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Israel Englander’s Puma Biotechnology PBYI Stock Holding History

Israel Englander’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
2024
Q2 		– Sell
-125,200
Closed -$664K – 6364
2024
Q1 		$664K Buy
+125,200
New +$674K ﹤0.01% 4619
2023
Q4 		– Sell
-200,000
Closed -$526K – 6411
2023
Q3 		$526K Sell
200,000
-63,800
-24% -$217K ﹤0.01% 4624
2023
Q2 		$931K Buy
263,800
+15,400
+6% +$48K ﹤0.01% 4101
2023
Q1 		$768K Buy
+248,400
New +$937K ﹤0.01% 4318
2022
Q4 		– Sell
-218,600
Closed -$518K – 6918
2022
Q3 		$518K Buy
+218,600
New +$638K ﹤0.01% 4947
2022
Q1 		– Sell
-200,000
Closed -$608K – 7330
2021
Q4 		$608K Buy
+200,000
New +$868K ﹤0.01% 4877
2021
Q1 		– Sell
-100,000
Closed -$1.03M – 6371
2020
Q4 		$1.03M Buy
+100,000
New +$1.01M ﹤0.01% 3722
2020
Q1 		– Sell
-100,000
Closed -$875K – 4318
2019
Q4 		$875K Buy
+100,000
New +$828K ﹤0.01% 3066
2019
Q2 		– Sell
-150,000
Closed -$5.82M – 4362
2019
Q1 		$5.82M Buy
+150,000
New +$4.58M 0.01% 1650
2018
Q1 		– Sell
-50,000
Closed -$4.94M – 3974
2017
Q4 		$4.94M Buy
50,000
+20,000
+67% +$2.24M 0.01% 1743
2017
Q3 		$3.59M Buy
+30,000
New +$2.79M 0.01% 1842
2017
Q2 		– Sell
-75,000
Closed -$2.79M – 3753
2017
Q1 		$2.79M Sell
75,000
-15,000
-17% -$547K 0.01% 1809
2016
Q4 		$2.76M Buy
+90,000
New +$3.89M 0.01% 1687
2016
Q2 		– Sell
-30,000
Closed -$881K – 3462
2016
Q1 		$881K Buy
+30,000
New +$1.36M ﹤0.01% 2253
2015
Q1 		– Sell
-8,800
Closed -$1.67M – 3958
2014
Q4 		$1.67M Buy
+8,800
New +$1.95M ﹤0.01% 2119
2014
Q3 		– Sell
-183,700
Closed -$12.1M – 3929
2014
Q2 		$12.1M Buy
+183,700
New +$13.1M 0.03% 728

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

Israel Englander's PBYI Position: Q2 2026 in Review

Israel Englander reduced its Puma Biotechnology (PBYI) stake by 59% in Q2 2026, selling an estimated $6.41M and leaving 602,240 shares worth $4.88M. The position accounts for ﹤0.01% of the portfolio, ranked #3017.

Israel Englander first reported a position in PBYI in Q2 2013 and has held it in 51 quarters since. The position peaked at $127M in Q2 2017. 160 funds tracked by Wall St. Rank hold PBYI as of Q2 2026.

  • Israel Englander held 602,240 shares of Puma Biotechnology worth $4.88M as of Q2 2026.
  • Israel Englander sold 875,279 Puma Biotechnology shares in Q2 2026, an estimated $6.41M.
  • Puma Biotechnology made up ﹤0.01% of Israel Englander's portfolio in Q2 2026, its #3017 holding.
  • Israel Englander first reported a position in Puma Biotechnology in Q2 2013 and has held it in 51 quarters since.
  • Israel Englander's Puma Biotechnology position peaked at $127M in Q2 2017.
  • 160 funds tracked by Wall St. Rank held Puma Biotechnology as of Q2 2026.

Based on Millennium Management's 13F filing for Q2 2026, filed 14 Aug 2026.