Company · Ownership research

Tradeweb Markets Inc. TW

CIK 0001758730 · CUSIP 892672106

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 892672106 (TW), not CUSIP 892672906 (TW), CUSIP 892672956 (TW), and does not merge CUSIPs.

This page lists the top 20 of 586 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	PRICE T ROWE ASSOCIATES INC /MD/ CIK 80255 · View history	$1.76B 14,940,496 shares	0.20%	-849.70K(-5.40%)Reduced	SEC filing ↗ May 15, 2026	▾
02	WELLINGTON MANAGEMENT GROUP LLP CIK 902219 · View history	$882.94M 7,504,175 shares	0.16%	-1.85M(-19.70%)Reduced	SEC filing ↗ May 15, 2026	▾
03	BlackRock, Inc. CIK 2012383 · View history	$803.48M 6,828,834 shares	0.01%	-14.62K(-0.20%)Reduced	SEC filing ↗ May 13, 2026	▾
04	VANGUARD PORTFOLIO MANAGEMENT LLC CIK 2100121 · Amended · View history	$660.06M 5,609,871 shares	0.03%	—	SEC filing ↗ May 8, 2026	▾
05	VANGUARD CAPITAL MANAGEMENT LLC CIK 2100119 · Amended · View history	$610.75M 5,190,795 shares	0.02%	—	SEC filing ↗ May 15, 2026	▾
06	T. Rowe Price Investment Management, Inc. CIK 1897612 · View history	$399.90M 3,398,763 shares	0.28%	+501.89K(+17.30%)Added	SEC filing ↗ May 15, 2026	▾
07	AQR CAPITAL MANAGEMENT LLC CIK 1167557 · View history	$340.77M 2,896,209 shares	0.16%	+1.04M(+56.10%)Added	SEC filing ↗ May 15, 2026	▾
08	Linonia Partnership LP CIK 1985479 · View history	$328.42M 2,791,246 shares	6.10%	+2.79MNew	SEC filing ↗ May 15, 2026	▾
09	STATE STREET CORP CIK 93751 · View history	$322.95M 2,744,804 shares	0.01%	+40.69K(+1.50%)Added	SEC filing ↗ May 15, 2026	▾
10	Grantham, Mayo, Van Otterloo & Co. LLC CIK 1352662 · View history	$311.88M 2,650,663 shares	0.80%	+131.94K(+5.20%)Added	SEC filing ↗ May 14, 2026	▾
11	CANTILLON CAPITAL MANAGEMENT LLC CIK 1279936 · View history	$278.51M 2,367,041 shares	1.85%	-321.20K(-11.90%)Reduced	SEC filing ↗ May 7, 2026	▾
12	Carmignac Gestion CIK 1569758 · View history	$268.99M 2,286,200 shares	4.13%	+71.80K(+3.20%)Added	SEC filing ↗ Jun 15, 2026	▾
13	Capital World Investors CIK 1422849 · View history	$258.72M 2,198,861 shares	0.04%	+123.28K(+5.90%)Added	SEC filing ↗ May 13, 2026	▾
14	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$248.72M 2,119,930 shares	0.02%	+40.83K(+2.00%)Added	SEC filing ↗ May 15, 2026	▾
15	JPMORGAN CHASE & CO CIK 19617 · Amended · View history	$234.77M 2,008,818 shares	0.02%	+793.62K(+65.30%)Added	SEC filing ↗ May 13, 2026	▾
16	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$231.60M 1,968,423 shares	0.17%	+1.60M(+434.60%)Added	SEC filing ↗ May 15, 2026	▾
17	UBS Group AG CIK 1610520 · View history	$226.93M 1,928,700 shares	0.04%	+983.29K(+104.00%)Added	SEC filing ↗ May 5, 2026	▾
18	MORGAN STANLEY CIK 895421 · View history	$200.48M 1,703,878 shares	0.01%	-9.54K(-0.60%)Reduced	SEC filing ↗ May 15, 2026	▾
19	NORDEA INVESTMENT MANAGEMENT AB CIK 1218210 · View history	$194.39M 1,649,034 shares	0.18%	+27.72K(+1.70%)Added	SEC filing ↗ May 13, 2026	▾
20	BESSEMER GROUP INC CIK 1054074 · View history	$191.39M 1,626,599 shares	0.30%	+54.09K(+3.40%)Added	SEC filing ↗ May 6, 2026	▾

Showing 20 / 586 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

586

Cancelled or null records excluded

Disclosed shares

116,528,626

Not deduplicated across managers

Disclosed value

$13.71B

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

Tradeweb Markets Inc. · Q1 2026

Explore all 586 reporting institutions.

This page includes 20 of 586 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.