Osaic Holdings
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Osaic Holdings’s Atara Biotherapeutics ATRA Stock Holding History

Osaic Holdings’s Portfolio ATRA Stock Details ATRA Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$47 Hold
10
– – ﹤0.01% 7682
2025
Q4 		$180 Hold
10
– – ﹤0.01% 7594
2025
Q3 		$138 Hold
10
– – ﹤0.01% 7729
2025
Q2 		$77 Hold
10
– – ﹤0.01% 7584
2025
Q1 		$59 Sell
10
-600
-98% -$5.24K ﹤0.01% 7273
2024
Q4 		$8.12K Sell
610
-34
-5% -$358 ﹤0.01% 5915
2024
Q3 		$5.24K Buy
+644
New +$5.51K ﹤0.01% 6167
2024
Q2 		– Sell
-669
Closed -$11.6K – 7408
2024
Q1 		$11.6K Buy
669
+580
+652% +$10.3K ﹤0.01% 5673
2023
Q4 		$1.15K Sell
89
-88
-50% -$2.05K ﹤0.01% 6709
2023
Q3 		$6.55K Buy
177
+4
+2% +$178 ﹤0.01% 6141
2023
Q2 		$6.95K Sell
173
-11
-6% -$622 ﹤0.01% 6155
2023
Q1 		$13.3K Sell
184
-2
-1% -$194 ﹤0.01% 5810
2022
Q4 		$15.8K Buy
186
+152
+447% +$15.8K ﹤0.01% 5729
2022
Q3 		$3K Sell
34
-1
-3% -$112 ﹤0.01% 6578
2022
Q2 		$7K Buy
35
+5
+17% +$816 ﹤0.01% 6287
2022
Q1 		$7K Sell
30
-5
-14% -$1.59K ﹤0.01% 6306
2021
Q4 		$14K Buy
35
+9
+35% +$3.79K ﹤0.01% 6035
2021
Q3 		$11K Sell
26
-26
-50% -$9.31K ﹤0.01% 6129
2021
Q2 		$21K Sell
52
-3
-5% -$1.07K ﹤0.01% 5620
2021
Q1 		$19K Sell
55
-1,173
-96% -$518K ﹤0.01% 5500
2020
Q4 		$602K Buy
1,228
+184
+18% +$84.9K ﹤0.01% 2473
2020
Q3 		$338K Buy
1,044
+1,030
+7,357% +$351K ﹤0.01% 2781
2020
Q2 		$4K Sell
14
-23
-62% -$5.81K ﹤0.01% 5539
2020
Q1 		$8K Buy
+37
New +$11.7K ﹤0.01% 5113

Other funds holding ATRA

Adage Capital Partners
Adage Capital Partners Boston, Massachusetts $64.8B AUM 42.7% 1-Year Est. Return
RG
Redmile Group San Francisco, California $1.51B AUM 164.17% 1-Year Est. Return
Mackenzie Financial
Mackenzie Financial Toronto Ontario, Ontario, Canada $100B AUM 36.93% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Point72 Asset Management
Point72 Asset Management Stamford, Connecticut $78.1B AUM 55.25% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return
EC
EcoR1 Capital San Francisco, California $2.36B AUM 204.53% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return

Osaic Holdings's ATRA Position: Q1 2026 in Review

Osaic Holdings held its Atara Biotherapeutics (ATRA) position steady in Q1 2026 at 10 shares worth $47. The position accounts for ﹤0.01% of the portfolio, ranked #7682.

Osaic Holdings first reported a position in ATRA in Q1 2020 and has held it in 24 quarters since. The position peaked at $602K in Q4 2020. 33 funds tracked by Wall St. Rank hold ATRA as of Q1 2026.

  • Osaic Holdings held 10 shares of Atara Biotherapeutics worth $47 as of Q1 2026.
  • Osaic Holdings left its Atara Biotherapeutics share count unchanged in Q1 2026.
  • Atara Biotherapeutics made up ﹤0.01% of Osaic Holdings's portfolio in Q1 2026, its #7682 holding.
  • Osaic Holdings first reported a position in Atara Biotherapeutics in Q1 2020 and has held it in 24 quarters since.
  • Osaic Holdings's Atara Biotherapeutics position peaked at $602K in Q4 2020.
  • 33 funds tracked by Wall St. Rank held Atara Biotherapeutics as of Q1 2026.

Based on Osaic Holdings's 13F filing for Q1 2026, filed 15 May 2026.