Sensei Biotherapeutics, Inc. (SNSE) has 20 known insider and institutional holders on record. The largest holder is Apeiron Investment Group Ltd. with 2,484,823 shares. Other notable holders include Cambrian BioPharma Inc and Peyer James.
Over the last 12 months, insiders have made 19 transactions in SNSE stock — 9 buys (valued at $33.85M) and 5 sells (valued at $118.38K). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.
SNSE Insider Ownership
Top Holder
Apeiron Investment Group Ltd.
2,484,823 shares
Buys (12 mo)
9
$33.85M value
Sells (12 mo)
5
$118.38K value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Apeiron Investment Group Ltd. |
10 Percent Owner |
2,484,823 |
2023-02-27 |
|
| 2 |
Cambrian Biopharma Inc |
10 Percent Owner |
177,654 |
2025-12-08 |
|
| 3 |
Peyer James |
10 Percent Owner, Other: See Remarks Below |
158,254 |
2025-12-10 |
|
| 4 |
Krebs Stephanie |
Chief Business Officer |
120,000 |
2025-02-14 |
|
| 5 |
Celebi John |
President and CEO |
105,862 |
2025-02-26 |
|
| 6 |
Hoey Anupama |
Chief Business Officer |
83,333 |
2021-02-05 |
|
| 7 |
Fjaellskog Marie-louise |
Chief Medical Officer |
79,166 |
2021-02-05 |
|
| 8 |
Colgan Erin |
Chief Financial Officer |
67,462 |
2024-02-16 |
|
| 9 |
Van Der Horst Edward |
Chief Scientific Officer |
59,794 |
2025-02-26 |
|
| 10 |
Parikh Anand Kiran |
Chief Operating Officer |
56,673 |
2026-02-19 |
|
| 11 |
Craver Josiah |
Principal Financial Officer |
50,000 |
2025-02-14 |
|
| 12 |
Gallagher Patrick Stephen |
Chief Business Officer |
34,130 |
2023-09-11 |
|
| 13 |
Pierce Robert Hamilton |
Chief R&d Officer |
21,000 |
2022-02-17 |
|
| 14 |
Ricks Thomas G |
Director |
19,000 |
2025-05-23 |
|
| 15 |
Holmen Bob |
Director |
19,000 |
2025-05-23 |
|
| 16 |
Ringo William R |
Director |
19,000 |
2025-05-23 |
|
| 17 |
English Jessie |
Director |
19,000 |
2024-06-13 |
|
| 18 |
Humer Kristian |
Director |
19,000 |
2025-05-23 |
|
| 19 |
Vojta Deneen |
Director |
19,000 |
2024-06-13 |
|
| 20 |
Broder Samuel |
Director |
8,932 |
2023-07-12 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-02-19 |
Parikh Anand Kiran |
Chief Operating Officer |
RSU Award |
1,239,305 |
$27.22 |
$33.73M |
| 2026-02-17 |
Parikh Anand Kiran |
Chief Operating Officer |
RSU Award |
56,673 |
$1.16 |
$65.74K |
| 2026-02-17 |
Parikh Anand Kiran |
Officer |
Unknown |
- |
- |
- |
| 2026-02-13 |
Donenberg Phillip B. |
Director |
RSU Award |
1,900 |
$9.09 |
$17.27K |
| 2026-02-13 |
Donenberg Phillip B. |
Officer |
Unknown |
- |
- |
- |
| 2025-12-09 |
Peyer James |
10 Percent Owner, Other: See Remarks Below |
Option Exercise (Sell) |
395 |
$6.40 |
$2.53K |
| 2025-12-08 |
Peyer James |
10 Percent Owner, Other: See Remarks Below |
Informative Sell |
3,105 |
$8.59 |
$26.67K |
| 2025-12-09 |
Cambrian Biopharma Inc |
10 Percent Owner |
Option Exercise (Sell) |
395 |
$6.40 |
$2.53K |
| 2025-12-05 |
Peyer James |
10 Percent Owner, Other: See Remarks Below |
Informative Sell |
42 |
$13.16 |
$552.72 |
| 2025-12-04 |
Peyer James |
10 Percent Owner, Other: See Remarks Below |
Informative Sell |
5,000 |
$9.06 |
$45.3K |
| 2025-12-05 |
Cambrian Biopharma Inc |
10 Percent Owner |
Informative Sell |
42 |
$13.16 |
$552.72 |
| 2025-12-04 |
Cambrian Biopharma Inc |
10 Percent Owner |
Informative Sell |
5,000 |
$9.06 |
$45.3K |
| 2025-11-14 |
Gerry Christopher |
President & Peo |
Unknown |
5,881 |
$15.70 |
$92.34K |
| 2025-05-21 |
Humer Kristian |
Director |
RSU Award |
19,000 |
$0.32 |
$6.08K |
| 2025-05-21 |
Peyer James |
10 Percent Owner |
RSU Award |
19,000 |
$0.32 |
$6.08K |
| 2025-05-21 |
Holmen Bob |
Director |
RSU Award |
19,000 |
$0.32 |
$6.08K |
| 2025-05-21 |
Cambrian Biopharma Inc |
10 Percent Owner |
RSU Award |
19,000 |
$0.32 |
$6.08K |
| 2025-05-21 |
Ringo William R |
Director |
RSU Award |
19,000 |
$0.32 |
$6.08K |
| 2025-05-21 |
Ricks Thomas G |
Director |
RSU Award |
19,000 |
$0.32 |
$6.08K |
