13FBOX
ATARA BIOTHERAPEUTICS INC · 13F Institutional Holdings
Options Calculator Rankings
A

ATARA BIOTHERAPEUTICS INC

ATRA
Institutions
37
Combined AUM (Q2 2026)
$51.3M
Combined Shares (Q2 2026)
4.5M
Overall Trend
Increase
All institutions combined
📥 Inflow (Q1 2026→Q2 2026)
+2.2M
15 · 4 New Buys · ≈
📤 Outflow (Q1 2026→Q2 2026)
-302,869
10 · 1 Exit · ≈
⚖️ Net
+1.9M
Net Buy
💰 Net Value
≈ —
est. price
Latest AUM (Q2 2026)
$51.3M
Institutions
37
New Buys
4
Adds
11
Reduces
9
Exits
1
Unchanged
13
Ownership TrendPortfolio %Prev Q %RankQ2 2026 ValueQ2 2026 SharesPrev Q ValuePrev Q SharesShares ChangeAction
EcoR1 Capital, LLC
0.87%0.02%#1$17.8M1.6M$471,07599,593+1.5M+1,458.34%Add
ADAGE CAPITAL PARTNERS GP, L.L.C.
0.01%0.01%#4$9.8M850,000$3.3M700,000+150,000+21.43%Add
Point72 Asset Management, L.P.
0.01%<0.01%#5$7.9M687,718$918,869194,264+493,454+254.01%Add
Redmile Group, LLC
0.34%0.14%#2$5.1M441,701$2.1M441,70100.00%Unchanged
VANGUARD CAPITAL MANAGEMENT LLC
<0.01%<0.01%#15$2.8M247,047$1.0M217,862+29,185+13.40%Add
MACKENZIE FINANCIAL CORP
<0.01%<0.01%#7$2.7M233,249$1.5M313,620-80,371-25.63%Reduce
BlackRock, Inc.
<0.01%<0.01%#22$969,54484,455$373,77379,022+5,433+6.88%Add
GEODE CAPITAL MANAGEMENT, LLC
<0.01%<0.01%#17$862,92475,128$313,04566,146+8,982+13.58%Add
STALEY CAPITAL ADVISERS INC
0.02%0.01%#3$574,00050,000$236,50050,00000.00%Unchanged
VANGUARD FIDUCIARY TRUST CO
<0.01%<0.01%#14$494,05343,036$159,02733,621+9,415+28.00%Add
ACADIAN ASSET MANAGEMENT LLC
<0.01%<0.01%#9$445,94138,845$617,000130,910-92,065-70.33%Reduce
JANE STREET GROUP, LLC
<0.01%<0.01%#19$348,36030,345$160,20633,870-3,525-10.41%Reduce
STATE STREET CORP
<0.01%<0.01%#24$303,68026,453$125,12326,45300.00%Unchanged
NORTHERN TRUST CORP
<0.01%<0.01%#21$190,46516,591$58,36812,340+4,251+34.45%Add
FMR LLC
<0.01%<0.01%#26$186,41216,238$76,80616,23800.00%Unchanged
XTX Topco Ltd
<0.01%#8$175,67815,303$00+15,303New Buy
BRIDGEWAY CAPITAL MANAGEMENT, LLC
<0.01%<0.01%#6$160,72014,000$154,62832,691-18,691-57.17%Reduce
MILLENNIUM MANAGEMENT LLC
<0.01%<0.01%#16$145,56612,680$225,56947,689-35,009-73.41%Reduce
CITADEL ADVISORS LLC
<0.01%#23$116,62510,159$00+10,159New Buy
MORGAN STANLEY
<0.01%<0.01%#29$105,3689,178$514,99135,938-26,760-74.46%Reduce
ROYAL BANK OF CANADA
<0.01%<0.01%#25$55,0004,743$20,0004,319+424+9.82%Add
UBS Group AG
<0.01%<0.01%#28$45,6793,979$236,83150,070-46,091-92.05%Reduce
Vanguard Global Advisers, LLC
<0.01%<0.01%#27$16,7151,456$6,8871,45600.00%Unchanged
SBI Securities Co., Ltd.
<0.01%<0.01%#11$16,1181,404$7,4451,574-170-10.80%Reduce
JONES FINANCIAL COMPANIES LLLP
<0.01%<0.01%#30$8,440803$3,227703+100+14.22%Add
Caitong International Asset Management Co., Ltd
<0.01%#10$3,570311$00+311New Buy
BARCLAYS PLC
<0.01%#31$3,490304$00+304New Buy
WELLS FARGO & COMPANY/MN
<0.01%<0.01%#32$2,881251$1,18725100.00%Unchanged
JPMORGAN CHASE & CO
<0.01%<0.01%#37$2,413216$93321600.00%Unchanged
Raiffeisen Bank International AG
<0.01%<0.01%#20$2,296200$94620000.00%Unchanged
Banque Transatlantique SA
<0.01%<0.01%#18$1,936176$90617600.00%Unchanged
CITIGROUP INC
<0.01%<0.01%#33$1,11497$51+96+9,600.00%Add
BNP PARIBAS FINANCIAL MARKETS
<0.01%<0.01%#34$52846$27458-12-20.69%Reduce
PlanVest Financial, Inc
<0.01%<0.01%#13$32128$1322800.00%Unchanged
KERR FINANCIAL PLANNING Corp
<0.01%<0.01%#12$27624$1162400.00%Unchanged
OSAIC HOLDINGS, INC.
<0.01%<0.01%#36$11410$471000.00%Unchanged
Rockefeller Capital Management L.P.
<0.01%<0.01%#35$928$38800.00%Unchanged

🧭 Institutional Sector Flow Heatmap

Net Outflow Net Inflow