ATRAGBX Institutional Ownership
ATARA BIOTHERAPEUTICS INC
Schedule 13G/13D reports beneficial ownership at an observation date. “Accumulation” or “reduction” is inferred
from changes in reported shares when available; it is not a list of individual trades or exact execution prices.
Form 13F rows are quarter-end holding context only and do not establish an exact entry date.
Free access includes current parsed ownership filings, reported share changes, and ownership-percentage changes.
Significance scoring, disclosure-speed analysis, confirmation/divergence signals, and signal alerts require Investor or Pro.
Compare plans.
Cross-institution intelligence
Institutional Research
Each institution is compared with its own prior filing, then the latest institution-level directions are compared for breadth.
Latest filing
Jan 26, 2024
Investor and Pro research
See whether tracked institutions agree.
Compare each institution with its own prior filing, measure accumulation breadth, and view ownership and activity charts across holders.
1 tracked institution
Latest filing Jan 26, 2024
Beneficial ownership filing history
Showing 1 of 1 parsed filing(s)| Holder | Observed / filed | Reported change | Shares | Ownership | Observation | Filing | Latest |
|---|---|---|---|---|---|---|---|
| BlackRock Legacy CIK0001364742 | Dec 31, 2023 observed Jan 26, 2024 filed · 26d Schedule 13G amendment | Earliest Schedule 13G amendment found | 7.1M | 7.00% |