SNSE
Sensei Biotherapeutics, Inc.
Insiders sold $364K net in the last 90 days ·3 sellers, 1 buyer· latest Form 4 filed Jun 1, 2026
Insider Buying
$1.3M
reported purchases (SEC code P)
Insider Selling
$2.3M
reported sales (SEC code S)
Unique Insiders
3
in the rolling window
Latest filing
Jun 1, 2026
Cambrian BioPharma Inc
Sensei Biotherapeutics, Inc. (SNSE) has 9 SEC Form 4 filings (73 transaction rows) in the rolling window, disclosed by 3 distinct insiders. Most recent filing: Jun 1, 2026.
Inside the rolling window, 3 insiders at Sensei Biotherapeutics, Inc. reported 8 open-market purchases totaling $1.3M and 17 open-market sales totaling $2.3M. The most active filer is 10% Owner MILLENNIUM MANAGEMENT LLC with 16 filings. Insiders have net sold $938K over the trailing 6 months. The most recent open-market filing is a sale of 25,000 shares by 10% Owner Cambrian BioPharma Inc, dated Jun 1, 2026, worth $501K.
- Industry:Biotechnology
- CEO:Christopher W. Gerry
- Employees:14
- HQ:Rockville, MD, US
- IPO:2021-02-04
| Source | |||||||
|---|---|---|---|---|---|---|---|
Cambrian BioPharma IncFirst in 6 months | 10% Owner | Sale | 25,000 | $501K | Jun 1 | +0.0% | SEC ↗ |
Peyer JamesFirst in 6 months | See remarks below | Sale | 25,000 | $501K | Jun 1 | +0.0% | SEC ↗ |
MILLENNIUM MANAGEMENT LLCFirst filing | 10% Owner | Purchase | 2,003 | $70K | May 15 | +0.0% | SEC ↗ |
MILLENNIUM MANAGEMENT LLCFirst filing | 10% Owner | Sale | 7,666 | $246K | May 15 | +0.0% | SEC ↗ |
MILLENNIUM MANAGEMENT LLCFirst filing | 10% Owner | Purchase | 1,104 | $34K | May 15 | — | SEC ↗ |
MILLENNIUM MANAGEMENT LLCFirst filing | 10% Owner | Sale | 1,259 | $39K | May 15 | — | SEC ↗ |
MILLENNIUM MANAGEMENT LLCFirst filing | 10% Owner | Purchase | 1,108 | $37K | May 15 | — | SEC ↗ |
MILLENNIUM MANAGEMENT LLCFirst filing | 10% Owner | Sale | 8,151 | $253K | May 15 | — | SEC ↗ |
MILLENNIUM MANAGEMENT LLCFirst filing | 10% Owner | Purchase | 5,731 | $164K | May 15 | — | SEC ↗ |
MILLENNIUM MANAGEMENT LLCFirst filing | 10% Owner | Sale | 1,857 | $52K | May 15 | — | SEC ↗ |
MILLENNIUM MANAGEMENT LLCFirst filing | 10% Owner | Purchase | 15,321 | $408K | May 15 | — | SEC ↗ |
MILLENNIUM MANAGEMENT LLCFirst filing | 10% Owner | Sale | 505 | $14K | May 15 | — | SEC ↗ |
MILLENNIUM MANAGEMENT LLCFirst filing | 10% Owner | Purchase | 9,533 | $246K | May 15 | — | SEC ↗ |
MILLENNIUM MANAGEMENT LLCFirst filing | 10% Owner | Sale | 888 | $24K | May 15 | — | SEC ↗ |
MILLENNIUM MANAGEMENT LLCFirst filing | 10% Owner | Purchase | 6,005 | $169K | May 15 | — | SEC ↗ |
MILLENNIUM MANAGEMENT LLCFirst filing | 10% Owner | Sale | 1,591 | $41K | May 15 | — | SEC ↗ |
MILLENNIUM MANAGEMENT LLCFirst filing | 10% Owner | Purchase | 6,175 | $213K | May 15 | — | SEC ↗ |
MILLENNIUM MANAGEMENT LLCFirst filing | 10% Owner | Sale | 1,150 | $36K | May 15 | — | SEC ↗ |
| See remarks below | Sale | 3,105 | $27K | Dec 10 | — | SEC ↗ | |
| See remarks below | Sale | 3,507 | $28K | Dec 10 | — | SEC ↗ | |
| 10% Owner | Sale | 6,612 | $55K | Dec 10 | — | SEC ↗ | |
Peyer JamesFirst filing | See remarks below | Sale | 5,000 | $45K | Dec 8 | — | SEC ↗ |
Peyer JamesFirst filing | See remarks below | Sale | 16,295 | $187K | Dec 8 | — | SEC ↗ |
Cambrian BioPharma IncFirst filing | 10% Owner | Sale | 5,000 | $45K | Dec 8 | — | SEC ↗ |
Cambrian BioPharma IncFirst filing | 10% Owner | Sale | 16,295 | $187K | Dec 8 | — | SEC ↗ |
Earnings: last 7 quarters
Frequently asked questions
How many SEC Form 4 insider filings does SNSE have?
Sensei Biotherapeutics, Inc. (SNSE) has 9 SEC Form 4 filings (73 transaction rows) in the rolling 365-day window, disclosed by 3 distinct insiders. Most recent filing: Jun 1, 2026.
When was the most recent SEC Form 4 filing for SNSE?
The most recent Form 4 filing for SNSE on Tracefour is dated Jun 1, 2026.
Who is the most active insider at SNSE?
The most active SEC Form 4 filer at SNSE in the rolling window is 10% Owner MILLENNIUM MANAGEMENT LLC, with 16 filings.
What is the net insider flow at SNSE over the last 6 months?
Over the trailing 180 days, insiders at SNSE have net sold $938K based on SEC Form 4 disclosures.
What is the total insider buy and sell value at SNSE in the current window?
Inside the rolling window, insiders at SNSE bought $1.3M and sold $2.3M based on SEC Form 4 filings.
Can I get alerts for SNSE insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at Sensei Biotherapeutics, Inc. (SNSE). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.