Summit Therapeutics Inc. (SMMT) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

0Shares Outstanding

617,473Shares held by institutions

$10,478,517Value of institutional holdings

13.27%Institutional ownership %

4.45%Shares Changed QoQ

237No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Summit Therapeutics Inc. (NASDAQ:SMMT) has 202 institutional investors that have filed 13F reports for the period ending December 2025.

Their combined ownership stood at 14.6% of outstanding shares in December 2025, up from 14.0% in September 2025.
Their total shares held in SMMT increased 13.38% quarter over quarter, and separately, investors owning Summit Therapeutics stayed flat from a year ago.
Activity in SMMT broke down as 107 buyers, 65 sellers, and 30 unchanged among 202 total holders.
Combined, these investors held 108.46Mn shares in SMMT for December 2025, up by 12.8Mn shares quarter on quarter, and up 15.02Mn shares year over year.
As of December 31, 2025, BAKER BROS. ADVISORS LP held the largest stake in Summit Therapeutics with 36.39Mn shares, accounting for 4.9% of total shares outstanding.
The biggest buyers of Summit Therapeutics for the quarter ending December 2025 included FMR LLC (4.44Mn), BAKER BROS. ADVISORS LP (2.67Mn), CITADEL ADVISORS LLC (2.27Mn), BlackRock, Inc. (2.0Mn), NORGES BANK (1.37Mn).
Top sellers of SMMT stock for the quarter ending December 2025 included Morgan Stanley (1.0Mn), Bank Of America Corp /De/ (837.23K), Nomura Holdings Inc (506.69K), UBS Group AG (408.06K), TUDOR INVESTMENT CORP ET AL (271.4K).
Summit Therapeutics's 10 largest shareholders as of December 2025 include BAKER BROS. ADVISORS LP (36.39Mn), FMR LLC (13.36Mn), VANGUARD GROUP INC (11.18Mn), BlackRock, Inc. (9.36Mn), State Street Corp (6.64Mn), GEODE CAPITAL MANAGEMENT, LLC (3.15Mn), CITADEL ADVISORS LLC (2.48Mn), Polymer Capital Management (HK) LTD (1.42Mn), Pictet Asset Management Holding SA (1.38Mn), NORGES BANK (1.37Mn) per Business Quant data.

202 Institutional Holders

617,473 Total Shares Held

Rows:

Download Data

Owner Name	Date	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	1,998,128	27.13%	$0.00
BAKER BROS. ADVISORS LP	31 Dec, 2025	2,668,089	7.91%	$0.00
Polymer Capital Management (HK) LTD	31 Dec, 2025	603,879	73.89%	$0.00
Barclays Plc	31 Dec, 2025	-387,505	-53.38%	$0.00
FMR LLC	31 Dec, 2025	4,442,920	49.82%	$0.00
Pictet Asset Management Holding SA	31 Dec, 2025	-220,388	-13.74%	$0.00
HSBC HOLDINGS PLC	31 Dec, 2025	197,532	0.00%	$0.00
VANGUARD GROUP INC	31 Dec, 2025	-202,508	-1.78%	$0.00
APEIRON CAPITAL Ltd	31 Dec, 2025	-1,700	-0.13%	$0.00
State Street Corp	31 Dec, 2025	274,425	4.31%	$0.00
Aberdeen Group plc	31 Dec, 2025	-212,359	-18.64%	$0.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	14,745	0.47%	$0.00
UBS Group AG	31 Dec, 2025	-408,064	-31.91%	$0.00
CITADEL ADVISORS LLC	31 Dec, 2025	2,272,996	1,121.29%	$0.00
Squarepoint Ops LLC	31 Dec, 2025	605,584	551.40%	$0.00
NORGES BANK	31 Dec, 2025	1,373,943	0.00%	$0.00
READYSTATE ASSET MANAGEMENT LP	31 Dec, 2025	306,184	0.00%	$0.00
TD ASSET MANAGEMENT INC	31 Dec, 2025	667,742	124.22%	$0.00
Nuveen, LLC	31 Dec, 2025	0	0.00%	$0.00
Morgan Stanley	31 Dec, 2025	-1,000,249	-51.91%	$0.00

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