Atom Investors LP

SEC CIK: 0001738902
Latest filing: Aug 14, 2026

SEC filings (opens in a new tab)

ATRA holding history

Atara Biotherapeutics, Inc. in every 13F filed by Atom Investors LP, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

ATRA overview All 13F holders of ATRA Full Q2 2026 holdings

Shares (Q2 2024): 0; Sold out in Q2 2024
Value: $0
% of portfolio: 0.0%
Quarters held: 2; Since Q1 2021

Holdings of ATRA by Atom Investors LP, by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q2 2024	0	$0	0.0%	−1,256−100.0%	Sold outConverted for a 1-for-25 split	Holders
Q1 2024	31,408	$21.8K	<0.1%	+31,408	New	Holders
Q2 2021	0	$0	0.0%	−35,164−100.0%	Sold out	Holders
Q1 2021	35,164	$505.0K	0.1%	–	–	Holders

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.