SEC Form 4
Enpro Inc. (NPO) insider trading
In the 12 months to Oct 23, 2026, 5 NPO insiders reported open-market sales of $3.2M across 5 filings; no open-market purchases were filed.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $3.2M
- 5 filings · 5 insiders
- Open-market purchases
- $0
- 0 filings
Who traded NPO, and when
- Sale
NPO daily close from Oct 23, 2025 to Oct 23, 2026, between $202.55 and $387.65, last $266.11. 5 sale and 0 purchase filings by 5 insiders, marked at their filing dates. Felix M. Brueck, Director: sold $1.6M across 1 filing, first filed Feb 25, 2026, last Feb 25, 2026. Robert Savage McLean, EVP, GC, and CAO: sold $555.0K across 1 filing, first filed Feb 24, 2026, last Feb 24, 2026. Eric A. Vaillancourt, President and CEO: sold $515.7K across 1 filing, first filed Nov 7, 2025, last Nov 7, 2025. John Humphrey, Director: sold $349.3K across 1 filing, first filed Feb 25, 2026, last Feb 25, 2026. Steven R. Bower, SVP, Controller and CAO: sold $134.4K across 1 filing, first filed Mar 2, 2026, last Mar 2, 2026.
Largest mark · tap a row for others
Felix M. Brueck · Director
Sale $1,614,469
5,853 shares at $275.84 avg
Filed Feb 25, 2026 · traded Feb 23
Close on filing date $266.75
Felix M. Brueck · Director
Director
$1.6M soldRobert Savage McLean · EVP, GC, and CAO
EVP, GC, and CAO
$555.0K soldEric A. Vaillancourt · President and CEO
President and CEO
$515.7K soldJohn Humphrey · Director
Director
$349.3K soldSteven R. Bower · SVP, Controller and CAO
SVP, Controller and CAO
$134.4K soldHas Enpro Inc.'s CEO sold stock?
Yes. Eric A. Vaillancourt (CEO) sold 2,272 shares ($515.7K) in Nov 2025.
Open-market trades
5 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Felix M. Brueck | Director | $1.6M | — | 1 | — | |
| Robert Savage McLean | EVP, GC, and CAO | $555.0K | — | 1 | — | |
| Eric A. Vaillancourt | President and CEO | $515.7K | — | 1 | — | |
| John Humphrey | Director | $349.3K | — | 1 | — | |
| Steven R. Bower | SVP, Controller and CAO | $134.4K | — | 1 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Steven R. Bower SVP, Controller and CAO | Sale | 507 | $265.15 | $134.4K | 4,695 | |
traded | Felix M. Brueck Director | Sale | 5,853 | $275.84 | $1.6M | 6,389 | |
traded | John Humphrey Director | Sale | 1,300 | $268.69 | $349.3K | 3,200 | |
traded | Robert Savage McLean EVP, GC, and CAO | Sale | 2,000 | $277.50 | $555.0K | 29,909 | |
traded | Eric A. Vaillancourt President and CEO | Sale | 2,272 | $227.00 | $515.7K | 38,047 |
GET /stocks/filings/vX/form-4?tickers=NPO&filing_date.gte=2025-10-23&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"NPO"
],
"issuer_cik": "0001164863",
"owner_cik": "0001623812",
"accession_number": "0001225208-26-002877",
"form_type": "4",
"filing_date": "2026-03-02",
"period_of_report": "2026-03-02",
"issuer_name": "Enpro Inc.",
"issuer_trading_symbol": "NPO",
"owner_name": "Bower Steven R.",
"is_officer": true,
"officer_title": "SVP, Controller and CAO",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-03-02",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 507,
"transaction_price_per_share": 265.148,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 4695,
"transaction_value": 134430.03600000002,
"direct_or_indirect": "D"
},
{
"tickers": [
"NPO"
],
"issuer_cik": "0001164863",
"owner_cik": "0001599335",
"accession_number": "0001225208-26-002602",
"form_type": "4",
"filing_date": "2026-02-25",
"period_of_report": "2026-02-23",
"issuer_name": "Enpro Inc.",
"issuer_trading_symbol": "NPO",
"owner_name": "Brueck Felix M.",
"is_director": true,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-02-23",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 4822,
"transaction_price_per_share": 275.69,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 1567,
"transaction_value": 1329377.18,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F3",
"description": "The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $275.31 to $276.20, inclusive. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnote (3) to this Form 4."
},
{
"id": "F2",
"description": "The reported disposition relates solely to shares of the issuer's common stock held directly by the reporting person. Following the reported transactions, the reporting person continues to beneficially own 22,004 phantom share units, which are derivative securities and were not sold or otherwise disposed of in the transactions reported herein."
}
]
}
]
}
// 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) · 44 records
- Option exercises16 records
- Tax withholding15 records
- Grants and awards12 records
- Gifts1 record
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
Build this yourself
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 NPO 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.
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.