Company · Ownership research

WD 40 CO WDFC

CIK 0000105132 · CUSIP 929236107

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 929236107 (WDFC), not CUSIP 929236957 (WDFC), CUSIP 929236907 (WDFC), and does not merge CUSIPs.

This page lists the top 20 of 383 rows by value; the complete set is available through the API.

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	BlackRock, Inc. CIK 2012383 · View history	$396.98M 2,016,144 shares	0.01%	+30.57K(+1.50%)Added	SEC filing ↗ Feb 12, 2026	▾
02	VANGUARD GROUP INC CIK 102909 · View history	$325.01M 1,650,622 shares	0.00%	+47.53K(+3.00%)Added	SEC filing ↗ Jan 29, 2026	▾
03	ALLIANCEBERNSTEIN L.P. CIK 1109448 · View history	$104.15M 528,959 shares	0.03%	-4.78K(-0.90%)Reduced	SEC filing ↗ Feb 17, 2026	▾
04	KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC CIK 1021223 · View history	$103.87M 527,526 shares	0.28%	-25.72K(-4.60%)Reduced	SEC filing ↗ Feb 13, 2026	▾
05	STATE STREET CORP CIK 93751 · View history	$102.34M 519,775 shares	0.00%	-238(0.00%)Reduced	SEC filing ↗ Feb 13, 2026	▾
06	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$79.78M 405,117 shares	0.00%	+2.07K(+0.50%)Added	SEC filing ↗ Feb 9, 2026	▾
07	Conestoga Capital Advisors, LLC CIK 1163744 · View history	$58.45M 296,847 shares	0.98%	-13.76K(-4.40%)Reduced	SEC filing ↗ Feb 2, 2026	▾
08	FIRST TRUST ADVISORS LP CIK 1125816 · View history	$57.09M 289,954 shares	0.04%	+111.56K(+62.50%)Added	SEC filing ↗ Feb 13, 2026	▾
09	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$56.39M 286,391 shares	0.01%	+2.30K(+0.80%)Added	SEC filing ↗ Feb 12, 2026	▾
10	RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history	$49.67M 252,268 shares	0.08%	-33.29K(-11.70%)Reduced	SEC filing ↗ Feb 12, 2026	▾
11	AMERIPRISE FINANCIAL INC CIK 820027 · View history	$49.54M 251,679 shares	0.01%	-52.55K(-17.30%)Reduced	SEC filing ↗ Feb 17, 2026	▾
12	GENEVA CAPITAL MANAGEMENT LLC CIK 1009232 · View history	$46.84M 237,904 shares	0.88%	-26.23K(-9.90%)Reduced	SEC filing ↗ Feb 12, 2026	▾
13	GCQ FUNDS MANAGEMENT PTY Ltd CIK 2031554 · View history	$43.56M 221,225 shares	6.00%	+104.28K(+89.20%)Added	SEC filing ↗ Feb 4, 2026	▾
14	MORGAN STANLEY CIK 895421 · Amended · View history	$37.90M 192,489 shares	0.00%	+14.53K(+8.20%)Added	SEC filing ↗ May 27, 2026	▾
15	ROYCE & ASSOCIATES LP CIK 906304 · View history	$32.53M 165,187 shares	0.33%	+145.52K(+739.80%)Added	SEC filing ↗ Feb 9, 2026	▾
16	Balyasny Asset Management L.P. CIK 1218710 · View history	$29.29M 148,759 shares	0.05%	+148.76KNew	SEC filing ↗ Feb 17, 2026	▾
17	CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history	$29.00M 147,279 shares	0.00%	+186(+0.10%)Added	SEC filing ↗ Feb 13, 2026	▾
18	NORTHERN TRUST CORP CIK 73124 · View history	$28.18M 143,124 shares	0.00%	-6.41K(-4.30%)Reduced	SEC filing ↗ Feb 17, 2026	▾
19	Invesco Ltd. CIK 914208 · Amended · View history	$27.61M 140,216 shares	0.00%	-3.85K(-2.70%)Reduced	SEC filing ↗ Feb 19, 2026	▾
20	TWO SIGMA INVESTMENTS, LP CIK 1179392 · View history	$25.45M 129,261 shares	0.04%	-1.51K(-1.20%)Reduced	SEC filing ↗ Feb 17, 2026	▾

Showing 20 / 383 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

383

Cancelled or null records excluded

Disclosed shares

11,580,414

Not deduplicated across managers

Disclosed value

$2.28B

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.

WD 40 CO · Q4 2025

Explore all 383 reporting institutions.

This page includes 20 of 383 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.