SMWB

Similarweb Ltd
Information TechnologyUSCUSIP M84137104◍ Confluence graph
Tracked 13F Holders
67
-47 QoQ
13F Value (tracked)
$102.6M
Insider Net · 180d
-$8.7M
4↑ 1↓
Recent Filings
7
Smart-money sentimentMixed
BearishBullish
13F funds (latest Q)27 adding · 7 trimming
Insider net (180d)-$8.7M

Who owns SMWB?

67 tracked 13F filers

67 tracked 13F filers disclose a position in SMWB as of the latest SEC 13F filings, a combined $102.6M 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.

#FundPosition valueSharesLast moveAs ofHistory
1MENORA MIVTACHIM HOLDINGS LTD.
$24.6M
4.0M
Held
Q2 2026
2Ulysses Management LLC
$7.8M
3.0M
Held
Q1 2026
3S SQUARED TECHNOLOGY, LLC
$4.2M
1.6M
+106%
Added · +825K sh
Q1 2026
4Schonfeld Strategic Advisors LLC
$7.4M
1.2M
+319%
Added · +921K sh
Q2 2026
5Y.D. More Investments Ltd
$7.0M
1.1M
−0.4%
Reduced · −4K sh
Q2 2026
6MILLENNIUM MANAGEMENT LLC
$2.2M
826K
+131%
Added · +468K sh
Q1 2026
7RENAISSANCE TECHNOLOGIES LLC
$1.9M
740K
+105%
Added · +378K sh
Q1 2026
8Alpha Family Trust
$4.0M
659K
Held
Q2 2026
9NANO CAP NEW MILLENNIUM GROWTH FUND L P
$4.0M
650K
+67%
Added · +260K sh
Q2 2026
10HERALD INVESTMENT MANAGEMENT Ltd
$4.0M
645K
Held
Q2 2026
11P.A.W. CAPITAL CORP
$3.9M
640K
+28%
Added · +140K sh
Q2 2026
12CDC Financial, Inc.
$1.7M
639K
+351%
Added · +497K sh
Q1 2026
13MARSHALL WACE, LLP
$1.7M
638K
+118%
Added · +346K sh
Q1 2026
14Sphera Management Technology Funds Ltd
$3.8M
615K
Held
Q2 2026
15CenterBook Partners LP
$3.7M
600K
−55%
Reduced · −725K sh
Q2 2026
16MORGAN STANLEY
$1.5M
592K
+131%
Added · +335K sh
Q1 2026
17PEAK6 LLC
$3.0M
485K
+51%
Added · +164K sh
Q2 2026
18CITADEL ADVISORS LLC
$1.2M
476K
+138%
Added · +276K sh
Q1 2026
19Connor, Clark & Lunn Investment Management Ltd.
$2.7M
446K
−16%
Reduced · −88K sh
Q2 2026
20Qube Research & Technologies Ltd
$1.1M
416K
25×
Added · +400K sh
Q1 2026
21ARK Investment Management LLC
$919K
352K
+49%
Added · +116K sh
Q1 2026
22JANE STREET GROUP, LLC
$604K
231K
+24%
Added · +45K sh
Q1 2026
23XTX Topco Ltd
$597K
229K
New
+229K sh
Q1 2026
24LAVELLE CAPITAL LP
$1.2M
203K
Held
Q2 2026
25UBS Group AG
$518K
199K
−63%
Reduced · −338K 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 SMWB being bought or sold by institutions?

Last quarter, 10 funds opened a new position in SMWB and 17 added to an existing one, while 7 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)
10
funds
Added
17
funds
Reduced
7
funds
Exited
0
funds

Funds that own SMWB also own

CompanyCo-held byCombined value
MICROSOFT CORPMSFT38 funds$16.2B
AMAZON.COM INCAMZN36 funds$15.5B
NVIDIA CORPNVDA34 funds$26.3B
ELI LILLY & COLLY33 funds$4.8B
META PLATFORMS INC-CLASS AMETA32 funds$8.6B
BROADCOM INCAVGO31 funds$11.1B
MICRON TECHNOLOGY INCMU31 funds$8.6B
JPMORGAN CHASE & COJPM31 funds$5.4B
ADVANCED MICRO DEVICESAMD31 funds$5.1B
ALPHABET INC-CL AGOOGL30 funds$12.7B
VISA INC-CLASS A SHARESV30 funds$4.6B
INTEL CORPINTC30 funds$2.9B

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

Insider activity (Form 4)

Full insider page →
Buys · 180d
$1.0M
4 insiders
Sells · 180d
$9.7M
1 insiders
Net
-$8.7M
17 P/S txns
Signal
Net Selling
open-market
DateInsiderRoleActionSharesValue
Aug 26, 2026Offer OrChief Executive OfficerSell (S)140K$1.3M
Aug 26, 2026Offer OrChief Executive OfficerSell (S)39K$351K
Aug 26, 2026Offer OrChief Executive OfficerSell (S)39K$354K
Aug 26, 2026Offer OrChief Executive OfficerSell (S)165K$1.5M
Aug 14, 2026Offer OrChief Executive OfficerSell (S)75K$664K
Aug 14, 2026Offer OrChief Executive OfficerSell (S)60K$534K
Aug 13, 2026Offer OrChief Executive OfficerSell (S)40K$356K
Aug 13, 2026Offer OrChief Executive OfficerSell (S)106K$928K
Aug 13, 2026Offer OrChief Executive OfficerSell (S)200K$1.8M
Aug 13, 2026Offer OrChief Executive OfficerSell (S)229K$2.0M
Jun 1, 2026Offer OrChief Executive Officer, DirectorBuy (P)50K$208K
May 21, 2026Eilam BarakDirectorBuy (P)50K$193K

Institutional ownership over time

23 funds-48 since Q3 2024
04691Q3 2024Q1 2025Q3 2025Q1 2026Q2 2026
funds holding aggregate valuelatest $64.8M

Recent filings

7 shown

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Connected entities for SMWB

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Ask your agent what changed in SMWB

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/SMWB/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for SMWB.
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 SMWB. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.