Arrowstreet Capital
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Arrowstreet Capital’s Puma Biotechnology PBYI Stock Holding History

Arrowstreet Capital’s Portfolio PBYI Stock Details PBYI Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$4.32M Sell
532,450
-5,705
-1% -$41.8K ﹤0.01% 1332
2026
Q1 		$3.44M Sell
538,155
-9,698
-2% -$62.5K ﹤0.01% 1266
2025
Q4 		$3.26M Buy
547,853
+83,119
+18% +$441K ﹤0.01% 1256
2025
Q3 		$2.47M Buy
464,734
+13,101
+3% +$55.6K ﹤0.01% 1396
2025
Q2 		$1.55M Buy
451,633
+93,012
+26% +$297K ﹤0.01% 1512
2025
Q1 		$1.06M Buy
+358,621
New +$1.12M ﹤0.01% 1460
2024
Q3 		– Sell
-92,174
Closed -$300K – 1838
2024
Q2 		$300K Sell
92,174
-138,251
-60% -$607K ﹤0.01% 1398
2024
Q1 		$1.22M Buy
+230,425
New +$1.24M ﹤0.01% 1279
2021
Q1 		– Sell
-80,823
Closed -$829K – 2457
2020
Q4 		$829K Sell
80,823
-27,640
-25% -$280K ﹤0.01% 1881
2020
Q3 		$1.09M Sell
108,463
-395,704
-78% -$4.03M ﹤0.01% 1791
2020
Q2 		$5.26M Buy
504,167
+445,767
+763% +$4.61M 0.01% 1036
2020
Q1 		$493K Sell
58,400
-98,199
-63% -$954K ﹤0.01% 1533
2019
Q4 		$1.37M Buy
+156,599
New +$1.3M ﹤0.01% 1253

Other funds holding PBYI

ACA
Acorn Capital Advisors New York $366M AUM 474.6% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
LSV Asset Management
LSV Asset Management Chicago, Illinois $55.1B AUM 45.38% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Arrowstreet Capital's PBYI Position: Q2 2026 in Review

Arrowstreet Capital reduced its Puma Biotechnology (PBYI) stake by 1.1% in Q2 2026, selling an estimated $41.8K and leaving 532,450 shares worth $4.32M. The position accounts for ﹤0.01% of the portfolio, ranked #1332.

Arrowstreet Capital first reported a position in PBYI in Q4 2019 and has held it in 13 quarters since. The position peaked at $5.26M in Q2 2020. 161 funds tracked by Wall St. Rank hold PBYI as of Q2 2026.

  • Arrowstreet Capital held 532,450 shares of Puma Biotechnology worth $4.32M as of Q2 2026.
  • Arrowstreet Capital sold 5,705 Puma Biotechnology shares in Q2 2026, an estimated $41.8K.
  • Puma Biotechnology made up ﹤0.01% of Arrowstreet Capital's portfolio in Q2 2026, its #1332 holding.
  • Arrowstreet Capital first reported a position in Puma Biotechnology in Q4 2019 and has held it in 13 quarters since.
  • Arrowstreet Capital's Puma Biotechnology position peaked at $5.26M in Q2 2020.
  • 161 funds tracked by Wall St. Rank held Puma Biotechnology as of Q2 2026.

Based on Arrowstreet Capital's 13F filing for Q2 2026, filed 13 Aug 2026.