Company · Ownership research

WD 40 CO WDFC

CIK 0000105132

Form 4 transactions dated Nov 1, 2023 to Nov 7, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

Insider filings on file run through Oct 27, 2026.

Insider purchases & sales

Purchased: $961.09K
Sold: $612.35K

Nov 1, 2023 – Oct 27, 2026
Available records · partial months are marked ·

20257 of 7 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
Oct 30, 2025	Etchart Eric Director	Purchase	$97.01K 500 shares bought	6.35% added Direct holding	▾
Oct 30, 2025	PENDARVIS DAVID Director	Purchase	$102.70K 523 shares bought	9.80% added Direct holding	▾
Oct 28, 2025	KIAMILEV PHENIX Q. VP, GC & Chief Compliance Ofcr	Purchase	$11.03K 55 shares bought	1.29% added Trust holding	▾
Oct 28, 2025	Brass Steven A President and CEO · Director	Purchase	$72.57K 362 shares bought	1.08% added Direct holding	▾
Oct 28, 2025	HYZER SARA KATHLEEN VP, Finance & CFO	Purchase	$40.09K 200 shares bought	3.49% added Direct holding	▾
Oct 27, 2025	CARTER DANIEL T Director	Purchase	$199.37K 1,000 shares bought	16.12% added Direct holding	▾
Apr 11, 2025	HYZER SARA KATHLEEN VP, Finance & CFO	Purchase	$57.04K 256 shares bought	6.71% added Direct holding	▾

Showing 7 / 7 record groups in 2025. The complete set is available through the API.

WD 40 CO · WDFC

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The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. For the year shown, this page lists 7 of 7 purchase / sale groups and 20 of 20 other groups; the totals and the monthly series cover the whole window.

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{"action":"list","ticker":"WDFC","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

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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.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Share totals are on today's split-adjusted basis. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.