Alector, Inc. (ALEC) insider trading.
In Q3 2026, insiders at Alector, Inc. reported 10 non-derivative transactions on 5 Forms 3, 4 and 5: 0 open-market purchases and 5 sales worth $296K.
- Transactions
- 10
- Purchases (P)
- 0
- Sales (S)
- 5
- Net shares, P minus S
- -111,303
- Insiders
- 3
- Last filed
- 2026-09-04
Insiders
| Insider | Relationship | Transactions | Buys | Sales |
|---|---|---|---|---|
| Rosenthal Arnon | Director, Officer · Chief Executive Officer | 5 | 0 | 1 |
| Wong-Sarad Grace | Officer · Principal Accounting Officer | 4 | 0 | 3 |
| Berkley Neil Lindsay | Officer · CFO & Chief Business Officer | 1 | 0 | 1 |
Transactions
| Date | Insider | Code | Shares | Price | Owned after | Filing |
|---|---|---|---|---|---|---|
| 2026-09-04 | Wong-Sarad Grace | S (D) | 3,625 | $2.51 | 106,015 | Form 4 |
| 2026-09-03 | Berkley Neil Lindsay | S (D) | 29,251 | $2.66 | 350,649 | Form 4 |
| 2026-09-03 | Rosenthal Arnon | S (D) | 72,606 | $2.66 | 2,294,600 | Form 4 |
| 2026-09-03 | Wong-Sarad Grace | S (D) | 5,165 | $2.67 | 109,640 | Form 4 |
| 2026-09-02 | Wong-Sarad Grace | S (D) | 656 | $2.75 | 114,805 | Form 4 |
| 2026-08-19 | Rosenthal Arnon | G (A) | 350,000 | $0 | 1,002,500 | Form 4 |
| 2026-08-19 | Rosenthal Arnon | G (D) | 1,050,000 | $0 | 922,875 | Form 4 |
| 2026-08-19 | Rosenthal Arnon | G (A) | 350,000 | $0 | 1,002,500 | Form 4 |
| 2026-08-19 | Rosenthal Arnon | G (A) | 350,000 | $0 | 1,002,500 | Form 4 |
| 2026-07-09 | Wong-Sarad Grace | A (A) | 20,000 | $0 | 115,461 | Form 4 |
Transaction codes in this quarter
Get ALEC insider transactions through the API
curl "https://sec-api.dev/api/v1/insider-transactions?period=2026q3&cik=1653087&limit=100" \
-H "Authorization: Bearer $SEC_API_KEY"Insider trading API guide · ALEC company page · Alector, Inc. on SEC.gov
Questions
Are insiders buying or selling Alector, Inc. (ALEC)?
In Q3 2026, insiders at Alector, Inc. reported 10 non-derivative transactions on 5 Forms 3, 4 and 5: 0 open-market purchases and 5 sales worth $296K. Grants, tax withholding and option exercises are counted as transactions but are not purchases or sales.
Where do these Alector, Inc. insider trades come from?
From the SEC Insider Transactions Data Sets for Q3 2026, which republish the Forms 3, 4 and 5 filed on EDGAR. Each row links to its filing on SEC.gov.
Plain-text version for agents and LLMs: /insider-trading/alec.md
Independent. Not affiliated with, endorsed by, or sponsored by the U.S. Securities and Exchange Commission. Data is reproduced from public SEC filings and datasets. Not investment advice.