Alector, Inc.
Alector, Inc. (ALEC) Insider Trading
Form 4 buy vs sell counts, ratio, and sentiment — switch this quarter or last 12 months; chart and transactions below.
SEC EDGAR · FMP · ALEC · as of Jun 9, 2026
Activity summary
Buy transactions
0
P-Purchase only
Sell transactions
17
12 Months
Buy/Sell ratio
0.00
Buy/Sell (by trades)
Overall sentiment
Alector, Inc. insiders have been primarily selling shares over the past 12 Months. Selling activity is often driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment toward the company.
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · Buy = P-Purchase only · Sell = S-Sale only
As of Jun 9, 2026
ALEC insider buying and selling by quarter
ALEC insider selling · ALEC insider buying stocks · quarterly insider activity
Mobile shows last 4Q · Desktop shows full 8Q
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · last 8 quarters
As of Jun 9, 2026
Active insiders
Most active in past 12 months · ALEC ceo insider trading
Showing all insiders · Click a card to filter the transactions table below
▸ Aggregated from reportingName · top 5 by trade count (12M) · no extra API
Recent insider transactions
ALEC executive sell shares · ALEC board member insider trading · ALEC insider trading SEC filing
Scroll horizontally to see all columns
| Date | Insider | Type | Shares | Value | Filing |
|---|---|---|---|---|---|
| Jun 1, 2026 | SCHELLER RICHARD H Director | Award | 10,833 | — | Form 4 |
| Apr 16, 2026 | Wong-Sarad Grace PAO | Sale | 1,820 | $5K | Form 4 |
| Mar 13, 2026 | Rosenthal Arnon CEO · Director | Award | 116,246 | — | Form 4 |
| Mar 15, 2026 | Berkley Neil Lindsay CFO & Chief Business Officer | Award | 54,600 | — | Form 4 |
| Mar 10, 2026 | Wong-Sarad Grace PAO | Sale | 1,000 | $3K | Form 4 |
| Mar 3, 2026 | Wong-Sarad Grace PAO | Sale | 3,367 | $7K | Form 4 |
| Mar 2, 2026 | Wong-Sarad Grace PAO | Sale | 8,071 | $17K | Form 4 |
| Mar 2, 2026 | Rosenthal Arnon CEO · Director | Sale | 81,864 | $174K | Form 4 |
| Mar 2, 2026 | Berkley Neil Lindsay CFO & Chief Business Officer | Sale | 29,649 | $63K | Form 4 |
| Feb 26, 2026 | Wong-Sarad Grace PAO | Sale | 4,079 | $10K | Form 4 |
| Dec 5, 2025 | Wong-Sarad Grace PAO | Sale | 4,753 | $6K | Form 4 |
| Dec 3, 2025 | Wong-Sarad Grace PAO | Sale | 8,056 | $9K | Form 4 |
| Dec 3, 2025 | Rosenthal Arnon CEO · Director | Sale | 104,347 | $117K | Form 4 |
| Dec 3, 2025 | Kenkare-Mitra Sara President and Head of R&D | Sale | 41,687 | $47K | Form 4 |
| Dec 3, 2025 | Berkley Neil Lindsay Chief Bus Ofcr & Interim CFO | Sale | 37,261 | $42K | Form 4 |
| Nov 10, 2025 | Wong-Sarad Grace PAO | Award | 32,343 | — | Form 4 |
| Nov 10, 2025 | Berkley Neil Lindsay Chief Bus Ofcr & Interim CFO | Award | 65,000 | — | Form 4 |
| Nov 10, 2025 | Rosenthal Arnon CEO · Director | Award | 174,167 | — | Form 4 |
| Sep 2, 2025 | Wong-Sarad Grace PAO | Sale | 5,910 | $15K | Form 4 |
| Sep 2, 2025 | Berkley Neil Lindsay Principal Financial Officer | Sale | 15,842 | $40K | Form 4 |
| Sep 2, 2025 | Kenkare-Mitra Sara President and Head of R&D | Sale | 23,638 | $59K | Form 4 |
| Sep 2, 2025 | Rosenthal Arnon CEO · Director | Sale | 51,562 | $129K | Form 4 |
| Aug 26, 2025 | Hammond Paula Director | Sale | 14,000 | $33K | Form 4 |
| Jul 1, 2025 | Kenkare-Mitra Sara President and Head of R&D | Award | 54,725 | — | Form 4 |
| Jul 1, 2025 | Rosenthal Arnon CEO · Director | Award | 137,125 | — | Form 4 |
Berkley Neil Lindsay
CFO & Chief Business Officer
Date
Mar 15
Shares
54,600
Price
—
Value
—
Berkley Neil Lindsay
CFO & Chief Business Officer
Date
Mar 2
Shares
29,649
Price
$2.12
Value
$63K
Kenkare-Mitra Sara
President and Head of R&D
Date
Dec 3
Shares
41,687
Price
$1.12
Value
$47K
Berkley Neil Lindsay
Chief Bus Ofcr & Interim CFO
Date
Dec 3
Shares
37,261
Price
$1.12
Value
$42K
Berkley Neil Lindsay
Chief Bus Ofcr & Interim CFO
Date
Nov 10
Shares
65,000
Price
—
Value
—
Berkley Neil Lindsay
Principal Financial Officer
Date
Sep 2
Shares
15,842
Price
$2.50
Value
$40K
Kenkare-Mitra Sara
President and Head of R&D
Date
Sep 2
Shares
23,638
Price
$2.50
Value
$59K
Kenkare-Mitra Sara
President and Head of R&D
Date
Jul 1
Shares
54,725
Price
—
Value
—
⚡ = value ≥ $1M · Award/Option price shows — · formType=4 · securityName=Common Stock · url → sec.gov/Archives/edgar
▸ Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —
About ALEC insider trading
ALEC insider trades
Alector, Inc. (ALEC) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including Wong-Sarad Grace (PAO), Rosenthal Arnon (CEO · Director), Berkley Neil Lindsay (CFO & Chief Business Officer). Over the past 12 months, 5 insiders have filed transactions with the SEC. ALEC insiders have been primarily selling, which may reflect pre-scheduled Rule 10b5-1 plan executions.
For Alector, Inc.'s institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →
Frequently asked questions
ALEC insider trading · 5 questionsThe insiders of Alector, Inc. (ALEC) include executives and directors such as Wong-Sarad Grace (PAO), Rosenthal Arnon (CEO · Director), Berkley Neil Lindsay (CFO & Chief Business Officer), among others. Over the past 12 months, 5 insiders have filed Form 4 transactions with the SEC. Insider transactions are required to be reported within 2 business days of the trade date.
▸ Source: FMP /stable/insider-trading/search · SEC EDGAR Form 3 & 4 · acquisitionOrDisposition A=Buy, D=Sell · RSU vesting (M-Exempt) excluded from sentiment bar · As of Jun 9, 2026