Rosenthal Arnon
Chief Executive Officer
Disposition
Reported value range
Not reported
132,500 shares
Traded
Oct 13, 2026
Filed
Oct 15, 2026
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Alector
ALEC
ManufacturingChemicals
Transactions reported in official disclosures
Price with disclosed trades
Daily closes, past year · marks sit on transaction dates, sized by value
61 trades
| Reporting person | Filed | Transaction | Transaction value | Source | Actions |
|---|---|---|---|---|---|
| Rosenthal Arnon Chief Executive Officer | Oct 15, 2026 2-day lag | Disposition Oct 13, 2026 | Not reported Reported range | SEC Form 4 View filing | |
| Rosenthal Arnon Chief Executive Officer | Oct 15, 2026 2-day lag | Award Oct 13, 2026 | Not reported Reported range | SEC Form 4 View filing | |
| Wong-sarad Grace Principal Accounting Officer | Sep 4, 2026 Same-day filing | Sale Sep 4, 2026 | $9.09K Filed shares x price | SEC Form 4 View filing | |
| Wong-sarad Grace Principal Accounting Officer | Sep 4, 2026 1-day lag | Sale Sep 3, 2026 | $13.77K Filed shares x price | SEC Form 4 View filing | |
| Wong-sarad Grace Principal Accounting Officer | Sep 4, 2026 2-day lag | Sale Sep 2, 2026 | $1.8K Filed shares x price | SEC Form 4 View filing | |
| Berkley Neil Lindsay CFO & Chief Business Officer | Sep 4, 2026 1-day lag | Sale Sep 3, 2026 | $77.95K Filed shares x price | SEC Form 4 View filing | |
| Rosenthal Arnon Chief Executive Officer | Sep 4, 2026 1-day lag | Sale Sep 3, 2026 | $193.47K Filed shares x price | SEC Form 4 View filing | |
| Rosenthal Arnon Chief Executive Officer | Aug 21, 2026 2-day lag | Gift Aug 19, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Rosenthal Arnon Chief Executive Officer | Aug 21, 2026 2-day lag | Gift Aug 19, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Rosenthal Arnon Chief Executive Officer | Aug 21, 2026 2-day lag | Gift Aug 19, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Rosenthal Arnon Chief Executive Officer | Aug 21, 2026 2-day lag | Gift Aug 19, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Wong Sarad Grace Principal Accounting Officer | Jul 9, 2026 Same-day filing | Award Jul 9, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Scheller Richard H Director | Jun 17, 2026 Same-day filing | Award Jun 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Yaffe Kristine Director | Jun 17, 2026 Same-day filing | Award Jun 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Hammond Paula Director | Jun 17, 2026 Same-day filing | Award Jun 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Altmeyer Mark Director | Jun 17, 2026 Same-day filing | Award Jun 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Lavigne Louis J Jr Director | Jun 17, 2026 Same-day filing | Award Jun 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Desouza Errol B Director | Jun 17, 2026 Same-day filing | Award Jun 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Garofalo Elizabeth A. Director | Jun 17, 2026 Same-day filing | Award Jun 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Hammond Paula Director | Jun 17, 2026 Same-day filing | Award Jun 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Lavigne Louis J Jr Director | Jun 17, 2026 Same-day filing | Award Jun 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Scheller Richard H Director | Jun 17, 2026 Same-day filing | Award Jun 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Desouza Errol B Director | Jun 17, 2026 Same-day filing | Award Jun 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Yaffe Kristine Director | Jun 17, 2026 Same-day filing | Award Jun 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Garofalo Elizabeth A. Director | Jun 17, 2026 Same-day filing | Award Jun 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Altmeyer Mark Director | Jun 17, 2026 Same-day filing | Award Jun 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Wong-sarad Grace Principal Accounting Officer | Jun 3, 2026 Same-day filing | Sale Jun 3, 2026 | $6.54K Filed shares x price | SEC Form 4 View filing | |
| Berkley Neil Lindsay CFO & Chief Business Officer | Jun 3, 2026 1-day lag | Sale Jun 2, 2026 | $38.22K Filed shares x price | SEC Form 4 View filing | |
| Rosenthal Arnon Chief Executive Officer | Jun 3, 2026 1-day lag | Sale Jun 2, 2026 | $172.19K Filed shares x price | SEC Form 4 View filing | |
| Wong-sarad Grace Principal Accounting Officer | Jun 3, 2026 1-day lag | Sale Jun 2, 2026 | $11.27K Filed shares x price | SEC Form 4 View filing |
Rosenthal Arnon
Chief Executive Officer
Award
Reported value range
Not reported
457,038 shares
Traded
Oct 13, 2026
Filed
Oct 15, 2026
Wong-sarad Grace
Principal Accounting Officer
Sale
Calculated transaction value
$9.09K
3,625 shares @ $2.51
Traded
Sep 4, 2026
Filed
Sep 4, 2026
Wong-sarad Grace
Principal Accounting Officer
Sale
Calculated transaction value
$13.77K
5,165 shares @ $2.67
Traded
Sep 3, 2026
Filed
Sep 4, 2026
Wong-sarad Grace
Principal Accounting Officer
Sale
Calculated transaction value
$1.8K
656 shares @ $2.75
Traded
Sep 2, 2026
Filed
Sep 4, 2026
Berkley Neil Lindsay
CFO & Chief Business Officer
Sale
Calculated transaction value
$77.95K
29,251 shares @ $2.66
Traded
Sep 3, 2026
Filed
Sep 4, 2026
Rosenthal Arnon
Chief Executive Officer
Sale
Calculated transaction value
$193.47K
72,606 shares @ $2.66
Traded
Sep 3, 2026
Filed
Sep 4, 2026
Rosenthal Arnon
Chief Executive Officer
Gift
Calculated transaction value
$0
1,050,000 shares @ $0
Traded
Aug 19, 2026
Filed
Aug 21, 2026
Rosenthal Arnon
Chief Executive Officer
Gift
Calculated transaction value
$0
350,000 shares @ $0
Traded
Aug 19, 2026
Filed
Aug 21, 2026
Rosenthal Arnon
Chief Executive Officer
Gift
Calculated transaction value
$0
350,000 shares @ $0
Traded
Aug 19, 2026
Filed
Aug 21, 2026
Rosenthal Arnon
Chief Executive Officer
Gift
Calculated transaction value
$0
350,000 shares @ $0
Traded
Aug 19, 2026
Filed
Aug 21, 2026
Wong Sarad Grace
Principal Accounting Officer
Award
Calculated transaction value
$0
20,000 shares @ $0
Traded
Jul 9, 2026
Filed
Jul 9, 2026
Scheller Richard H
Director
Award
Calculated transaction value
$0
28,700 shares @ $0
Traded
Jun 17, 2026
Filed
Jun 17, 2026
Yaffe Kristine
Director
Award
Calculated transaction value
$0
9,450 shares @ $0
Traded
Jun 17, 2026
Filed
Jun 17, 2026
Hammond Paula
Director
Award
Calculated transaction value
$0
9,450 shares @ $0
Traded
Jun 17, 2026
Filed
Jun 17, 2026
Altmeyer Mark
Director
Award
Calculated transaction value
$0
9,450 shares @ $0
Traded
Jun 17, 2026
Filed
Jun 17, 2026
Lavigne Louis J Jr
Director
Award
Calculated transaction value
$0
9,450 shares @ $0
Traded
Jun 17, 2026
Filed
Jun 17, 2026
Desouza Errol B
Director
Award
Calculated transaction value
$0
9,450 shares @ $0
Traded
Jun 17, 2026
Filed
Jun 17, 2026
Garofalo Elizabeth A.
Director
Award
Calculated transaction value
$0
9,450 shares @ $0
Traded
Jun 17, 2026
Filed
Jun 17, 2026
Hammond Paula
Director
Award
Calculated transaction value
$0
28,700 shares @ $0
Traded
Jun 17, 2026
Filed
Jun 17, 2026
Lavigne Louis J Jr
Director
Award
Calculated transaction value
$0
28,700 shares @ $0
Traded
Jun 17, 2026
Filed
Jun 17, 2026
Scheller Richard H
Director
Award
Calculated transaction value
$0
9,450 shares @ $0
Traded
Jun 17, 2026
Filed
Jun 17, 2026
Desouza Errol B
Director
Award
Calculated transaction value
$0
28,700 shares @ $0
Traded
Jun 17, 2026
Filed
Jun 17, 2026
Yaffe Kristine
Director
Award
Calculated transaction value
$0
28,700 shares @ $0
Traded
Jun 17, 2026
Filed
Jun 17, 2026
Garofalo Elizabeth A.
Director
Award
Calculated transaction value
$0
28,700 shares @ $0
Traded
Jun 17, 2026
Filed
Jun 17, 2026
Altmeyer Mark
Director
Award
Calculated transaction value
$0
28,700 shares @ $0
Traded
Jun 17, 2026
Filed
Jun 17, 2026
Wong-sarad Grace
Principal Accounting Officer
Sale
Calculated transaction value
$6.54K
3,475 shares @ $1.88
Traded
Jun 3, 2026
Filed
Jun 3, 2026
Berkley Neil Lindsay
CFO & Chief Business Officer
Sale
Calculated transaction value
$38.22K
19,360 shares @ $1.97
Traded
Jun 2, 2026
Filed
Jun 3, 2026
Rosenthal Arnon
Chief Executive Officer
Sale
Calculated transaction value
$172.19K
87,216 shares @ $1.97
Traded
Jun 2, 2026
Filed
Jun 3, 2026
Wong-sarad Grace
Principal Accounting Officer
Sale
Calculated transaction value
$11.27K
5,709 shares @ $1.97
Traded
Jun 2, 2026
Filed
Jun 3, 2026