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About Alector, Inc. (ALEC)
The SEC lists Alector, Inc. under CIK 0001653087, in biological products (no diagnostic substances). It is grouped with Health Care companies on this site.
ALEC Form 4 activity by transaction type, last 90 days
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market sale | 5 | 111,303 | $296K |
| Bona-fide gift | 4 | 2,100,000 |
Dollar totals cover purchases and sales only (codes P and S). Grants, option exercises, gifts and tax withholding are counted in shares, because none of them is a trade at a market price.
ALEC insider transactions (Form 4)
4552 Form 4 filings on record, the earliest from Oct 2, 2024, newest first. Filing history page 1 of 2.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Grace Wong-Sarad - Officer | Open-market sale | Common Stock | 656 | $2.75 | $2K | |
| Grace Wong-Sarad - Officer | Open-market sale | Common Stock | 5,165 | $2.67 footnote F3 | $14K | |
| Grace Wong-Sarad - Officer | Open-market sale | Common Stock | 3,625 footnote F1 | $2.51 footnote F4 | $9K | |
| ||||||
| Neil Lindsay Berkley - Officer | Open-market sale | Common Stock | 29,251 | $2.66 footnote F2 | $78K | |
| ||||||
| Arnon Rosenthal - Officer | Open-market sale | Common Stock | 72,606 | $2.66 footnote F2 | $193K | |
| ||||||
| Arnon Rosenthal - Officer | Gift | Common Stock | 1,050,000 | $0.00 | - | |
| Arnon Rosenthal - Officer | Gift | Common Stock | 350,000 | $0.00 | - | |
| Arnon Rosenthal - Officer | Gift | Common Stock | 350,000 | $0.00 | - | |
| Arnon Rosenthal - Officer | Gift | Common Stock | 350,000 | $0.00 | - | |
| Grace Wong-Sarad - Officer | Grant or award | Common Stock | 20,000 footnote F1 | $0.00 | - | |
| ||||||
| Kristine Yaffe | Grant or award | Stock Option (right to buy) | 9,450 | $0.00 | - | |
| Kristine Yaffe | Grant or award | Common Stock | 28,700 footnote F1 | $0.00 | - | |
| ||||||
| Richard H. Scheller | Grant or award | Stock Option (right to buy) | 9,450 | $0.00 | - | |
| Richard H. Scheller | Grant or award | Common Stock | 28,700 footnote F1 | $0.00 | - | |
| ||||||
| Paula Hammond | Grant or award | Common Stock | 28,700 footnote F1 | $0.00 | - | |
| Paula Hammond | Grant or award | Stock Option (right to buy) | 9,450 | $0.00 | - | |
| ||||||
| Elizabeth A. Garofalo | Grant or award | Common Stock | 28,700 footnote F1 | $0.00 | - | |
| Elizabeth A. Garofalo | Grant or award | Stock Option (right to buy) | 9,450 | $0.00 | - | |
| ||||||
| Mark Altmeyer | Grant or award | Common Stock | 28,700 footnote F1 | $0.00 | - | |
| Mark Altmeyer | Grant or award | Stock Option (right to buy) | 9,450 | $0.00 | - | |
| ||||||
| Errol B. Desouza | Grant or award | Common Stock | 28,700 footnote F1 | $0.00 | - | |
| Errol B. Desouza | Grant or award | Stock Option (right to buy) | 9,450 | $0.00 | - | |
| ||||||
| Louis J. Lavigne Jr. | Grant or award | Common Stock | 28,700 footnote F1 | $0.00 | - | |
| Louis J. Lavigne Jr. | Grant or award | Stock Option (right to buy) | 9,450 | $0.00 | - | |
| ||||||
| Richard H. Scheller | Grant or award | Common Stock | 10,833 footnote F1 | $0.00 | - | |
| ||||||
| Arnon Rosenthal - Officer | Open-market sale | Common Stock | 87,216 | $1.97 footnote F2 | $172K | |
| ||||||
| Grace Wong-Sarad - Officer | Open-market sale | Common Stock | 5,709 | $1.97 footnote F2 | $11K | |
| Grace Wong-Sarad - Officer | Open-market sale | Common Stock | 3,475 | $1.88 footnote F4 | $7K | |
| ||||||
| Neil Lindsay Berkley - Officer | Open-market sale | Common Stock | 19,360 | $1.97 footnote F2 | $38K | |
| ||||||
| Grace Wong-Sarad - Officer | Open-market sale | Common Stock | 1,820 | $2.65 | $5K | |
| Arnon Rosenthal - Officer | Grant or award | Common Stock | 116,246 footnote F1 | $0.00 | - | |
| ||||||
| Neil Lindsay Berkley - Officer | Grant or award | Common Stock | 54,600 footnote F1 | $0.00 | - | |
| ||||||
| Grace Wong-Sarad - Officer | Open-market sale | Common Stock | 1,000 | $2.65 | $3K | |
| Grace Wong-Sarad - Officer | Open-market sale | Common Stock | 8,071 | $2.12 footnote F2 | $17K | |
| ||||||
| Arnon Rosenthal - Officer | Open-market sale | Common Stock | 81,864 | $2.12 footnote F2 | $174K | |
| ||||||
| Neil Lindsay Berkley - Officer | Open-market sale | Common Stock | 29,649 | $2.12 footnote F2 | $63K | |
| ||||||
| Grace Wong-Sarad - Officer | Open-market sale | Common Stock | 4,079 | $2.50 | $10K | |
| Neil Lindsay Berkley - Officer | Open-market sale | Common Stock | 37,261 | $1.12 footnote F2 | $42K | |
| ||||||
| Grace Wong-Sarad - Officer | Open-market sale | Common Stock | 8,056 | $1.12 footnote F2 | $9K | |
| ||||||
| Sara Kenkare-Mitra - Officer | Open-market sale | Common Stock | 41,687 | $1.12 footnote F2 | $47K | |
| ||||||
| Arnon Rosenthal - Officer | Open-market sale | Common Stock | 104,347 | $1.12 footnote F2 | $117K | |
| ||||||
| Neil Lindsay Berkley - Officer | Grant or award | Common Stock | 65,000 footnote F1 | $0.00 | - | |
| Neil Lindsay Berkley - Officer | Grant or award | Employee Stock Option (right to buy) | 195,000 | $0.00 | - | |
| ||||||
| Grace Wong-Sarad - Officer | Grant or award | Common Stock | 32,343 footnote F1 | $0.00 | - | |
| Grace Wong-Sarad - Officer | Grant or award | Employee Stock Option (right to buy) | 48,535 | $0.00 | - | |
| ||||||
Item 1.01, 2.02, 7.01, 8.01, 9.01
Item 2.02, 9.01
Item 1.02
Item 5.07
Recent ALEC Form 144 notices of proposed sale
3An insider files Form 144 before selling restricted or control stock. It announces a planned sale. If the sale goes ahead, it shows up later on a Form 4.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| GRACE WONG-SARAD | Officer | 3,625 | $9K | View on EDGAR | |
| GRACE WONG-SARAD | Officer | 656 | $2K |
ALEC insider trading FAQ
What is the latest insider trade for ALEC?
Alector, Inc. (ALEC) had 4 insider filings in the last 90 days, with the most recent on 2026-09-04. The full record for ALEC runs to 52 Form 4 filings, the earliest from 2024-10-02. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying ALEC stock?
No insider purchases of ALEC were filed in the last 90 days.
How many insiders are selling ALEC stock?
5 insider sales of ALEC were filed in the last 90 days, totaling $296K.
Where can I see ALEC SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects ALEC Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
More Health Care companies with insider activity
Recent insider filings
10The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.
- - Grace Wong-Sarad view on EDGAR
- - Neil Lindsay Berkley view on EDGAR
- - Arnon Rosenthal view on EDGAR
- - Arnon Rosenthal view on EDGAR
- - Grace Wong-Sarad view on EDGAR
- - Kristine Yaffe view on EDGAR
- - Richard H. Scheller view on EDGAR
- - Paula Hammond view on EDGAR
- - Elizabeth A. Garofalo view on EDGAR
Related companies with recent insider activity
Learn more
- Insider selling: signal or noise?
- Why most insider sales are routine, and the few patterns worth a second look.
- Form 144 vs Form 4
- A Form 144 announces a planned sale; the Form 4 reports it after it happens.
- Insider activity in Health Care
- Where ALEC's peers are being bought and sold.
- Every recent Form 4
- The market-wide feed, updated as filings arrive from SEC EDGAR.
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