GlaxoSmithKline

GSK • XNYS

GlaxoSmithKline is a publicly traded company on XNYS. As of Q3 2025, 810 institutional investors hold shares in this company, with total holdings valued at $15.0B. DODGE & COX is the largest holder with a position valued at $3.4B.

Overview

Overview of institutional ownership in GSK as of Q3 2025

All Institutions

Institutions: 810
Value Held: $15.0B
Shares Held: 347.1M
Avg Position: $18.5M
Median Position: $472.9K

Hedge Funds

Hedge Funds: 37
Value Held: $739.8M
Shares Held: 17.1M
Avg Position: $20.0M
Median Position: $2.8M

Biggest Investors

Institutions with the largest positions in GSK as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
DODGE & COX Long Only Manager	Dana Morton Emery CEO	$3.4B 1.83% of portfolio	0.00% 78.4M shares	Q4 2022 Held for 2y 11m	$185.33B
FMR LLC Institution	-	$2.9B 0.15% of portfolio	0.00% 66.1M shares	Q4 2022 Held for 2y 11m	$1.92T
F Fisher Asset Management, LLC Institution	-	$1.4B 0.50% of portfolio	0.00% 32.2M shares	Q1 2023 Held for 2y 8m	$276.29B
PRIMECAP MANAGEMENT CO/CA/ Long Only Manager	Theofanis A Kolokotrones Chairman	$1.1B 0.86% of portfolio	0.00% 25.8M shares	Q4 2022 Held for 2y 11m	$128.84B
Holocene Advisors, LP Hedge Fund•Long/Short	John Brandon Haley CIO	$306.5M 0.70% of portfolio	0.00% 7.1M shares	Q1 2023 Held for 2y 8m	$43.5B
STATE STREET CORP Institution	Ronald P. O'Hanley CEO	$288.7M 0.01% of portfolio	0.00% 6.6M shares	Q4 2022 Held for 2y 11m	$2.88T
GOLDMAN SACHS GROUP INC Institution	David M. Solomon CEO	$281.4M 0.04% of portfolio	0.00% 6.5M shares	Q3 2025 Held for 2 months	$691.34B
Mondrian Investment Partners LTD Long Only Manager	Elizabeth Anne Desmond CEO	$251.9M 4.21% of portfolio	0.00% 5.8M shares	Q3 2025 Held for 2 months	$6.0B
MORGAN STANLEY RIA/Wealth	Jed Finn CEO	$213.6M 0.01% of portfolio	0.00% 4.9M shares	Q4 2022 Held for 2y 11m	$1.65T
UBS Group AG Institution	Sergio P. Ermotti CEO	$200.5M 0.04% of portfolio	0.00% 4.6M shares	Q1 2025 Held for 8 months	$511.54B

Net Capital Flow

Institutional buying and selling activity for GSK in Q3 2025

Traded: +$349.7M
Buyers: 396
Sellers: 342
Total Bought: +$816.8M
Total Sold: −$467.0M
Avg Position: $16.9M

Biggest Buyers

Institution	Net Bought	Current Position
FMR LLC Institution	+$221.8M +5.1M shares	$2.9B 66.1M shares
WELLINGTON MANAGEMENT CO LLP Long Only Manager	+$84.8M +2.0M shares	$147.6M 3.4M shares
MANNING & NAPIER ADVISORS LLC RIA/Wealth	+$72.0M +1.7M shares	$79.9M 1.9M shares
Holocene Advisors, LP Hedge Fund•Long/Short	+$64.3M +1.5M shares	$306.5M 7.1M shares
BALYASNY ASSET MANAGEMENT LLC Hedge Fund•Multi-Strategy	+$58.9M +1.4M shares	$58.9M 1.4M shares
F Fisher Asset Management, LLC Institution	+$38.4M +889.2K shares	$1.4B 32.2M shares
BANK OF MONTREAL /CAN/ Institution	+$20.1M +465.9K shares	$123.1M 2.9M shares
Connor, Clark & Lunn Investment Management Ltd. Long Only Manager	+$16.5M +382.8K shares	$20.7M 480.4K shares
B BlackRock, Inc. Institution	+$16.0M +370.0K shares	$85.2M 2.0M shares
MML INVESTORS SERVICES, LLC RIA/Wealth	+$13.2M +-22.2K shares	$13.2M 306.5K shares

Biggest Sellers

Institution	Net Sold	Current Position
PRIMECAP MANAGEMENT CO/CA/ Long Only Manager	−$84.6M −2.0M shares	$1.1B 25.8M shares
Clark Capital Management Group, Inc. RIA/Wealth	−$68.3M −1.8M shares	Sold Off 0 shares
UBS Group AG Institution	−$25.6M −592.9K shares	$200.5M 4.6M shares
BANK OF AMERICA CORP /DE/ Institution	−$23.4M −542.6K shares	$195.3M 4.5M shares
K KAHN BROTHERS & CO INC /DE/ RIA/Wealth	−$17.2M −399.0K shares	$11.3M 260.8K shares
Brandywine Global Investment Management, LLC Long Only Manager	−$15.8M −366.8K shares	$49.4M 1.1M shares
DODGE & COX Long Only Manager	−$15.3M −354.1K shares	$3.4B 78.4M shares
ENVESTNET ASSET MANAGEMENT INC Long Only Manager	−$14.8M −342.6K shares	$137.8M 3.2M shares
Y Yelin Lapidot Holdings Management Ltd. Institution	−$11.9M −275.6K shares	$3.8M 88.5K shares
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant	−$11.3M −262.9K shares	$85.8M 2.0M shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited GSK in Q3 2025

New Positions: 58
New Value: $38.8M
Exited Positions: 75
Exited Value: $101.8M

New Positions

Institution	Position Value
MML INVESTORS SERVICES, LLC RIA/Wealth	$13.2M 306.5K shares
N NEW YORK STATE COMMON RETIREMENT FUND Institution	$4.2M 97.4K shares
A ABC ARBITRAGE SA Institution	$3.3M 76.8K shares
BARCLAYS PLC Institution	$2.1M 49.8K shares
A American Assets Investment Management, LLC Hedge Fund•Value	$1.7M 40.0K shares
NBC SECURITIES, INC. RIA/Wealth	$1.5M 35.3K shares
LAZARD ASSET MANAGEMENT LLC Long Only Manager	$1.5M 34.6K shares
A Abundance Wealth Counselors RIA/Wealth	$1.5M 34.6K shares
ROCKLAND TRUST CO Private Equity	$1.2M 28.4K shares
H Heritage Trust Co Institution	$568.6K 13.2K shares

Exited Positions

Institution	Previous Position
Clark Capital Management Group, Inc. RIA/Wealth	$68.3M 1.8M shares
K Kranot Hishtalmut Le Morim Ve Gananot Havera Menahelet LTD Institution	$7.8M 201.3K shares
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$4.7M 121.7K shares
Atom Investors LP Hedge Fund•Market Neutral	$3.0M 79.2K shares
K Kranot Hishtalmut Le Morim Tichoniim Havera Menahelet LTD Institution	$2.7M 69.1K shares
A Altshuler Shaham Ltd Institution	$1.8M 47.0K shares
G GROUP ONE TRADING, L.P. Institution	$1.5M 38.6K shares
WHITTIER TRUST CO RIA/Wealth	$923.2K 24.0K shares
GLUSKIN SHEFF & ASSOC INC Long Only Manager	$921.0K 24.0K shares
Scientech Research LLC Hedge Fund•Market Neutral	$896.2K 23.3K shares

Options Activity

Institutions with the largest Call and Put options positions in GSK as of Q3 2025

Call Positions: 15
Call Value: $137.3M
Put Positions: 18
Put Value: $77.8M

Call Positions

Institution	Position Value
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$50.6M 11.7K contracts
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$30.0M 6.9K contracts
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	$21.5M 5.0K contracts
T Twin Tree Management, LP Hedge Fund•Vol Arbitrage	$13.3M 3.1K contracts
CAPITAL FUND MANAGEMENT S.A. Hedge Fund•Quant Macro	$4.8M 1.1K contracts
Walleye Trading Advisors, LLC Hedge Fund•Multi-Strategy	$4.5M 1.1K contracts
W WOLVERINE TRADING, LLC Institution	$3.1M 761.0 contracts
S Squarepoint Ops LLC Hedge Fund•Quant	$2.2M 510.0 contracts
TUDOR INVESTMENT CORP ET AL Hedge Fund•Multi-Strategy	$2.2M 509.0 contracts
P PEAK6 LLC Institution	$1.9M 435.0 contracts

Put Positions

Institution	Position Value
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$27.9M 6.5K contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$18.4M 4.3K contracts
J J. Goldman & Co LP Hedge Fund•Multi-Strategy	$6.9M 1.6K contracts
CAPITAL FUND MANAGEMENT S.A. Hedge Fund•Quant Macro	$6.1M 1.4K contracts
J JANE STREET GROUP, LLC Institution	$6.1M 1.4K contracts
Walleye Trading Advisors, LLC Hedge Fund•Multi-Strategy	$3.3M 766.0 contracts
Verition Fund Management LLC Hedge Fund•Multi-Strategy	$2.1M 486.0 contracts
BARCLAYS PLC Institution	$1.6M 360.0 contracts
W WOLVERINE TRADING, LLC Institution	$1.5M 362.0 contracts
Walleye Trading LLC RIA/Wealth	$1.3M 296.0 contracts

Most Committed Institutions

Institutions with GSK as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
Eversept Partners, LLC Hedge Fund•Long/Short	Rishi Rasesh Shah President	7.01% $91.5M	0.00% 2.1M shares	Q1 2018 Held for 7y 8m	$1.3B
Mondrian Investment Partners LTD Long Only Manager	Elizabeth Anne Desmond CEO	4.21% $251.9M	0.00% 5.8M shares	Q3 2025 Held for 2 months	$6.0B
Equity Investment Corp Acquisition Inc Long Only Manager	Richard Terrence Irrgang CEO	3.86% $184.3M	0.00% 4.3M shares	Q4 2022 Held for 2y 11m	$4.8B
Hillman Capital Management, Inc. Long Only Manager	Mark Alan Hillman CEO	3.56% $6.1M	0.00% 141.8K shares	Q4 2022 Held for 2y 11m	$171.8M
Sio Capital Management, LLC Hedge Fund•Long/Short	Judah Zvi Drillick CEO	2.94% $11.6M	0.00% 268.9K shares	Q3 2025 Held for 2 months	$395.2M
Keystone Financial Planning, Inc. RIA/Wealth	Keith L. Sechler CEO	2.85% $9.8M	0.00% 227.5K shares	Q4 2022 Held for 2y 11m	$344.1M
Altrius Capital Management Inc RIA/Wealth	James Michael Russo CEO	2.68% $9.9M	0.00% 230.1K shares	Q4 2022 Held for 2y 11m	$369.9M
Callodine Capital Management, LP Hedge Fund•Long/Short	James Stuart Morrow CEO	2.68% $30.3M	0.00% 702.1K shares	Q1 2025 Held for 8 months	$1.1B
T TNB Financial Institution	-	2.41% $38.2M	0.00% 885.8K shares	Q1 2023 Held for 2y 8m	$1.6B
KEATING INVESTMENT COUNSELORS INC RIA/Wealth	Richard Travis Keating President	2.33% $7.7M	0.00% 179.5K shares	Q4 2024 Held for 11 months	$333.0M