$WDFC

$218.61 +$2.55 (1.18%) Close

$WDFC Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 13.4M shares outstanding

Who owns WDFC?

By type of holder

Institutions 87.7% Insiders 0.9% Everyone else 11.4%

Concentration Top 10 holders own 49.8%

BlackRock, Inc. 15.5% · Vanguard Portfolio Management LLC 8.0%

Institutional ownership

87.7%

-1.5 pts vs last qtr

Institutional holders

387

+4 vs last qtr

Net shares bought

−193.8K

by institutions in Q2 2026

New / sold out

53 / 49

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

American Century Companies Inc +193.9K
Goldman Sachs Group Inc +151.5K

Biggest sellers in Q2 2026

Marshall Wace, LLP −108.4K
Nordea Investment Management AB SOLD OUT −100.9K

Who is planning to sell?

No insider has filed a notice of proposed sale (Form 144) for WD-40 Company in the last 12 months.

Is your stake being diluted?

Diluted share count, FY2017–FY2026

−4.4%

−0.50% a year

Each share's claim on the business

+4.6%

grew without buying or selling a share

Spent on buybacks vs paid in stock

$190M vs $62.3M

over 10 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years81% 3–5 years8% 1–3 years8% Under 1 year4%

Quarterly turnover

9.7%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting WDFC on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
B BlackRock, Inc.	2.1M	15.50%	+55.8K (+2.8%)	≤2021	0.0%
Shares held by quarter Peak holding2.2M (Q1'25) Change over 8 quarters+2.0K Share of the company15.500% BlackRock, Inc.'s full portfolio →
VP Vanguard Portfolio Management LLC	1.1M	8.03%	+37.8K (+3.6%)	≤2021	0.0%
Shares held by quarter Peak holding1.1M (Q2'26) Change over 8 quarters+1.1M Share of the company8.030% Vanguard Portfolio Management LLC's full portfolio →

BlackRock, Inc.

2.1M

% of company

15.50%

Change vs last qtr

+55.8K (+2.8%)

Held since

≤2021

Vanguard Portfolio Management LLC

1.1M

% of company

8.03%

Change vs last qtr

+37.8K (+3.6%)

Held since

≤2021

28 more super investors behind a free account

See every manager holding WD-40 Company, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting WDFC on Form N-PORT; together they hold 47.7% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
IC iShares Core S&P Small-Cap ETF iShares Trust	$198M	810.7K	6.05%	0.18%	June 30, 2026
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$104M	426.1K	3.18%	0.00%	June 30, 2026

iShares Core S&P Small-Cap ETF

iShares Trust

Position value

$198M

% of company

6.05%

% of the fund

0.18%

As of

June 30, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$104M

% of company

3.18%

% of the fund

0.00%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding WD-40 Company and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
BS Brass Steven A Insider	40.5K	0.30%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.300% Brass Steven A's insider activity →
EE Etchart Eric Insider	9.3K	0.07%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.070% Etchart Eric's insider activity →

Brass Steven A

Insider

40.5K

% of company

0.30%

Change vs last qtr

—

Held since

—

Etchart Eric

Insider

9.3K

% of company

0.07%

Change vs last qtr

—

Held since

—

15 more holders behind a free account

See every insider and 5%+ holder of WD-40 Company.

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