O'Shaughnessy Asset Management’s Puma Biotechnology PBYI Stock Holding History

O'Shaughnessy 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
2026 Q2	$9.11M	Sell	1,123,783 -14,386	-1%	-$105K	0.04%	408
2026 Q1	$7.27M	Buy	1,138,169 +17,840	+2%	+$115K	0.04%	439
2025 Q4	$6.67M	Buy	1,120,329 +292,108	+35%	+$1.55M	0.04%	431
2025 Q3	$4.4M	Buy	828,221 +390,561	+89%	+$1.66M	0.03%	558
2025 Q2	$1.5M	Buy	437,660 +329,715	+305%	+$1.05M	0.01%	887
2025 Q1	$320K	Sell	107,945 -4,626	-4%	-$14.5K	﹤0.01%	1547
2024 Q4	$343K	Buy	112,571 +56,202	+100%	+$164K	﹤0.01%	1459
2024 Q3	$161K	Sell	56,369 -27,842	-33%	-$84.3K	﹤0.01%	1724
2024 Q2	$275K	Buy	84,211 +7,130	+9%	+$31.3K	﹤0.01%	1406
2024 Q1	$409K	Buy	77,081 +43,229	+128%	+$233K	﹤0.01%	1191
2023 Q4	$147K	Buy	+33,852	New	+$112K	﹤0.01%	1447
2021 Q4	–	Sell	-1,560	Closed	-$11K	–	2115
2021 Q3	$11K	Sell	1,560 -3,500	-69%	-$26.2K	﹤0.01%	2141
2021 Q2	$46K	Buy	+5,060	New	+$51.3K	﹤0.01%	1605

Other funds holding PBYI

ACA

Acorn Capital Advisors New York $366M AUM 474.6% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return

Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return

Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

LSV Asset Management Chicago, Illinois $55.1B AUM 45.38% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

O'Shaughnessy Asset Management's PBYI Position: Q2 2026 in Review

O'Shaughnessy Asset Management reduced its Puma Biotechnology (PBYI) stake by 1.3% in Q2 2026, selling an estimated $105K and leaving 1,123,783 shares worth $9.11M. The position accounts for 0.04% of the portfolio, ranked #408.

O'Shaughnessy Asset Management first reported a position in PBYI in Q2 2021 and has held it in 13 quarters since. 161 funds tracked by Wall St. Rank hold PBYI as of Q2 2026.

O'Shaughnessy Asset Management held 1,123,783 shares of Puma Biotechnology worth $9.11M as of Q2 2026.
O'Shaughnessy Asset Management sold 14,386 Puma Biotechnology shares in Q2 2026, an estimated $105K.
Puma Biotechnology made up 0.04% of O'Shaughnessy Asset Management's portfolio in Q2 2026, its #408 holding.
O'Shaughnessy Asset Management first reported a position in Puma Biotechnology in Q2 2021 and has held it in 13 quarters since.
161 funds tracked by Wall St. Rank held Puma Biotechnology as of Q2 2026.

Based on O'Shaughnessy Asset Management's 13F filing for Q2 2026, filed 13 Aug 2026.