Comparable stake leader
London Stock Exchange Group plc
SEC ownership of Tradeweb Markets Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001758730.
Disclosed value leader
London Stock Exchange Group plc
Comparable rows
50/50
Latest evidence
14 Aug 2026
- Public ticker
- TW on Nasdaq
- Parsed ownership sources
-
13D/G, 13F, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
London Stock Exchange Group plc
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
London Stock Exchange Group plc
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
14 Aug 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001758730
- Issuer location
- New York, NY
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Tradeweb Markets Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
London Stock Exchange Gro...
Disclosed value leader
London Stock Exchange Gro...
Comparable rows
50/50
Latest evidence
14 Aug 2026
13D/G
13F
3/4/5
Lead comparable stake: 51%
13D/G row: London Stock Exchange Group plc
Showing 1-8 of 50 holder rows.
Quick read
London Stock Exchange Group plc leads the comparable SEC ownership view at 51%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens London Stock Exchange Group plc's linked filing trail.
Comparable ownership
Top 5
London Stock Exchange Group plc
51%
PRICE T ROWE ASSOCIATES INC /MD/
14%
BlackRock, Inc.
5.5%
WELLINGTON MANAGEMENT GROUP LLP
5.3%
VANGUARD PORTFOLIO MANAGEMENT LLC
5.2%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| London Stock Exchange Group plc |
13D/G
Refinitiv Parent Limited
|
51%
|
$16,131,843,005
119,921,521 shares
|
$0 | 06 Mar 2025 |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13D/G
13F
T. Rowe Price Associates, Inc. · Company
|
14%
|
$1,698,191,348
15,791,253 shares
|
+$395,551,477 | 31 Dec 2025 |
| BlackRock, Inc. |
13D/G
13F
Company
|
5.5%
|
$867,781,929
6,450,951 shares
|
$0 | 31 Mar 2025 |
| WELLINGTON MANAGEMENT GROUP LLP |
13D/G
13F
Company
|
5.3%
|
$618,296,022
6,204,054 shares
|
-$129,570,059 | 30 Jun 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13D/G
13F
Vanguard Portfolio Management · Company
|
5.2%
|
$605,114,691
6,071,791 shares
|
$0 | 30 Jun 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
13F
Vanguard Capital Management · Company
|
5.2%
|
$712,309,169
6,053,962 shares
|
$0 | 31 Mar 2026 |
| William Hult |
3/4/5
Chief Executive Officer, Director
|
0.12%
|
$15,518,237
144,302 shares
|
-$23,095,774 | 17 Mar 2026 |
| Enrico Bruni |
3/4/5
MD, Co-Head of Global Markets
|
0.09%
|
$11,639,484
108,234 shares
|
-$2,072,913 | 17 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$44,608,633.
Buys
$0
Insiders: 0
Sells
$44,608,633
Insiders: 8
Net
-$44,608,633
Shares: -380,061
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 380,061
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 3,130 | $0 | $331,793 | -$331,793 |
| 3-6 | 0 | 59,275 | $0 | $6,822,879 | -$6,822,879 |
| 6-9 | 0 | 317,656 | $0 | $37,453,961 | -$37,453,961 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 25 reporting-owner rows connected to Tradeweb Markets Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
25
Largest Forms 3/4/5 holder
Lee Olesky
Net 12M change
-$44,608,634
Latest report
14 Aug 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Lee Olesky | Director | $23,874,609 | Mixed | 31 Mar 2023 | ||
| William Hult | Chief Executive Officer, Director | $15,518,237 | -$23,095,774 | -60% | Mixed | 17 Mar 2026 |
| Enrico Bruni | MD, Co-Head of Global Markets | $11,639,484 | -$2,072,913 | -15% | Mixed | 17 Mar 2026 |
| Thomas Pluta | President, Director | $10,296,225 | Mixed | 18 Mar 2024 | ||
| Simon Maisey | Managing Director, Corp. Dev. | $6,164,426 | Mixed | 15 Jun 2022 | ||
| Robert J. Warshaw | Chief Financial Officer | $5,990,687 | Mixed | 21 Jun 2021 | ||
| Troy Dixon | MD, Co-Head of Global Markets | $3,379,389 | -$656,731 | -16% | Filing P/S | 14 Aug 2026 |
| Scott Zucker | Chief Risk Officer | $2,975,730 | Filing P/S | 19 Mar 2025 | ||
| Sara Furber | Chief Financial Officer | $2,779,883 | -$8,082,288 | -74% | Filing P/S | 20 Mar 2026 |
| Amy Clack | Chief Administrative Officer | $2,710,792 | -$226,397 | -7.7% | Filing P/S | 20 Mar 2026 |
| Paula Madoff | Director | $1,981,982 | Mixed | 19 May 2026 | ||
| Scott Ganeles | Director | $1,803,727 | Mixed | 19 May 2026 | ||
| Douglas Friedman | Chief Legal Officer | $1,738,176 | -$3,878,797 | -69% | Filing P/S | 20 Mar 2026 |
| Justin Peterson | Chief Technology Officer | $1,537,140 | -$6,550,998 | -81% | Filing P/S | 01 Jun 2026 |
| Jacques Aigrain | Director | $1,438,040 | Mixed | 19 May 2026 | ||
| Lisa Opoku | Director | $525,822 | Mixed | 19 May 2026 | ||
| Steven Berns | Director | $514,089 | -$44,736 | -8% | Filing P/S | 26 May 2026 |
| Rana Yared | Director | $498,760 | Mixed | 19 May 2026 | ||
| Richard H. Repetto | Director | $373,923 | Mixed | 19 May 2026 | ||
| Hughes von | Director | $239,913 | Mixed | 01 Mar 2022 |
Recent insider transactions for Tradeweb Markets Inc.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Troy Dixon | TW | Class A common stock | Sale | -7.5% | $274,059 | $106.06 | -2,584 | 31,863 | 17 Aug 2026 | Direct |
| Troy Dixon | TW | Class A common stock | Sale | -1.56% | $57,734 | $105.74 | -546 | 34,447 | 14 Aug 2026 | Direct |
| Justin Peterson | TW | Class A common stock | Sale | -58.5% | $2,164,542 | $102.00 | -21,221 | 15,070 | 01 Jun 2026 | Direct |
| Steven Berns | TW | Class A common stock | Sale | -8.01% | $44,736 | $105.26 | -425 | 4,884 | 26 May 2026 | Direct |
| Rana Yared | TW | Class A common stock | Award | 63.4% | 1,645 | 4,239 | 19 May 2026 | Direct | ||
| Jacques Aigrain | TW | Class A common stock | Award | 27.9% | 2,668 | 12,222 | 19 May 2026 | Direct | ||
| Paula Madoff | TW | Class A common stock | Award | 12.8% | 1,912 | 16,845 | 19 May 2026 | Direct | ||
| Steven Berns | TW | Class A common stock | Award | 44.9% | 1,645 | 5,309 | 19 May 2026 | Direct | ||
| Scott Ganeles | TW | Class A common stock | Award | 12% | 1,645 | 15,330 | 19 May 2026 | Direct | ||
| Lisa Opoku | TW | Class A common stock | Award | 58.2% | 1,645 | 4,469 | 19 May 2026 | Direct | ||
| Richard H. Repetto | TW | Class A common stock | Award | 107.3% | 1,645 | 3,178 | 19 May 2026 | Direct | ||
| Justin Peterson | TW | Class A common stock | Sale | -36.9% | $2,560,496 | $120.66 | -21,221 | 36,291 | 15 Apr 2026 | Direct |
| Douglas Friedman | TW | Class A common stock | Sale | -4.08% | $73,917 | $124.86 | -592 | 13,921 | 23 Mar 2026 | Direct |
| Sara Furber | TW | Class A common stock | Sale | -6.76% | $201,524 | $124.86 | -1,614 | 22,264 | 23 Mar 2026 | Direct |
| Troy Dixon | TW | Class A common stock | Sale | -6.88% | $324,938 | $125.75 | -2,584 | 34,993 | 20 Mar 2026 | Direct |
| Douglas Friedman | TW | Class A common stock | Sale | -13.3% | $277,649 | $125.12 | -2,219 | 14,513 | 20 Mar 2026 | Direct |
| Sara Furber | TW | Class A common stock | Sale | -17.1% | $614,523 | $125.13 | -4,911 | 23,878 | 20 Mar 2026 | Direct |
| Justin Peterson | TW | Class A common stock | Sale | -1.72% | $125,761 | $125.13 | -1,005 | 57,512 | 20 Mar 2026 | Direct |
| Amy Clack | TW | Class A common stock | Sale | -1.24% | $34,078 | $125.75 | -271 | 21,557 | 20 Mar 2026 | Direct |
| Justin Peterson | TW | Class A common stock | Sale | -5.2% | $400,716 | $124.76 | -3,212 | 58,517 | 18 Mar 2026 | Direct |
| Justin Peterson | TW | Class A common stock | Award | 3 | 61,729 | 17 Mar 2026 | Direct | |||
| Justin Peterson | TW | Class A common stock | Tax liability | -1.97% | -1,241 | 61,726 | 17 Mar 2026 | Direct | ||
| Amy Clack | TW | Class A common stock | Award | 0.01% | 3 | 21,828 | 17 Mar 2026 | Direct | ||
| Amy Clack | TW | Class A common stock | Tax liability | -4.91% | -1,128 | 21,825 | 17 Mar 2026 | Direct | ||
| Douglas Friedman | TW | Class A common stock | Award | 0.01% | 1 | 16,732 | 17 Mar 2026 | Direct | ||
| Douglas Friedman | TW | Class A common stock | Tax liability | -3.57% | -619 | 16,731 | 17 Mar 2026 | Direct | ||
| Enrico Bruni | TW | Class A common stock | Award | 0.01% | 6 | 108,234 | 17 Mar 2026 | Direct | ||
| Enrico Bruni | TW | Class A common stock | Tax liability | -1.38% | -1,511 | 108,228 | 17 Mar 2026 | Direct | ||
| Sara Furber | TW | Class A common stock | Award | 0.02% | 6 | 28,789 | 17 Mar 2026 | Direct | ||
| Sara Furber | TW | Class A common stock | Tax liability | -5.51% | -1,679 | 28,783 | 17 Mar 2026 | Direct | ||
| William Hult | TW | Class A common stock | Award | 0.01% | 17 | 144,302 | 17 Mar 2026 | Direct | ||
| William Hult | TW | Class A common stock | Tax liability | -3.77% | -5,656 | 144,285 | 17 Mar 2026 | Direct | ||
| Enrico Bruni | TW | Class A common stock | Tax liability | -3.84% | -4,376 | 109,695 | 15 Mar 2026 | Direct | ||
| Enrico Bruni | TW | Class A common stock | Award | 11.5% | 11,796 | 114,071 | 15 Mar 2026 | Direct | ||
| Justin Peterson | TW | Class A common stock | Tax liability | -5.89% | -3,940 | 62,938 | 15 Mar 2026 | Direct | ||
| Justin Peterson | TW | Class A common stock | Award | 13.7% | 8,066 | 66,878 | 15 Mar 2026 | Direct | ||
| Douglas Friedman | TW | Class A common stock | Tax liability | -11.7% | -2,306 | 17,332 | 15 Mar 2026 | Direct | ||
| Douglas Friedman | TW | Class A common stock | Award | 49.8% | 6,528 | 19,638 | 15 Mar 2026 | Direct | ||
| Troy Dixon | TW | Class A common stock | Tax liability | -12.5% | -5,364 | 37,552 | 15 Mar 2026 | Direct | ||
| Troy Dixon | TW | Class A common stock | Award | 33.9% | 10,875 | 42,916 | 15 Mar 2026 | Direct | ||
| Amy Clack | TW | Class A common stock | Award | 38.9% | 6,429 | 22,953 | 15 Mar 2026 | Direct | ||
| Sara Furber | TW | Class A common stock | Tax liability | -14.3% | -5,077 | 30,418 | 15 Mar 2026 | Direct | ||
| Sara Furber | TW | Class A common stock | Award | 51.2% | 12,019 | 35,495 | 15 Mar 2026 | Direct | ||
| William Hult | TW | Class A common stock | Tax liability | -8.77% | -14,408 | 149,837 | 15 Mar 2026 | Direct | ||
| William Hult | TW | Class A common stock | Award | 29.7% | 37,611 | 164,245 | 15 Mar 2026 | Direct | ||
| William Hult | TW | Class A common stock | Sale | -36.4% | $9,101,162 | $125.62 | -72,450 | 126,738 | 03 Mar 2026 | Direct |
| William Hult | TW | Class A common stock | Options Exercise | 57.2% | 72,450 | 199,188 | 03 Mar 2026 | Direct | ||
| William Hult | TW | Stock Option (Right to Buy) | Options Exercise | -100% | -72,450 | 0 | 03 Mar 2026 | Direct | ||
| Enrico Bruni | TW | Class A common stock | Sale | -14.5% | $2,072,913 | $119.27 | -17,380 | 102,319 | 20 Feb 2026 | Direct |
| William Hult | TW | Class A common stock | Sale | -48.9% | $13,994,613 | $115.45 | -121,218 | 126,738 | 10 Feb 2026 | Direct |
* marks a reported price that did not pass the local price check.