SMMT

Summit Therapeutics Inc
Health CareUSCUSIP 86627T108◍ Confluence graph
Tracked 13F Holders
206
-102 QoQ
13F Value (tracked)
$2.2B
Insider Net · 180d
$103.6M
3↑ 0↓
Recent Filings
15
Smart-money sentimentBullish
BearishBullish
13F funds (latest Q)32 adding · 16 trimming
Insider net (180d)+$103.6M

Who owns SMMT?

206 tracked 13F filers

206 tracked 13F filers disclose a position in SMMT as of the latest SEC 13F filings, a combined $2.2B in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

All quarters use one ordinary-share-equivalent series. Historical ADS are converted at 2 ADS = 1 ordinary share. Expand a row for the exact calculation; the residual is not classified as a trade.
#FundPosition valueSharesLast moveAs ofHistory
1BAKER BROS. ADVISORS LP
$690.0M
36.4M
Held
Q1 2026
2FMR LLC
$205.8M
10.9M
−19%
Reduced · −2.5M sh
Q1 2026
3BlackRock, Inc.
$183.0M
9.7M
+3.1%
Added · +292K sh
Q1 2026
4STATE STREET CORP
$139.0M
9.5M
+36%
Added · +2.5M sh
Q2 2026
5PRICE T ROWE ASSOCIATES INC /MD/
$156.9M
8.3M
−12%
Reduced · −1.1M sh
Q1 2026
6VANGUARD CAPITAL MANAGEMENT LLC
$108.3M
5.7M
First observed position
No prior filed position
Q1 2026
7VANGUARD PORTFOLIO MANAGEMENT LLC
$99.2M
5.2M
First observed position
No prior filed position
Q1 2026
8UBS Group AG
$69.8M
3.7M
+323%
Added · +2.8M sh
Q1 2026
9GEODE CAPITAL MANAGEMENT, LLC
$50.0M
3.4M
+3.4%
Added · +111K sh
Q2 2026
10D. E. Shaw & Co., Inc.
$42.5M
2.2M
+440%
Added · +1.8M sh
Q1 2026
11MORGAN STANLEY
$31.3M
1.7M
+78%
Added · +724K sh
Q1 2026
12NORGES BANK
$24.0M
1.4M
−1.1%
Reduced · −16K sh
Q4 2025
13Pictet Asset Management Holding SA
$24.0M
1.3M
−4.4%
Reduced · −61K sh
Q1 2026
14TWO SIGMA INVESTMENTS, LP
$18.6M
981K
+70%
Added · +403K sh
Q1 2026
15APEIRON CAPITAL Ltd
$14.0M
962K
−27%
Reduced · −347K sh
Q2 2026
16CHARLES SCHWAB INVESTMENT MANAGEMENT INC
$18.2M
961K
+7.6%
Added · +68K sh
Q1 2026
17TD ASSET MANAGEMENT INC
$18.1M
957K
−21%
Reduced · −248K sh
Q1 2026
18VANGUARD FIDUCIARY TRUST CO
$17.7M
934K
First observed position
No prior filed position
Q1 2026
19Point72 Asset Management, L.P.
$14.9M
784K
New
+784K sh
Q1 2026
20Rock Springs Capital Management LP
$10.4M
715K
+0.7%
Added · +5K sh
Q2 2026
21Aberdeen Group plc
$12.6M
665K
−28%
Reduced · −262K sh
Q1 2026
22Squarepoint Ops LLC
$11.6M
614K
−14%
Reduced · −102K sh
Q1 2026
23SUSQUEHANNA INTERNATIONAL GROUP, LLP
$11.5M
604K
Added
Added · +604K sh
Q1 2026
24BANK OF AMERICA CORP /DE/
$11.4M
599K
+25%
Added · +121K sh
Q1 2026
25MANUFACTURERS LIFE INSURANCE COMPANY, THE
$11.2M
593K
+34%
Added · +152K sh
Q1 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Is SMMT being bought or sold by institutions?

Last quarter, 9 funds opened a new position in SMMT and 23 added to an existing one, while 16 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).

Opened (NEW)
9
funds
Added
23
funds
Reduced
16
funds
Exited
0
funds

Funds that own SMMT also own

CompanyCo-held byCombined value
NVIDIA CORPNVDA110 funds$228.3B
AMAZON.COM INCAMZN107 funds$106.0B
MICROSOFT CORPMSFT106 funds$152.5B
ELI LILLY & COLLY106 funds$43.3B
MICRON TECHNOLOGY INCMU106 funds$23.2B
ALPHABET INC-CL AGOOGL105 funds$92.3B
META PLATFORMS INC-CLASS AMETA105 funds$65.8B
BOSTON SCIENTIFIC CORPBSX105 funds$8.2B
APPLIED MATERIALS INCAMAT104 funds$18.6B
COSTCO WHOLESALE CORPCOST102 funds$20.9B
APPLE INCAAPL101 funds$175.0B
BROADCOM INCAVGO101 funds$91.3B

Ranked by how many of SMMT's institutional holders also hold each name, a cross-fund conviction signal.

Insider activity (Form 4)

Full insider page →
Buys · 180d
$103.6M
3 insiders
Sells · 180d
$0
0 insiders
Net
$103.6M
6 P/S txns
Signal
Net Buying
open-market
DateInsiderRoleActionSharesValue
Jun 12, 2026DUGGAN ROBERT WCo-Chief Executive Officer, Director, 10% OwnerBuy (P)3.8M$50.0M
Jun 12, 2026Zanganeh MahkamCo-Chief Executive Officer, Director, 10% OwnerBuy (P)3.8M$50.0M
Jun 4, 2026Zanganeh MahkamCo-Chief Executive Officer, Director, 10% OwnerBuy (P)100K$1.5M
Jun 4, 2026DUGGAN ROBERT WCo-Chief Executive Officer, Director, 10% OwnerBuy (P)100K$1.5M
Jun 4, 2026Soni Manmeet SinghCOO and CFO, DirectorBuy (P)25K$362K
Jun 4, 2026Soni Manmeet SinghCOO and CFO, DirectorBuy (P)25K$361K
Oct 21, 2025DUGGAN ROBERT WCo-Chief Executive Officer, Director, 10% OwnerBuy (P)27K$500K
Oct 21, 2025Zanganeh MahkamCo-Chief Executive Officer, Director, 10% OwnerBuy (P)27K$500K
Oct 21, 2025Xia YuDirectorBuy (P)534K$10.0M
Sep 11, 2025DUGGAN ROBERT WCo-Chief Executive Officer, Director, 10% OwnerBuy (P)5K$90K
Sep 11, 2025Zanganeh MahkamCo-Chief Executive Officer, Director, 10% OwnerBuy (P)5K$90K
Sep 10, 2025DUGGAN ROBERT WCo-Chief Executive Officer, Director, 10% OwnerBuy (P)333K$5.9M

Institutional ownership over time

97 funds-24 since Q3 2024
0102203Q3 2024Q1 2025Q3 2025Q1 2026Q2 2026
funds holding aggregate valuelatest $271.0M

Recent filings

15 shown

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Connected entities for SMMT

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Ask your agent what changed in SMMT

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/SMMT/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for SMMT.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for SMMT. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.