List of insiders holdings for Alector Inc.:
- Shares directly owned by the insider.
- Shares indirectly owned by the insider.
- Total shares owned by the insider (sum of shares directly and indirectly owned).
- Total market value if available.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
| # | Insider Holder Name | Report Date Time |
Shares Owned Directly Indirectly |
Total Shares Owned |
Filing |
| 1 | MCGUIRE TERRANCE Director 10% Owner |
2023-09-13 16:29:03 | 54,996 10,893,216 |
10,948,212 | Form 4 |
| 2 | Polaris Venture Management Co. VI L.L.C. Polaris Venture Partners VI (AIV) L.P. Polaris Venture Partners Founders' Fund VI L.P. Polaris Venture Partners VI L.P. Polaris Venture Partners VI (AIV-B) L.P. 10% Owner |
2024-11-12 19:21:57 | 9,977,877 0 |
9,977,877 | Form 13G |
| 3 | Rosenthal Arnon Chief Executive Officer |
2025-06-04 16:18:34 | 2,414,657 3,930,375 |
6,345,032 | Form 4 |
| 4 | ORBIMED ADVISORS LLC OrbiMed Capital GP IV LLC ORBIMED CAPITAL LLC 10% Owner |
2020-07-16 17:12:51 | 2,725,313 0 |
2,725,313 | Form 13D |
| 5 | ORBIMED ADVISORS LLC OrbiMed Capital GP IV LLC 10% Owner |
2020-07-16 17:12:51 | 2,725,313 0 |
2,725,313 | Form 13D |
| 6 | Gerngross Tillman U. Director |
2023-06-15 16:04:03 | 2,656,679 0 |
2,656,679 | Form 4 |
| 7 | SULIMAN SHEHNAAZ President and COO |
2021-12-14 20:23:09 | 787,972 0 |
787,972 | Form 4 |
| 8 | King Robert Chief Development Officer |
2022-10-04 20:05:59 | 565,255 0 |
565,255 | Form 4 |
| 9 | Kenkare-Mitra Sara President and Head of R&D |
2025-06-04 16:19:41 | 512,252 0 |
512,252 | Form 4 |
| 10 | Paul Robert Chief Medical Officer |
2021-08-11 18:23:30 | 431,019 0 |
431,019 | Form 4 |
| 11 | Romano Gary Chief Medical Officer |
2025-03-05 16:05:05 | 332,977 0 |
332,977 | Form 4 |
| 12 | GRASSO MARC Chief Financial Officer |
2025-06-04 16:21:21 | 296,072 0 |
296,072 | Form 4 |
| 13 | Yu Calvin Vice President, Finance |
2021-07-07 19:38:23 | 220,498 0 |
220,498 | Form 4 |
| 14 | LAVIGNE LOUIS J JR Director |
2025-06-12 18:05:06 | 108,859 10,552 |
119,411 | Form 4 |
| 15 | Wehner David M. Director |
2024-06-12 16:46:05 | 115,330 0 |
115,330 | Form 4 |
| 16 | Oney Sabah Chief Business Officer |
2020-10-05 16:31:00 | 109,689 0 |
109,689 | Form 4 |
| 17 | Yaffe Kristine Director |
2025-06-12 18:05:19 | 105,859 0 |
105,859 | Form 4 |
| 18 | SCHELLER RICHARD H Director |
2025-06-12 18:05:07 | 104,816 0 |
104,816 | Form 4 |
| 19 | GAROFALO ELIZABETH A. Director |
2025-06-12 18:05:09 | 99,400 0 |
99,400 | Form 4 |
| 20 | Hammond Paula Director |
2025-06-12 18:05:20 | 98,359 0 |
98,359 | Form 4 |
| 21 | Altmeyer Mark Director |
2025-06-12 18:05:03 | 79,400 0 |
79,400 | Form 4 |
| 22 | DESOUZA ERROL B Director |
2025-06-12 18:05:05 | 79,400 0 |
79,400 | Form 4 |
| 23 | GORDON CARL L Director 10% Owner |
2019-05-14 17:45:25 | 20,000 0 |
20,000 | Form 4 |
| 24 | Rubinstein Linda M Interim Chief Financial Ofcr |
2021-09-09 16:31:18 | 0 0 |
0 | Form 3 |