Jeff Yass’s Puma Biotechnology PBYI Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q2 | $126K | Sell |
15,476
-613
| -4% | -$4.49K | ﹤0.01% | 12328 |
|
|
2026
Q1 | $103K | Buy |
+16,089
| New | +$104K | ﹤0.01% | 12322 |
|
|
2025
Q3 | – | Sell |
-57,724
| Closed | -$245K | – | 13515 |
|
|
2025
Q2 | $198K | Sell |
57,724
-15,147
| -21% | -$48.3K | ﹤0.01% | 11222 |
|
|
2025
Q1 | $216K | Sell |
72,871
-2,232
| -3% | -$6.99K | ﹤0.01% | 10788 |
|
|
2024
Q4 | $229K | Buy |
+75,103
| New | +$219K | ﹤0.01% | 10419 |
|
|
2024
Q3 | – | Sell |
-256,263
| Closed | -$776K | – | 12759 |
|
|
2024
Q2 | $835K | Sell |
256,263
-126,416
| -33% | -$555K | ﹤0.01% | 7012 |
|
|
2024
Q1 | $2.03M | Buy |
382,679
+235,121
| +159% | +$1.27M | ﹤0.01% | 5309 |
|
|
2023
Q4 | $639K | Buy |
147,558
+49,536
| +51% | +$164K | ﹤0.01% | 8074 |
|
|
2023
Q3 | $258K | Sell |
98,022
-2,588
| -3% | -$8.81K | ﹤0.01% | 9682 |
|
|
2023
Q2 | $355K | Sell |
100,610
-361,586
| -78% | -$1.13M | ﹤0.01% | 9094 |
|
|
2023
Q1 | $1.43M | Buy |
462,196
+202,786
| +78% | +$765K | ﹤0.01% | 5919 |
|
|
2022
Q4 | $1.1M | Buy |
259,410
+115,485
| +80% | +$398K | ﹤0.01% | 5975 |
|
|
2022
Q3 | $341K | Buy |
143,925
+23,501
| +20% | +$68.6K | ﹤0.01% | 9464 |
|
|
2022
Q2 | $343K | Buy |
120,424
+59,703
| +98% | +$148K | ﹤0.01% | 9213 |
|
|
2022
Q1 | $175K | Sell |
60,721
-167,710
| -73% | -$434K | ﹤0.01% | 11400 |
|
|
2021
Q4 | $694K | Buy |
228,431
+177,974
| +353% | +$772K | ﹤0.01% | 8287 |
|
|
2021
Q3 | $354K | Sell |
50,457
-6,905
| -12% | -$51.7K | ﹤0.01% | 10221 |
|
|
2021
Q2 | $527K | Buy |
57,362
+13,059
| +29% | +$132K | ﹤0.01% | 9453 |
|
|
2021
Q1 | $431K | Sell |
44,303
-62,245
| -58% | -$695K | ﹤0.01% | 9820 |
|
|
2020
Q4 | $1.09M | Buy |
106,548
+25,141
| +31% | +$255K | ﹤0.01% | 6513 |
|
|
2020
Q3 | $821K | Sell |
81,407
-10,336
| -11% | -$105K | ﹤0.01% | 6603 |
|
|
2020
Q2 | $957K | Sell |
91,743
-97,020
| -51% | -$1M | ﹤0.01% | 6034 |
|
|
2020
Q1 | $1.59M | Sell |
188,763
-82,308
| -30% | -$800K | ﹤0.01% | 4386 |
|
|
2019
Q4 | $2.37M | Buy |
271,071
+40,482
| +18% | +$335K | ﹤0.01% | 4037 |
|
|
2019
Q3 | $2.48M | Buy |
230,589
+29,204
| +15% | +$315K | ﹤0.01% | 3799 |
|
|
2019
Q2 | $2.56M | Buy |
201,385
+86,635
| +75% | +$2M | ﹤0.01% | 3712 |
|
|
2019
Q1 | $4.45M | Buy |
114,750
+8,874
| +8% | +$271K | ﹤0.01% | 2594 |
|
|
2018
Q4 | $2.15M | Sell |
105,876
-114,441
| -52% | -$3.43M | ﹤0.01% | 3414 |
|
|
2018
Q3 | $10.1M | Sell |
220,317
-215,837
| -49% | -$10.4M | ﹤0.01% | 1919 |
|
|
2018
Q2 | $25.8M | Buy |
436,154
+189,962
| +77% | +$11M | 0.01% | 1101 |
|
|
2018
Q1 | $16.8M | Buy |
246,192
+14,371
| +6% | +$1.08M | 0.01% | 1347 |
|
|
2017
Q4 | $22.9M | Buy |
231,821
+136,599
| +143% | +$15.3M | 0.01% | 1155 |
|
|
2017
Q3 | $11.4M | Buy |
+95,222
| New | +$8.86M | ﹤0.01% | 1650 |
|
|
2016
Q1 | – | Sell |
-40,466
| Closed | -$1.83M | – | 9483 |
|
|
2015
Q4 | $3.17M | Sell |
40,466
-49,973
| -55% | -$3.92M | ﹤0.01% | 3186 |
|
|
2015
Q3 | $6.82M | Sell |
90,439
-17,696
| -16% | -$1.67M | ﹤0.01% | 2266 |
|
|
2015
Q2 | $12.6M | Buy |
108,135
+88,920
| +463% | +$16.1M | 0.01% | 1737 |
|
|
2015
Q1 | $4.54M | Sell |
19,215
-16,527
| -46% | -$3.53M | ﹤0.01% | 2875 |
|
|
2014
Q4 | $6.76M | Buy |
35,742
+22,131
| +163% | +$4.91M | ﹤0.01% | 2465 |
|
|
2014
Q3 | $3.25M | Sell |
13,611
-42,211
| -76% | -$8.67M | ﹤0.01% | 3756 |
|
|
2014
Q2 | $3.69M | Buy |
55,822
+23,909
| +75% | +$1.7M | ﹤0.01% | 3567 |
|
|
2014
Q1 | $3.32M | Buy |
31,913
+7,704
| +32% | +$906K | ﹤0.01% | 3480 |
|
|
2013
Q4 | $2.51M | Buy |
+24,209
| New | +$1.42M | ﹤0.01% | 3912 |
|
Other funds holding PBYI
ACA
Jeff Yass's PBYI Position: Q2 2026 in Review
Jeff Yass reduced its Puma Biotechnology (PBYI) stake by 3.8% in Q2 2026, selling an estimated $4.49K and leaving 15,476 shares worth $126K. The position accounts for ﹤0.01% of the portfolio, ranked #12328.
Jeff Yass first reported a position in PBYI in Q4 2013 and has held it in 42 quarters since. The position peaked at $25.8M in Q2 2018. 160 funds tracked by Wall St. Rank hold PBYI as of Q2 2026.
- Jeff Yass held 15,476 shares of Puma Biotechnology worth $126K as of Q2 2026.
- Jeff Yass sold 613 Puma Biotechnology shares in Q2 2026, an estimated $4.49K.
- Puma Biotechnology made up ﹤0.01% of Jeff Yass's portfolio in Q2 2026, its #12328 holding.
- Jeff Yass first reported a position in Puma Biotechnology in Q4 2013 and has held it in 42 quarters since.
- Jeff Yass's Puma Biotechnology position peaked at $25.8M in Q2 2018.
- 160 funds tracked by Wall St. Rank held Puma Biotechnology as of Q2 2026.
Based on Susquehanna International Group's 13F filing for Q2 2026, filed 14 Aug 2026.