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ATRA Institutional Ownership & 13F Holders | SmartMoneyDB

ATRAATARA BIOTHERAPEUTICS INC

COM NEW · CUSIP 046513206

Smart Money Ownership

Of the 7 tracked institutions holding ATRA, 3 have a 3-year clone track record — 3 of them beat the S&P. Average holder's clone alpha: +5.9pt. It's a gauge of who owns the name, not just how many.

ADAGE CAPITAL PARTNERS GP, L.L.C.

$3.3M

+1.7pt

Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →

ATRA (ATARA BIOTHERAPEUTICS INC) Institutional Ownership Summary

Among the 7 tracked institutional investors we monitor, ATRA (ATARA BIOTHERAPEUTICS INC) is held with a combined value of $9.12M across 1,289,606 shares. The largest holder is VANGUARD GROUP INC with a position worth $4.09M. 2 funds opened new positions in the most recent quarter. 3 funds increased their holdings. 1 fund reduced its position.

Total Institutional Value

$9.12M

Total Shares Held

1,289,606

Institutional Holders

This Quarter's Biggest Movers

Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.

Biggest Buyers

ADAGE CAPITAL PARTNERS GP, L.L.C.New position~$3.3M Point72 Asset Management, L.P.+962% shares~$832.3K VANGUARD GROUP INC+11% shares~$408.4K MILLENNIUM MANAGEMENT LLCNew position~$225.6K BlackRock, Inc.+18% shares~$56.5K

13F Institutional Holders

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VANGUARD GROUP INC

0.00% of book+11.1%

$4.09M

ADAGE CAPITAL PARTNERS GP, L.L.C.

0.01% of bookNew

$3.31M

Point72 Asset Management, L.P.

MILLENNIUM MANAGEMENT LLC

#	Fund	Value↓	Shares	Portfolio %	Change
1	VANGUARD GROUP INC	$4.09M	225,940	0.00%	+11.1%
2	ADAGE CAPITAL PARTNERS GP, L.L.C.	$3.31M	700,000	0.01%	New
3	Point72 Asset Management, L.P.	$918.87K	194,264	0.00%	+961.8%
4	BlackRock, Inc.	$373.77K	79,022	0.00%	+17.8%
5	MILLENNIUM MANAGEMENT LLC	$225.57K	47,689	0.00%	New
6	STATE STREET CORP	$125.12K	26,453	0.00%	-
7	FMR LLC	$76.81K	16,238	0.00%	-5.4%

Frequently Asked Questions

Which institutional investors own the most ATRA stock?

As of the latest SEC 13F filings, VANGUARD GROUP INC is the largest institutional holder of ATRA with a position worth $4.09M, representing 0.00% of their portfolio. In total, 7 institutional investors hold ATRA with a combined value of $9.12M.

Are hedge funds buying or selling ATRA?

In the most recent quarter, 2 funds opened a new position in ATRA. Additionally, 3 increased their holdings and 1 reduced their positions.

What percentage of ATRA is owned by institutional investors?

Institutional investors hold $9.12M worth of ATRA stock across 7 positions. The largest institutional holder is VANGUARD GROUP INC with $4.09M in holdings.

What is a 13F filing and why does it matter for ATRA?

A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For ATRA, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.

Track ATRA institutional moves

Get notified when hedge funds change their ATRA positions.