Assenagon Asset Management
PBYI icon

Assenagon Asset Management’s Puma Biotechnology PBYI Stock Holding History

Assenagon Asset Management’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
2025
Q4 		– Sell
-72,979
Closed -$388K – 1230
2025
Q3 		$388K Buy
+72,979
New +$309K ﹤0.01% 1092
2024
Q3 		– Sell
-140,205
Closed -$457K – 1445
2024
Q2 		$457K Buy
140,205
+70,060
+100% +$308K ﹤0.01% 1256
2024
Q1 		$372K Sell
70,145
-14,894
-18% -$80.2K ﹤0.01% 1251
2023
Q4 		$368K Buy
85,039
+15,897
+23% +$52.7K ﹤0.01% 1293
2023
Q3 		$182K Sell
69,142
-154,179
-69% -$525K ﹤0.01% 1342
2023
Q2 		$788K Buy
223,321
+30,127
+16% +$94K ﹤0.01% 1028
2023
Q1 		$597K Buy
193,194
+27,088
+16% +$102K ﹤0.01% 1188
2022
Q4 		$703K Hold
166,106
– – ﹤0.01% 1114
2022
Q3 		$394K Sell
166,106
-21,384
-11% -$62.4K ﹤0.01% 1145
2022
Q2 		$534K Buy
187,490
+162,531
+651% +$404K ﹤0.01% 1212
2022
Q1 		$72K Sell
24,959
-354,180
-93% -$916K ﹤0.01% 1388
2021
Q4 		$1.15M Buy
+379,139
New +$1.65M ﹤0.01% 986
2019
Q4 		– Sell
-97,894
Closed -$1.05M – 893
2019
Q3 		$1.05M Buy
+97,894
New +$1.06M 0.01% 533

Other funds holding PBYI

ACA
Acorn Capital Advisors New York $366M AUM 474.6% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
OSAM
O'Shaughnessy Asset Management Stamford, Connecticut $21.7B AUM 41.93% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Assenagon Asset Management's PBYI Position: Q4 2025 in Review

Assenagon Asset Management sold out of Puma Biotechnology (PBYI) in Q4 2025, closing a stake of 72,979 shares — an estimated $388K sold.

Assenagon Asset Management first reported a position in PBYI in Q3 2019 and held it in 13 quarters. The position peaked at $1.15M in Q4 2021. 151 funds tracked by Wall St. Rank hold PBYI as of Q4 2025.

  • Assenagon Asset Management reported no remaining Puma Biotechnology position as of Q4 2025 after selling out during the quarter.
  • Assenagon Asset Management sold 72,979 Puma Biotechnology shares in Q4 2025, an estimated $388K.
  • Assenagon Asset Management first reported a position in Puma Biotechnology in Q3 2019 and held it in 13 quarters.
  • Assenagon Asset Management's Puma Biotechnology position peaked at $1.15M in Q4 2021.
  • 151 funds tracked by Wall St. Rank held Puma Biotechnology as of Q4 2025.

Based on Assenagon Asset Management's 13F filing for Q4 2025, filed 9 Jan 2026.