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Jane Street’s GSK GSK Stock Holding History

Jane Street’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
2026
Q1 		$10.2M Sell
185,500
-66,500
-26% -$3.6M ﹤0.01% 2510
2025
Q4 		$12.4M Sell
252,000
-48,000
-16% -$2.24M ﹤0.01% 2070
2025
Q3 		$12.9M Buy
300,000
+9,300
+3% +$363K ﹤0.01% 2095
2025
Q2 		$11.2M Buy
290,700
+224,600
+340% +$8.58M ﹤0.01% 2008
2025
Q1 		$2.56M Buy
66,100
+20,100
+44% +$736K ﹤0.01% 3964
2024
Q4 		$1.56M Buy
+46,000
New +$1.66M ﹤0.01% 4564
2024
Q1 		– Sell
-8,100
Closed -$299K – 9537
2023
Q4 		$299K Buy
8,100
+2,400
+42% +$86.2K ﹤0.01% 7600
2023
Q3 		$208K Sell
5,700
-43,600
-88% -$1.55M ﹤0.01% 7567
2023
Q2 		$1.74M Buy
49,300
+28,500
+137% +$1.02M ﹤0.01% 4369
2023
Q1 		$733K Buy
20,800
+10,700
+106% +$374K ﹤0.01% 5625
2022
Q4 		$351K Sell
10,100
-34,040
-77% -$1.13M ﹤0.01% 6749
2022
Q3 		$1.29M Buy
44,140
+19,340
+78% +$733K ﹤0.01% 4967
2022
Q2 		$1.35M Sell
24,800
-201,600
-89% -$11.1M ﹤0.01% 4920
2022
Q1 		$12.3M Sell
226,400
-106,720
-32% -$5.8M ﹤0.01% 1732
2021
Q4 		$18.4M Sell
333,120
-79,440
-19% -$4.13M 0.01% 1279
2021
Q3 		$19.7M Buy
412,560
+238,080
+136% +$12M 0.01% 1154
2021
Q2 		$8.69M Buy
174,480
+41,680
+31% +$2M ﹤0.01% 1878
2021
Q1 		$5.92M Buy
132,800
+4,080
+3% +$185K ﹤0.01% 2162
2020
Q4 		$5.92M Buy
128,720
+15,760
+14% +$724K ﹤0.01% 1929
2020
Q3 		$5.32M Sell
112,960
-25,680
-19% -$1.29M ﹤0.01% 1786
2020
Q2 		$7.07M Buy
138,640
+98,000
+241% +$5.03M 0.01% 1471
2020
Q1 		$1.93M Buy
40,640
+160
+0.4% +$8.54K ﹤0.01% 2058
2019
Q4 		$2.38M Buy
40,480
+15,840
+64% +$881K ﹤0.01% 1740
2019
Q3 		$1.31M Buy
+24,640
New +$1.27M ﹤0.01% 2273
2019
Q1 		– Sell
-8,320
Closed -$397K – 5243
2018
Q4 		$397K Sell
8,320
-4,960
-37% -$244K ﹤0.01% 3726
2018
Q3 		$667K Buy
13,280
+6,160
+87% +$313K ﹤0.01% 3269
2018
Q2 		$359K Sell
7,120
-50,240
-88% -$2.53M ﹤0.01% 3945
2018
Q1 		$2.8M Buy
57,360
+51,520
+882% +$2.4M 0.01% 1483
2017
Q4 		$259K Buy
5,840
+1,120
+24% +$51.7K ﹤0.01% 3919
2017
Q3 		$240K Sell
4,720
-1,120
-19% -$56.8K ﹤0.01% 3940
2017
Q2 		$315K Buy
+5,840
New +$311K ﹤0.01% 3553
2017
Q1 		– Sell
-20,960
Closed -$1.01M – 4350
2016
Q4 		$1.01M Buy
20,960
+7,520
+56% +$371K ﹤0.01% 2062
2016
Q3 		$725K Sell
13,440
-6,400
-32% -$351K ﹤0.01% 2346
2016
Q2 		$1.07M Buy
19,840
+7,200
+57% +$379K 0.01% 1901
2016
Q1 		$641K Sell
12,640
-3,760
-23% -$187K ﹤0.01% 2319
2015
Q4 		$827K Buy
+16,400
New +$836K 0.01% 1949
2013
Q3 		– Sell
-4,000
Closed -$250K – 2864
2013
Q2 		$250K Buy
+4,000
New +$254K ﹤0.01% 2048

Other funds holding GSK

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Dodge & Cox
Dodge & Cox San Francisco, California $182B AUM 14.68% 1-Year Est. Return
Fisher Asset Management
Fisher Asset Management Camas, Washington $295B AUM 31.6% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
JEST
JTC Employer Solutions Trustee St Helier, Jersey $1.2B AUM 37.55% 1-Year Est. Return
Royal Bank of Canada
Royal Bank of Canada Toronto, Ontario, Canada $570B AUM 27.57% 1-Year Est. Return

Jane Street's GSK Position: Q1 2026 in Review

Jane Street reduced its GSK (GSK) stake by 38% in Q1 2026, selling an estimated $22.3M and leaving 661,399 shares worth $36.5M. The position accounts for ﹤0.01% of the portfolio, ranked #1272.

Jane Street first reported a position in GSK in Q2 2013 and has held it in 45 quarters since. The position peaked at $107M in Q3 2019. 1,031 funds tracked by Wall St. Rank hold GSK as of Q1 2026.

  • Jane Street held 661,399 shares of GSK worth $36.5M as of Q1 2026.
  • Jane Street sold 411,956 GSK shares in Q1 2026, an estimated $22.3M.
  • GSK made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #1272 holding.
  • Jane Street first reported a position in GSK in Q2 2013 and has held it in 45 quarters since.
  • Jane Street's GSK position peaked at $107M in Q3 2019.
  • 1,031 funds tracked by Wall St. Rank held GSK as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.