Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| Alector, Inc.ALEC · Entity 6051 | Director · Chief Executive Officer | September 03, 2026 | September 04, 2026 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
Alector, Inc.
Report date September 03, 2026 · Filed September 04, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 2,294,600 |
Reported balance
After 2026-09-03 transaction · row 1
1 source rowRow 1 · 2026-09-03 · Sale · Disposed 72,606 · Balance 2,294,600 F1: The reported shares were sold to satisfy the reporting person's tax obligations in connection with the vesting of restricted stock units, or RSUs. F2: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2.49 to $2.75. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff, the issuer, or any security holder of the issuer upon request. |
| Common StockSEC Table I · non-derivative | IndirectSee footnote | 922,875 |
Reported balance
Holding disclosure · report date 2026-09-03 · row 2
Holding and transaction disclosures are not merged.
1 source rowRow 2 · Balance 922,875 F3: The reported securities are held directly by The Rosenthal Family Revocable Trust Dated November 4, 1994, as restated on June 9, 1999, for which the Reporting Person serves as trustee. |
| Common StockSEC Table I · non-derivative | IndirectSee footnote | 1,002,500 |
Reported balance
Holding disclosure · report date 2026-09-03 · row 3
Holding and transaction disclosures are not merged.
1 source rowRow 3 · Balance 1,002,500 F4: The reported securities are held directly by the Adi Rosenthal 2007 Trust dated March 27, 2007, for which the Reporting Person serves as trustee. |
| Common StockSEC Table I · non-derivative | IndirectSee footnote | 1,002,500 |
Reported balance
Holding disclosure · report date 2026-09-03 · row 4
Holding and transaction disclosures are not merged.
1 source rowRow 4 · Balance 1,002,500 F5: The reported securities are held directly by the Noam Rosenthal 2007 Trust dated March 27, 2007, for which the Reporting Person serves as trustee. |
| Common StockSEC Table I · non-derivative | IndirectSee footnote | 1,002,500 |
Reported balance
Holding disclosure · report date 2026-09-03 · row 5
Holding and transaction disclosures are not merged.
1 source rowRow 5 · Balance 1,002,500 F6: The reported securities are held directly by the Shani Rosenthal 2007 Trust dated March 27, 2007, for which the Reporting Person serves as trustee. |
Filing footnotes · ownership attribution and instrument terms
F1: The reported shares were sold to satisfy the reporting person's tax obligations in connection with the vesting of restricted stock units, or RSUs.
F2: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2.49 to $2.75. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff, the issuer, or any security holder of the issuer upon request.
F3: The reported securities are held directly by The Rosenthal Family Revocable Trust Dated November 4, 1994, as restated on June 9, 1999, for which the Reporting Person serves as trustee.
F4: The reported securities are held directly by the Adi Rosenthal 2007 Trust dated March 27, 2007, for which the Reporting Person serves as trustee.
F5: The reported securities are held directly by the Noam Rosenthal 2007 Trust dated March 27, 2007, for which the Reporting Person serves as trustee.
F6: The reported securities are held directly by the Shani Rosenthal 2007 Trust dated March 27, 2007, for which the Reporting Person serves as trustee.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| September 23, 2021 Filed Sep 24, 2021 01:12 UTC | Alector, Inc. ALEC · Entity 6051 | SaleCommon Stock | 9,625 | $25.10 | $241,567.29 |
DisclosureSEC source: 0001209191-21-057519 · doc4.xml · nonDerivative · entry 3 Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer 10b5-1 filing: Not disclosed Ownership: Indirect · See footnote Disclosed balance after: 2,302,875 F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan. F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.00 to $25.26, inclusive. F3 · ownership.nature: The reported securities are held directly by The Rosenthal Family Revocable Trust Dated November 4, 1994, as restated on June 9, 1999, for which the Reporting Person serves as trustee. Read SEC document |
| September 22, 2021 Filed Sep 24, 2021 01:12 UTC | Alector, Inc. ALEC · Entity 6051 | SaleCommon Stock | 5,283 | $26.10 | $137,890.00 |
DisclosureSEC source: 0001209191-21-057519 · doc4.xml · nonDerivative · entry 2 Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer 10b5-1 filing: Not disclosed Ownership: Indirect · See footnote Disclosed balance after: 2,312,500 F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan. F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $26.00 to $26.22, inclusive. F3 · ownership.nature: The reported securities are held directly by The Rosenthal Family Revocable Trust Dated November 4, 1994, as restated on June 9, 1999, for which the Reporting Person serves as trustee. Read SEC document |
| September 22, 2021 Filed Sep 24, 2021 01:12 UTC | Alector, Inc. ALEC · Entity 6051 | SaleCommon Stock | 94,717 | $25.29 | $2,395,298.21 |
DisclosureSEC source: 0001209191-21-057519 · doc4.xml · nonDerivative · entry 1 Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer 10b5-1 filing: Not disclosed Ownership: Indirect · See footnote Disclosed balance after: 2,317,783 F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan. F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.00 to $25.98, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (1), (3) and (4) to this Form 4. F3 · ownership.nature: The reported securities are held directly by The Rosenthal Family Revocable Trust Dated November 4, 1994, as restated on June 9, 1999, for which the Reporting Person serves as trustee. Read SEC document |
| September 21, 2021 Filed Sep 22, 2021 20:54 UTC | Alector, Inc. ALEC · Entity 6051 | SaleCommon Stock | 8,462 | $26.56 | $224,738.87 |
DisclosureSEC source: 0001209191-21-057273 · doc4.xml · nonDerivative · entry 4 Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer 10b5-1 filing: Not disclosed Ownership: Indirect · See footnote Disclosed balance after: 2,412,500 F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 20, 2021. F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $26.50 to $26.64, inclusive. F3 · ownership.nature: The reported securities are held directly by The Rosenthal Family Revocable Trust Dated November 4, 1994, as restated on June 9, 1999, for which the Reporting Person serves as trustee. Read SEC document |
| September 21, 2021 Filed Sep 22, 2021 20:54 UTC | Alector, Inc. ALEC · Entity 6051 | SaleCommon Stock | 91,538 | $26.07 | $2,386,697.74 |
DisclosureSEC source: 0001209191-21-057273 · doc4.xml · nonDerivative · entry 3 Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer 10b5-1 filing: Not disclosed Ownership: Indirect · See footnote Disclosed balance after: 2,420,962 F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 20, 2021. F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.50 to $26.49, inclusive. F3 · ownership.nature: The reported securities are held directly by The Rosenthal Family Revocable Trust Dated November 4, 1994, as restated on June 9, 1999, for which the Reporting Person serves as trustee. Read SEC document |
| September 20, 2021 Filed Sep 22, 2021 20:54 UTC | Alector, Inc. ALEC · Entity 6051 | SaleCommon Stock | 8,046 | $26.33 | $211,848.77 |
DisclosureSEC source: 0001209191-21-057273 · doc4.xml · nonDerivative · entry 2 Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer 10b5-1 filing: Not disclosed Ownership: Indirect · See footnote Disclosed balance after: 2,512,500 F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 20, 2021. F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $26.28 to $26.43, inclusive. F3 · ownership.nature: The reported securities are held directly by The Rosenthal Family Revocable Trust Dated November 4, 1994, as restated on June 9, 1999, for which the Reporting Person serves as trustee. Read SEC document |
| September 20, 2021 Filed Sep 22, 2021 20:54 UTC | Alector, Inc. ALEC · Entity 6051 | SaleCommon Stock | 91,954 | $25.76 | $2,368,541.94 |
DisclosureSEC source: 0001209191-21-057273 · doc4.xml · nonDerivative · entry 1 Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer 10b5-1 filing: Not disclosed Ownership: Indirect · See footnote Disclosed balance after: 2,520,546 F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 20, 2021. F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.25 to $26.17, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (2) and (4) through (6) to this Form 4. F3 · ownership.nature: The reported securities are held directly by The Rosenthal Family Revocable Trust Dated November 4, 1994, as restated on June 9, 1999, for which the Reporting Person serves as trustee. Read SEC document |
| May 07, 2021 Filed May 11, 2021 22:22 UTC | Alector, Inc. ALEC · Entity 6051 | GrantCommon Stock | 150,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001209191-21-031831 · doc4.xml · nonDerivative · entry 1 Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 1,455,226 F1 · shares: The reported shares are represented by performance share units, or PSUs. Fifty percent of the award will be earned if the Issuer's average closing stock price is $30 per share for 40 consecutive trading days and an additional fifty percent will be earned if the average closing stock price is $40 per share for 40 consecutive trading days. Upon attainment of the performance metrics, the shares vest in four equal quarterly installments beginning on the first vesting date as set forth in the PSU award agreement. Read SEC document |
| October 01, 2020 Filed Oct 5, 2020 20:27 UTC | Alector, Inc. ALEC · Entity 6051 | GrantStock Option (right to buy) · Derivative | 457,038 | $0.00 Strike: $10.24 | $0.00 |
DisclosureSEC source: 0001209191-20-053597 · doc4.xml · derivative · entry 1 Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 457,038 Underlying: Common Stock · 457,038 shares Expires 2030-09-30 F1 · derivative.exercise_date: One forty-eighth (1/48th) of the shares subject to the option shall vest on the one month anniversary of October 1, 2020 (the "Vesting Commencement Date"), and one forty-eighth (1/48th) of the shares shall vest each month thereafter on the same day of the month as the Vesting Commencement Date (and if there is no corresponding day, on the last day of the month), subject to the Reporting Person continuing to be a service provider to the Issuer through each such date. Read SEC document |
| November 06, 2019 Filed Nov 8, 2019 21:31 UTC | Alector, Inc. ALEC · Entity 6051 | GrantStock Option (right to buy) · Derivative | 520,000 | $0.00 Strike: $17.15 | $0.00 |
DisclosureSEC source: 0001209191-19-055823 · doc4.xml · derivative · entry 1 Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 520,000 Underlying: Common Stock · 520,000 shares Expires 2029-11-05 F1 · derivative.exercise_date: One forty-eighth (1/48th) of the shares subject to the option shall vest on the one month anniversary of November 6, 2019 (the "Vesting Commencement Date"), and one forty-eighth (1/48th) of the shares shall vest each month thereafter on the same day of the month as the Vesting Commencement Date (and if there is no corresponding day, on the last day of the month), subject to the Reporting Person continuing to have a Service Relationship (as defined in the Issuer's 2019 Equity Incentive Plan) with the Issuer through each such date. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.