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Sio Capital Management’s GSK GSK Stock Holding History

Sio Capital Management’s Portfolio GSK Stock Details GSK Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2015
Q3 		– Sell
-40,000
Closed -$2.08M – 40
2015
Q2 		$2.08M Buy
+40,000
New +$2.25M 1.03% 30

Other funds holding GSK

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Dodge & Cox
Dodge & Cox San Francisco, California $191B AUM 17.5% 1-Year Est. Return
Fisher Asset Management
Fisher Asset Management Camas, Washington $336B AUM 34.66% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
JEST
JTC Employer Solutions Trustee St Helier, Jersey $1.25B AUM 41.83% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Royal Bank of Canada
Royal Bank of Canada Toronto, Ontario, Canada $672B AUM 33.48% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return

Sio Capital Management's GSK Position: Q2 2026 in Review

Sio Capital Management increased its GSK (GSK) stake by 13% in Q2 2026, buying an estimated $2.69M and bringing the position to 436,700 shares worth $22.9M. The position accounts for 3.79% of the portfolio, ranked #6.

Sio Capital Management first reported a position in GSK in Q4 2014 and has held it in 22 quarters since. The position peaked at $23.3M in Q3 2022. 1,045 funds tracked by Wall St. Rank hold GSK as of Q2 2026.

  • Sio Capital Management held 436,700 shares of GSK worth $22.9M as of Q2 2026.
  • Sio Capital Management bought 50,821 GSK shares in Q2 2026, an estimated $2.69M.
  • GSK made up 3.79% of Sio Capital Management's portfolio in Q2 2026, its #6 holding.
  • Sio Capital Management first reported a position in GSK in Q4 2014 and has held it in 22 quarters since.
  • Sio Capital Management's GSK position peaked at $23.3M in Q3 2022.
  • 1,045 funds tracked by Wall St. Rank held GSK as of Q2 2026.

Based on Sio Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.