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sellWeak cluster of 210b5-1 plan

Alexander Blum sold $231k of U

SVP, Chief Operating Officer at Unity Software Inc.. 12,705 shares at an average of $18.21, traded Feb 25, 2026, filed Feb 27, 2026.

Warning score
21
Value
$231k
12,705 shares
Holdings after
548,425
-2% from before
From 52-week low
+11%
low $16.75, close $18.58
From 52-week high
-62%
high $49.47, as of Feb 25, 2026

Score components

  • Role
    COO
    +20
  • Trade size
    $231k at market
    +13
  • Share of holdings sold
    Sold 2.3% of holdings
    0
  • Cluster
    2 insiders selling within 14 days
    +8
  • 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.

UOct 9, 2026 · close 46.88
Since filing Feb 27, 2026: +157.2%SPY +14.4% · excess +142.8%

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 0002042056-26-000002, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Feb 25, 2026SOpen-market sale
Common Stock10b5-1
-10,164$18.07$184k550,966Feb 27, 2026
Feb 27, 2026SOpen-market sale
Common Stock10b5-1
-2,541$18.76$48k548,425Feb 27, 2026

Related signals

Other insiders at Unity Software Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
25Weak
Usell10b5-1
Unity Software Inc.
Alexander Blum
SVP, Chief Operating Officer
$1.9M
43,556 shares
-6%
35Weak
Usell 2
Unity Software Inc.
Mark Barrysmith
Chief Accounting Officer
$191k
10,578 shares
-3%
60Notable
Usell 4
Unity Software Inc.
Tomer Bar-Zeev
director
$8.7M
175,000 shares
-17%
51Moderate
Usell 4
Unity Software Inc.
Mark Barrysmith
Chief Accounting Officer
$720k
14,407 shares
-4%
40Moderate
Usell 410b5-1
Unity Software Inc.
David Helgason
director
$35M
708,347 shares
-12%
40Moderate
Usell 610b5-1
Unity Software Inc.
Tomer Bar-Zeev
director
$10M
250,000 shares
-19%
24Weak
Usell 610b5-1
Unity Software Inc.
Alexander Blum
SVP, Chief Operating Officer
$84k
1,988 shares
-0%
55Moderate
Usell 6
Unity Software Inc.
Mark Barrysmith
Chief Accounting Officer
$1.8M
43,283 shares
-10%
60Notable
Usell 6
Unity Software Inc.
Alexander Blum
SVP, Chief Operating Officer
$1.7M
40,693 shares
-7%
65Notable
Usell 6
Unity Software Inc.
Matthew S Bromberg
CEO and President
$1.7M
41,025 shares
-3%

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.

Alexander Blum sold $231k of U | InsiderTell