SNSE — SENSEI BIOTHERAPEUTICS INC
Reported value held$54.64M
Funds holding (latest)26
Sector—
Funds holding (Q2 2026)10
Institutional value$45.82M · 1.83M sh
New / Add / Cut / Exit3 / 6 / 1 / 3
Top-5 / Top-10 concentration97.4% / 100.0%
Institutional holdings change
Accumulating +258.4%
(+1.32M sh)
Institutional value change
Up +184.2%
As of Q2 2026, 10 SEC-registered investment managers reported holding SNSE (SENSEI BIOTHERAPEUTICS INC) in their latest 13F filings, with a combined reported value of $45.82M across 1.83M shares. That is +258.4% by share count (+1.32M shares) versus the previous quarter, while reported value moved +184.2%. Ownership is concentrated: the five largest holders account for 97.4% of reported value and the top ten for 100.0%.
Compared with the prior quarter, 3 opened new positions, 6 added to existing stakes, 1 trimmed, 3 exited entirely. 13F holdings are quarter-end snapshots, so these moves reflect positioning as of Q2 2026, not real-time trading.
All figures on this page are computed from SEC Form 13F quarterly filings. 13F filers disclose long positions of $100,000 or more within 45 days of quarter end; short positions, options overlays and intra-quarter trades are not included, so treat the numbers as a quarterly snapshot of institutional ownership rather than real-time positioning.
| Fund | Quarter | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|---|
| Balyasny Asset Management history | Q2 2026 | 1.04M | $26.05M | 0.03% | Add |
| Franklin Resources history | Q2 2026 | 494.52K | $12.36M | 0.00% | Add |
| Marshall Wace history | Q2 2026 | 206.51K | $5.16M | 0.00% | Add |
| Millennium Management history | Q1 2026 | 146.56K | $4.62M | 0.00% | New |
| Goldman Sachs Group history | Q1 2026 | 61.57K | $1.94M | 0.00% | New |
| Bank of America Corp history | Q1 2026 | 33.02K | $1.04M | 0.00% | Add |
| UBS Group AG history | Q2 2026 | 21.54K | $538.52K | 0.00% | Add |
| Moore Capital Management history | Q3 2021 | 49.34K | $519.00K | 0.01% | New |
| Renaissance Technologies history | Q2 2026 | 20.42K | $510.40K | 0.00% | Reduce |
| Morgan Stanley history | Q2 2026 | 17.33K | $433.23K | 0.00% | Add |
| Geode Capital Management history | Q2 2026 | 14.62K | $365.44K | 0.00% | Add |
| Citadel Advisors history | Q2 2026 | 12.30K | $307.40K | 0.00% | New |
| Vanguard Group history | Q2 2025 | 29.09K | $249.59K | 0.00% | Reduce |
| Manulife Financial history | Q3 2021 | 13.48K | $142.00K | 0.00% | New |
| BNY Mellon history | Q1 2022 | 54.09K | $126.00K | 0.00% | Reduce |
| Charles Schwab Investment Management history | Q1 2022 | 43.87K | $102.00K | 0.00% | Hold |
| BlackRock Inc history | Q2 2026 | 3.40K | $85.05K | 0.00% | New |
| D. E. Shaw & Co history | Q2 2022 | 12.90K | $29.00K | 0.00% | New |
| Deutsche Bank AG history | Q1 2022 | 11.34K | $26.00K | 0.00% | Reduce |
| Two Sigma Investments history | Q1 2024 | 10.18K | $10.69K | 0.00% | Hold |
New Positions (Q2 2026)
- Citadel Advisors 12.30K sh · $307.40K
- BlackRock Inc 3.40K sh · $85.05K
- JPMorgan Chase & Co 40 sh · $929
Fully Exited (vs previous quarter)
- Millennium Management sold 146.56K sh · $4.62M
- Goldman Sachs Group sold 61.57K sh · $1.94M
- Bank of America Corp sold 33.02K sh · $1.04M
Fund Position History — shares by quarter (top 20 funds)
| Fund | Q3 2021 | Q4 2021 | Q1 2022 | Q2 2022 | Q3 2022 | Q4 2022 | Q1 2023 | Q2 2023 | Q3 2023 | Q4 2023 | Q1 2024 | Q2 2024 | Q3 2024 | Q4 2024 | Q1 2025 | Q2 2025 | Q3 2025 | Q4 2025 | Q1 2026 | Q2 2026 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Balyasny Asset Management | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 16.20K | 1.04M |
| Franklin Resources | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 133.51K | 494.52K |
| Marshall Wace | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 65.73K | 206.51K |
| UBS Group AG | 1.01K | 22.40K | 13.62K | 13.46K | 13.11K | 1.10K | 3.44K | 6.51K | — | — | 139 | — | — | 2 | 42.54K | 2.14K | 873 | — | 4.53K | 21.54K |
| Renaissance Technologies | — | — | 83.19K | 247.00K | 205.80K | 172.55K | 125.20K | 89.50K | 83.80K | 143.51K | 211.00K | 223.78K | 215.57K | 156.80K | 177.30K | — | 10.42K | 11.52K | 32.04K | 20.42K |
| Morgan Stanley | 3.31K | 36.85K | 11.09K | 26.18K | 13.57K | 249 | 128.64K | 219 | 219 | 219 | 12.22K | 12.22K | 12.22K | 9.22K | 9.22K | 10 | 10 | 10 | 8.79K | 17.33K |
| Geode Capital Management | 273.98K | 256.52K | 255.83K | 91.89K | 91.89K | 98.01K | 98.01K | 98.01K | 136.32K | 136.32K | 136.32K | 163.14K | 163.14K | 148.89K | 150.71K | — | — | — | 9.50K | 14.62K |
| Citadel Advisors | 123.26K | — | — | 59.38K | — | — | — | — | — | 25.80K | 23.86K | 15.37K | 66.04K | 57.72K | — | — | — | — | — | 12.30K |
| BlackRock Inc | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3.40K |
| JPMorgan Chase & Co | 169.34K | 159.78K | 156.37K | 1.30K | 1.71K | 668 | 668 | 668 | 668 | 668 | 668 | 748 | 707 | 705 | 702 | 32 | 32 | 32 | — | 40 |
| Goldman Sachs Group | — | 11.10K | 12.68K | 11.06K | 10.45K | — | — | — | — | — | — | — | — | — | — | — | — | — | 61.57K | — |
| Bank of America Corp | 8.51K | 25.03K | 48.00K | 16.87K | 36.91K | 48.68K | 89.99K | 90.77K | 90.77K | 90.79K | 90.76K | 139 | 258 | 136 | 142 | 583 | 631 | 306 | 33.02K | — |
| Citigroup Inc | 2.41K | 6.42K | 2.11K | 672 | 361 | — | — | — | — | — | — | — | — | — | 124 | — | — | 294 | — | — |
| Millennium Management | 258.66K | 87.29K | 49.74K | 133.71K | 79.08K | 67.24K | 70.19K | 54.21K | 57.31K | 38.30K | 32.59K | — | — | — | — | — | — | — | 146.56K | — |
| Fidelity Management & Research (FMR) | — | — | 179 | 199 | — | — | — | 8 | — | — | — | — | — | — | — | — | — | — | — | — |
| Deutsche Bank AG | 12.02K | 12.68K | 11.34K | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Two Sigma Investments | — | 28.77K | 62.18K | 38.78K | 35.78K | 31.08K | 15.28K | 13.58K | 10.88K | 10.18K | 10.18K | — | — | — | — | — | — | — | — | — |
| BNY Mellon | 47.07K | 55.45K | 54.09K | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| D. E. Shaw & Co | — | — | — | 12.90K | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Legal & General Investment Management America | 1.67K | 1.67K | 1.67K | 1.67K | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |