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Round Rock Advisors’s Puma Biotechnology PBYI Stock Holding History

Round Rock Advisors’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 		$1.05M Hold
128,912
– – 0.13% 114
2026
Q1 		$824K Buy
128,912
+23,870
+23% +$154K 0.13% 127
2025
Q4 		$625K Buy
105,042
+39,646
+61% +$211K 0.09% 168
2025
Q3 		$330K Buy
+65,396
New +$277K 0.05% 234

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

Round Rock Advisors's PBYI Position: Q2 2026 in Review

Round Rock Advisors held its Puma Biotechnology (PBYI) position steady in Q2 2026 at 128,912 shares worth $1.05M. The position accounts for 0.13% of the portfolio, ranked #114.

Round Rock Advisors first reported a position in PBYI in Q3 2025 and has held it in 4 quarters since. 161 funds tracked by Wall St. Rank hold PBYI as of Q2 2026.

  • Round Rock Advisors held 128,912 shares of Puma Biotechnology worth $1.05M as of Q2 2026.
  • Round Rock Advisors left its Puma Biotechnology share count unchanged in Q2 2026.
  • Puma Biotechnology made up 0.13% of Round Rock Advisors's portfolio in Q2 2026, its #114 holding.
  • Round Rock Advisors first reported a position in Puma Biotechnology in Q3 2025 and has held it in 4 quarters since.
  • 161 funds tracked by Wall St. Rank held Puma Biotechnology as of Q2 2026.

Based on Round Rock Advisors's 13F filing for Q2 2026, filed 12 Aug 2026.