Every Form 4 that Alector, Inc. (ALEC) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A Form 4 covers the transactions officers, directors and large holders report, so if you follow ALEC and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full ALEC filings page.
Alector, Inc. (ALEC) reported that Principal Accounting Officer Grace Wong-Sarad sold a total of 9,446 shares of common stock in three open-market transactions on September 2–4, 2026. All reported sales were effected under a Rule 10b5-1 Trading Plan adopted on September 5, 2025, with one sale on September 3 disclosed as satisfying tax obligations related to vesting RSUs.
Alector, Inc. (ALEC) reported that its CFO & Chief Business Officer, Berkley Neil Lindsay, sold 29,251 shares of common stock on September 3, 2026 at a weighted average price of $2.6648 per share. The company reports the sale was made to satisfy the reporting person's tax obligations arising from the vesting of restricted stock units. Following this transaction, Lindsay directly holds 350,649 shares of Alector common stock. No Rule 10b5-1 trading plan is reported for this sale.
Alector, Inc. (ALEC) disclosed that Chief Executive Officer and director Arnon Rosenthal sold 72,606 shares of common stock on September 3, 2026 at a weighted average price of $2.6647 per share, with trades occurring between $2.49 and $2.75. The sale was made to satisfy the reporting person’s tax obligations related to vesting restricted stock units. After this transaction, he directly holds 2,294,600 shares of Alector common stock and also reports additional indirect holdings as trustee of several family trusts.
Alector, Inc. (ALEC) director and Chief Executive Officer Arnon Rosenthal reported a series of bona fide gift transfers of Alector common stock among family trusts on August 19, 2026. An indirect holding of 1,050,000 shares held by The Rosenthal Family Revocable Trust was gifted, while three separate family trusts each received 350,000 shares, all with a reported price of $0.0000 per share. After these transactions, Rosenthal reported 2,367,206 shares held directly, with the referenced trusts holding additional shares indirectly for which he serves as trustee.
Wong-Sarad Grace reported acquisition or exercise transactions in this Form 4 filing.
Alector, Inc. reported that Principal Accounting Officer Grace Wong-Sarad received an award of 20,000 shares of common stock in the form of restricted stock units. These RSUs vest in 12 equal quarterly installments beginning on September 1, 2026. After this grant, she holds 115,461 shares of common stock directly, showing her equity-based compensation and alignment with the company’s performance over time.
Yaffe Kristine reported acquisition or exercise transactions in this Form 4 filing.
Alector director Kristine Yaffe received new equity awards as part of her compensation. She was granted 28,700 restricted stock units representing shares of common stock, which vest on the earlier of June 17, 2027 or the date of Alector’s next annual meeting of stockholders.
She also received stock options for 9,450 shares of common stock, expiring on June 16, 2036. These options vest in 12 equal monthly installments beginning July 17, 2026, or fully on the earlier of the one-year anniversary of the grant date or the next annual meeting. Following the RSU grant, she directly holds 124,109 shares of common stock.
SCHELLER RICHARD H reported acquisition or exercise transactions in this Form 4 filing.
Alector, Inc. director Richard H. Scheller reported equity compensation awards. He received 28,700 shares of Common Stock in the form of restricted stock units that vest on the earlier of June 17, 2027 or the company’s next annual stockholder meeting. Following this grant, he directly holds 134,899 shares of common stock.
He was also granted a stock option for 9,450 shares of common stock. This option vests in 12 equal monthly installments beginning July 17, 2026, or fully on the earlier of the one-year anniversary of grant or the next annual meeting, and expires on June 16, 2036.
Hammond Paula reported acquisition or exercise transactions in this Form 4 filing.
Alector, Inc. director Paula Hammond received new equity awards in the form of restricted stock units and stock options. She was granted 28,700 RSUs that vest on the earlier of June 17, 2027 or the company’s next annual stockholder meeting. She also received a stock option covering 9,450 shares of common stock, vesting in 12 equal monthly installments beginning July 17, 2026, with full vesting no later than the earlier of one year from grant or the next annual meeting. Following these awards, Hammond directly holds 103,609 shares of Alector common stock.
GAROFALO ELIZABETH A. reported acquisition or exercise transactions in this Form 4 filing.
Alector, Inc. director Elizabeth A. Garofalo received new equity compensation on June 17, 2026. She was granted 28,700 shares of Common Stock in the form of restricted stock units that vest on the earlier of June 17, 2027 or the date of Alector’s next annual stockholder meeting.
On the same date, she was also granted stock options covering 9,450 shares of Common Stock. These options vest 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 stockholder meeting, and expire on June 16, 2036. Following these awards, she directly holds 118,650 shares of Common Stock and 9,450 stock options.
Altmeyer Mark reported acquisition or exercise transactions in this Form 4 filing.
Alector, Inc. director Mark Altmeyer reported equity awards consisting of restricted stock units and stock options. He received 28,700 RSUs representing shares of common stock, which vest on the earlier of June 17, 2027 or the company’s next annual stockholder meeting. He was also granted options for 9,450 shares of common stock, vesting in 12 equal monthly installments beginning July 17, 2026, or in full on the earlier of one year from grant or the next annual meeting. Following these awards, he directly holds 98,650 shares of common stock and 9,450 stock options.
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.
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.
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.
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.
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.
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.
Alector, Inc. principal accounting officer Grace Wong-Sarad reported an open-market sale of 1,820 shares of common stock at $2.65 per share. The trade was executed under a pre-arranged Rule 10b5-1 Trading Plan. After the sale, she continues to hold 104,645 shares directly.
Rosenthal Arnon reported acquisition or exercise transactions in this Form 4 filing.
Alector, Inc. chief executive officer Arnon Rosenthal reported an equity compensation grant of restricted stock units representing 116,246 shares of common stock on March 13, 2026. The RSUs were granted at no cash cost and will vest in two equal installments: one half on September 1, 2026 and one half on March 1, 2027.
Following the award, Rosenthal directly owns 2,454,422 common shares. He also reports additional indirect holdings through family trusts, including shares held by The Rosenthal Family Revocable Trust and by three 2007 trusts for family members.
Alector, Inc. reported that its CFO & Chief Business Officer, Neil Lindsay Berkley, received an equity award of 54,600 shares of Common Stock in the form of restricted stock units. These RSUs were granted at no cash cost and increase his direct holdings to 399,260 shares.
The award vests over time: one half of the RSUs will vest on September 1, 2026, and the remaining half will vest on March 1, 2027. Vesting means the units convert into unrestricted shares if the applicable service-based conditions are satisfied.
Alector, Inc. principal accounting officer Grace Wong-Sarad reported an open-market sale of 1,000 shares of common stock at $2.65 per share. The transaction took place on March 10, 2026, and she now holds 106,465 shares directly. The filing notes the sale was made under a Rule 10b5-1 trading plan adopted on September 5, 2025, indicating it was pre-scheduled rather than a discretionary trade.
Alector, Inc. reported that Principal Accounting Officer Grace Wong-Sarad sold 3,367 shares of common stock in an open-market transaction. The sale occurred on March 3, 2026 at a weighted average price of $2.0826 per share, with individual sale prices ranging from $2.06 to $2.12. These transactions were made under a pre-established Rule 10b5-1 trading plan adopted on September 5, 2025. After this sale, Wong-Sarad directly owned 107,465 shares of Alector common stock.
Alector, Inc. Principal Accounting Officer Grace Wong-Sarad reported an open-market sale of 8,071 shares of common stock. The weighted average sale price was $2.1234 per share, with individual trades executed between $2.04 and $2.37 per share.
According to the disclosure, the shares were sold to satisfy the reporting person's tax obligations arising from the vesting of restricted stock units. After this transaction, the officer directly owned 110,832 shares of Alector common stock.
Alector, Inc. Chief Executive Officer Arnon Rosenthal reported an open-market sale of 81,864 shares of common stock on March 2, 2026 at a weighted average price of $2.1233 per share. According to the footnotes, the shares were sold to satisfy his tax obligations arising from the vesting of restricted stock units.
After this sale, Rosenthal directly owns 2,338,176 shares of Alector common stock. He also has indirect holdings through family trusts, including 1,972,875 shares held by The Rosenthal Family Revocable Trust and 652,500 shares each held by the Adi Rosenthal 2007 Trust, the Noam Rosenthal 2007 Trust, and the Shani Rosenthal 2007 Trust, for which he serves as trustee.
Alector, Inc. executive Neil Lindsay Berkley, the CFO and Chief Business Officer, reported an open-market sale of common stock. He sold 29,649 shares on March 2, 2026 at a weighted average price of $2.1233 per share to cover tax obligations from vesting RSUs. After this transaction, he continued to hold 344,660 shares of Alector common stock directly.
Alector, Inc. Principal Accounting Officer Grace Wong-Sarad sold 4,079 shares of common stock in an open-market transaction at a price of $2.50 per share. Following this sale, she directly owns 118,903 shares of Alector common stock.
The filing notes that this sale was effected under a pre-arranged Rule 10b5-1 trading plan adopted by the reporting person on September 5, 2025, which is designed to systematically execute trades over time.
Alector, Inc. principal accounting officer Grace Wong-Sarad reported selling 4,753 shares of Alector common stock on 12/05/2025 at a price of $1.21 per share. The transaction was made under a Rule 10b5-1 trading plan adopted by her on 09/05/2025.
After this sale, she directly beneficially owns 122,982 shares of Alector common stock.
Alector (ALEC) reported an insider equity award. Principal Accounting Officer Grace Wong-Sarad filed a Form 4 for transactions on 11/10/2025.
The filing shows 32,343 restricted stock units acquired at $0. RSUs vest in 12 equal quarterly installments beginning on December 1, 2025. Following the award, beneficial ownership stands at 135,791 shares, held directly.
It also reports an employee stock option grant covering 48,535 shares at an exercise price of $1.31, expiring on 11/09/2035. Options vest in 48 equal monthly installments beginning on December 10, 2025.
Alector (ALEC) reported an insider equity award on Form 4. An officer (Chief Bus Ofcr & Interim CFO) acquired 65,000 restricted stock units on 11/10/2025 at $0, and was granted an employee stock option for 195,000 shares at an exercise price of $1.31, expiring 11/09/2035.
The RSUs vest in 12 equal quarterly installments beginning December 1, 2025. The option vests in 48 equal monthly installments beginning December 10, 2025. Following these awards, beneficial ownership was 411,570 shares, held directly.
Alector, Inc. (ALEC) reported insider equity awards to its Chief Executive Officer and Director. On 11/10/2025, the reporting person acquired 174,167 shares of Common Stock in the form of RSUs at $0. These RSUs vest in 12 equal quarterly installments beginning on December 1, 2025.
The reporting person was also granted an employee stock option to purchase 522,500 shares at an exercise price of $1.31 per share, vesting in 48 equal monthly installments beginning on December 10, 2025, and expiring on November 9, 2035. Following the reported transactions, the reporting person directly beneficially owned 2,524,387 shares. Additional shares are held indirectly through family trusts, as noted in the footnotes.