Sensei Biotherapeutics, Inc.
Total Trades
43
Buys
36
Sells
5
Largest Trade
$1M+
Insiders
4
Institutional Funds
8
Inst. Value
$100K–$500K
Activist Filings
16
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Cambrian BioPharma Inc | 10% Owner | EXERCISE | $1K–$15K | 395 | $6.40 | Dec 10, 2025 |
| Cambrian BioPharma Inc | 10% Owner | SELL | $50K–$100K | 7K | $8.25 | Dec 10, 2025 |
| Peyer James | 10% Owner | SELL | $50K–$100K | 7K | $8.25 | Dec 10, 2025 |
| Peyer James | 10% Owner | EXERCISE | $1K–$15K | 395 | $6.40 | Dec 10, 2025 |
| Cambrian BioPharma Inc | 10% Owner | SELL | $100K–$500K | 21K | $10.93 | Dec 8, 2025 |
| Peyer James | 10% Owner | SELL | $100K–$500K | 21K | $10.93 | Dec 8, 2025 |
| Celebi John | President and CEO | BUY | <$1K | 500 | $0.85 | Sep 13, 2023 |
| Apeiron Investment Group Ltd. | 10% Owner | SELL | $1M+ | 3.4M | $1.58 | Jun 2, 2023 |
| Apeiron Investment Group Ltd. | 10% Owner | BUY | $1K–$15K | 2K | $1.61 | Feb 28, 2023 |
| Cambrian BioPharma Inc | 10% Owner | BUY | $1K–$15K | 1K | $3.20 | Mar 2, 2022 |
| Peyer James | Director | BUY | $1K–$15K | 1K | $3.20 | Mar 2, 2022 |
| Peyer James | Director | BUY | $1K–$15K | 3K | $3.60 | Mar 1, 2022 |
| Cambrian BioPharma Inc | 10% Owner | BUY | $1K–$15K | 3K | $3.60 | Mar 1, 2022 |
| Peyer James | Director | BUY | $1K–$15K | 3K | $3.65 | Feb 28, 2022 |
| Cambrian BioPharma Inc | 10% Owner | BUY | $1K–$15K | 3K | $3.65 | Feb 28, 2022 |
| Cambrian BioPharma Inc | 10% Owner | BUY | $50K–$100K | 18K | $3.65 | Feb 25, 2022 |
| Peyer James | Director | BUY | $50K–$100K | 18K | $3.65 | Feb 25, 2022 |
| Peyer James | Director | BUY | $50K–$100K | 20K | $4.02 | Feb 22, 2022 |
| Cambrian BioPharma Inc | 10% Owner | BUY | $50K–$100K | 20K | $4.02 | Feb 22, 2022 |
| Cambrian BioPharma Inc | 10% Owner | BUY | $50K–$100K | 13K | $4.19 | Feb 16, 2022 |
| Peyer James | Director | BUY | $50K–$100K | 13K | $4.19 | Feb 16, 2022 |
| Peyer James | Director | BUY | $50K–$100K | 18K | $4.45 | Feb 15, 2022 |
| Cambrian BioPharma Inc | 10% Owner | BUY | $50K–$100K | 18K | $4.45 | Feb 15, 2022 |
| Cambrian BioPharma Inc | 10% Owner | BUY | $100K–$500K | 30K | $4.53 | Feb 8, 2022 |
| Peyer James | Director | BUY | $100K–$500K | 30K | $4.53 | Feb 8, 2022 |
| Cambrian BioPharma Inc | 10% Owner | BUY | $50K–$100K | 15K | $4.26 | Jan 31, 2022 |
| Peyer James | Director | BUY | $50K–$100K | 15K | $4.26 | Jan 31, 2022 |
| Peyer James | Director | BUY | $100K–$500K | 50K | $4.72 | Jan 27, 2022 |
| Cambrian BioPharma Inc | 10% Owner | BUY | $100K–$500K | 50K | $4.72 | Jan 27, 2022 |
| Peyer James | Director | BUY | $100K–$500K | 47K | $4.82 | Jan 25, 2022 |
| Cambrian BioPharma Inc | 10% Owner | BUY | $100K–$500K | 47K | $4.82 | Jan 25, 2022 |
| Peyer James | Director | BUY | $100K–$500K | 30K | $5.10 | Jan 21, 2022 |
| Cambrian BioPharma Inc | 10% Owner | BUY | $100K–$500K | 30K | $5.10 | Jan 21, 2022 |
| Peyer James | Director | BUY | $50K–$100K | 10K | $5.08 | Jan 20, 2022 |
| Cambrian BioPharma Inc | 10% Owner | BUY | $50K–$100K | 10K | $5.08 | Jan 20, 2022 |
| Peyer James | Director | BUY | $100K–$500K | 26K | $5.10 | Jan 18, 2022 |
| Cambrian BioPharma Inc | 10% Owner | BUY | $100K–$500K | 26K | $5.10 | Jan 18, 2022 |
| Peyer James | Director | BUY | $100K–$500K | 20K | $5.20 | Jan 13, 2022 |
| Cambrian BioPharma Inc | 10% Owner | BUY | $100K–$500K | 20K | $5.20 | Jan 13, 2022 |
| Peyer James | Director | BUY | $50K–$100K | 10K | $5.28 | Jan 11, 2022 |
| Cambrian BioPharma Inc | 10% Owner | BUY | $50K–$100K | 10K | $5.28 | Jan 11, 2022 |
| Peyer James | Director | BUY | $1K–$15K | 1K | $4.85 | Jan 3, 2022 |
| Cambrian BioPharma Inc | 10% Owner | BUY | $1K–$15K | 1K | $4.85 | Jan 3, 2022 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 8 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| Ikarian Capital, LLC | 21K | $100K–$500K | SH |
| RENAISSANCE TECHNOLOGIES LLC | 12K | $100K–$500K | SH |
| CITIGROUP INC | 294 | $1K–$15K | SH |
| JPMORGAN CHASE & CO | 32 | <$1K | SH |
| MORGAN STANLEY | 10 | <$1K | SH |
| BNP PARIBAS FINANCIAL MARKETS | 9 | <$1K | SH |
| BNP PARIBAS | 7 | <$1K | SH |
| SBI Securities Co., Ltd. | 4 | <$1K | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
Trails Edge Capital Partners, LP
SC 13G · Feb 25, 2026
9.9%
126K shares
SC 13D/A · Mar 7, 2024
2.2%
554K shares
SC 13D/A · Feb 13, 2024
3.1%
769K shares
SC 13D · Nov 3, 2023
3.9%
1.0M shares
SC 13G/A · Aug 4, 2023
0.0%
0 shares
Presight Sensei Co-Invest Fund, L.P.
SC 13D/A · Jun 2, 2023
0.0%
0 shares
Presight Sensei Co-Invest Fund, L.P.
SC 13D/A · May 23, 2023
3.1%
956K shares
Presight Sensei Co-Invest Fund, L.P.
SC 13D/A · Mar 9, 2023
3.1%
956K shares
SC 13G/A · Feb 14, 2023
0.0%
0 shares
SC 13G/A · Feb 13, 2023
0.0%
0 shares
Presight Sensei Co-Invest Fund, L.P.
SC 13D/A · Nov 21, 2022
3.1%
956K shares
Presight Sensei Co-Invest Fund, L.P.
SC 13D/A · Nov 2, 2022
3.1%
956K shares
Presight Sensei Co-Invest Fund, L.P.
SC 13D · Jul 19, 2022
3.1%
956K shares
SC 13G/A · Jun 10, 2022
0.0%
0 shares
SC 13G · Feb 14, 2022
14.5%
4.4M shares
Presight Sensei Co-Invest Fund, L.P.
SC 13G/A · Feb 10, 2022
3.1%
956K shares