Insider Transactions last 24 months for Alector, Inc. - NSDQ: ALEC
Transactions
All
Buy
Sell
Option Exercise
Filer's Name
Relationship/
Trans.
Trans. Type
Ownership Type
Security Type
Shares
Price
Trans.
Total Shares Owned
Berkley Neil Lindsay CFO & Chief Business Officer 03/15/2026 AA Direct COM 54,600 $0.00 $0.00 399,260 Rosenthal Arnon Chief Executive Officer 03/13/2026 AA Direct COM 116,246 $0.00 $0.00 2,454,422 Wong-Sarad Grace Principal Accounting Officer 03/10/2026 DS Direct COM 1,000 $2.65 $2,650.00 106,465 Wong-Sarad Grace Principal Accounting Officer 03/03/2026 DS Direct COM 3,367 $2.08 $7,012.11 107,465 Rosenthal Arnon Chief Executive Officer 03/02/2026 DS Direct COM 81,864 $2.12 $173,821.83 2,338,176 Wong-Sarad Grace Principal Accounting Officer 03/02/2026 DS Direct COM 8,071 $2.12 $17,137.96 110,832 Berkley Neil Lindsay CFO & Chief Business Officer 03/02/2026 DS Direct COM 29,649 $2.12 $62,953.72 344,660 Wong-Sarad Grace Principal Accounting Officer 02/26/2026 DS Direct COM 4,079 $2.50 $10,197.50 118,903 Wong-Sarad Grace Principal Accounting Officer 12/05/2025 DS Direct COM 4,753 $1.21 $5,751.13 122,982 Rosenthal Arnon Chief Executive Officer 12/03/2025 DS Direct COM 104,347 $1.12 $116,826.90 2,420,040 Kenkare-Mitra Sara President and Head of R&D 12/03/2025 DS Direct COM 41,687 $1.12 $46,672.77 501,652 Wong-Sarad Grace Principal Accounting Officer 12/03/2025 DS Direct COM 8,056 $1.12 $9,018.69 127,735 Berkley Neil Lindsay Chief Bus Ofcr & Interim CFO 12/03/2025 DS Direct COM 37,261 $1.12 $41,717.42 374,309 Rosenthal Arnon Chief Executive Officer 11/10/2025 AA Direct COM 174,167 $0.00 $0.00 2,524,387 Wong-Sarad Grace Principal Accounting Officer 11/10/2025 AA Direct COM 32,343 $0.00 $0.00 135,791 Berkley Neil Lindsay Chief Bus Ofcr & Interim CFO 11/10/2025 AA Direct COM 65,000 $0.00 $0.00 411,570 Rosenthal Arnon Chief Executive Officer 09/02/2025 DS Direct COM 51,562 $2.50 $128,740.00 2,350,220 Kenkare-Mitra Sara President and Head of R&D 09/02/2025 DS Direct COM 23,638 $2.50 $59,019.36 543,339 Berkley Neil Lindsay Principal Financial Officer 09/02/2025 DS Direct COM 15,842 $2.50 $39,554.31 346,570 Wong-Sarad Grace Principal Accounting Officer 09/02/2025 DS Direct COM 5,910 $2.50 $14,756.09 103,448 Hammond Paula Director 08/26/2025 DS Direct COM 14,000 $2.36 $32,998.00 74,909 Rosenthal Arnon Chief Executive Officer 07/01/2025 AA Direct COM 137,125 $0.00 $0.00 2,551,782 Kenkare-Mitra Sara President and Head of R&D 07/01/2025 AA Direct COM 54,725 $0.00 $0.00 566,977 Yaffe Kristine Director 06/20/2025 DS Direct COM 1,000 $1.44 $1,440.00 95,409 Altmeyer Mark Director 06/11/2025 AA Direct COM 28,700 $0.00 $0.00 69,950
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Filer's Name
Relationship/
Trans.
Trans. Type
Ownership Type
Security Type
Shares
Price
Trans.
Total Shares Owned
Berkley Neil Lindsay CFO & Chief Business Officer 03/15/2026 AA Direct COM 54,600 $0.00 $0.00 399,260 Rosenthal Arnon Chief Executive Officer 03/13/2026 AA Direct COM 116,246 $0.00 $0.00 2,454,422 Rosenthal Arnon Chief Executive Officer 11/10/2025 AA Direct COM 174,167 $0.00 $0.00 2,524,387 Wong-Sarad Grace Principal Accounting Officer 11/10/2025 AA Direct COM 32,343 $0.00 $0.00 135,791 Berkley Neil Lindsay Chief Bus Ofcr & Interim CFO 11/10/2025 AA Direct COM 65,000 $0.00 $0.00 411,570 Rosenthal Arnon Chief Executive Officer 07/01/2025 AA Direct COM 137,125 $0.00 $0.00 2,551,782 Kenkare-Mitra Sara President and Head of R&D 07/01/2025 AA Direct COM 54,725 $0.00 $0.00 566,977 Altmeyer Mark Director 06/11/2025 AA Direct COM 28,700 $0.00 $0.00 69,950 Desouza Errol B Director 06/11/2025 AA Direct COM 28,700 $0.00 $0.00 69,950 Lavigne Louis J Jr Director 06/11/2025 AA Direct COM 28,700 $0.00 $0.00 99,409 Scheller Richard H Director 06/11/2025 AA Direct COM 28,700 $0.00 $0.00 95,366 Garofalo Elizabeth A. Director 06/11/2025 AA Direct COM 28,700 $0.00 $0.00 89,950 Yaffe Kristine Director 06/11/2025 AA Direct COM 28,700 $0.00 $0.00 96,409 Hammond Paula Director 06/11/2025 AA Direct COM 28,700 $0.00 $0.00 88,909 Scheller Richard H Director 05/02/2025 AA Direct COM 15,833 $0.00 $0.00 66,666 Romano Gary Chief Medical Officer 10/01/2024 AA Direct COM 184,380 $0.00 $0.00 364,175 Rosenthal Arnon Chief Executive Officer 10/01/2024 AA Direct COM 610,500 $0.00 $0.00 2,559,246 Kenkare-Mitra Sara President and Head of R&D 10/01/2024 AA Direct COM 300,000 $0.00 $0.00 591,715 Grasso Marc Chief Financial Officer 10/01/2024 AA Direct COM 216,400 $0.00 $0.00 347,140 Scheller Richard H Director 08/02/2024 AA Direct COM 15,833 $0.00 $0.00 50,833 Hammond Paula Director 06/12/2024 AA Direct COM 35,000 $0.00 $0.00 70,709 Wehner David M. Director 06/12/2024 AA Direct COM 35,000 $0.00 $0.00 115,330 Scheller Richard H Director 06/12/2024 AA Direct COM 35,000 $0.00 $0.00 79,250 Garofalo Elizabeth A. Director 06/12/2024 AA Direct COM 35,000 $0.00 $0.00 61,250 Yaffe Kristine Director 06/12/2024 AA Direct COM 35,000 $0.00 $0.00 72,709
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Filer's Name
Relationship/
Trans.
Trans. Type
Ownership Type
Security Type
Shares
Price
Trans.
Total Shares Owned
Wong-Sarad Grace Principal Accounting Officer 03/10/2026 DS Direct COM 1,000 $2.65 $2,650.00 106,465 Wong-Sarad Grace Principal Accounting Officer 03/03/2026 DS Direct COM 3,367 $2.08 $7,012.11 107,465 Rosenthal Arnon Chief Executive Officer 03/02/2026 DS Direct COM 81,864 $2.12 $173,821.83 2,338,176 Wong-Sarad Grace Principal Accounting Officer 03/02/2026 DS Direct COM 8,071 $2.12 $17,137.96 110,832 Berkley Neil Lindsay CFO & Chief Business Officer 03/02/2026 DS Direct COM 29,649 $2.12 $62,953.72 344,660 Wong-Sarad Grace Principal Accounting Officer 02/26/2026 DS Direct COM 4,079 $2.50 $10,197.50 118,903 Wong-Sarad Grace Principal Accounting Officer 12/05/2025 DS Direct COM 4,753 $1.21 $5,751.13 122,982 Rosenthal Arnon Chief Executive Officer 12/03/2025 DS Direct COM 104,347 $1.12 $116,826.90 2,420,040 Kenkare-Mitra Sara President and Head of R&D 12/03/2025 DS Direct COM 41,687 $1.12 $46,672.77 501,652 Wong-Sarad Grace Principal Accounting Officer 12/03/2025 DS Direct COM 8,056 $1.12 $9,018.69 127,735 Berkley Neil Lindsay Chief Bus Ofcr & Interim CFO 12/03/2025 DS Direct COM 37,261 $1.12 $41,717.42 374,309 Rosenthal Arnon Chief Executive Officer 09/02/2025 DS Direct COM 51,562 $2.50 $128,740.00 2,350,220 Kenkare-Mitra Sara President and Head of R&D 09/02/2025 DS Direct COM 23,638 $2.50 $59,019.36 543,339 Berkley Neil Lindsay Principal Financial Officer 09/02/2025 DS Direct COM 15,842 $2.50 $39,554.31 346,570 Wong-Sarad Grace Principal Accounting Officer 09/02/2025 DS Direct COM 5,910 $2.50 $14,756.09 103,448 Hammond Paula Director 08/26/2025 DS Direct COM 14,000 $2.36 $32,998.00 74,909 Yaffe Kristine Director 06/20/2025 DS Direct COM 1,000 $1.44 $1,440.00 95,409 Rosenthal Arnon Chief Executive Officer 06/02/2025 DS Direct COM 52,087 $1.34 $69,713.24 2,414,657 Kenkare-Mitra Sara President and Head of R&D 06/02/2025 DS Direct COM 23,890 $1.34 $31,974.38 512,252 Grasso Marc Chief Financial Officer 06/02/2025 DS Direct COM 16,488 $1.34 $22,067.54 296,072 Romano Gary Chief Medical Officer 03/03/2025 DS Direct COM 16,306 $1.47 $23,927.42 332,977 Rosenthal Arnon Chief Executive Officer 03/03/2025 DS Direct COM 40,330 $1.47 $59,176.21 2,466,744 Kenkare-Mitra Sara President and Head of R&D 03/03/2025 DS Direct COM 29,073 $1.47 $42,661.72 536,142 Grasso Marc Chief Financial Officer 03/03/2025 DS Direct COM 18,091 $1.47 $26,546.73 312,560 Romano Gary Chief Medical Officer 12/02/2024 DS Direct COM 14,892 $2.52 $37,518.90 349,283
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Filer's Name
Relationship/
Trans.
Trans. Type
Ownership Type
Security Type
Shares
Price
Trans.
Total Shares Owned
No data available for this section
Transaction Type Key A = Acquired, D = Disposed A = Grant, award or other acquisition pursuant to Rule 16b-3(d)
C = Conversion of derivative security |
D = Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) |
E = Expiration of short derivative position |
F = Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3. |
G = Gift |
H = Expiration (or cancellation) of long derivative position with value received |
I = Discretionary transaction in accordance with Rule 16b-3(f) |
J = Other |
L = Small acquisition under Rule 16a-6 |
M = Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 |
O = Exercise of out-of-the-money derivative security |
P = Open market or private purchase |
S = Open market or private sale |
U = Disposition pursuant to a tender of shares in a change of control transaction |
W = Acquisition or disposition by will or the laws of descent and distribution |
X = Exercise of in-the-money or at-the-money derivative security |
Z = Deposit into or withdrawal from voting trust
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