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sellWeak

David R. Horn sold $12k of SEER

PRESIDENT & CFO at Seer, Inc.. 7,303 shares at an average of $1.69, traded May 20, 2026, filed May 21, 2026.

Warning score
22
Value
$12k
7,303 shares
Holdings after
493,959
-1% from before
From 52-week low
+1%
low $1.66, close $1.68
From 52-week high
-29%
high $2.37, as of May 20, 2026

Score components

  • Role
    CFO
    +22
  • Trade size
    $12k at market
    0
  • Share of holdings sold
    Sold 1.5% of holdings
    0
  • Cluster
    No other insider selling within 14 days
    0

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.

SEEROct 12, 2026 · close 2.15
Since filing May 21, 2026: +21.5%SPY +5.3% · excess +16.2%

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 0001834217-26-000006, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
May 20, 2026SOpen-market sale
Class A Common Stock
-7,303$1.69$12k493,959May 21, 2026

Related signals

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

ScoreCompanyInsiderValueHoldingsFiled
22Weak
SEERsell
Seer, Inc.
David R. Horn
PRESIDENT & CFO
$15k
7,309 shares
-1%
0Weak
SEERsell10b5-1
Seer, Inc.
Dipchand Nishar
director
$23k
10,660 shares
-15%
40Moderate
SEERsell 2
Seer, Inc.
Omid Farokhzad
CEO AND CHAIR
$49k
24,385 shares
-1%
30Weak
SEERsell 2
Seer, Inc.
David R. Horn
PRESIDENT & CFO
$15k
7,743 shares
-2%
41Moderate
SEERsell 2
Seer, Inc.
Omid Farokhzad
CEO AND CHAIR
$67k
33,838 shares
-3%
30Weak
SEERsell 2
Seer, Inc.
David R. Horn
PRESIDENT & CFO
$13k
6,797 shares
-2%
41Moderate
SEERsell 2
Seer, Inc.
Omid Farokhzad
CEO AND CHAIR
$69k
33,992 shares
-3%
30Weak
SEERsell 2
Seer, Inc.
David R. Horn
PRESIDENT & CFO
$14k
6,827 shares
-2%
13Weak
SEERsell10b5-1
Seer, Inc.
Dipchand Nishar
director
$63k
30,253 shares
-38%
41Moderate
SEERsell 2
Seer, Inc.
Omid Farokhzad
CEO AND CHAIR
$70k
33,663 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.

David R. Horn sold $12k of SEER | InsiderTell