NASDAQ:ALEC | Insider Transactions | Alector, Inc.

ALEC Insider Transactions

329 retained open-market purchase and sale rows from SEC Forms 3, 4 and 5, newest first. This page shows rows 1–100; provenance stays internal.

ALEC insiders transaction timeline

PurchaseSale
2019-02-11: 12 purchases — ORBIMED ADVISORS LLC, ORBIMED CAPITAL LLC, OrbiMed Capital GP IV LLC and 1 more2019-08-07: 6 sales — ORBIMED ADVISORS LLC, ORBIMED CAPITAL LLC, OrbiMed Capital GP IV LLC2019-08-15: 1 sale — Paul Robert2019-08-19: 3 sales — Paul Robert, King Robert2019-08-20: 2 sales — Paul Robert2019-09-16: 1 sale — Paul Robert2019-09-20: 2 sales — Oney Sabah, Paul Robert2019-10-15: 1 sale — Paul Robert2019-11-15: 2 sales — King Robert, Paul Robert2019-12-03: 1 sale — Yu Calvin2019-12-05: 1 sale — Oney Sabah2019-12-06: 1 sale — Oney Sabah2019-12-09: 1 sale — Oney Sabah2019-12-10: 1 sale — Oney Sabah2019-12-12: 1 sale — Oney Sabah2019-12-13: 1 sale — Paul Robert2019-12-17: 9 sales — ORBIMED ADVISORS LLC, ORBIMED CAPITAL LLC, OrbiMed Capital GP IV LLC2019-12-20: 9 sales — ORBIMED ADVISORS LLC, ORBIMED CAPITAL LLC, OrbiMed Capital GP IV LLC2019-12-23: 9 sales — ORBIMED ADVISORS LLC, ORBIMED CAPITAL LLC, OrbiMed Capital GP IV LLC2019-12-24: 9 sales — ORBIMED ADVISORS LLC, ORBIMED CAPITAL LLC, OrbiMed Capital GP IV LLC2019-12-26: 9 sales — ORBIMED ADVISORS LLC, ORBIMED CAPITAL LLC, OrbiMed Capital GP IV LLC2020-01-09: 9 sales — ORBIMED ADVISORS LLC, ORBIMED CAPITAL LLC, OrbiMed Capital GP IV LLC2020-01-15: 1 sale — Paul Robert2020-01-21: 1 sale — King Robert2020-01-22: 1 sale — King Robert2020-01-23: 3 sales — Oney Sabah, Paul Robert2020-01-27: 1 sale — Oney Sabah2020-01-30: 1 sale — Paul Robert2020-02-03: 1 purchase — Wehner David M.2020-02-04: 3 sales — Oney Sabah, SCHELLER RICHARD H, Yu Calvin2020-02-05: 1 sale — Paul Robert2020-02-06: 2 sales — Yu Calvin, Oney Sabah2020-02-07: 2 sales — Oney Sabah, Yu Calvin2020-02-14: 4 sales — King Robert, Paul Robert2020-03-02: 9 sales — ORBIMED ADVISORS LLC, ORBIMED CAPITAL LLC, OrbiMed Capital GP IV LLC2020-03-13: 4 sales — Paul Robert2020-03-23: 4 sales — ORBIMED ADVISORS LLC, OrbiMed Capital GP IV LLC2020-03-24: 4 sales — ORBIMED ADVISORS LLC, OrbiMed Capital GP IV LLC2020-03-25: 4 sales — ORBIMED ADVISORS LLC, OrbiMed Capital GP IV LLC2020-03-31: 4 sales — ORBIMED ADVISORS LLC, OrbiMed Capital GP IV LLC2020-04-07: 4 sales — ORBIMED ADVISORS LLC, OrbiMed Capital GP IV LLC2020-04-08: 4 sales — ORBIMED ADVISORS LLC, OrbiMed Capital GP IV LLC2020-04-09: 4 sales — ORBIMED ADVISORS LLC, OrbiMed Capital GP IV LLC2020-04-14: 4 sales — ORBIMED ADVISORS LLC, OrbiMed Capital GP IV LLC2020-04-15: 1 sale — Paul Robert2020-04-16: 4 sales — ORBIMED ADVISORS LLC, OrbiMed Capital GP IV LLC2020-05-15: 6 sales — Paul Robert, King Robert2020-06-03: 2 sales — Yu Calvin2020-06-15: 2 sales — Paul Robert2020-06-23: 6 sales — MCGUIRE TERRANCE, Polaris Venture Partners VI, L.P., Polaris Venture Partners Founders' Fund VI, L.P. and 3 more2020-07-15: 2 sales — Paul Robert2021-01-19: 1 sale — Paul Robert2021-01-20: 1 sale — Paul Robert2021-01-25: 1 sale — Paul Robert2021-01-26: 1 sale — Paul Robert2021-02-09: 1 sale — Paul Robert2021-03-09: 1 sale — Paul Robert2021-03-22: 2 sales — Paul Robert2021-03-23: 1 sale — Paul Robert2021-04-07: 2 sales — Paul Robert2021-05-18: 1 sale — Paul Robert2021-05-21: 1 sale — Paul Robert2021-06-02: 1 sale — Yu Calvin2021-06-08: 3 sales — Paul Robert2021-06-15: 1 sale — Paul Robert2021-06-16: 1 sale — Paul Robert2021-07-01: 1 sale — Paul Robert2021-07-02: 5 sales — SCHELLER RICHARD H, Yu Calvin, King Robert and 1 more2021-07-06: 7 sales — Paul Robert, Yu Calvin2021-07-07: 3 sales — Paul Robert2021-08-05: 2 sales — SCHELLER RICHARD H2021-08-09: 2 sales — Paul Robert2021-09-20: 2 sales — Rosenthal Arnon2021-09-21: 2 sales — Rosenthal Arnon2021-09-22: 2 sales — Rosenthal Arnon2021-09-23: 1 sale — Rosenthal Arnon2021-11-04: 4 sales — Rosenthal Arnon2021-11-05: 4 sales — Rosenthal Arnon2021-11-08: 4 sales — Rosenthal Arnon2021-11-09: 4 sales — Rosenthal Arnon2021-11-10: 1 sale — Rosenthal Arnon2021-11-11: 1 sale — Rosenthal Arnon2021-12-01: 1 sale — King Robert2021-12-08: 2 sales — SULIMAN SHEHNAAZ2021-12-09: 2 sales — SULIMAN SHEHNAAZ2021-12-10: 2 sales — SULIMAN SHEHNAAZ2021-12-13: 2 sales — SULIMAN SHEHNAAZ2022-03-01: 1 sale — King Robert2022-06-02: 1 sale — King Robert2022-09-02: 2 sales — Romano Gary, King Robert2022-12-02: 1 sale — Romano Gary2023-03-02: 4 sales — Romano Gary, Kenkare-Mitra Sara, GRASSO MARC and 1 more2023-03-17: 1 sale — Rosenthal Arnon2023-06-02: 4 sales — Kenkare-Mitra Sara, GRASSO MARC, Romano Gary and 1 more2023-09-05: 4 sales — Rosenthal Arnon, Kenkare-Mitra Sara, Romano Gary and 1 more2023-09-11: 6 sales — Polaris Venture Partners VI, L.P., Polaris Venture Partners Founders' Fund VI, L.P., Polaris Venture Management Co. VI, L.L.C. and 3 more2023-12-04: 4 sales — Rosenthal Arnon, Romano Gary, GRASSO MARC and 1 more2024-03-04: 4 sales — Romano Gary, Kenkare-Mitra Sara, GRASSO MARC and 1 more2024-06-03: 4 sales — Rosenthal Arnon, Romano Gary, Kenkare-Mitra Sara and 1 more2024-08-12: 2 sales — Hammond Paula, Yaffe Kristine2024-08-22: 1 sale — SCHELLER RICHARD H2024-09-03: 4 sales — GRASSO MARC, Rosenthal Arnon, Kenkare-Mitra Sara and 1 more2024-12-02: 4 sales — GRASSO MARC, Rosenthal Arnon, Kenkare-Mitra Sara and 1 more2025-03-03: 4 sales — GRASSO MARC, Kenkare-Mitra Sara, Rosenthal Arnon and 1 more2025-06-02: 3 sales — GRASSO MARC, Kenkare-Mitra Sara, Rosenthal Arnon2025-06-20: 1 sale — Yaffe Kristine2025-08-26: 1 sale — Hammond Paula2025-09-02: 4 sales — Wong-Sarad Grace, Berkley Neil Lindsay, Kenkare-Mitra Sara and 1 more2025-12-03: 4 sales — Berkley Neil Lindsay, Wong-Sarad Grace, Kenkare-Mitra Sara and 1 more2025-12-05: 1 sale — Wong-Sarad Grace2026-02-26: 1 sale — Wong-Sarad Grace2026-03-02: 3 sales — Berkley Neil Lindsay, Wong-Sarad Grace, Rosenthal Arnon2026-03-03: 1 sale — Wong-Sarad Grace2026-03-10: 1 sale — Wong-Sarad Grace2026-04-16: 1 sale — Wong-Sarad Grace2026-06-02: 3 sales — Rosenthal Arnon, Wong-Sarad Grace, Berkley Neil Lindsay2026-06-03: 1 sale — Wong-Sarad Grace2019-02-112026-06-03
Insider profileRoleDateTransactionSharesPrice
Wong-Sarad GracePrincipal Accounting Officer2026-06-03Sale3,475.0$1.88
Rosenthal ArnonChief Executive Officer2026-06-02Sale87,216.0$1.97
Wong-Sarad GracePrincipal Accounting Officer2026-06-02Sale5,709.0$1.97
Berkley Neil LindsayCFO & Chief Business Officer2026-06-02Sale19,360.0$1.97
Wong-Sarad GracePrincipal Accounting Officer2026-04-16Sale1,820.0$2.65
Wong-Sarad GracePrincipal Accounting Officer2026-03-10Sale1,000.0$2.65
Wong-Sarad GracePrincipal Accounting Officer2026-03-03Sale3,367.0$2.08
Berkley Neil LindsayCFO & Chief Business Officer2026-03-02Sale29,649.0$2.12
Wong-Sarad GracePrincipal Accounting Officer2026-03-02Sale8,071.0$2.12
Rosenthal ArnonChief Executive Officer2026-03-02Sale81,864.0$2.12
Wong-Sarad GracePrincipal Accounting Officer2026-02-26Sale4,079.0$2.5
Wong-Sarad GracePrincipal Accounting Officer2025-12-05Sale4,753.0$1.21
Berkley Neil LindsayChief Bus Ofcr & Interim CFO2025-12-03Sale37,261.0$1.12
Wong-Sarad GracePrincipal Accounting Officer2025-12-03Sale8,056.0$1.12
Kenkare-Mitra SaraPresident and Head of R&D2025-12-03Sale41,687.0$1.12
Rosenthal ArnonChief Executive Officer2025-12-03Sale104,347.0$1.12
Wong-Sarad GracePrincipal Accounting Officer2025-09-02Sale5,910.0$2.5
Berkley Neil LindsayPrincipal Financial Officer2025-09-02Sale15,842.0$2.5
Kenkare-Mitra SaraPresident and Head of R&D2025-09-02Sale23,638.0$2.5
Rosenthal ArnonChief Executive Officer2025-09-02Sale51,562.0$2.5
Hammond PaulaDirector2025-08-26Sale14,000.0$2.36
Yaffe KristineDirector2025-06-20Sale1,000.0$1.44
GRASSO MARCChief Financial Officer2025-06-02Sale16,488.0$1.34
Kenkare-Mitra SaraPresident and Head of R&D2025-06-02Sale23,890.0$1.34
Rosenthal ArnonChief Executive Officer2025-06-02Sale52,087.0$1.34
GRASSO MARCChief Financial Officer2025-03-03Sale18,091.0$1.47
Kenkare-Mitra SaraPresident and Head of R&D2025-03-03Sale29,073.0$1.47
Rosenthal ArnonChief Executive Officer2025-03-03Sale40,330.0$1.47
Romano GaryChief Medical Officer2025-03-03Sale16,306.0$1.47
GRASSO MARCChief Financial Officer2024-12-02Sale16,489.0$2.52
Rosenthal ArnonChief Executive Officer2024-12-02Sale52,172.0$2.52
Kenkare-Mitra SaraPresident and Head of R&D2024-12-02Sale26,500.0$2.52
Romano GaryChief Medical Officer2024-12-02Sale14,892.0$2.52
GRASSO MARCChief Financial Officer2024-09-03Sale7,297.0$4.88
Rosenthal ArnonChief Executive Officer2024-09-03Sale26,499.0$4.88
Kenkare-Mitra SaraPresident and Head of R&D2024-09-03Sale13,926.0$4.88
Romano GaryChief Medical Officer2024-09-03Sale8,478.0$4.88
SCHELLER RICHARD HDirector2024-08-22Sale44,250.0$5.16
Hammond PaulaDirector2024-08-12Sale10,500.0$5.06
Yaffe KristineDirector2024-08-12Sale5,000.0$5.06
Rosenthal ArnonChief Executive Officer2024-06-03Sale25,135.0$4.8
Romano GaryChief Medical Officer2024-06-03Sale8,040.0$4.8
Kenkare-Mitra SaraPresident and Head of R&D2024-06-03Sale13,206.0$4.8
GRASSO MARCChief Financial Officer2024-06-03Sale6,920.0$4.8
Romano GaryChief Medical Officer2024-03-04Sale6,001.0$6.92
Kenkare-Mitra SaraPresident and Head of R&D2024-03-04Sale10,169.0$6.92
GRASSO MARCChief Financial Officer2024-03-04Sale5,716.0$6.92
Rosenthal ArnonChief Executive Officer2024-03-04Sale18,837.0$6.92
Rosenthal ArnonChief Executive Officer2023-12-04Sale23,831.0$5.56
Romano GaryChief Medical Officer2023-12-04Sale5,035.0$5.56
GRASSO MARCChief Financial Officer2023-12-04Sale4,574.0$5.56
Kenkare-Mitra SaraPresident and Head of R&D2023-12-04Sale12,519.0$5.56
Polaris Venture Partners VI, L.P.TenPercentOwner2023-09-11Sale500,000.0$6.0
Polaris Venture Partners Founders' Fund VI, L.P.TenPercentOwner2023-09-11Sale500,000.0$6.0
Polaris Venture Management Co. VI, L.L.C.TenPercentOwner2023-09-11Sale500,000.0$6.0
Polaris Venture Partners VI (AIV), L.P.TenPercentOwner2023-09-11Sale500,000.0$6.0
Polaris Venture Partners VI (AIV-B), L.P.TenPercentOwner2023-09-11Sale500,000.0$6.0
MCGUIRE TERRANCEDirector,TenPercentOwner2023-09-11Sale500,000.0$6.0
Rosenthal ArnonChief Executive Officer2023-09-05Sale5,647.0$5.19
Kenkare-Mitra SaraPresident and Head of R&D2023-09-05Sale6,214.0$5.19
Romano GaryChief Medical Officer2023-09-05Sale2,771.0$5.19
GRASSO MARCChief Financial Officer2023-09-05Sale1,114.0$5.19
Kenkare-Mitra SaraPresident and Head of R&D2023-06-02Sale4,092.0$6.9
GRASSO MARCChief Financial Officer2023-06-02Sale1,050.0$6.9
Romano GaryChief Medical Officer2023-06-02Sale2,617.0$6.9
Rosenthal ArnonChief Executive Officer2023-06-02Sale5,255.0$6.9
Rosenthal ArnonChief Executive Officer2023-03-17Sale15,186.0$6.22
Romano GaryChief Medical Officer2023-03-02Sale3,238.0$8.32
Kenkare-Mitra SaraPresident and Head of R&D2023-03-02Sale10,124.0$8.32
GRASSO MARCChief Financial Officer2023-03-02Sale1,291.0$8.32
Rosenthal ArnonChief Executive Officer2023-03-02Sale5,849.0$8.32
Romano GaryChief Medical Officer2022-12-02Sale2,145.0$8.71
Romano GaryChief Medical Officer2022-09-02Sale2,177.0$10.62
King RobertChief Development Officer2022-09-02Sale176.0$10.62
King RobertChief Development Officer2022-06-02Sale177.0$8.71
King RobertChief Development Officer2022-03-01Sale287.0$15.57
SULIMAN SHEHNAAZPresident and COO2021-12-13Sale10,898.0$21.73
SULIMAN SHEHNAAZPresident and COO2021-12-13Sale64,102.0$21.16
SULIMAN SHEHNAAZPresident and COO2021-12-10Sale8,874.0$22.33
SULIMAN SHEHNAAZPresident and COO2021-12-10Sale66,126.0$21.69
SULIMAN SHEHNAAZPresident and COO2021-12-09Sale2,643.0$23.4
SULIMAN SHEHNAAZPresident and COO2021-12-09Sale72,357.0$22.8
SULIMAN SHEHNAAZPresident and COO2021-12-08Sale38,489.0$23.01
SULIMAN SHEHNAAZPresident and COO2021-12-08Sale36,511.0$22.56
King RobertChief Development Officer2021-12-01Sale250.0$20.09
Rosenthal ArnonChief Executive Officer2021-11-11Sale55,000.0$25.0
Rosenthal ArnonChief Executive Officer2021-11-10Sale55,000.0$25.0
Rosenthal ArnonChief Executive Officer2021-11-09Sale15,000.0$25.0
Rosenthal ArnonChief Executive Officer2021-11-09Sale15,000.0$25.0
Rosenthal ArnonChief Executive Officer2021-11-09Sale15,000.0$25.0
Rosenthal ArnonChief Executive Officer2021-11-09Sale55,000.0$25.0
Rosenthal ArnonChief Executive Officer2021-11-08Sale15,000.0$25.0
Rosenthal ArnonChief Executive Officer2021-11-08Sale15,000.0$25.0
Rosenthal ArnonChief Executive Officer2021-11-08Sale15,000.0$25.0
Rosenthal ArnonChief Executive Officer2021-11-08Sale55,000.0$25.0
Rosenthal ArnonChief Executive Officer2021-11-05Sale15,000.0$25.0
Rosenthal ArnonChief Executive Officer2021-11-05Sale15,000.0$25.0
Rosenthal ArnonChief Executive Officer2021-11-05Sale15,000.0$25.0
Rosenthal ArnonChief Executive Officer2021-11-05Sale55,000.0$25.0
Rosenthal ArnonChief Executive Officer2021-11-04Sale15,000.0$25.0