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sellWeak cluster of 310b5-1 plan

Brian Grassadonia sold $2.1M of XYZ

Ecosystem Lead at Block, Inc.. 25,908 shares at an average of $81.64, traded Aug 3, 2026, filed Aug 5, 2026.

Warning score
35
Value
$2.1M
25,908 shares
Holdings after
531,746
-5% from before
From 52-week low
+67%
low $49.09, close $82.09
From 52-week high
-1%
high $83.10, as of Aug 3, 2026

Score components

  • Role
    Officer
    +15
  • Trade size
    $2.1M at market
    +25
  • Share of holdings sold
    Sold 4.6% of holdings
    0
  • Cluster
    3 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.

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.

XYZOct 13, 2026 · close 76.86
Since filing Aug 5, 2026: -8.7%SPY +1.3% · excess -10.0%

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 0001628280-26-053485, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Aug 3, 2026SOpen-market sale
Class A Common Stock10b5-1
-25,508$81.63$2.1M532,146Aug 5, 2026
Aug 3, 2026SOpen-market sale
Class A Common Stock10b5-1
-400$82.23$33k531,746Aug 5, 2026

Related signals

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

ScoreCompanyInsiderValueHoldingsFiled
Pro nowfree Oct 21, 2026
XYZsell10b5-1
Block, Inc.
Anthony Mathew Eisen
director
$1.4M
18,000 shares
-1%
Pro nowfree Oct 16, 2026
XYZsell10b5-1
Block, Inc.
Anthony Mathew Eisen
director
$1.4M
18,000 shares
-1%
20Weak
XYZsell10b5-1
Block, Inc.
Anthony Mathew Eisen
director
$1.4M
18,000 shares
-1%
20Weak
XYZsell10b5-1
Block, Inc.
Anthony Mathew Eisen
director
$1.3M
18,000 shares
-1%
20Weak
XYZsell10b5-1
Block, Inc.
Anthony Mathew Eisen
director
$1.4M
18,000 shares
-1%
20Weak
XYZsell10b5-1
Block, Inc.
Anthony Mathew Eisen
director
$1.4M
18,000 shares
-1%
20Weak
XYZsell10b5-1
Block, Inc.
Anthony Mathew Eisen
director
$1.4M
18,000 shares
-1%
20Weak
XYZsell10b5-1
Block, Inc.
Anthony Mathew Eisen
director
$1.4M
18,000 shares
-1%
20Weak
XYZsell10b5-1
Block, Inc.
Anthony Mathew Eisen
director
$1.4M
18,000 shares
-1%
35Weak
XYZsell 410b5-1
Block, Inc.
Anthony Mathew Eisen
director
$1.5M
18,000 shares
-1%

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.

Brian Grassadonia sold $2.1M of XYZ | InsiderTell