WD-40 Company (WDFC)
Nasdaq: WDFC · Miscellaneous Chemical Products · San Diego, CA · filing with the SEC since 1995
Grade7.1
◀ Past 8.1● Present 7.1▶ Future 6.3
Who owns WD-40 Company
As filed with the SECHolders of 5% or more
3
Blackrock, Inc. holds 14.3% of Common Stock, as its SCHEDULE 13G/A filed Oct 17, 2025 says.
Directors and officers
17
report now, of 33 people on the record since 2006. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 3 named at left.
Holders of 5% or moreshare of the class, as filed
Blackrock, Inc.
SCHEDULE 13G/A · filed Oct 17, 2025 · Common Stock
Vanguard Portfolio Management
SCHEDULE 13G · filed Apr 29, 2026 · Common Stock
Vanguard Capital Management
SCHEDULE 13G · filed Apr 30, 2026 · Common Stock
APG Asset Management US Inc.
SCHEDULE 13G/A · filed May 14, 2025 · Common Stock, par value $0.001 · reported falling below 5%, from 7.5% in Feb 13, 2025
The Vanguard Group
SCHEDULE 13G/A · filed Mar 27, 2026 · Common Stock · reported falling below 5%
What WDFC reports owning in othersstakes of 5% or more, and other ties
Other ties the annual report names
Theron Marketing Ltda
A company bought · acquisition · Feb 2024 · owns, named in the 10-K filed Oct 27, 2025
20 subsidiaries in 4 countries, from the list filed with the 10-K filed Oct 26, 2026.
Insider tradesForm 4
2sales
6purchases
0sales on a scheduled plan
1people selling
$100,000sold, in dollars
$400,000bought, in dollars
Open-market trades on Form 4 from Oct 27, 2025 to Oct 27, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Oct 27, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window7 of 33 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Olsem Patricia Q | Division President, Americas | 2 | $100,000 | 0 | 0 | $0 |
| Pendarvis David | director | 0 | $0 | 0 | 2 | $200,000 |
| Brass Steven A | CEO and President | 0 | $0 | 0 | 1 | $100,000 |
| Hyzer Sara Kathleen | VP, Finance & CFO | 0 | $0 | 0 | 1 | $0 |
| Kiamilev Phenix Q. | VP, GC & Chief Compliance Ofcr | 0 | $0 | 0 | 1 | $0 |
| Carter Daniel T | director | 0 | $0 | 0 | 1 | $200,000 |
| Etchart Eric | director | 0 | $0 | 0 | 1 | $100,000 |