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sellWeak cluster of 410b5-1 plan

Grace Wong-Sarad sold $5,751 of ALEC

Principal Accounting Officer at Alector, Inc.. 4,753 shares at an average of $1.21, traded Dec 5, 2025, filed Dec 8, 2025.

Warning score
10
Value
$5,751
4,753 shares
Holdings after
122,982
-4% from before
From 52-week low
+35%
low $0.90, close $1.22
From 52-week high
-63%
high $3.32, as of Dec 5, 2025

Score components

  • Role
    Officer
    +15
  • Trade size
    $6k at market
    0
  • Share of holdings sold
    Sold 3.7% of holdings
    0
  • Cluster
    4 insiders selling within 14 days
    +15
  • 10b5-1 plan
    Pre-scheduled under a 10b5-1 plan
    -20

What happened after comparable sells

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

This signal so far: 1m +44.3%, 3m +79.5%, 6m +34.4%.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

ALECOct 13, 2026 · close 1.87
Since filing Dec 8, 2025: +53.3%SPY +15.0% · excess +38.2%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0002074667-25-000008, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Dec 5, 2025SOpen-market sale
Common Stock10b5-1
-4,753$1.21$5,751122,982Dec 8, 2025

Related signals

Other insiders at Alector, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
46Moderate
ALECsell 3
Alector, Inc.
Neil Lindsay Berkley
CFO & Chief Business Officer
$78k
29,251 shares
-8%
52Moderate
ALECsell 3
Alector, Inc.
Arnon Rosenthal
Chief Executive Officer
$193k
72,606 shares
-3%
10Weak
ALECsell 310b5-1
Alector, Inc.
Grace Wong-Sarad
Principal Accounting Officer
$25k
9,446 shares
-8%
43Moderate
ALECsell 3
Alector, Inc.
Neil Lindsay Berkley
CFO & Chief Business Officer
$38k
19,360 shares
-5%
10Weak
ALECsell 310b5-1
Alector, Inc.
Grace Wong-Sarad
Principal Accounting Officer
$18k
9,184 shares
-9%
51Moderate
ALECsell 3
Alector, Inc.
Arnon Rosenthal
Chief Executive Officer
$172k
87,216 shares
-4%
0Weak
ALECsell10b5-1
Alector, Inc.
Grace Wong-Sarad
Principal Accounting Officer
$4,823
1,820 shares
-2%
10Weak
ALECsell 310b5-1
Alector, Inc.
Grace Wong-Sarad
Principal Accounting Officer
$2,650
1,000 shares
-1%
51Moderate
ALECsell 3
Alector, Inc.
Arnon Rosenthal
Chief Executive Officer
$174k
81,864 shares
-3%
30Weak
ALECsell 3
Alector, Inc.
Grace Wong-Sarad
Principal Accounting Officer
$17k
8,071 shares
-7%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Grace Wong-Sarad sold $5,751 of ALEC | InsiderTell