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Alector, Inc. SEC Filings

ALEC NASDAQ

Welcome to our dedicated page for Alector SEC filings (Ticker: ALEC), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.

Our SEC filing database is enhanced with expert analysis from Rhea-AI, providing insights into the potential impact of each filing on Alector's stock performance. Each filing includes a concise AI-generated summary, sentiment and impact scores, and end-of-day stock performance data showing the actual market reaction. Navigate easily through different filing types including 10-K annual reports, 10-Q quarterly reports, 8-K current reports, proxy statements (DEF 14A), and Form 4 insider trading disclosures.

Designed for fundamental investors and regulatory compliance professionals, our page simplifies access to critical SEC filings. By combining real-time EDGAR feed updates, Rhea-AI's analytical insights, and historical stock performance data, we provide comprehensive visibility into Alector's regulatory disclosures and financial reporting.

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DESOUZA ERROL B reported acquisition or exercise transactions in this Form 4 filing.

Alector, Inc. director Errol B. DeSouza received equity compensation consisting of restricted stock units and stock options. He was granted 28,700 RSUs representing common stock, bringing his direct common stock holdings to 98,650 shares after the award.

The RSUs vest on the earlier of June 16, 2027 or Alector’s next annual stockholder meeting. DeSouza was also granted options over 9,450 shares of common stock, which vest in 12 equal monthly installments beginning July 17, 2026, and fully vest on the earlier of the one-year anniversary of grant or the next annual meeting, and expire on June 16, 2036.

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LAVIGNE LOUIS J JR reported acquisition or exercise transactions in this Form 4 filing.

Alector, Inc. director Louis J. Lavigne Jr. reported new equity compensation awards. He received 28,700 shares of common stock in the form of restricted stock units (RSUs) at no cost. These RSUs vest on the earlier of June 17, 2027 or Alector’s next annual meeting of stockholders.

He was also granted a stock option covering 9,450 shares of common stock, vesting in 12 equal monthly installments beginning July 17, 2026, with full vesting on the earlier of the one-year anniversary of grant or the next annual meeting. The option expires on June 16, 2036. Following these grants, he holds 128,109 common shares directly and 10,552 common shares indirectly through Lavrite, LLC, for which he serves as managing director.

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SCHELLER RICHARD H reported acquisition or exercise transactions in this Form 4 filing.

Alector director Richard H. Scheller received an equity grant of 10,833 shares of Common Stock in the form of restricted stock units. These RSUs vest in four equal quarterly installments beginning on June 1, 2026. After this award, he holds 106,199 shares directly.

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Alector, Inc. Chief Executive Officer Arnon Rosenthal reported a disposition of 87,216 shares of common stock on June 2, 2026 at a weighted average price of $1.9743 per share. The shares were sold to satisfy tax obligations from vesting restricted stock units, leaving him with 2,367,206 shares held directly, plus additional indirect holdings through family trusts.

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Alector, Inc. principal accounting officer Grace Wong-Sarad reported open-market sales of company common stock that were made to satisfy tax obligations from vesting restricted stock units. She sold a total of 9,184 shares over two days under a pre-arranged Rule 10b5-1 trading plan and continues to hold 95,461 shares.

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Alector, Inc. executive Neil Lindsay Berkley, the CFO & Chief Business Officer, reported an open-market sale of 19,360 shares of common stock on June 2, 2026 at a weighted average price of $1.9742 per share. According to the disclosure, these shares were sold to satisfy his tax obligations arising from the vesting of restricted stock units. After this tax-related sale, Berkley directly holds 379,900 shares of Alector common stock.

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Alec Rarely, Inc. (ALEC) submitted a Form 144 notice reporting an intended sale of 3,475 shares of Common stock described as Restricted Stock with an issuance/offer date of 06/01/2026. The filing also lists three prior sales by Grace Wong-Sarad of 5,709, 1,820, and 1,000 common shares on 06/02/2026, 04/16/2026, and 03/10/2026, respectively.

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Alector, Inc. submits a Rule 144 notice regarding recent common stock activity. The filing records the vesting of 10,295 Restricted Stock Units on 06/01/2026 and lists multiple prior open-market dispositions by Grace Wong-Sarad in Feb–Apr 2026. The securities are Common Stock listed on Nasdaq.

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Alector, Inc. filed a Form 144 notice reporting proposed sales tied to the vesting of Restricted Stock Units. The filing lists 35,795 shares related to RSU vesting on 06/01/2026.

The excerpt also shows 29,649 shares reported as sold on 03/02/2026 in the prior three months. The filing is a routine sale notice under the securities resale rules.

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Alector, Inc. filed a Form 144 notifying the proposed sale of 132,805 shares of Common Stock tied to the vesting of restricted stock units on 06/01/2026. The notice also records prior dispositions of 81,864 shares on 03/02/2026 producing $173,825.38 in proceeds. The transactions are reported in connection with brokerage arrangements through Morgan Stanley Smith Barney and list Nasdaq as the market.

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FAQ

How many Alector (ALEC) SEC filings are available on StockTitan?

StockTitan tracks 80 SEC filings for Alector (ALEC), including 10-K annual reports, 10-Q quarterly reports, 8-K current reports, and Form 4 insider trading disclosures. Each filing includes AI-generated summaries, impact scoring, and sentiment analysis.

When was the most recent SEC filing for Alector (ALEC)?

The most recent SEC filing for Alector (ALEC) was filed on June 17, 2026.