Form 4 for WDFC WD 40 CO

Accepted 2025-10-10 00:00:00 ET · period of report 2025-10-09 · accession 0000105132-25-000052 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X	Filed	Traded	Ticker	Insider	Title	Type	Price	Qty	Owned	ΔOwn	Value
M	2025-10-10	2025-10-09	WDFC	Olsem Patricia Q	Division Pres, Americas	A - Grant	—	+2,131	2,330	+1,071%	—

Purchase Sale Sale after option exercise All abbreviations

#	Table	Security	Date	Code	A/D	Shares	Price	Owned after	Own	Exercise / expiry	Underlying	Footnotes
1	Common	Common Stock	2025-10-09	A	A	1,120	—	3,450	D	—	—	(F2) Represents the vesting of market share units (MSUs) upon certification of market performance achieved. The 3-year performance cliff vesting MSUs were granted on October 10, 2022 under the WD-40 Company 2016 Stock Incentive Plan and will be settled with Issuer's Common Stock on the date provided for in the MSU award agreement. (F4) As of the filing date, the amount reported includes: (i) 1,011 unvested RSUs (the grant of RSUs reported in this Form 4), (ii) 1,120 shares of Common Stock to be issued upon settlement of MSUs, (iii) 644 shares of restricted Common Stock received upon settlement of performance stock units or PSUs, and (iv) 89 vested deferred performance units or DPUs, which are Common Stock equivalents.
2	Common	Common Stock	2025-10-09	A	A	1,011	—	2,330	D	—	—	(F1) Represents a grant of restricted stock units (RSUs) under the WD-40 Company 2016 Stock Incentive Plan, as amended and restated effective December 12, 2023. Except as otherwise provided in the RSU award agreement, the RSUs vest annually over 3 years.