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Rosenthal Arnon

Disclosed activity across 1 company

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10217
SEC CIK
0001757770

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Alector, Inc.ALEC · Entity 6051Director · Chief Executive OfficerSeptember 03, 2026September 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 / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect2,294,600 Reported balance After 2026-09-03 transaction · row 1
1 source row

Row 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-derivativeIndirectSee footnote922,875 Reported balance Holding disclosure · report date 2026-09-03 · row 2 Holding and transaction disclosures are not merged.
1 source row

Row 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-derivativeIndirectSee footnote1,002,500 Reported balance Holding disclosure · report date 2026-09-03 · row 3 Holding and transaction disclosures are not merged.
1 source row

Row 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-derivativeIndirectSee footnote1,002,500 Reported balance Holding disclosure · report date 2026-09-03 · row 4 Holding and transaction disclosures are not merged.
1 source row

Row 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-derivativeIndirectSee footnote1,002,500 Reported balance Holding disclosure · report date 2026-09-03 · row 5 Holding and transaction disclosures are not merged.
1 source row

Row 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

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Purchases/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 dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
September 03, 2026 Filed Sep 4, 2026 21:45 UTC Alector, Inc. ALEC · Entity 6051 SaleCommon Stock 72,606 $2.66 $193,473.21
Disclosure

SEC source: 0001193125-26-383857 · ownership.xml · nonDerivative · entry 1

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,294,600

F1 · kind: 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 · price: 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.

Read SEC document
August 19, 2026 Filed Aug 21, 2026 22:00 UTC Alector, Inc. ALEC · Entity 6051 GiftCommon Stock 350,000 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-361376 · ownership.xml · nonDerivative · entry 4

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 1,002,500

F4 · ownership.nature: The reported securities are held directly by the Shani Rosenthal 2007 Trust dated March 27, 2007, for which the Reporting Person serves as trustee.

Read SEC document
August 19, 2026 Filed Aug 21, 2026 22:00 UTC Alector, Inc. ALEC · Entity 6051 GiftCommon Stock 350,000 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-361376 · ownership.xml · nonDerivative · entry 3

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 1,002,500

F3 · ownership.nature: The reported securities are held directly by the Noam Rosenthal 2007 Trust dated March 27, 2007, for which the Reporting Person serves as trustee.

Read SEC document
August 19, 2026 Filed Aug 21, 2026 22:00 UTC Alector, Inc. ALEC · Entity 6051 GiftCommon Stock 350,000 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-361376 · ownership.xml · nonDerivative · entry 2

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 1,002,500

F2 · ownership.nature: The reported securities are held directly by the Adi Rosenthal 2007 Trust dated March 27, 2007, for which the Reporting Person serves as trustee.

Read SEC document
August 19, 2026 Filed Aug 21, 2026 22:00 UTC Alector, Inc. ALEC · Entity 6051 GiftCommon Stock 1,050,000 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-361376 · ownership.xml · nonDerivative · entry 1

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 922,875

F1 · 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
June 02, 2026 Filed Jun 3, 2026 21:30 UTC Alector, Inc. ALEC · Entity 6051 SaleCommon Stock 87,216 $1.97 $172,190.55
Disclosure

SEC source: 0001193125-26-255816 · ownership.xml · nonDerivative · entry 1

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,367,206

F1 · kind: 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 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $1.92 to $2.08. 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.

Read SEC document
March 13, 2026 Filed Mar 13, 2026 20:30 UTC Alector, Inc. ALEC · Entity 6051 GrantCommon Stock 116,246 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-106250 · ownership.xml · nonDerivative · entry 1

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,454,422

F1 · shares: The reported shares are represented by restricted stock units, or RSUs, one half (1/2) of the total shares shall vest on September 1, 2026 and one half (1/2th) of the total shares shall vest on March 1, 2027.

Read SEC document
March 02, 2026 Filed Mar 3, 2026 21:05 UTC Alector, Inc. ALEC · Entity 6051 SaleCommon Stock 81,864 $2.12 $173,821.83
Disclosure

SEC source: 0001757770-26-000002 · ownership.xml · nonDerivative · entry 1

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,338,176

F1 · kind: 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 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2.04 to $2.37. 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.

Read SEC document
December 03, 2025 Filed Dec 4, 2025 02:06 UTC Alector, Inc. ALEC · Entity 6051 SaleCommon Stock 104,347 $1.12 $116,826.90
Disclosure

SEC source: 0001757770-25-000007 · form4-12042025_021222.xml · nonDerivative · entry 1

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,420,040

F1 · kind: 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 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $1.095 to $1.14. 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.

Read SEC document
November 10, 2025 Filed Nov 12, 2025 21:10 UTC Alector, Inc. ALEC · Entity 6051 GrantEmployee Stock Option (right to buy) · Derivative 522,500 $0.00 Strike: $1.31 $0.00
Disclosure

SEC source: 0001757770-25-000006 · form4-11122025_091119.xml · derivative · entry 6

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 522,500

Underlying: Common Stock · 522,500 shares

Expires 2035-11-09

F6 · derivative.exercise_date: Shares subject to the option vest in 48 equal monthly installments beginning on December 10, 2025.

Read SEC document
November 10, 2025 Filed Nov 12, 2025 21:10 UTC Alector, Inc. ALEC · Entity 6051 GrantCommon Stock 174,167 $0.00 $0.00
Disclosure

SEC source: 0001757770-25-000006 · form4-11122025_091119.xml · nonDerivative · entry 1

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,524,387

F1 · shares: The reported shares are represented by restricted stock units, or RSUs, which vest in 12 equal quarterly installments beginning on December 1, 2025.

Read SEC document
September 02, 2025 Filed Sep 4, 2025 20:27 UTC Alector, Inc. ALEC · Entity 6051 SaleCommon Stock 51,562 $2.50 $128,740.00
Disclosure

SEC source: 0001415889-25-023670 · form4-09042025_080945.xml · nonDerivative · entry 1

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,350,220

F1 · kind: 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 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2.30 to $2.59. 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 · balance_after: The reported amount excludes 150,000 shares previously reported as performance share units, or PSUs. Because the performance metrics were not attained during the PSU measurement period, these PSUs were forfeited on May 6, 2025.

Read SEC document
July 01, 2025 Filed Jul 1, 2025 21:00 UTC Alector, Inc. ALEC · Entity 6051 GrantEmployee Stock Option (right to buy) · Derivative 45,700 $0.00 Strike: $1.42 $0.00
Disclosure

SEC source: 0000950170-25-092312 · ownership.xml · derivative · entry 6

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 45,700

Underlying: Common Stock · 45,700 shares

Expires 2035-07-01

F6 · derivative.exercise_date: One third (1/3rd) of the total shares subject to the option shall vest on November 1, 2025, and one twelfth (1/12th) of the total shares subject to the option shall vest in equal monthly installments thereafter, provided that the shares subject to the option will vest in full on July 1, 2026.

Read SEC document
July 01, 2025 Filed Jul 1, 2025 21:00 UTC Alector, Inc. ALEC · Entity 6051 GrantCommon Stock 137,125 $0.00 $0.00
Disclosure

SEC source: 0000950170-25-092312 · ownership.xml · nonDerivative · entry 1

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,551,782

F1 · shares: The reported shares are represented by restricted stock units, or RSUs, one half (1/2) of the total shares shall vest on December 1, 2025 and one fourth (1/4th) of the total shares shall vest quarterly thereafter.

Read SEC document
June 02, 2025 Filed Jun 4, 2025 20:18 UTC Alector, Inc. ALEC · Entity 6051 SaleCommon Stock 52,087 $1.34 $69,713.24
Disclosure

SEC source: 0001415889-25-015583 · form4-06042025_080624.xml · nonDerivative · entry 1

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,414,657

F1 · kind: 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 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $1.285 to $1.41. 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.

Read SEC document
March 03, 2025 Filed Mar 5, 2025 21:05 UTC Alector, Inc. ALEC · Entity 6051 SaleCommon Stock 40,330 $1.47 $59,176.21
Disclosure

SEC source: 0000950170-25-033530 · ownership.xml · nonDerivative · entry 1

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,466,744

F1 · kind: 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 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $1.4673 to $1.4674. 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.

Read SEC document
December 02, 2024 Filed Dec 3, 2024 22:40 UTC Alector, Inc. ALEC · Entity 6051 SaleCommon Stock 52,172 $2.52 $131,442.14
Disclosure

SEC source: 0000950170-24-132912 · ownership.xml · nonDerivative · entry 1

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,507,074

F1 · kind: 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 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2.5193 to $2.5194. 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.

Read SEC document
October 01, 2024 Filed Oct 2, 2024 20:05 UTC Alector, Inc. ALEC · Entity 6051 GrantCommon Stock 610,500 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-111421 · ownership.xml · nonDerivative · entry 1

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,559,246

F1 · shares: The reported shares are represented by restricted stock units, or RSUs, which vest in 12 equal quarterly installments beginning on December 1, 2024.

Read SEC document
September 03, 2024 Filed Sep 4, 2024 20:15 UTC Alector, Inc. ALEC · Entity 6051 SaleCommon Stock 26,499 $4.88 $129,386.67
Disclosure

SEC source: 0000950170-24-103408 · ownership.xml · nonDerivative · entry 1

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,948,746

F1 · kind: 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 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $4.8827 to $4.8828. 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.

Read SEC document
June 03, 2024 Filed Jun 4, 2024 22:05 UTC Alector, Inc. ALEC · Entity 6051 SaleCommon Stock 25,135 $4.80 $120,617.84
Disclosure

SEC source: 0000950170-24-068941 · ownership.xml · nonDerivative · entry 1

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,975,245

F1 · kind: The reported shares were sold to satisfy the reporting person's tax obligations in connection with the vesting of restricted stock units, or RSUs.

Read SEC document
March 04, 2024 Filed Mar 5, 2024 23:00 UTC Alector, Inc. ALEC · Entity 6051 SaleCommon Stock 18,837 $6.92 $130,385.95
Disclosure

SEC source: 0000950170-24-026424 · ownership.xml · nonDerivative · entry 1

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,000,380

F1 · kind: 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 · price: The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $6.9217 to $6.9219. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.

Read SEC document
December 04, 2023 Filed Dec 6, 2023 23:30 UTC Alector, Inc. ALEC · Entity 6051 SaleCommon Stock 23,831 $5.56 $132,500.36
Disclosure

SEC source: 0000950170-23-068619 · ownership.xml · nonDerivative · entry 1

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,019,217

F1 · kind: The reported shares were sold to satisfy the reporting person's tax obligations in connection with the vesting of restricted stock units, or RSUs.

Read SEC document
October 01, 2023 Filed Oct 3, 2023 22:10 UTC Alector, Inc. ALEC · Entity 6051 GrantEmployee Stock Option (right to buy) · Derivative 132,500 $0.00 Strike: $6.48 $0.00
Disclosure

SEC source: 0000950170-23-051702 · ownership.xml · derivative · entry 6

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 132,500

Underlying: Common Stock · 132,500 shares

Expires 2033-10-01

F6 · derivative.exercise_date: Shares subject to the option vest in 48 equal monthly installments beginning on November 1, 2023.

Read SEC document
October 01, 2023 Filed Oct 3, 2023 22:10 UTC Alector, Inc. ALEC · Entity 6051 GrantCommon Stock 397,600 $0.00 $0.00
Disclosure

SEC source: 0000950170-23-051702 · ownership.xml · nonDerivative · entry 1

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,043,048

F1 · shares: The reported shares are represented by restricted stock units, or RSUs, which vest in 12 equal quarterly installments beginning on December 1, 2023.

Read SEC document
September 05, 2023 Filed Sep 6, 2023 23:18 UTC Alector, Inc. ALEC · Entity 6051 SaleCommon Stock 5,647 $5.19 $29,333.34
Disclosure

SEC source: 0000950170-23-046836 · ownership.xml · nonDerivative · entry 1

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,645,448

F1 · kind: The reported shares were sold to satisfy the reporting person's tax obligations in connection with the vesting of RSUs.

Read SEC document
June 02, 2023 Filed Jun 5, 2023 22:48 UTC Alector, Inc. ALEC · Entity 6051 SaleCommon Stock 5,255 $6.90 $36,278.94
Disclosure

SEC source: 0000950170-23-026473 · ownership.xml · nonDerivative · entry 1

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,651,095

F1 · kind: The reported shares were sold to satisfy the reporting person's tax obligations in connection with the vesting of RSUs.

Read SEC document
March 17, 2023 Filed Mar 22, 2023 00:35 UTC Alector, Inc. ALEC · Entity 6051 SaleCommon Stock 15,186 $6.22 $94,428.07
Disclosure

SEC source: 0001209191-23-020421 · doc4.xml · nonDerivative · entry 2

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,656,350

F2 · kind: The reported shares were sold to satisfy the reporting person's tax obligations in connection with the vesting of RSUs.

Read SEC document
March 03, 2023 Filed Mar 22, 2023 00:35 UTC Alector, Inc. ALEC · Entity 6051 GrantCommon Stock 42,990 $0.00 $0.00
Disclosure

SEC source: 0001209191-23-020421 · doc4.xml · nonDerivative · entry 1

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,671,536

F1 · shares: The reported shares are represented by restricted stock units, or RSUs, all of which were fully vested on the grant date.

Read SEC document
March 02, 2023 Filed Mar 4, 2023 01:47 UTC Alector, Inc. ALEC · Entity 6051 SaleCommon Stock 5,849 $8.32 $48,650.81
Disclosure

SEC source: 0001209191-23-016080 · doc4.xml · nonDerivative · entry 1

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,628,546

F1 · kind: The reported shares were sold to satisfy the reporting person's tax obligations in connection with the vesting of restricted stock units, or RSUs.

Read SEC document
October 01, 2022 Filed Oct 4, 2022 23:16 UTC Alector, Inc. ALEC · Entity 6051 GrantEmployee Stock Option (right to buy) · Derivative 119,446 $0.00 Strike: $9.46 $0.00
Disclosure

SEC source: 0001209191-22-052530 · doc4.xml · derivative · entry 6

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 119,446

Underlying: Common Stock · 119,446 shares

Expires 2032-10-01

F6 · derivative.exercise_date: Shares subject to the option vest in 48 equal monthly installments beginning on November 1, 2022.

Read SEC document
October 01, 2022 Filed Oct 4, 2022 23:16 UTC Alector, Inc. ALEC · Entity 6051 GrantCommon Stock 179,169 $0.00 $0.00
Disclosure

SEC source: 0001209191-22-052530 · doc4.xml · nonDerivative · entry 1

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,634,395

F1 · shares: The reported shares are represented by restricted stock units, or RSUs, which vest in 12 equal quarterly installments beginning on March 1, 2023.

Read SEC document
November 11, 2021 Filed Nov 12, 2021 23:36 UTC Alector, Inc. ALEC · Entity 6051 SaleCommon Stock 55,000 $25.00 $1,375,000.00
Disclosure

SEC source: 0001209191-21-064341 · 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: 1,972,875

F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan.

F2 · 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
November 10, 2021 Filed Nov 12, 2021 23:36 UTC Alector, Inc. ALEC · Entity 6051 SaleCommon Stock 55,000 $25.00 $1,375,000.00
Disclosure

SEC source: 0001209191-21-064341 · 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: 2,027,875

F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan.

F2 · 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
November 09, 2021 Filed Nov 11, 2021 00:07 UTC Alector, Inc. ALEC · Entity 6051 SaleCommon Stock 15,000 $25.00 $375,000.00
Disclosure

SEC source: 0001209191-21-063971 · doc4.xml · nonDerivative · entry 8

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 652,500

F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan.

F5 · ownership.nature: The reported securities are held directly by the Shani Rosenthal 2007 Trust dated March 27, 2007, for which the Reporting Person serves as trustee.

Read SEC document
November 09, 2021 Filed Nov 11, 2021 00:07 UTC Alector, Inc. ALEC · Entity 6051 SaleCommon Stock 15,000 $25.00 $375,000.00
Disclosure

SEC source: 0001209191-21-063971 · doc4.xml · nonDerivative · entry 7

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 652,500

F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan.

F4 · ownership.nature: The reported securities are held directly by the Noam Rosenthal 2007 Trust dated March 27, 2007, for which the Reporting Person serves as trustee.

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November 09, 2021 Filed Nov 11, 2021 00:07 UTC Alector, Inc. ALEC · Entity 6051 SaleCommon Stock 15,000 $25.00 $375,000.00
Disclosure

SEC source: 0001209191-21-063971 · doc4.xml · nonDerivative · entry 6

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 652,500

F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan.

F3 · ownership.nature: The reported securities are held directly by the Adi Rosenthal 2007 Trust dated March 27, 2007, for which the Reporting Person serves as trustee.

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November 09, 2021 Filed Nov 11, 2021 00:07 UTC Alector, Inc. ALEC · Entity 6051 SaleCommon Stock 55,000 $25.00 $1,375,000.00
Disclosure

SEC source: 0001209191-21-063971 · doc4.xml · nonDerivative · entry 5

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 2,082,875

F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan.

F2 · 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.

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November 08, 2021 Filed Nov 11, 2021 00:07 UTC Alector, Inc. ALEC · Entity 6051 SaleCommon Stock 15,000 $25.00 $375,000.00
Disclosure

SEC source: 0001209191-21-063971 · 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: 667,500

F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan.

F5 · ownership.nature: The reported securities are held directly by the Shani Rosenthal 2007 Trust dated March 27, 2007, for which the Reporting Person serves as trustee.

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November 08, 2021 Filed Nov 11, 2021 00:07 UTC Alector, Inc. ALEC · Entity 6051 SaleCommon Stock 15,000 $25.00 $375,000.00
Disclosure

SEC source: 0001209191-21-063971 · 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: 667,500

F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan.

F4 · ownership.nature: The reported securities are held directly by the Noam Rosenthal 2007 Trust dated March 27, 2007, for which the Reporting Person serves as trustee.

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November 08, 2021 Filed Nov 11, 2021 00:07 UTC Alector, Inc. ALEC · Entity 6051 SaleCommon Stock 15,000 $25.00 $375,000.00
Disclosure

SEC source: 0001209191-21-063971 · 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: 667,500

F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan.

F3 · ownership.nature: The reported securities are held directly by the Adi Rosenthal 2007 Trust dated March 27, 2007, for which the Reporting Person serves as trustee.

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November 08, 2021 Filed Nov 11, 2021 00:07 UTC Alector, Inc. ALEC · Entity 6051 SaleCommon Stock 55,000 $25.00 $1,375,000.00
Disclosure

SEC source: 0001209191-21-063971 · 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: 2,137,875

F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan.

F2 · 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.

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November 05, 2021 Filed Nov 8, 2021 23:39 UTC Alector, Inc. ALEC · Entity 6051 SaleCommon Stock 15,000 $25.00 $375,000.00
Disclosure

SEC source: 0001209191-21-063451 · doc4.xml · nonDerivative · entry 8

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 682,500

F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan.

F5 · ownership.nature: The reported securities are held directly by the Shani Rosenthal 2007 Trust dated March 27, 2007, for which the Reporting Person serves as trustee.

Read SEC document
November 05, 2021 Filed Nov 8, 2021 23:39 UTC Alector, Inc. ALEC · Entity 6051 SaleCommon Stock 15,000 $25.00 $375,000.00
Disclosure

SEC source: 0001209191-21-063451 · doc4.xml · nonDerivative · entry 7

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 682,500

F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan.

F4 · ownership.nature: The reported securities are held directly by the Noam Rosenthal 2007 Trust dated March 27, 2007, for which the Reporting Person serves as trustee.

Read SEC document
November 05, 2021 Filed Nov 8, 2021 23:39 UTC Alector, Inc. ALEC · Entity 6051 SaleCommon Stock 15,000 $25.00 $375,000.00
Disclosure

SEC source: 0001209191-21-063451 · doc4.xml · nonDerivative · entry 6

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 682,500

F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan.

F3 · ownership.nature: The reported securities are held directly by the Adi Rosenthal 2007 Trust dated March 27, 2007, for which the Reporting Person serves as trustee.

Read SEC document
November 05, 2021 Filed Nov 8, 2021 23:39 UTC Alector, Inc. ALEC · Entity 6051 SaleCommon Stock 55,000 $25.00 $1,375,000.00
Disclosure

SEC source: 0001209191-21-063451 · doc4.xml · nonDerivative · entry 5

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 2,192,875

F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan.

F2 · 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
November 04, 2021 Filed Nov 8, 2021 23:39 UTC Alector, Inc. ALEC · Entity 6051 SaleCommon Stock 15,000 $25.00 $375,000.00
Disclosure

SEC source: 0001209191-21-063451 · 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: 697,500

F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan.

F5 · ownership.nature: The reported securities are held directly by the Shani Rosenthal 2007 Trust dated March 27, 2007, for which the Reporting Person serves as trustee.

Read SEC document
November 04, 2021 Filed Nov 8, 2021 23:39 UTC Alector, Inc. ALEC · Entity 6051 SaleCommon Stock 15,000 $25.00 $375,000.00
Disclosure

SEC source: 0001209191-21-063451 · 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: 697,500

F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan.

F4 · ownership.nature: The reported securities are held directly by the Noam Rosenthal 2007 Trust dated March 27, 2007, for which the Reporting Person serves as trustee.

Read SEC document
November 04, 2021 Filed Nov 8, 2021 23:39 UTC Alector, Inc. ALEC · Entity 6051 SaleCommon Stock 15,000 $25.00 $375,000.00
Disclosure

SEC source: 0001209191-21-063451 · 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: 697,500

F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan.

F3 · ownership.nature: The reported securities are held directly by the Adi Rosenthal 2007 Trust dated March 27, 2007, for which the Reporting Person serves as trustee.

Read SEC document
November 04, 2021 Filed Nov 8, 2021 23:39 UTC Alector, Inc. ALEC · Entity 6051 SaleCommon Stock 55,000 $25.00 $1,375,000.00
Disclosure

SEC source: 0001209191-21-063451 · 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: 2,247,875

F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan.

F2 · 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.

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October 01, 2021 Filed Oct 4, 2021 22:53 UTC Alector, Inc. ALEC · Entity 6051 GrantEmployee Stock Option (right to buy) · Derivative 417,213 $0.00 Strike: $23.70 $0.00
Disclosure

SEC source: 0001209191-21-059144 · doc4.xml · derivative · entry 1

Rosenthal Arnon · CIK 0001757770 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 417,213

Underlying: Common Stock · 417,213 shares

Expires 2031-10-01

F1 · derivative.exercise_date: The shares subject to the option vest in 48 equal monthly installments beginning on November 1, 2021.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.