ATRA - Latest News
Atara Biotherapeutics, Inc. (ATRA), operates in Healthcare / Biotechnology, trades on NASDAQ.
Market capitalization stands near $94.7M. Beta to the broader market is 0.12.
The article list below shows the most recent ATRA headlines from major financial news vendors. For options traders, the most actionable items are earnings releases, analyst rating changes, M&A activity, and regulatory filings - each can drive a meaningful repricing of implied volatility and shift dealer hedging flow. Pair the news context with the implied-volatility skew and gamma exposure views to see whether the options market has already priced in the headline.
Recent ATRA Headlines
The Gross Law Firm Reminds Shareholders of a Lead Plaintiff Deadline of May 22, 2026 in Atara Biotherapeutics, Inc. Lawsuit - ATRA
prnewswire.com - May 26, 2026
NEW YORK, May 26, 2026 /PRNewswire/ -- The Gross Law Firm issues the following notice to shareholders of Atara Biotherapeutics, Inc. (NASDAQ: ATRA).
ATRA Deadline: Rosen Law Firm Urges Atara Biotherapeutics, Inc. (NASDAQ: ATRA) Stockholders with Losses in Excess of $100K to Contact the Firm for Information About Their Rights
gurufocus.com - May 22, 2026
Rosen Law Firm, a global investor rights law firm, reminds investors about a class action lawsuit on behalf of purchasers of securities of Atara Bioth
ATRA Deadline: Rosen Law Firm Urges Atara Biotherapeutics, Inc. (NASDAQ: ATRA) Stockholders with Losses in Excess of $100K to Contact the Firm for Information About Their Rights
businesswire.com - May 22, 2026
NEW YORK--(BUSINESS WIRE)--Rosen Law Firm, a global investor rights law firm, reminds investors about a class action lawsuit on behalf of purchasers o
Atara Biotherapeutics, Inc. (ATRA) Shareholders Who Lost Money Have Opportunity to Lead Securities Fraud Lawsuit
prnewswire.com - May 22, 2026
LOS ANGELES, May 22, 2026 /PRNewswire/ -- Glancy Prongay Wolke & Rotter LLP announces that investors with losses have opportunity to lead the securiti
Bronstein, Gewirtz & Grossman LLC Urges Atara Biotherapeutics, Inc. Investors to Act: Class Action Filed Alleging Investor Harm
newsfilecorp.com - May 22, 2026
New York, New York--(Newsfile Corp. - May 22, 2026) - Bronstein, Gewirtz & Grossman, LLC, a nationally recognized investor-rights law firm, announces
How News Affects ATRA Options Pricing
Headlines and scheduled events drive implied volatility in two distinct ways. Pre-event, IV typically inflates as uncertainty about the outcome rises; this is the implied-volatility expansion that creates the long-vol setup. Post-event, IV typically contracts sharply as uncertainty resolves; this is IV crush, which makes premium-selling structures profitable when they survive the underlying move. The size of the crush depends on how stretched pre-event IV is relative to the realized move. Track ATRA's implied vs realized volatility over the news cycle to size pre-event vs post-event positioning. For ticker-level dealer positioning context, the gamma exposure view shows whether dealers are positioned to amplify or dampen post-news moves.
Frequently asked ATRA news questions
- What is the latest ATRA news headline?
- The most recent ATRA headline (May 26, 2026) is "The Gross Law Firm Reminds Shareholders of a Lead Plaintiff Deadline of May 22, 2026 in Atara Biotherapeutics, Inc. Lawsuit - ATRA". The five most recent stories with summaries and publication times are listed above, sourced from major financial news vendors.
- How fresh is the ATRA news on this page?
- News rows refresh roughly every 30 minutes during the trading day. The five most recent headlines are listed in publication-time order. Press releases from the company itself typically appear within minutes of the wire release; third-party reporting may lag by 30-60 minutes depending on the source.
- What ATRA news moves options pricing?
- Three categories move single-name IV most aggressively: scheduled earnings releases (priced into pre-event IV, crushed post-event), unscheduled M&A or strategic announcements (rapid IV expansion, slower decay), and regulatory or legal events (drug-trial readouts, antitrust filings, FDA approvals). Routine news flow (analyst commentary, sector rotation) typically does not move IV meaningfully unless it triggers a cluster of rating changes.
- How can I track unusual ATRA options activity related to news?
- Unusual options activity often precedes news by hours to days; the canonical signals are volume substantially above the trailing average concentrated in a small number of strikes, atypical put/call skew, and aggressive execution (at-the-ask sweeps or block prints). Cross-reference the per-ticker gamma-exposure and volume-history pages with the news flow above to triangulate informed vs uninformed flow.