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R Squared’s Puma Biotechnology PBYI Stock Holding History

R Squared’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 		$97.2K Buy
+11,991
New +$87.8K 0.05% 406
2025
Q1 		– Sell
-5,020
Closed -$15.3K – 1149
2024
Q4 		$15.3K Buy
+5,020
New +$14.6K 0.01% 1003

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

R Squared's PBYI Position: Q2 2026 in Review

R Squared opened a new position in Puma Biotechnology (PBYI) in Q2 2026: 11,991 shares worth $97.2K. The stake represents 0.05% of the portfolio and ranks #406 among its holdings. This is a return to the name: R Squared previously reported a position in PBYI as recently as Q4 2024.

R Squared first reported a position in PBYI in Q4 2024 and has held it in 2 quarters since. 161 funds tracked by Wall St. Rank hold PBYI as of Q2 2026.

  • R Squared held 11,991 shares of Puma Biotechnology worth $97.2K as of Q2 2026.
  • Puma Biotechnology was a new R Squared position in Q2 2026.
  • Puma Biotechnology made up 0.05% of R Squared's portfolio in Q2 2026, its #406 holding.
  • R Squared first reported a position in Puma Biotechnology in Q4 2024 and has held it in 2 quarters since.
  • 161 funds tracked by Wall St. Rank held Puma Biotechnology as of Q2 2026.

Based on R Squared's 13F filing for Q2 2026, filed 5 Aug 2026.