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PRE-MKT · 07:20 ET
Market ClerkRecap
Thu Oct 22 · pre-market2 signals on Oct 21108 insider buys this week · $250.3MCIRO short report next: Oct 31The week ahead

ATRA

Atara Biotherapeutics, Inc.
NASDAQ · HEALTH CARE · BIOLOGICAL PRODUCTS, (NO DIAGNOSTIC SUBSTANCES)
9.35
+0.19 +2.07%
USD · close Oct 21

A free account adds a watchlist, alerts when insiders, Congress or short sellers move on your tickers, and a morning brief. Sign up

MKT CAP $93.9MP/E —DIV YIELD —FCF YIELD —REV TTM $6.2M −96.7%NET INCOME −$16.7M −388.0%NET CASH —52W 4.18 – 18.09SEC XBRL · TTM TO Invalid Date

One year, everything drawn on

251 SESSIONS · DAILY CLOSES
19148.453.07Sep 4 · Director buy $1MAug 17 · President and CEO sell $41KAug 12 · 10-Q filed (Q2 2026)Aug 12 · 10-Q filed (Q1 2026)Mar 16 · 10-K filed (FY 2025)Mar 16 · 10-K filed (Q4 2025)Nov 12 · 10-Q filed (Q3 2025)Aug 12 · 10-Q filed (Q2 2025)Aug 12 · 10-Q filed (Q1 2025)Mar 16 · 10-K filed (FY 2024)Mar 16 · 10-K filed (Q4 2024)Nov 12 · 10-Q filed (Q3 2024)Nov 12 · 10-Q filed (Q2 2024)Nov 12 · 10-Q filed (Q1 2024)OCT 2025JAN 2026APRJUL
Insider buyInsider sellCongress buy, above the lineCongress sell, below10-K / 10-Q filedHOVER A MARKER FOR THE FILING
THE WORK ORDER · 2026-10-22
Insiders (90d): $959K net buying · 1 distinct buyer
Shorts (latest report): 427K short · −50K last period
Every line of the math
79PASS

Congress is trading it

No STOCK Act disclosure names ATRA.

Insider activity

ALL 2
DateInsiderTypeValue
Sep 4DirectorBuy$1M
Aug 17President and CEOSell$41K
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