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sellWeak cluster of 210b5-1 plan

Harold Bernstein sold $393k of MAZE

President, R&D & CMO at Maze Therapeutics, Inc.. 15,000 shares at an average of $26.22, traded May 14, 2026, filed May 18, 2026.

Warning score
29
Value
$393k
15,000 shares
Holdings after
0
-100% from before
From 52-week low
+192%
low $9.06, close $26.43
From 52-week high
-49%
high $51.83, as of May 14, 2026

Score components

  • Role
    President
    +20
  • Trade size
    $393k at market
    +16
  • Share of holdings sold
    Sold 100% of holdings
    +20
  • Cluster
    2 insiders selling within 14 days
    +8
  • Exercise and sell
    Shares came from an option exercise in the same filing
    -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 +1.4%, 3m +14.1%, 6m -.

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.

MAZEOct 12, 2026 · close 27.70
Since filing May 18, 2026: +13.1%SPY +5.9% · excess +7.2%

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 0002050172-26-000021, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
May 14, 2026MOption exercise
Common Stock10b5-1
+15,000$10.42$156k15,000May 18, 2026
May 14, 2026SOpen-market sale
Common Stock10b5-1
-15,000$26.22$393k0May 18, 2026
May 14, 2026MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-15,000$0.00$0222,407May 18, 2026

Related signals

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

ScoreCompanyInsiderValueHoldingsFiled
37Weak
MAZEsell 310b5-1
Maze Therapeutics, Inc.
Harold Bernstein
President, R&D & CMO
$435k
16,141 shares
-100%
64Notable
MAZEsell 310b5-1
Maze Therapeutics, Inc.
Jason Coloma V
Chief Executive Officer
$932k
34,501 shares
-190%
12Weak
MAZEsell 310b5-1
Maze Therapeutics, Inc.
Atul Dandekar
CSBO
$203k
7,500 shares
-19%
48Moderate
MAZEsell 410b5-1
Maze Therapeutics, Inc.
Harold Bernstein
President, R&D & CMO
$255k
9,705 shares
-100%
68Notable
MAZEsell 4
Maze Therapeutics, Inc.
Harold Bernstein
President, R&D & CMO
$270k
10,295 shares
-51%
69Notable
MAZEsell 4
Maze Therapeutics, Inc.
Jason Coloma V
Chief Executive Officer
$594k
22,638 shares
-45%
50Moderate
MAZEsell 4
Maze Therapeutics, Inc.
Phillips Courtney
GC and Corp. Secretary
$105k
3,993 shares
-36%
46Moderate
MAZEsell 4
Maze Therapeutics, Inc.
Atul Dandekar
CSBO
$169k
6,434 shares
-17%
37Weak
MAZEsell 410b5-1
Maze Therapeutics, Inc.
Harold Bernstein
President, R&D & CMO
$426k
16,141 shares
-100%
49Moderate
MAZEsell 410b5-1
Maze Therapeutics, Inc.
Jason Coloma V
Chief Executive Officer
$907k
34,501 shares
-166%

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.

Harold Bernstein sold $393k of MAZE | InsiderTell