
| 14 | Logos Global Management LP | 30K | $946K | β | 2.237% | 0.05% |
| 15 | BOOTHBAY FUND MANAGEMENT, LLC | 26K | $823K | β | 1.948% | 0.02% |
| 16 | Brevan Howard Capital Management LP | 20K | $641K | β | 1.516% | 0.01% |
| 17 | FRED ALGER MANAGEMENT, LLC | 18K | $578K | β | 1.367% | 0.00% |
| 18 | BALYASNY ASSET MANAGEMENT LLC | 16K | $511K | β | 1.208% | 0.00% |
| 19 | Catalio Capital Management, LP | 15K | $464K | 0.0% | 1.097% | 0.10% |
| 20 | GEODE CAPITAL MANAGEMENT, LLC | 10K | $300K | β | 0.708% | 0.00% |
| 21 | JANE STREET GROUP, LLC | 9K | $280K | β | 0.661% | 0.00% |
| 22 | MORGAN STANLEY | 9K | $277K | +87850.0% | 0.656% | 0.00% |
| 23 | VANGUARD CAPITAL MANAGEMENT LLC | 8K | $244K | β | 0.578% | 0.00% |
| 24 | Ikarian Capital, LLC | 6K | $200K | -70.3% | 0.474% | 0.02% |
| 25 | VANGUARD FIDUCIARY TRUST CO | 6K | $199K | β | 0.470% | 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 SNSE β a direct measure of their conviction.
Filings activity in SNSE during Q1 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 |
|---|---|---|---|---|---|---|
| Q1 2026 | 30 | +200% | 199.99% | +197.04 pp | $78M | +14960% |
| Q4 2025 | 10 | +11% | 2.95% | +0.28 pp | $1M | +10% |
| Q3 2025 | 9 | 25% | 2.67% | 0.81 pp | $0M | 23% |
| Q2 2025 | 12 | 43% | 3.48% | 0.88 pp | $1M | 20% |
| Q1 2025 | 21 | 13% | 4.36% | 2.21 pp | $1M | 34% |
| Q4 2024 | 24 | +20% | 6.57% | 1.00 pp | $1M | 13% |
| Q3 2024 | 20 | 20% | 7.57% | +0.09 pp | $1M | +1.2% |
| Q2 2024 | 25 | β | 7.48% | β | $1M | 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 SNSE stock.
Based on Q1 2026 13F filings, institutional ownership of Sensei Biotherapeutics, Inc. stands at 200.0%, held across 30 reporting institutions.
Vivo Capital, LLC is the largest reported institutional holder of SNSE, with approximately 722,020 shares worth $0.02B as of Q1 2026.
Yes β 3 widely-followed marquee investors appear among the top 25 institutional holders of SNSE, including MILLENNIUM MANAGEMENT LLC, RENAISSANCE TECHNOLOGIES LLC, JANE STREET GROUP, LLC.
Our composite Smart Money Score for SNSE is 83 out of 100 (Strong Smart Money). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
23 institutions opened new positions in SNSE during Q1 2026, while 3 fully exited. 6 added to existing positions and 1 trimmed.
SNSE institutional ownership rose by 197.04 percentage points quarter-over-quarter, with a net change of +20 holders.
The top 10 institutions account for 88.7% of all reported 13F value in SNSE, and the top 25 account for 99.8%.
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.
Sensei Biotherapeutics, Inc. (SNSE) Institutional Ownership