Atara Biotherapeutics' Registration Statement Effective March 25, 2026
Ticker: ATRA · Form: EFFECT · Filed: Mar 26, 2026 · CIK: 0001604464
Complexity: simple
Sentiment: neutral
Topics: capital-raise, registration-statement, effectiveness, biotechnology
TL;DR
**Atara's new securities offering is officially effective, get ready for potential capital raise.**
AI Summary
The SEC has declared the registration statement for Atara Biotherapeutics, Inc. (CIK: 0001604464) effective as of March 25, 2026. This means the company can now proceed with its planned offering of securities under File No. 333-294377. For investors, this is a procedural step indicating the company is moving forward with a capital raise, which could dilute existing shares but also fund future operations and growth.
Why It Matters
This filing signals that Atara Biotherapeutics is cleared to issue new securities, which could impact the stock price through potential dilution or by providing capital for strategic initiatives.
Risk Assessment
Risk Level: medium — While a procedural step, the underlying offering could lead to dilution for existing shareholders, creating medium risk.
Analyst Insight
Investors should monitor subsequent filings (like a prospectus supplement) to understand the terms of the offering, including the type of securities, number of shares, and pricing, to assess potential dilution and capital infusion.
Key Players & Entities
- Atara Biotherapeutics, Inc. (company) — the filer of the EFFECT notice
- 0001604464 (company) — CIK of Atara Biotherapeutics, Inc.
- March 25, 2026 (date) — the effectiveness date of the registration statement
- 333-294377 (dollar_amount) — the File No. for the registration statement
FAQ
What is the purpose of an EFFECT filing for Atara Biotherapeutics, Inc.?
An EFFECT filing, specifically a 'Notice of Effectiveness,' indicates that the SEC has declared a previously filed registration statement (in this case, File No. 333-294377) effective. This means Atara Biotherapeutics, Inc. can now legally proceed with the offering of securities described in that registration statement.
When did the SEC declare Atara Biotherapeutics, Inc.'s registration statement effective?
The SEC declared Atara Biotherapeutics, Inc.'s registration statement effective on March 25, 2026, as stated in the 'Effectiveness Date' field of the filing.
What is the CIK number for Atara Biotherapeutics, Inc.?
The CIK (Central Index Key) number for Atara Biotherapeutics, Inc. is 0001604464, as listed in the filing details.
What is the File No. associated with this EFFECT filing?
The File No. associated with this EFFECT filing is 333-294377, which refers to the specific registration statement that has been declared effective.
Where is Atara Biotherapeutics, Inc.'s business address?
Atara Biotherapeutics, Inc.'s business address is 1280 RANCHO CONEJO BLVD, THOUSAND OAKS CA 91320, according to the mailing and business address information provided in the filing.
Filing Stats: 33 words · 1 min read · ~1 pages · Grade level 10.2 · Accepted 2026-03-26 00:15:07
Filing Documents
- primary_doc.html (EFFECT)
- primary_doc.xml (EFFECT) — 1KB
- 9999999995-26-000930.txt ( ) — 2KB
From the Filing
Notice of Effectiveness UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Notice of Effectiveness Effectiveness Date: March 25, 2026 4:30 P.M. Form: S-3 CIK: Company Name: Atara Biotherapeutics, Inc. File Number: 333-294377