SEC Form 4
Unifirst Corp (UNF) insider trading
In the 12 months to Nov 4, 2026, 2 UNF insiders reported open-market sales of $576.3K across 3 filings; no open-market purchases were filed.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $576.3K
- 3 filings · 2 insiders
- Open-market purchases
- $0
- 0 filings
- Pre-arranged sales (10b5-1)
- 3 of 3
- All $576.3K sold was pre-arranged
Who traded UNF, and when
- Sale
- Sale, pre-arranged (10b5-1)
UNF daily close from Nov 4, 2025 to Nov 4, 2026, between $150.02 and $301.19, last $250.94. 3 sale and 0 purchase filings by 2 insiders, marked at their filing dates. David Martin Katz, Executive VP, Sales/Marketing: sold $349.2K across 2 filings, first filed Nov 5, 2025, last Feb 18, 2026. William Masters Ross, Executive Vice President: sold $227.2K across 1 filing, first filed Feb 10, 2026, last Feb 10, 2026.
Largest mark · tap a row for others
David Martin Katz · Executive VP, Sales/Marketing
Sale $347,759
1,464 shares at $237.54 avg
Filed Feb 18, 2026 · traded Feb 17
Pre-arranged (10b5-1) · close on filing date $241.25
David Martin Katz · Executive VP, Sales/Marketing
Executive VP, Sales/Marketing
$349.2K soldWilliam Masters Ross · Executive Vice President
Executive Vice President
$227.2K soldOpen-market trades
3 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| David Martin Katz | Executive VP, Sales/Marketing | $349.2K | — | 2 | 100% of sales | |
| William Masters Ross | Executive Vice President | $227.2K | — | 1 | 100% of sales |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | David Martin Katz Executive VP, Sales/Marketing | SalePre-arranged (10b5-1) | 1,464 | $237.54 | $347.8K | 6,461 | |
traded | William Masters Ross Executive Vice President | SalePre-arranged (10b5-1) | 1,128 | $201.38 | $227.2K | 3,849 | |
traded | David Martin Katz Executive VP, Sales/Marketing | SalePre-arranged (10b5-1) | 9 | $155.26 | $1.4K | 6,059 |
GET /stocks/filings/vX/form-4?tickers=UNF&filing_date.gte=2025-11-04&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"UNF"
],
"issuer_cik": "0000717954",
"owner_cik": "0001459610",
"accession_number": "0001193125-26-056419",
"form_type": "4",
"filing_date": "2026-02-18",
"period_of_report": "2026-02-17",
"issuer_name": "UNIFIRST CORP",
"issuer_trading_symbol": "UNF",
"owner_name": "Katz David Martin",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "Executive VP, Sales/Marketing",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-02-17",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 1464,
"transaction_price_per_share": 237.54,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 6461,
"transaction_value": 347758.56,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "Represents shares sold pursuant to a trading plan intended to comply with Rule 10b5-1(c) and adopted on November 14, 2025."
},
{
"id": "F2",
"description": "Consists of 299 restricted stock units that vest in one remaining annual installment on October 31, 2026, 709 restricted stock units that vest in two remaining equal annual installments on October 31, 2026 and October 31, 2027, 1,232 restricted stock units that vest in three equal annual installments on October 31, 2026, October 31, 2027 and October 31, 2028, 1,125 restricted stock units that vest in two equal annual installments on October 31, 2026 and October 31, 2027, 1,866 restricted stock units that vest in three equal annual installments on October 31, 2026, October 31, 2027 and October 31, 2028 and 1,230 shares of Common Stock owned by the reporting person."
}
]
},
{
"tickers": [
"UNF"
],
"issuer_cik": "0000717954",
"owner_cik": "0001688445",
"accession_number": "0001193125-26-044463",
"form_type": "4",
"filing_date": "2026-02-10",
"period_of_report": "2026-02-09",
"issuer_name": "UNIFIRST CORP",
"issuer_trading_symbol": "UNF",
"owner_name": "Ross William Masters",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "Executive Vice President",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-02-09",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 1128,
"transaction_price_per_share": 201.38,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 3849,
"transaction_value": 227156.63999999998,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "Represents shares sold pursuant to a trading plan intended to comply with Rule 10b5-1(c) and adopted on November 10, 2025."
},
{
"id": "F2",
"description": "Consists of 224 restricted stock units that vest in one remaining annual installment on October 31, 2026, 552 restricted stock units that vest in two remaining equal annual installments on October 31, 2026 and October 31, 2027, 959 restricted stock units that vest in three equal annual installments on October 31, 2026, October 31, 2027 and October 31, 2028, 822 restricted stock units that vest in two remaining equal annual installments on October 31, 2026 and October 31, 2027, and 1,292 restricted stock units that vest in three remaining equal annual installments on October 31, 2026, October 31, 2027, and October 31, 2028."
}
]
}
]
}
// 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) · 54 records
- Option exercises3 records
- Tax withholding23 records
- Grants and awards22 records
- Gifts6 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.
- Pre-arranged (10b5-1)
- The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
- 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 Unifirst Corp's CEO sold stock?
No. Steven S. Sintros (CEO) made no open-market sales filed as CEO in the last 12 months.
How current is UNF’s insider data?
These are UNF 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.
Build with AI
Track UNF 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 UNF 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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