In the last 12 months, insiders at Sensei Biotherapeutics, Inc. ($SNSE) filed 111 transactions with the SEC: 3 open-market purchases totaling $3,964 and 18 sales totaling $6,012,354. Net insider sentiment: net selling.
Sensei Biotherapeutics, Inc. operates in the Pharmaceutical preparations industry (Life sciences sector).
Most Active Insiders
- Apeiron Investment Group Ltd. (TenPercentOwner) — 4 transactions totaling $5,441,363
- Cambrian BioPharma Inc (Not found) — 13 transactions totaling $2,289,793
- Peyer James (Not found) — 13 transactions totaling $2,289,793
- Celebi John (President and CEO) — 8 transactions totaling $31,163
- Colgan Erin (Chief Financial Officer) — 7 transactions totaling $16,415
View all SEC Filings for Sensei Biotherapeutics, Inc. (SNSE).
Set Up your own filters →Recent Insider Transactions
| Transaction Date | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|
| Feb. 17, 2026 | Parikh Anand Kiran | Chief Operating Officer | A | Employee Stock Option (right to buy) | 92533 | $0.00 | 92,533.0000 | 1,261,290 | 9999.99% | 7.34% |
| Feb. 17, 2026 | Parikh Anand Kiran | Chief Operating Officer | A | Series B Preferred Stock | 809822 | $0.00 | 809,822.0000 | 1,261,290 | 9999.99% | 64.21% |
| Feb. 19, 2026 | Parikh Anand Kiran | Chief Operating Officer | A | Employee Stock Option (right to buy) | 1239305 | $0.00 | 1,239,305.0000 | 1,261,290 | 9999.99% | 98.26% |
| Feb. 17, 2026 | Parikh Anand Kiran | Chief Operating Officer | A | Employee Stock Option (right to buy) | 56673 | $0.00 | 56,673.0000 | 1,261,290 | 9999.99% | 4.49% |
| Feb. 13, 2026 | Donenberg Phillip B. | Not found | A | Stock Option (right to buy) | 1900 | $0.00 | 1,900.0000 | 1,261,290 | 9999.99% | 0.15% |
| Dec. 9, 2025 | Cambrian BioPharma Inc | Not found | S | Common Stock | 2666 | $7.95 | 155,588.0000 | 1,261,290 | 1.68% | 0.21% |
| Dec. 9, 2025 | Peyer James | Not found | M | Common Stock | 395 | $6.40 | 155,983.0000 | 1,261,290 | 0.25% | 0.03% |
| Dec. 9, 2025 | Peyer James | Not found | S | Common Stock | 2666 | $7.95 | 155,588.0000 | 1,261,290 | 1.68% | 0.21% |
| Dec. 9, 2025 | Peyer James | Not found | S | Common Stock | 395 | $8.04 | 155,588.0000 | 1,261,290 | 0.25% | 0.03% |
| Dec. 9, 2025 | Cambrian BioPharma Inc | Not found | M | Common Stock | 395 | $6.40 | 155,983.0000 | 1,261,290 | 0.25% | 0.03% |
| Dec. 9, 2025 | Cambrian BioPharma Inc | Not found | S | Common Stock | 395 | $8.04 | 155,588.0000 | 1,261,290 | 0.25% | 0.03% |
| Dec. 9, 2025 | Cambrian BioPharma Inc | Not found | S | Common Stock | 446 | $7.92 | 155,142.0000 | 1,261,290 | 0.29% | 0.04% |
| Dec. 9, 2025 | Cambrian BioPharma Inc | Not found | M | Stock Option (Right to Buy) | 395 | $0.00 | 0.0000 | 1,261,290 | 100.00% | 0.03% |
| Dec. 8, 2025 | Peyer James | Not found | S | Common Stock | 3105 | $8.59 | 158,254.0000 | 1,261,290 | 1.92% | 0.25% |
| Dec. 9, 2025 | Peyer James | Not found | S | Common Stock | 446 | $7.92 | 155,142.0000 | 1,261,290 | 0.29% | 0.04% |
| Dec. 9, 2025 | Peyer James | Not found | M | Stock Option (Right to Buy) | 395 | $0.00 | 0.0000 | 1,261,290 | 100.00% | 0.03% |
| Dec. 9, 2025 | Cambrian BioPharma Inc | Not found | S | Common Stock | 3105 | $8.59 | 158,254.0000 | 1,261,290 | 1.92% | 0.25% |
| Dec. 5, 2025 | Peyer James | Not found | S | Common Stock | 14508 | $11.40 | 163,146.0000 | 1,261,290 | 8.17% | 1.15% |
| Dec. 5, 2025 | Peyer James | Not found | S | Common Stock | 1745 | $12.29 | 161,401.0000 | 1,261,290 | 1.07% | 0.14% |
| Dec. 5, 2025 | Peyer James | Not found | S | Common Stock | 42 | $13.16 | 161,359.0000 | 1,261,290 | 0.03% | 0.00% |
| Dec. 5, 2025 | Cambrian BioPharma Inc | Not found | S | Common Stock | 42 | $13.16 | 161,359.0000 | 1,261,290 | 0.03% | 0.00% |
| Dec. 5, 2025 | Cambrian BioPharma Inc | Not found | S | Common Stock | 1745 | $12.29 | 161,401.0000 | 1,261,290 | 1.07% | 0.14% |
| Dec. 5, 2025 | Cambrian BioPharma Inc | Not found | S | Common Stock | 14508 | $11.40 | 163,146.0000 | 1,261,290 | 8.17% | 1.15% |
| Dec. 4, 2025 | Cambrian BioPharma Inc | Not found | S | Common Stock | 5000 | $9.06 | 177,654.0000 | 1,261,290 | 2.74% | 0.40% |
| Dec. 4, 2025 | Peyer James | Not found | S | Common Stock | 5000 | $9.06 | 177,654.0000 | 1,261,290 | 2.74% | 0.40% |
| May 21, 2025 | Cambrian BioPharma Inc | Not found | A | Stock Option (Right to Buy) | 19000 | $0.00 | 19,000.0000 | 25,117,238 | 9999.99% | 0.08% |
| May 21, 2025 | Peyer James | Not found | A | Stock Option (Right to Buy) | 19000 | $0.00 | 19,000.0000 | 25,117,238 | 9999.99% | 0.08% |
| May 21, 2025 | RICKS THOMAS G | Not found | A | Stock Option (Right to Buy) | 19000 | $0.00 | 19,000.0000 | 25,117,238 | 9999.99% | 0.08% |
| May 21, 2025 | RINGO WILLIAM R | Not found | A | Stock Option (Right to Buy) | 19000 | $0.00 | 19,000.0000 | 25,117,238 | 9999.99% | 0.08% |
| May 21, 2025 | Holmen Bob | Not found | A | Stock Option (Right to Buy) | 19000 | $0.00 | 19,000.0000 | 25,117,238 | 9999.99% | 0.08% |
| May 21, 2025 | Humer Kristian | Not found | A | Stock Option (Right to Buy) | 19000 | $0.00 | 19,000.0000 | 25,117,238 | 9999.99% | 0.08% |
| Feb. 19, 2025 | van der Horst Edward | CHIEF SCIENTIFIC OFFICER | F | Common Stock | 2276 | $0.48 | 59,794.0000 | 25,117,238 | 3.67% | 0.01% |
| Feb. 19, 2025 | Celebi John | PRESIDENT AND CEO | F | Common Stock | 5558 | $0.48 | 105,862.0000 | 25,117,238 | 4.99% | 0.02% |
| Feb. 14, 2025 | Krebs Stephanie | Chief Business Officer | A | Stock Option (Right to Buy) | 120000 | $0.00 | 120,000.0000 | 25,117,238 | 9999.99% | 0.48% |
| Feb. 14, 2025 | Craver Josiah | Principal Financial Officer | A | Stock Option (Right to Buy) | 50000 | $0.00 | 50,000.0000 | 25,117,238 | 9999.99% | 0.20% |
| Feb. 14, 2025 | Celebi John | PRESIDENT AND CEO | A | Stock Option (Right to Buy) | 360000 | $0.00 | 360,000.0000 | 25,117,238 | 9999.99% | 1.43% |
| Feb. 14, 2025 | van der Horst Edward | CHIEF SCIENTIFIC OFFICER | A | Stock Option (Right to Buy) | 110000 | $0.00 | 110,000.0000 | 25,117,238 | 9999.99% | 0.44% |
| Dec. 20, 2024 | Krebs Stephanie | Chief Business Officer | A | Stock Option (Right to Buy) | 120000 | $0.00 | 120,000.0000 | 1,257,299 | 9999.99% | 9.54% |
| Dec. 20, 2024 | van der Horst Edward | CHIEF SCIENTIFIC OFFICER | A | Stock Option (Right to Buy) | 100000 | $0.00 | 100,000.0000 | 1,257,299 | 9999.99% | 7.95% |
| Dec. 20, 2024 | Craver Josiah | Principal Financial Officer | A | Stock Option (Right to Buy) | 100000 | $0.00 | 100,000.0000 | 1,257,299 | 9999.99% | 7.95% |
| Dec. 20, 2024 | Celebi John | PRESIDENT AND CEO | A | Stock Option (Right to Buy) | 355000 | $0.00 | 355,000.0000 | 1,257,299 | 9999.99% | 28.24% |
| June 11, 2024 | Cambrian BioPharma Inc | Not found | A | Stock Option (Right to Buy) | 19000 | $0.00 | 19,000.0000 | 27,952,857 | 9999.99% | 0.07% |
| June 11, 2024 | RICKS THOMAS G | Not found | A | Stock Option (Right to Buy) | 19000 | $0.00 | 19,000.0000 | 27,952,857 | 9999.99% | 0.07% |
| June 11, 2024 | Vojta Deneen | Not found | A | Stock Option (Right to Buy) | 19000 | $0.00 | 19,000.0000 | 27,952,857 | 9999.99% | 0.07% |
| June 11, 2024 | Peyer James | Not found | A | Stock Option (Right to Buy) | 19000 | $0.00 | 19,000.0000 | 27,952,857 | 9999.99% | 0.07% |
| June 11, 2024 | RINGO WILLIAM R | Not found | A | Stock Option (Right to Buy) | 19000 | $0.00 | 19,000.0000 | 27,952,857 | 9999.99% | 0.07% |
| June 11, 2024 | Humer Kristian | Not found | A | Stock Option (Right to Buy) | 19000 | $0.00 | 19,000.0000 | 27,952,857 | 9999.99% | 0.07% |
| June 11, 2024 | English Jessie | Not found | A | Stock Option (Right to Buy) | 19000 | $0.00 | 19,000.0000 | 27,952,857 | 9999.99% | 0.07% |
| June 11, 2024 | Holmen Bob | Not found | A | Stock Option (Right to Buy) | 19000 | $0.00 | 19,000.0000 | 27,952,857 | 9999.99% | 0.07% |
| Feb. 15, 2024 | van der Horst Edward | CHIEF SCIENTIFIC OFFICER | F | Common Stock | 2843 | $0.79 | 56,070.0000 | 27,952,857 | 4.83% | 0.01% |
| Feb. 15, 2024 | Colgan Erin | CHIEF FINANCIAL OFFICER | A | Stock Option (Right to Buy) | 94128 | $0.00 | 94,128.0000 | 27,952,857 | 9999.99% | 0.34% |
| Feb. 15, 2024 | Colgan Erin | CHIEF FINANCIAL OFFICER | A | Stock Option (Right to Buy) | 125000 | $0.00 | 125,000.0000 | 27,952,857 | 9999.99% | 0.45% |
| Feb. 15, 2024 | Colgan Erin | CHIEF FINANCIAL OFFICER | F | Common Stock | 3627 | $0.79 | 67,462.0000 | 27,952,857 | 5.10% | 0.01% |
| Feb. 15, 2024 | Celebi John | PRESIDENT AND CEO | A | Stock Option (Right to Buy) | 165889 | $0.00 | 165,889.0000 | 27,952,857 | 9999.99% | 0.59% |
| Feb. 15, 2024 | Celebi John | PRESIDENT AND CEO | A | Stock Option (Right to Buy) | 315000 | $0.00 | 315,000.0000 | 27,952,857 | 9999.99% | 1.13% |
| Feb. 15, 2024 | Celebi John | PRESIDENT AND CEO | F | Common Stock | 5891 | $0.79 | 105,420.0000 | 27,952,857 | 5.29% | 0.02% |
| Feb. 15, 2024 | van der Horst Edward | CHIEF SCIENTIFIC OFFICER | A | Stock Option (Right to Buy) | 90102 | $0.00 | 90,102.0000 | 27,952,857 | 9999.99% | 0.32% |
| Feb. 15, 2024 | van der Horst Edward | CHIEF SCIENTIFIC OFFICER | A | Stock Option (Right to Buy) | 125000 | $0.00 | 125,000.0000 | 27,952,857 | 9999.99% | 0.45% |
| Nov. 1, 2023 | Krebs Stephanie | Chief Business Officer | A | Stock Option (Right to Buy) | 125000 | $0.00 | 125,000.0000 | 0 | 9999.99% | 0.00% |
| Sept. 11, 2023 | Celebi John | President and CEO | P | Common Stock | 500 | $0.85 | 111,311.0000 | 0 | 0.45% | 0.00% |
| Feb. 15, 2023 | van der Horst Edward | Chief Scientific Officer | F | Common Stock | 9525 | $1.50 | 52,913.0000 | 0 | 15.26% | 0.00% |
| Feb. 15, 2023 | Colgan Erin | Chief Financial Officer | F | Common Stock | 10943 | $1.50 | 68,089.0000 | 0 | 13.85% | 0.00% |
| Feb. 15, 2023 | Gallagher Patrick Stephen | Chief Business Officer | F | Common Stock | 9383 | $1.50 | 34,130.0000 | 0 | 21.56% | 0.00% |
| Feb. 15, 2023 | Celebi John | President and CEO | F | Common Stock | 20492 | $1.50 | 110,811.0000 | 0 | 15.61% | 0.00% |
| July 31, 2023 | Peyer James | Not found | D | Common Stock | 1587302 | $1.26 | 3,653,120.0000 | 0 | 30.29% | 0.00% |
| July 31, 2023 | Cambrian BioPharma Inc | Not found | D | Common Stock | 1587302 | $1.26 | 3,653,120.0000 | 0 | 30.29% | 0.00% |
| July 10, 2023 | RINGO WILLIAM R | Director | A | Stock Option (Right to Buy) | 14550 | $0.00 | 14,550.0000 | 0 | 9999.99% | 0.00% |
| July 10, 2023 | RINGO WILLIAM R | Director | A | Common Stock | 4466 | $0.00 | 23,399.0000 | 0 | 23.59% | 0.00% |
| July 10, 2023 | RICKS THOMAS G | Director | A | Common Stock | 4466 | $0.00 | 343,863.0000 | 0 | 1.32% | 0.00% |
| July 10, 2023 | RICKS THOMAS G | Director | A | Stock Option (Right to Buy) | 14550 | $0.00 | 14,550.0000 | 0 | 9999.99% | 0.00% |
| July 10, 2023 | Broder Samuel | Director | A | Common Stock | 4466 | $0.00 | 8,932.0000 | 0 | 100.00% | 0.00% |
| July 10, 2023 | Broder Samuel | Director | A | Stock Option (Right to Buy) | 14550 | $0.00 | 14,550.0000 | 0 | 9999.99% | 0.00% |
| July 10, 2023 | Humer Kristian | Director | A | Common Stock | 4466 | $0.00 | 8,932.0000 | 0 | 100.00% | 0.00% |
| July 10, 2023 | Humer Kristian | Director | A | Stock Option (Right to Buy) | 14550 | $0.00 | 14,550.0000 | 0 | 9999.99% | 0.00% |
| July 10, 2023 | English Jessie | Director | A | Common Stock | 4466 | $0.00 | 8,932.0000 | 0 | 100.00% | 0.00% |
| July 10, 2023 | English Jessie | Director | A | Stock Option (Right to Buy) | 14550 | $0.00 | 14,550.0000 | 0 | 9999.99% | 0.00% |
| July 10, 2023 | Vojta Deneen | Director | A | Common Stock | 4466 | $0.00 | 8,932.0000 | 0 | 100.00% | 0.00% |
| July 10, 2023 | Vojta Deneen | Director | A | Stock Option (Right to Buy) | 14550 | $0.00 | 14,550.0000 | 0 | 9999.99% | 0.00% |
| July 10, 2023 | Holmen Bob | Director | A | Common Stock | 4466 | $0.00 | 25,598.0000 | 0 | 21.13% | 0.00% |
| July 10, 2023 | Holmen Bob | Director | A | Stock Option (Right to Buy) | 14550 | $0.00 | 14,550.0000 | 0 | 9999.99% | 0.00% |
| July 10, 2023 | Peyer James | Director | A | Common Stock | 4466 | $0.00 | 5,240,422.0000 | 0 | 0.09% | 0.00% |
| July 10, 2023 | Peyer James | Director | A | Stock Option (Right to Buy) | 14550 | $0.00 | 14,550.0000 | 0 | 9999.99% | 0.00% |
| July 10, 2023 | Cambrian BioPharma Inc | TenPercentOwner | A | Common Stock | 4466 | $0.00 | 5,240,422.0000 | 0 | 0.09% | 0.00% |
| July 10, 2023 | Cambrian BioPharma Inc | TenPercentOwner | A | Stock Option (Right to Buy) | 14550 | $0.00 | 14,550.0000 | 0 | 9999.99% | 0.00% |
| June 1, 2023 | Apeiron Investment Group Ltd. | TenPercentOwner | S | Common Stock | 2485923 | $1.58 | 0.0000 | 0 | 100.00% | 0.00% |
| June 1, 2023 | Apeiron Investment Group Ltd. | TenPercentOwner | S | Common Stock | 955738 | $1.58 | 0.0000 | 0 | 100.00% | 0.00% |
| Feb. 15, 2023 | Colgan Erin | Chief Financial Officer | A | Common Stock | 30046 | $0.00 | 57,732.0000 | 0 | 108.52% | 0.00% |
| Feb. 15, 2023 | Colgan Erin | Chief Financial Officer | A | Stock Option (Right to Buy) | 90000 | $0.00 | 90,000.0000 | 0 | 9999.99% | 0.00% |
| Feb. 15, 2023 | Colgan Erin | Chief Financial Officer | A | Common Stock | 21300 | $0.00 | 79,032.0000 | 0 | 36.89% | 0.00% |
| Feb. 15, 2023 | Celebi John | President and CEO | A | Common Stock | 51893 | $0.00 | 110,003.0000 | 0 | 89.30% | 0.00% |
| Feb. 15, 2023 | Celebi John | President and CEO | A | Common Stock | 21300 | $0.00 | 131,303.0000 | 0 | 19.36% | 0.00% |
| Feb. 15, 2023 | Celebi John | President and CEO | A | Stock Option (Right to Buy) | 90000 | $0.00 | 90,000.0000 | 0 | 9999.99% | 0.00% |
| Feb. 15, 2023 | Gallagher Patrick Stephen | Chief Business Officer | A | Common Stock | 29313 | $0.00 | 29,313.0000 | 0 | 9999.99% | 0.00% |
| Feb. 15, 2023 | Gallagher Patrick Stephen | Chief Business Officer | A | Common Stock | 14200 | $0.00 | 43,513.0000 | 0 | 48.44% | 0.00% |
| Feb. 15, 2023 | Gallagher Patrick Stephen | Chief Business Officer | A | Stock Option (Right to Buy) | 60000 | $0.00 | 60,000.0000 | 0 | 9999.99% | 0.00% |
| June 10, 2022 | Cambrian BioPharma Inc | TenPercentOwner | A | Restricted Stock Unit Grant | 4466 | $0.00 | 5,235,956.0000 | 0 | 0.09% | 0.00% |
| June 10, 2022 | Cambrian BioPharma Inc | TenPercentOwner | A | Stock Option (right to buy) | 14550 | $0.00 | 14,550.0000 | 0 | 9999.99% | 0.00% |
| Feb. 23, 2023 | Apeiron Investment Group Ltd. | TenPercentOwner | P | Common Stock | 1100 | $1.62 | 3,440,561.0000 | 0 | 0.03% | 0.00% |
| Feb. 23, 2023 | Apeiron Investment Group Ltd. | TenPercentOwner | P | Common Stock | 1100 | $1.60 | 3,441,661.0000 | 0 | 0.03% | 0.00% |
| Feb. 15, 2023 | Celebi John | President and CEO | A | Stock Option (Right to Buy) | 90000 | $0.00 | 90,000.0000 | 0 | 9999.99% | 0.00% |
| Feb. 15, 2023 | Gallagher Patrick Stephen | Chief Business Officer | A | Common Stock | 29313 | $0.00 | 29,313.0000 | 0 | 9999.99% | 0.00% |
| Feb. 15, 2023 | Gallagher Patrick Stephen | Chief Business Officer | A | Common Stock | 14200 | $0.00 | 43,515.0000 | 0 | 48.44% | 0.00% |
| Feb. 15, 2023 | Gallagher Patrick Stephen | Chief Business Officer | A | Stock Option (Right to Buy) | 60000 | $0.00 | 60,000.0000 | 0 | 9999.99% | 0.00% |
| Feb. 15, 2023 | van der Horst Edward | Chief Scientific Officer | A | Common Stock | 23565 | $0.00 | 44,738.0000 | 0 | 111.30% | 0.00% |
| Feb. 15, 2023 | van der Horst Edward | Chief Scientific Officer | A | Common Stock | 17700 | $0.00 | 62,438.0000 | 0 | 39.56% | 0.00% |
| Feb. 15, 2023 | van der Horst Edward | Chief Scientific Officer | A | Stock Option (Right to Buy) | 75000 | $0.00 | 75,000.0000 | 0 | 9999.99% | 0.00% |
| Feb. 15, 2023 | Colgan Erin | Chief Financial Officer | A | Common Stock | 21300 | $0.00 | 73,032.0000 | 0 | 41.17% | 0.00% |
| Feb. 15, 2023 | Colgan Erin | Chief Financial Officer | A | Common Stock | 30046 | $0.00 | 51,732.0000 | 0 | 138.55% | 0.00% |
| Feb. 15, 2023 | Colgan Erin | Chief Financial Officer | A | Stock Option (Right to Buy) | 90000 | $0.00 | 90,000.0000 | 0 | 9999.99% | 0.00% |
| Feb. 15, 2023 | Celebi John | President and CEO | A | Common Stock | 51893 | $0.00 | 106,007.0000 | 0 | 95.90% | 0.00% |
| Feb. 15, 2023 | Celebi John | President and CEO | A | Common Stock | 21300 | $0.00 | 127,307.0000 | 0 | 20.09% | 0.00% |