SEC Form 4
Wd-40 Co (WDFC) insider trading
In the 12 months to Oct 26, 2026, one WDFC insider reported open-market sales of $117.1K across 2 filings; 6 insiders bought $627.6K.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $117.1K
- 2 filings · 1 insider
- Open-market purchases
- $627.6K
- 7 filings
Who traded WDFC, and when
- Purchase
- Sale
WDFC daily close from Oct 27, 2025 to Oct 26, 2026, between $187.52 and $264.91, last $215.00. 2 sale and 7 purchase filings by 7 insiders, marked at their filing dates. David Pendarvis, Director: bought $207.5K across 2 filings, first filed Oct 30, 2025, last Feb 6, 2026. Daniel T. Carter, Director: bought $199.4K across 1 filing, first filed Oct 27, 2025, last Oct 27, 2025. Patricia Q. Olsem, Division President, Americas: sold $117.1K across 2 filings, first filed Aug 12, 2026, last Aug 14, 2026. Eric Etchart, Director: bought $97.0K across 1 filing, first filed Oct 30, 2025, last Oct 30, 2025. Steven A. Brass, President and CEO: bought $72.6K across 1 filing, first filed Oct 29, 2025, last Oct 29, 2025. Sara Kathleen Hyzer, VP, Finance & CFO: bought $40.1K across 1 filing, first filed Oct 29, 2025, last Oct 29, 2025. Phenix Q. Kiamilev, VP, GC & Chief Compliance Ofcr: bought $11.0K across 1 filing, first filed Oct 29, 2025, last Oct 29, 2025.
Largest mark · tap a row for others
Daniel T. Carter · Director
Purchase $199,370
1,000 shares at $199.37 avg
Filed Oct 27, 2025
Close on filing date $195.38
David Pendarvis · Director
Director
$207.5K boughtDaniel T. Carter · Director
Director
$199.4K boughtPatricia Q. Olsem · Division President, Americas
Division President, Americas
$117.1K soldEric Etchart · Director
Director
$97.0K boughtSteven A. Brass · President and CEO
President and CEO
$72.6K boughtSara Kathleen Hyzer · VP, Finance & CFO
VP, Finance & CFO
$40.1K boughtPhenix Q. Kiamilev · VP, GC & Chief Compliance Ofcr
VP, GC & Chief Compliance Ofcr
$11.0K boughtOpen-market trades
9 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| David Pendarvis | Director | — | $207.5K | 2 | — | |
| Daniel T. Carter | Director | — | $199.4K | 1 | — | |
| Patricia Q. Olsem | Division President, Americas | $117.1K | — | 2 | — | |
| Eric Etchart | Director | — | $97.0K | 1 | — | |
| Steven A. Brass | President and CEO | — | $72.6K | 1 | — | |
| Sara Kathleen Hyzer | VP, Finance & CFO | — | $40.1K | 1 | — | |
| Phenix Q. Kiamilev | VP, GC & Chief Compliance Ofcr | — | $11.0K | 1 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Patricia Q. Olsem Division President, Americas | Sale | 200 | $234.72 | $46.9K | 4,574 | |
traded | Patricia Q. Olsem Division President, Americas | Sale | 300 | $233.73 | $70.1K | 4,774 | |
traded | David Pendarvis Director | Purchase | 424 | $247.15 | $104.8K | 6,898 | |
traded | David Pendarvis Director | Purchase | 523 | $196.37 | $102.7K | 5,862 | |
traded | Eric Etchart Director | Purchase | 500 | $194.02 | $97.0K | 8,370 | |
traded | Sara Kathleen Hyzer VP, Finance & CFO | Purchase | 200 | $200.46 | $40.1K | 5,935 | |
traded | Steven A. Brass President and CEO | Purchase | 362 | $200.46 | $72.6K | 33,761 | |
traded | Phenix Q. Kiamilev VP, GC & Chief Compliance Ofcr | Purchase | 55 | $200.46 | $11.0K | 4,303 | |
traded | Daniel T. Carter Director | Purchase | 1,000 | $199.37 | $199.4K | 7,205 |
GET /stocks/filings/vX/form-4?tickers=WDFC&filing_date.gte=2025-10-26&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"WDFC"
],
"issuer_cik": "0000105132",
"owner_cik": "0001784383",
"accession_number": "0000105132-26-000065",
"form_type": "4",
"filing_date": "2026-08-14",
"period_of_report": "2026-08-13",
"issuer_name": "WD 40 CO",
"issuer_trading_symbol": "WDFC",
"owner_name": "Olsem Patricia Q",
"is_officer": true,
"officer_title": "Division President, Americas",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-08-13",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 200,
"transaction_price_per_share": 234.72,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 4574,
"transaction_value": 46944,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "Amount reported includes: (i) 1,842 unvested restricted stock units or RSUs, (ii) 644 shares of restricted Common Stock received upon settlement of performance stock units or PSUs, and (iii) 89 vested deferred performance units or DPUs, which are Common Stock equivalents."
}
]
},
{
"tickers": [
"WDFC"
],
"issuer_cik": "0000105132",
"owner_cik": "0001784383",
"accession_number": "0000105132-26-000063",
"form_type": "4",
"filing_date": "2026-08-12",
"period_of_report": "2026-08-10",
"issuer_name": "WD 40 CO",
"issuer_trading_symbol": "WDFC",
"owner_name": "Olsem Patricia Q",
"is_officer": true,
"officer_title": "Division President, Americas",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-08-10",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 300,
"transaction_price_per_share": 233.73,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 4774,
"transaction_value": 70119,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "Amount reported includes: (i) 1,842 unvested restricted stock units or RSUs, (ii) 644 shares of restricted Common Stock received upon settlement of performance stock units or PSUs, and (iii) 89 vested deferred performance units or DPUs, which are Common Stock equivalents."
}
]
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 29 records
- Tax withholding12 records
- Grants and awards17 records
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.
Frequently asked questions
Has Wd-40 Co's CEO sold stock?
No. Steven A. Brass (CEO) made no open-market sales filed as CEO in the last 12 months.
How current is WDFC’s insider data?
These are WDFC Form 4 filings from the last year, refreshed daily. The Massive Form 4 API has the full, continuously updated record.
What counts as an open-market buy or sell?
Only purchases and sales at the market price. Option exercises, grants, gifts, and shares withheld for taxes are reported on Form 4 but are left out of the buy and sell totals.
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Track WDFC insider trades with your agent
This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:
Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for WDFC every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.
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