Explore more topics
SEC Form 4 research

Alector, Inc. insider transactions

Inspect Alector, Inc.'s public SEC insider acquisitions and sales, reporting owners and source receipts.

As of 2026-10-15T08:02:39.132Z

Issuer CIK
0001653087
Reporting owners
31
Officers and directors
18
Jump to a section

What is a Form 4?

Animation: what a Form 4 is, shown with one real example. Sonic Automotive (SAH) reporting owner Paul P. Rusnak bought 13,701 shares at $59.78 on Wednesday, October 7, 2026, transaction code P, an open-market purchase (S is a sale and A is an award from the company). A timeline marks the SEC's two-business-day filing deadline, which ends Friday, October 9. The SEC accepted the Form 4 at 4:33:21 PM ET on October 9, and NexusTrade treats it as public one minute later, at 4:34:21 PM ET. A lamp for NexusTrade's InsiderTrades indicator stays off from the trade date until that moment, then counts one purchase worth 13,701 × $59.78 = $819,045.78.
In this example the shares were bought on Oct 7, 2026, and NexusTrade's InsiderTrades indicator can count the purchase starting at 4:34:21 PM ET on Oct 9, one minute after the SEC accepted the Form 4.

A Form 4 is the SEC filing a company insider, such as an officer, director or 10% owner, uses to report a trade in the company's stock, generally within two business days. The animation follows one real filing as an example: Paul P. Rusnak's purchase of Sonic Automotive (SAH) shares on October 7, 2026.

The same reading applies to every row on this page. The trade date is when the shares changed hands. The available date is when NexusTrade treats the filing as public, and a NexusTrade InsiderTrades indicator counts a purchase (code P) or sale (code S) only from that moment. Code A awards are not counted as purchases.

Read one actual disclosure before using it

Show the table · 1 row, 7 columns

Scroll sideways to compare all columns. Select a heading to sort.

2026-09-052026-09-04Wong-Sarad GraceS3,625$2.51Not reported

First displayed source row from Recent insider disclosures. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-09-04 and its public availability date is 2026-09-05. Subtracting those calendar dates gives 1 day of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code S: a sale. A purchase-following rule excludes this sale even if the reported dollar amount is large.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

SEC accession 0001193125-26-383858 ↗SEC accession 0001193125-26-383858 ↗SEC accession 0001193125-26-383858 ↗

Recent insider disclosures

This table includes purchases, sales and awards in the public filing record. Awards and open-market purchases are distinct transaction codes. For historical research, use the public availability date to determine when the transaction was knowable.

Read code P as a purchase, S as a sale and A as an award. An award is an acquisition, but it is not an open-market purchase. Open the filing receipt to check the transaction details.

Show the table · 5 rows, 7 columns

Scroll sideways to compare all columns. Select a heading to sort.

2026-09-052026-09-04Wong-Sarad GraceS3,625$2.51Not reported
2026-09-052026-09-03Wong-Sarad GraceS5,165$2.67Not reported
2026-09-052026-09-02Wong-Sarad GraceS656$2.75Not reported
2026-09-052026-09-03Rosenthal ArnonS72,606$2.66Not reported
2026-09-052026-09-03Berkley Neil LindsayS29,251$2.66Not reported

Most recent 90-day source activity, up to 50 rows. No rows means no matching recent records, not no historical activity.

Officers and directors in the directory

Inspect all 20 displayed rows: Officers and directors in the directory

Scroll sideways to compare all columns. Select a heading to sort.

Romano Gary000179977913
SULIMAN SHEHNAAZ000171307018
King Robert000163526416
Rosenthal Arnon000175777041
GRASSO MARC000174889414
ORBIMED CAPITAL LLC0001157524113
Wehner David M.000153496597
GORDON CARL L0001282930152
SCHELLER RICHARD H0001214133325
Berkley Neil Lindsay00020752985
Hammond Paula00018053482
Kenkare-Mitra Sara000189559212
MCGUIRE TERRANCE0001117003120
Oney Sabah000175777611
ORBIMED ADVISORS LLC00010559511,020
OrbiMed Capital GP IV LLC0001502240195
Paul Robert000175796458
Wong-Sarad Grace000207466713
Yaffe Kristine00017838952
Yu Calvin000175779910
Romano Gary ↗SULIMAN SHEHNAAZ ↗King Robert ↗Rosenthal Arnon ↗GRASSO MARC ↗ORBIMED CAPITAL LLC ↗Wehner David M. ↗GORDON CARL L ↗SCHELLER RICHARD H ↗Berkley Neil Lindsay ↗Hammond Paula ↗Kenkare-Mitra Sara ↗MCGUIRE TERRANCE ↗Oney Sabah ↗ORBIMED ADVISORS LLC ↗OrbiMed Capital GP IV LLC ↗Paul Robert ↗Wong-Sarad Grace ↗Yaffe Kristine ↗Yu Calvin ↗

Which transactions qualify for the company tracker

The company strategy uses verified officers and directors with qualifying acquisitions at this issuer. Other reporting owners may appear in source records without becoming strategy signals.

Strategy eligibility is held while filing coverage is unresolved.

Historical follower simulations are separate from these source transactions. They do not establish live trading results.