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sellWeak

David R. Horn sold $15k of SEER

PRESIDENT & CFO at Seer, Inc.. 7,309 shares at an average of $2.03, traded Aug 18, 2026, filed Aug 19, 2026.

Warning score
22
Value
$15k
7,309 shares
Holdings after
486,650
-1% from before
From 52-week low
+25%
low $1.62, close $2.02
From 52-week high
-15%
high $2.37, as of Aug 18, 2026

Score components

  • Role
    CFO
    +22
  • Trade size
    $15k 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 Aug 19, 2026: +4.9%SPY +1.4% · excess +3.5%

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 0001834217-26-000008, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Aug 18, 2026SOpen-market sale
Class A Common Stock
-7,309$2.03$15k486,650Aug 19, 2026

Related signals

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

ScoreCompanyInsiderValueHoldingsFiled
0Weak
SEERsell10b5-1
Seer, Inc.
Dipchand Nishar
director
$23k
10,660 shares
-15%
22Weak
SEERsell
Seer, Inc.
David R. Horn
PRESIDENT & CFO
$12k
7,303 shares
-1%
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 $15k of SEER | InsiderTell