Activist 13D/13G Filings - Atara Biotherapeutics Inc. (ATRA)

Real time Form 13D and 13G transaction reports:

  • Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
  • Due to inconsistent filing format, it is highly recommended that you read the orignal filing form.
  • Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
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Time period
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Reported
DateTime		TypeCompany
Symbol		Filed By
Symbol		Shares Owned
% Owned		Shares Vs. Prev ReportFiling
2020-02-14
4:03 pm
Purchase		13GAtara Biotherapeutics Inc.
ATRA		MAVERICK CAPITAL LTD4,958,431
9.2%		4,958,431increase
(New Position)		View
2020-02-14
4:00 pm
Unchanged		13GAtara Biotherapeutics Inc.
ATRA		BRIDGER MANAGEMENT LLC2,932,865
5.4%		0
(Unchanged)		View
2020-02-13
4:34 pm
Purchase		13GAtara Biotherapeutics Inc.
ATRA		BAUPOST GROUP LLC8,308,900
15.34%		2,054,268increase
(+32.84%)		View
2020-02-12
11:08 am
Purchase		13GAtara Biotherapeutics Inc.
ATRA		VANGUARD GROUP INC3,681,701
6.79%		865,260increase
(+30.72%)		View
2020-02-05
11:26 am
Purchase		13GAtara Biotherapeutics Inc.
ATRA		BlackRock Inc.
BLK		4,580,414
8.5%		1,067,179increase
(+30.38%)		View
2019-11-01
4:12 pm
Purchase		13GAtara Biotherapeutics Inc.
ATRA		BRIDGER MANAGEMENT LLC2,932,865
5.5%		725,948increase
(+32.89%)		View
2019-08-12
10:20 am
Sale		13GAtara Biotherapeutics Inc.
ATRA		FMR LLC2,457,742
4.621%		-2,816,427decrease
(-53.40%)		View
2019-07-29
2:27 pm
Purchase		13GAtara Biotherapeutics Inc.
ATRA		Camber Capital Management LP2,950,000
5.55%		1,050,000increase
(+55.26%)		View
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