ALEC Alector, Inc.
Nasdaq · SEC CIK 1653087 · EDGAR
- Bought, last 12 months
- $0 0 purchases by 0 insiders
- Sold, last 12 months
- $1.02M 18 sales by 4 insiders
- Filings on record
- 169 since 2021-07-06, latest 2026-09-04 17:45
BoughtSold
Most active insiders, 12 months
| Insider | Title | Bought | Sold |
|---|---|---|---|
| Rosenthal Arnon | CEO, Dir | — | $656.1K |
| Berkley Neil Lindsay | Chief Bus Ofcr, Interim CFO | — | $220.8K |
| Wong-Sarad Grace | Principal Accounting Off | — | $99.0K |
| Kenkare-Mitra Sara | Pres, Head of R, D | — | $46.7K |
| GAROFALO ELIZABETH A. | Dir | — | — |
| Hammond Paula | Dir | — | — |
| Yaffe Kristine | Dir | — | — |
| Altmeyer Mark | Dir | — | — |
| SCHELLER RICHARD H | Dir | — | — |
| LAVIGNE LOUIS J JR | Dir | — | — |
Transactions 182
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M | 2026-09-04 17:45 | 2026-09-02+ | ALEC | Wong-Sarad Grace | Principal Accounting Off | S - Sale | $2.61 | -9,446 | 106.0K | -8% | -$24.7K |
| 2026-09-04 17:45 | 2026-09-03 | ALEC | Berkley Neil Lindsay | CFO, Chief Business Off | S - Sale | $2.66 | -29.3K | 350.6K | -8% | -$77.9K | |
| 2026-09-04 17:45 | 2026-09-03 | ALEC | Rosenthal Arnon | CEO, Dir | S - Sale | $2.66 | -72.6K | 2.29M | -3% | -$193.5K | |
| MI | 2026-08-21 18:00 | 2026-08-19 | ALEC | Rosenthal Arnon | CEO, Dir | G - Gift | $0.00 | 0 | 1.00M | New | $0 |
| 2026-07-09 16:05 | 2026-07-09 | ALEC | Wong-Sarad Grace | Principal Accounting Off | A - Grant | $0.00 | +20.0K | 115.5K | +21% | $0 | |
| D | 2026-06-17 16:05 | 2026-06-17 | ALEC | Yaffe Kristine | Dir | A - Grant | $0.00 | +28.7K | 124.1K | +30% | $0 |
| D | 2026-06-17 16:05 | 2026-06-17 | ALEC | SCHELLER RICHARD H | Dir | A - Grant | $0.00 | +28.7K | 134.9K | +27% | $0 |
| D | 2026-06-17 16:05 | 2026-06-17 | ALEC | Hammond Paula | Dir | A - Grant | $0.00 | +28.7K | 103.6K | +38% | $0 |
| D | 2026-06-17 16:05 | 2026-06-17 | ALEC | GAROFALO ELIZABETH A. | Dir | A - Grant | $0.00 | +28.7K | 118.7K | +32% | $0 |
| D | 2026-06-17 16:05 | 2026-06-17 | ALEC | Altmeyer Mark | Dir | A - Grant | $0.00 | +28.7K | 98.7K | +41% | $0 |
| D | 2026-06-17 16:05 | 2026-06-17 | ALEC | DESOUZA ERROL B | Dir | A - Grant | $0.00 | +28.7K | 98.7K | +41% | $0 |
| D | 2026-06-17 16:05 | 2026-06-17 | ALEC | LAVIGNE LOUIS J JR | Dir | A - Grant | $0.00 | +28.7K | 128.1K | +29% | $0 |
| 2026-06-03 19:08 | 2026-06-01 | ALEC | SCHELLER RICHARD H | Dir | A - Grant | $0.00 | +10.8K | 106.2K | +11% | $0 | |
| 2026-06-03 17:30 | 2026-06-02 | ALEC | Rosenthal Arnon | CEO, Dir | S - Sale | $1.97 | -87.2K | 2.37M | -4% | -$172.2K | |
| M | 2026-06-03 17:30 | 2026-06-02+ | ALEC | Wong-Sarad Grace | Principal Accounting Off | S - Sale | $1.94 | -9,184 | 95.5K | -9% | -$17.8K |
| 2026-06-03 17:30 | 2026-06-02 | ALEC | Berkley Neil Lindsay | CFO, Chief Business Off | S - Sale | $1.97 | -19.4K | 379.9K | -5% | -$38.2K | |
| T | 2026-04-17 17:30 | 2026-04-16 | ALEC | Wong-Sarad Grace | Principal Accounting Off | S - Sale | $2.65 | -1,820 | 104.6K | -2% | -$4,823 |
| 2026-03-13 | 2026-03-13 | ALEC | Rosenthal Arnon | CEO, Dir | A - Grant | $0.00 | +116.2K | 2.45M | +5% | $0 | |
| 2026-03-13 | 2026-03-15 | ALEC | Berkley Neil Lindsay | CFO, Chief Business Off | A - Grant | $0.00 | +54.6K | 399.3K | +16% | $0 | |
| T | 2026-03-12 | 2026-03-10 | ALEC | Wong-Sarad Grace | Principal Accounting Off | S - Sale | $2.65 | -1,000 | 106.5K | -0.9% | -$2,650 |
| T | 2026-03-03 | 2026-03-03 | ALEC | Wong-Sarad Grace | Principal Accounting Off | S - Sale | $2.08 | -3,367 | 107.5K | -3% | -$7,003 |
| 2026-03-03 | 2026-03-02 | ALEC | Berkley Neil Lindsay | CFO, Chief Business Off | S - Sale | $2.12 | -29.6K | 344.7K | -8% | -$62.9K | |
| 2026-03-03 | 2026-03-02 | ALEC | Wong-Sarad Grace | Principal Accounting Off | S - Sale | $2.12 | -8,071 | 110.8K | -7% | -$17.1K | |
| 2026-03-03 | 2026-03-02 | ALEC | Rosenthal Arnon | CEO, Dir | S - Sale | $2.12 | -81.9K | 2.34M | -3% | -$173.6K | |
| T | 2026-02-26 | 2026-02-26 | ALEC | Wong-Sarad Grace | Principal Accounting Off | S - Sale | $2.50 | -4,079 | 118.9K | -3% | -$10.2K |
| 2025-12-08 | 2025-12-05 | ALEC | Wong-Sarad Grace | Principal Accounting Off | S - Sale | $1.21 | -4,753 | 123.0K | -4% | -$5,751 | |
| 2025-12-03 | 2025-12-03 | ALEC | Rosenthal Arnon | CEO, Dir | S - Sale | $1.12 | -104.3K | 2.42M | -4% | -$116.9K | |
| 2025-12-03 | 2025-12-03 | ALEC | Berkley Neil Lindsay | Chief Bus Ofcr, Interim CFO | S - Sale | $1.12 | -37.3K | 374.3K | -9% | -$41.7K | |
| 2025-12-03 | 2025-12-03 | ALEC | Wong-Sarad Grace | Principal Accounting Off | S - Sale | $1.12 | -8,056 | 127.7K | -6% | -$9,023 | |
| 2025-12-03 | 2025-12-03 | ALEC | Kenkare-Mitra Sara | Pres, Head of R, D | S - Sale | $1.12 | -41.7K | 501.7K | -8% | -$46.7K | |
| D | 2025-11-12 | 2025-11-10 | ALEC | Rosenthal Arnon | CEO, Dir | A - Grant | $0.00 | +174.2K | 2.52M | +7% | $0 |
| D | 2025-11-12 | 2025-11-10 | ALEC | Berkley Neil Lindsay | Chief Bus Ofcr, Interim CFO | A - Grant | $0.00 | +65.0K | 411.6K | +19% | $0 |
| D | 2025-11-12 | 2025-11-10 | ALEC | Wong-Sarad Grace | Principal Accounting Off | A - Grant | $0.00 | +32.3K | 135.8K | +31% | $0 |
| 2025-09-04 | 2025-09-02 | ALEC | Berkley Neil Lindsay | Principal Financial Off | S - Sale | $2.50 | -15.8K | 346.6K | -4% | -$39.6K | |
| 2025-09-04 | 2025-09-02 | ALEC | Rosenthal Arnon | CEO, Dir | S - Sale | $2.50 | -51.6K | 2.35M | -2% | -$128.9K | |
| 2025-09-04 | 2025-09-02 | ALEC | Kenkare-Mitra Sara | Pres, Head of R, D | S - Sale | $2.50 | -23.6K | 543.3K | -4% | -$59.1K | |
| 2025-09-04 | 2025-09-02 | ALEC | Wong-Sarad Grace | Principal Accounting Off | S - Sale | $2.50 | -5,910 | 103.4K | -5% | -$14.8K | |
| 2025-08-27 | 2025-08-26 | ALEC | Hammond Paula | Dir | S - Sale | $2.36 | -14.0K | 74.9K | -16% | -$33.0K | |
| D | 2025-07-01 | 2025-07-01 | ALEC | Rosenthal Arnon | CEO, Dir | A - Grant | $0.00 | +137.1K | 2.55M | +6% | $0 |
| D | 2025-07-01 | 2025-07-01 | ALEC | Kenkare-Mitra Sara | Pres, Head of R, D | A - Grant | $0.00 | +54.7K | 567.0K | +11% | $0 |
| T | 2025-06-23 | 2025-06-20 | ALEC | Yaffe Kristine | Dir | S - Sale | $1.44 | -1,000 | 95.4K | -1% | -$1,440 |
| D | 2025-06-12 | 2025-06-11 | ALEC | SCHELLER RICHARD H | Dir | A - Grant | $0.00 | +28.7K | 95.4K | +43% | $0 |
| D | 2025-06-12 | 2025-06-11 | ALEC | LAVIGNE LOUIS J JR | Dir | A - Grant | $0.00 | +28.7K | 99.4K | +41% | $0 |
| D | 2025-06-12 | 2025-06-11 | ALEC | Altmeyer Mark | Dir | A - Grant | $0.00 | +28.7K | 70.0K | +70% | $0 |
| D | 2025-06-12 | 2025-06-11 | ALEC | Yaffe Kristine | Dir | A - Grant | $0.00 | +28.7K | 96.4K | +42% | $0 |
| D | 2025-06-12 | 2025-06-11 | ALEC | DESOUZA ERROL B | Dir | A - Grant | $0.00 | +28.7K | 70.0K | +70% | $0 |
| D | 2025-06-12 | 2025-06-11 | ALEC | GAROFALO ELIZABETH A. | Dir | A - Grant | $0.00 | +28.7K | 90.0K | +47% | $0 |
| D | 2025-06-12 | 2025-06-11 | ALEC | Hammond Paula | Dir | A - Grant | $0.00 | +28.7K | 88.9K | +48% | $0 |
| 2025-06-04 | 2025-06-02 | ALEC | GRASSO MARC | CFO | S - Sale | $1.34 | -16.5K | 296.1K | -5% | -$22.1K | |
| 2025-06-04 | 2025-06-02 | ALEC | Rosenthal Arnon | CEO, Dir | S - Sale | $1.34 | -52.1K | 2.41M | -2% | -$69.8K | |
| 2025-06-04 | 2025-06-02 | ALEC | Kenkare-Mitra Sara | Pres, Head of R, D | S - Sale | $1.34 | -23.9K | 512.3K | -4% | -$32.0K | |
| 2025-05-02 | 2025-05-02 | ALEC | SCHELLER RICHARD H | Dir | A - Grant | $0.00 | +15.8K | 66.7K | +31% | $0 | |
| 2025-03-05 | 2025-03-03 | ALEC | Romano Gary | Chief Medical Off | S - Sale | $1.47 | -16.3K | 333.0K | -5% | -$24.0K | |
| 2025-03-05 | 2025-03-03 | ALEC | Kenkare-Mitra Sara | Pres, Head of R, D | S - Sale | $1.47 | -29.1K | 536.1K | -5% | -$42.7K | |
| 2025-03-05 | 2025-03-03 | ALEC | GRASSO MARC | CFO | S - Sale | $1.47 | -18.1K | 312.6K | -5% | -$26.6K | |
| 2025-03-05 | 2025-03-03 | ALEC | Rosenthal Arnon | CEO, Dir | S - Sale | $1.47 | -40.3K | 2.47M | -2% | -$59.3K | |
| 2024-12-03 | 2024-12-02 | ALEC | Kenkare-Mitra Sara | Pres, Head of R, D | S - Sale | $2.52 | -26.5K | 565.2K | -4% | -$66.8K | |
| 2024-12-03 | 2024-12-02 | ALEC | Romano Gary | Chief Medical Off | S - Sale | $2.52 | -14.9K | 349.3K | -4% | -$37.5K | |
| 2024-12-03 | 2024-12-02 | ALEC | Rosenthal Arnon | CEO, Dir | S - Sale | $2.52 | -52.2K | 2.51M | -2% | -$131.5K | |
| 2024-12-03 | 2024-12-02 | ALEC | GRASSO MARC | CFO | S - Sale | $2.52 | -16.5K | 330.7K | -5% | -$41.6K | |
| 2024-10-10 | 2024-08-02 | ALEC | SCHELLER RICHARD H | Dir | A - Grant | $0.00 | +15.8K | 50.8K | +45% | $0 | |
| 2024-10-02 | 2024-10-01 | ALEC | Kenkare-Mitra Sara | Pres, Head of R, D | A - Grant | $0.00 | +300.0K | 591.7K | +103% | $0 | |
| 2024-10-02 | 2024-10-01 | ALEC | GRASSO MARC | CFO | A - Grant | $0.00 | +216.4K | 347.1K | +166% | $0 | |
| 2024-10-02 | 2024-10-01 | ALEC | Rosenthal Arnon | CEO, Dir | A - Grant | $0.00 | +610.5K | 2.56M | +31% | $0 | |
| 2024-10-02 | 2024-10-01 | ALEC | Romano Gary | Chief Medical Off | A - Grant | $0.00 | +184.4K | 364.2K | +103% | $0 | |
| 2024-09-04 | 2024-09-03 | ALEC | GRASSO MARC | CFO | S - Sale | $4.88 | -7,297 | 130.7K | -5% | -$35.6K | |
| 2024-09-04 | 2024-09-03 | ALEC | Romano Gary | Chief Medical Off | S - Sale | $4.88 | -8,478 | 179.8K | -5% | -$41.4K | |
| 2024-09-04 | 2024-09-03 | ALEC | Kenkare-Mitra Sara | Pres, Head of R, D | S - Sale | $4.88 | -13.9K | 291.7K | -5% | -$68.0K | |
| 2024-09-04 | 2024-09-03 | ALEC | Rosenthal Arnon | CEO, Dir | S - Sale | $4.88 | -26.5K | 1.95M | -1% | -$129.3K | |
| 2024-08-23 | 2024-08-22 | ALEC | SCHELLER RICHARD H | Dir | S - Sale | $5.16 | -44.2K | 35.0K | -56% | -$228.3K | |
| T | 2024-08-13 | 2024-08-12 | ALEC | Yaffe Kristine | Dir | S - Sale | $5.06 | -5,000 | 67.7K | -7% | -$25.3K |
| T | 2024-08-13 | 2024-08-12 | ALEC | Hammond Paula | Dir | S - Sale | $5.06 | -10.5K | 60.2K | -15% | -$53.1K |
| 2024-06-12 | 2024-06-12 | ALEC | GAROFALO ELIZABETH A. | Dir | A - Grant | $0.00 | +35.0K | 61.2K | +133% | $0 | |
| 2024-06-12 | 2024-06-12 | ALEC | Hammond Paula | Dir | A - Grant | $0.00 | +35.0K | 70.7K | +98% | $0 | |
| 2024-06-12 | 2024-06-12 | ALEC | Yaffe Kristine | Dir | A - Grant | $0.00 | +35.0K | 72.7K | +93% | $0 | |
| 2024-06-12 | 2024-06-12 | ALEC | SCHELLER RICHARD H | Dir | A - Grant | $0.00 | +35.0K | 79.2K | +79% | $0 | |
| 2024-06-12 | 2024-06-12 | ALEC | Wehner David M. | Dir | A - Grant | $0.00 | +35.0K | 115.3K | +44% | $0 | |
| 2024-06-12 | 2024-06-12 | ALEC | LAVIGNE LOUIS J JR | Dir | A - Grant | $0.00 | +35.0K | 70.7K | +98% | $0 | |
| 2024-06-04 | 2024-06-03 | ALEC | Rosenthal Arnon | CEO, Dir | S - Sale | $4.80 | -25.1K | 1.98M | -1% | -$120.6K | |
| 2024-06-04 | 2024-06-03 | ALEC | GRASSO MARC | CFO | S - Sale | $4.80 | -6,920 | 138.0K | -5% | -$33.2K | |
| 2024-06-04 | 2024-06-03 | ALEC | Kenkare-Mitra Sara | Pres, Head of R, D | S - Sale | $4.80 | -13.2K | 305.6K | -4% | -$63.4K | |
| 2024-06-04 | 2024-06-03 | ALEC | Romano Gary | Chief Medical Off | S - Sale | $4.80 | -8,040 | 188.3K | -4% | -$38.6K | |
| I | 2024-05-31 | 2024-05-29 | ALEC | Polaris Venture Management Co. VI, L.L.C. | 10% | J - Other | $0.00 | -500.0K | 9.85M | -5% | $0 |
| M | 2024-05-31 | 2024-05-29 | ALEC | Polaris Venture Management Co. VI, L.L.C. | 10% | J - Other | $0.00 | 0 | 0 | New | $0 |
| I | 2024-05-02 | 2024-04-30 | ALEC | Polaris Venture Partners VI (AIV), L.P. | 10% | J - Other | $0.00 | -500.0K | 10.35M | -5% | $0 |
| M | 2024-05-02 | 2024-04-30 | ALEC | Polaris Venture Partners VI (AIV), L.P. | 10% | J - Other | $0.00 | 0 | 98.5K | New | $0 |
| D | 2024-03-21 | 2024-03-19 | ALEC | Altmeyer Mark | Dir | A - Grant | $0.00 | +41.2K | 41.2K | New | $0 |
| D | 2024-03-21 | 2024-03-19 | ALEC | DESOUZA ERROL B | Dir | A - Grant | $0.00 | +41.2K | 41.2K | New | $0 |
| 2024-03-05 | 2024-03-04 | ALEC | Kenkare-Mitra Sara | Pres, Head of R, D | S - Sale | $6.92 | -10.2K | 318.8K | -3% | -$70.4K | |
| 2024-03-05 | 2024-03-04 | ALEC | GRASSO MARC | CFO | S - Sale | $6.92 | -5,716 | 145.0K | -4% | -$39.6K | |
| 2024-03-05 | 2024-03-04 | ALEC | Rosenthal Arnon | CEO, Dir | S - Sale | $6.92 | -18.8K | 2.00M | -0.9% | -$130.4K | |
| 2024-03-05 | 2024-03-04 | ALEC | Romano Gary | Chief Medical Off | S - Sale | $6.92 | -6,001 | 196.3K | -3% | -$41.5K | |
| 2024-02-14 | 2023-07-15 | ALEC | SCHELLER RICHARD H | Dir | A - Grant | $0.00 | +8,541 | 44.2K | +24% | $0 | |
| 2023-12-06 | 2023-12-04 | ALEC | Kenkare-Mitra Sara | Pres, Head of R, D | S - Sale | $5.56 | -12.5K | 329.0K | -4% | -$69.6K | |
| 2023-12-06 | 2023-12-04 | ALEC | Romano Gary | Chief Medical Off | S - Sale | $5.56 | -5,035 | 202.3K | -2% | -$28.0K | |
| 2023-12-06 | 2023-12-04 | ALEC | GRASSO MARC | CFO | S - Sale | $5.56 | -4,574 | 150.7K | -3% | -$25.4K | |
| 2023-12-06 | 2023-12-05 | ALEC | GAROFALO ELIZABETH A. | Dir | G - Gift | $0.00 | -9,459 | 26.2K | -26% | $0 | |
| 2023-12-06 | 2023-12-04 | ALEC | Rosenthal Arnon | CEO, Dir | S - Sale | $5.56 | -23.8K | 2.02M | -1% | -$132.5K | |
| D | 2023-10-03 | 2023-10-01 | ALEC | GRASSO MARC | CFO | A - Grant | $0.00 | +123.0K | 155.2K | +381% | $0 |
| D | 2023-10-03 | 2023-10-01 | ALEC | Kenkare-Mitra Sara | Pres, Head of R, D | A - Grant | $0.00 | +163.6K | 341.5K | +92% | $0 |
Purchase Sale Sale after option exercise All abbreviations