Group One Trading
PBYI icon

Group One Trading’s Puma Biotechnology PBYI Stock Holding History

Group One Trading’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 		$7.02K Sell
866
-478
-36% -$3.5K ﹤0.01% 6586
2026
Q1 		$8.59K Sell
1,344
-7,889
-85% -$50.9K ﹤0.01% 6457
2025
Q4 		$54.9K Buy
+9,233
New +$49K ﹤0.01% 5525
2024
Q4 		– Sell
-4,695
Closed -$13.7K – 7787
2024
Q3 		$12K Buy
+4,695
New +$14.2K ﹤0.01% 5519
2024
Q2 		– Sell
-1,495
Closed -$6.56K – 7293
2024
Q1 		$7.92K Buy
+1,495
New +$8.05K ﹤0.01% 5989
2023
Q2 		– Sell
-3,733
Closed -$11.6K – 8074
2023
Q1 		$11.5K Buy
+3,733
New +$14.1K ﹤0.01% 5855
2022
Q1 		– Sell
-4,789
Closed -$12.4K – 8507
2021
Q4 		$15K Buy
4,789
+4,314
+908% +$18.7K ﹤0.01% 7142
2021
Q3 		$3K Sell
475
-156
-25% -$1.17K ﹤0.01% 7878
2021
Q2 		$6K Sell
631
-469
-43% -$4.75K ﹤0.01% 7707
2021
Q1 		$11K Sell
1,100
-28,796
-96% -$322K ﹤0.01% 7017
2020
Q4 		$307K Sell
29,896
-4,876
-14% -$49.4K ﹤0.01% 3716
2020
Q3 		$351K Buy
34,772
+11,914
+52% +$121K ﹤0.01% 3164
2020
Q2 		$238K Sell
22,858
-41,967
-65% -$434K ﹤0.01% 3246
2020
Q1 		$547K Sell
64,825
-13,607
-17% -$132K ﹤0.01% 1996
2019
Q4 		$686K Buy
+78,432
New +$649K ﹤0.01% 2180
2019
Q1 		– Sell
-2,754
Closed -$84.1K – 5226
2018
Q4 		$56K Sell
2,754
-23,920
-90% -$718K ﹤0.01% 3506
2018
Q3 		$1.22M Sell
26,674
-3,319
-11% -$160K 0.01% 1535
2018
Q2 		$1.77M Sell
29,993
-13,712
-31% -$795K 0.02% 1232
2018
Q1 		$2.97M Buy
43,705
+6,693
+18% +$501K 0.03% 742
2017
Q4 		$3.66M Buy
+37,012
New +$4.14M 0.03% 814
2017
Q3 		– Sell
-50,263
Closed -$4.67M – 5067
2017
Q2 		$4.39M Buy
50,263
+11,492
+30% +$643K 0.05% 518
2017
Q1 		$1.44M Buy
38,771
+10,042
+35% +$366K 0.02% 1075
2016
Q4 		$882K Buy
+28,729
New +$1.24M 0.01% 1391
2016
Q3 		– Sell
-2,646
Closed -$134K – 4801
2016
Q2 		$79K Sell
2,646
-5,261
-67% -$164K ﹤0.01% 3023
2016
Q1 		$232K Buy
7,907
+4,309
+120% +$195K ﹤0.01% 2227
2015
Q4 		$282K Sell
3,598
-25,441
-88% -$2M ﹤0.01% 2242
2015
Q3 		$2.19M Buy
29,039
+10,427
+56% +$986K 0.03% 731
2015
Q2 		$2.17M Buy
+18,612
New +$3.37M 0.03% 699
2014
Q4 		– Sell
-6,045
Closed -$1.34M – 5176
2014
Q3 		$1.44M Sell
6,045
-9,556
-61% -$1.96M 0.02% 883
2014
Q2 		$1.03M Buy
15,601
+8,056
+107% +$573K 0.02% 1121
2014
Q1 		$786K Buy
+7,545
New +$887K 0.01% 1271
2013
Q4 		– Sell
-250
Closed -$14.7K – 5460
2013
Q3 		$13K Buy
+250
New +$13.5K ﹤0.01% 4399

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

Group One Trading's PBYI Position: Q2 2026 in Review

Group One Trading reduced its Puma Biotechnology (PBYI) stake by 36% in Q2 2026, selling an estimated $3.5K and leaving 866 shares worth $7.02K. The position accounts for ﹤0.01% of the portfolio, ranked #6586.

Group One Trading first reported a position in PBYI in Q3 2013 and has held it in 32 quarters since. The position peaked at $4.39M in Q2 2017. 160 funds tracked by Wall St. Rank hold PBYI as of Q2 2026.

  • Group One Trading held 866 shares of Puma Biotechnology worth $7.02K as of Q2 2026.
  • Group One Trading sold 478 Puma Biotechnology shares in Q2 2026, an estimated $3.5K.
  • Puma Biotechnology made up ﹤0.01% of Group One Trading's portfolio in Q2 2026, its #6586 holding.
  • Group One Trading first reported a position in Puma Biotechnology in Q3 2013 and has held it in 32 quarters since.
  • Group One Trading's Puma Biotechnology position peaked at $4.39M in Q2 2017.
  • 160 funds tracked by Wall St. Rank held Puma Biotechnology as of Q2 2026.

Based on Group One Trading's 13F filing for Q2 2026, filed 14 Aug 2026.