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GlaxoSmithKline GSK

US equityMarket cap rank #203Drug Manufacturers - General CAR-T Therapy Infectious Disease

$50.33 −$0.08 (-0.16%)

Market closed · Nov 7, 9:10 am ET · Last extended-hours $50.33 0.00%

Open$49.07

Prev close$50.41

Day range$48.94 – $50.74

Volume3.19M

Market cap$100.88B

P/E (TTM)17.5

Dividend yield3.56%

Ownership & positioning

Who holds it, who is betting against it, and where the big money is moving

Institutional ownership87.9%-0.65 pts vs. prior quarter

Institutions holding1,599-28 vs. prior quarter

Short interest0.73% of floatDays to cover 2.1 · as of 15 Oct 2026

Short-sale volume share20.2%5-day average of daily volume

Short-sale volume as % of daily volume

Large-order net flow, last 20 sessions

Net of large-order buying minus selling, in USD. Over this window: −$81.32M (7 inflow days, 13 outflow days).

Net flow by order size, last 20 sessions

Super/Big orders approximate institutional-size trades; Mid/Small approximate retail-size trades. Net buy minus sell value in each bucket, summed over the window.

The five largest holders on file together own 24.1% of shares outstanding.

Largest holders

BlackRock9.41%
Dodge & Cox4.37%
Vanguard Capital Management, LLC4.02%
FMR3.48%
Wellington Management Group2.82%
State Street Global Advisors2.44%
Fisher Investments2.19%
UBS Asset Management2.12%

By investor type

Mutual Fund72.95%
Private Company4.14%
Sovereign Wealth Fund3.18%
Public Company2.60%
Government Pension Fund1.82%
Corporate Pension Plan1.79%
Hedge Fund0.82%
Insurance Company0.25%

Reported short interest has held roughly steady near 0.73% of float over the last 6 biweekly reports (31 Jul 2026 to 15 Oct 2026).

Recent institutional activity

Holder	Type	Period	Share change	New stake
SEI Investments Company	Mutual Fund	2026/Q3	+1,566,501	0.2%
Coöperatieve Rabobank U.A.	Private Company	2026/Q3	+3,974,642	0.3%
Geode Capital Management, LLC	Mutual Fund	2026/Q3	+3,948,998	1.1%
MFS Investment Management	Mutual Fund	2026/Q3	+3,710,737	0.9%
UBS Asset Management	Mutual Fund	2026/Q3	+3,606,275	2.1%
ARGA Investment Management, LLC	Mutual Fund	2026/Q3	+3,418,760	0.3%
Deutsche Asset & Wealth Management	Mutual Fund	2026/Q3	+2,624,438	0.5%
Janus Henderson Group plc	Mutual Fund	2026/Q3	+2,572,768	0.7%
Société Générale Société anonyme	Public Company	2026/Q3	+2,570,200	0.3%
Fidelity International Ltd	Mutual Fund	2026/Q3	+2,198,208	0.3%
Northern Trust Global Investments	Mutual Fund	2026/Q3	+1,841,974	0.7%
State Street Global Advisors	Mutual Fund	2026/Q3	+1,825,370	2.4%
Wellington Management Group	Mutual Fund	2026/Q3	+1,820,762	2.8%
Columbia Management Investment Advisers, LLC	Mutual Fund	2026/Q3	+1,804,024	0.8%
Lazard Asset Management LLC	Mutual Fund	2026/Q3	+1,522,517	0.1%

Institutional buy/sell activity by reporting period, largest moves first.

Short interest, by report

Report date	Shares short	% of float	Days to cover
15 Oct 2026	14,579,567	0.7%	2.1
30 Sep 2026	14,797,116	0.7%	4.1
15 Sep 2026	14,652,083	0.7%	5.5
31 Aug 2026	13,546,612	0.7%	4.8
14 Aug 2026	14,778,190	0.7%	4.5
31 Jul 2026	14,516,962	0.7%	2.6

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