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sellWeak cluster of 3

Eric J Hyllengren sold $15k of ATRA

EVP, CFO and COO at Atara Biotherapeutics, Inc.. 1,364 shares at an average of $11.20, traded Nov 18, 2024, filed Nov 20, 2024.

Warning score
37
Value
$15k
1,364 shares
Holdings after
23,392
-6% from before
From 52-week low
-
no price yet
From 52-week high
-
no price yet

Score components

  • Role
    CFO
    +22
  • Trade size
    $15k at market
    0
  • Share of holdings sold
    Sold 5.5% of holdings
    0
  • Cluster
    3 insiders selling within 14 days
    +15

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 +6.7%, 3m -27.2%, 6m -35.4%.

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.

ATRAOct 9, 2026 · close 9.48
Since filing Nov 20, 2024: -11.2%SPY +34.9% · excess -46.1%

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 0000905148-24-003242, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Nov 18, 2024SOpen-market sale
Common Stock
-1,364$11.20$15k23,392Nov 20, 2024

Related signals

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

ScoreCompanyInsiderValueHoldingsFiled
50Moderate
ATRAbuy
Atara Biotherapeutics, Inc.
Brian N Cherry
director
$1000k
104,166 shares
+167%
31Weak
ATRAsell
Atara Biotherapeutics, Inc.
AnhCo Nguyen
President and CEO
$41k
5,062 shares
-4%
30Weak
ATRAsell 3
Atara Biotherapeutics, Inc.
Yanina Grant-Huerta
Chief Accounting Officer
$22k
2,414 shares
-5%
47Moderate
ATRAsell 3
Atara Biotherapeutics, Inc.
AnhCo Nguyen
President and CEO
$48k
5,241 shares
-4%
46Moderate
ATRAbuy
Atara Biotherapeutics, Inc.
EcoR1 Capital, LLC
owner
$4.7M
507,407 shares
+49%
60Notable
ATRAsell 3
Atara Biotherapeutics, Inc.
James Huang
director, owner
$3.2M
313,446 shares
-24%
33Weak
ATRAsell 2
Atara Biotherapeutics, Inc.
AnhCo Nguyen
President and CEO
$15k
2,996 shares
-5%
23Weak
ATRAsell 2
Atara Biotherapeutics, Inc.
Yanina Grant-Huerta
Chief Accounting Officer
$11k
2,104 shares
-6%
33Weak
ATRAsell
Atara Biotherapeutics, Inc.
James Huang
director, owner
$489k
80,554 shares
-6%
23Weak
ATRAsell 2
Atara Biotherapeutics, Inc.
Yanina Grant-Huerta
Chief Accounting Officer
$24k
1,804 shares
-5%

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.

Eric J Hyllengren sold $15k of ATRA | InsiderTell