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Reporting owner

Rosenthal Arnon

Reporting owner CIK 0001757770 · Chief Executive Officer · Director

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These transactions appear in filings associated with this reporting owner. Jointly reported quantities and amounts are unallocated; they are not this owner's individual purchases or total holdings. Names and roles reflect the relevant filing, and a reporting owner may be a person or an organization.

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Transaction timeline

Who reported an acquisition, and when the transaction occurred.

Reported acquisitions by transaction dateEach row is a reporting owner. Select a marker to open its transaction details. Jointly reported transactions appear for each associated reporting owner, without dividing quantities or amounts.Rosenthal ArnonRosenthal ArnonRosenthal Arnon · October 14, 2026 · Stock award · Employee Stock Option (right to buy)Rosenthal Arnon · October 13, 2026 · Stock award · Employee Stock Option (right to buy)Rosenthal Arnon · October 13, 2026 · Stock award · Employee Stock Option (right to buy)Rosenthal Arnon · October 13, 2026 · Stock award · Employee Stock Option (right to buy)Rosenthal Arnon · October 13, 2026 · Stock award · Employee Stock Option (right to buy)Rosenthal Arnon · October 13, 2026 · Stock award · Employee Stock Option (right to buy)Rosenthal Arnon · October 13, 2026 · Stock award · Employee Stock Option (right to buy)Rosenthal Arnon · October 13, 2026 · Stock award · Employee Stock Option (right to buy)Rosenthal Arnon · October 14, 2026 · Stock award · Common StockRosenthal Arnon · November 10, 2025 · Stock award · Employee Stock Option (right to buy)Rosenthal Arnon · November 10, 2025 · Stock award · Common StockNov 10, 2025Oct 14, 2026
PurchaseStock awardGift receivedExercise / conversionConversionOther acquisition

11 dated transactions · 1 of 1 reporting owners shown. Select one owner to focus the chart.

View timeline as a table
Transaction dateCompany / securityReporting ownersAcquisition type
Oct 14, 2026Alector, Inc.Employee Stock Option (right to buy)Rosenthal ArnonStock award
Oct 13, 2026Alector, Inc.Employee Stock Option (right to buy)Rosenthal ArnonStock award
Oct 13, 2026Alector, Inc.Employee Stock Option (right to buy)Rosenthal ArnonStock award
Oct 13, 2026Alector, Inc.Employee Stock Option (right to buy)Rosenthal ArnonStock award
Oct 13, 2026Alector, Inc.Employee Stock Option (right to buy)Rosenthal ArnonStock award
Oct 13, 2026Alector, Inc.Employee Stock Option (right to buy)Rosenthal ArnonStock award
Oct 13, 2026Alector, Inc.Employee Stock Option (right to buy)Rosenthal ArnonStock award
Oct 13, 2026Alector, Inc.Employee Stock Option (right to buy)Rosenthal ArnonStock award
Oct 14, 2026Alector, Inc.Common StockRosenthal ArnonStock award
Nov 10, 2025Alector, Inc.Employee Stock Option (right to buy)Rosenthal ArnonStock award
Nov 10, 2025Alector, Inc.Common StockRosenthal ArnonStock award

Only transactions on this page are shown. Date windows end on the latest transaction date in this sample. Joint filings may appear on more than one row. Sales are not included. Share-price charts use a separate data source.

Transactions in associated filings

Reported insider acquisitions, ordered by filing date, newest first. Currency is shown only when reported.
Filed / transactedCompanyReporting ownersType / securityQuantityPrice / reference valueDetails
Trade: Alector, Inc.ALEC · company listings
Rosenthal ArnonChief Executive Officer · Director
Stock awardEmployee Stock Option (right to buy)Derivative security · Code A978,7500Value: 0Currency not specifiedView ↗
Trade: Alector, Inc.ALEC · company listings
Rosenthal ArnonChief Executive Officer · Director
Stock awardEmployee Stock Option (right to buy)Derivative security · Code A132,500Not reported *Value: Not reportedCurrency not specifiedView ↗
Trade: Alector, Inc.ALEC · company listings
Rosenthal ArnonChief Executive Officer · Director
Stock awardEmployee Stock Option (right to buy)Derivative security · Code A119,446Not reported *Value: Not reportedCurrency not specifiedView ↗
Trade: Alector, Inc.ALEC · company listings
Rosenthal ArnonChief Executive Officer · Director
Stock awardEmployee Stock Option (right to buy)Derivative security · Code A417,213Not reported *Value: Not reportedCurrency not specifiedView ↗
Trade: Alector, Inc.ALEC · company listings
Rosenthal ArnonChief Executive Officer · Director
Stock awardEmployee Stock Option (right to buy)Derivative security · Code A457,038Not reported *Value: Not reportedCurrency not specifiedView ↗
Trade: Alector, Inc.ALEC · company listings
Rosenthal ArnonChief Executive Officer · Director
Stock awardEmployee Stock Option (right to buy)Derivative security · Code A520,000Not reported *Value: Not reportedCurrency not specifiedView ↗
Trade: Alector, Inc.ALEC · company listings
Rosenthal ArnonChief Executive Officer · Director
Stock awardEmployee Stock Option (right to buy)Derivative security · Code A275,000Not reported *Value: Not reportedCurrency not specifiedView ↗
Trade: Alector, Inc.ALEC · company listings
Rosenthal ArnonChief Executive Officer · Director
Stock awardEmployee Stock Option (right to buy)Derivative security · Code A500,000Not reported *Value: Not reportedCurrency not specifiedView ↗
Trade: Alector, Inc.ALEC · company listings
Rosenthal ArnonChief Executive Officer · Director
Stock awardCommon StockNon-derivative security · Code A217,5000Value: 0Currency not specifiedView ↗
Trade: Alector, Inc.ALEC · company listings
Rosenthal ArnonChief Executive Officer · Director
Stock awardEmployee Stock Option (right to buy)Derivative security · Code A522,5000Value: 0Currency not specifiedView ↗
Trade: Alector, Inc.ALEC · company listings
Rosenthal ArnonChief Executive Officer · Director
Stock awardCommon StockNon-derivative security · Code A174,1670Value: 0Currency not specifiedView ↗