SEC Form 4
Bentley Systems, Incorporated (BSY) insider trading
In the 12 months to Oct 24, 2026, 2 BSY insiders reported open-market sales of $28.1K across 2 filings; no open-market purchases were filed.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $28.1K
- 2 filings · 2 insiders
- Open-market purchases
- $0
- 0 filings
- Pre-arranged sales (10b5-1)
- 1 of 2
- $4.0K of $28.1K sold (14%)
Who traded BSY, and when
- Sale
- Sale, pre-arranged (10b5-1)
BSY daily close from Oct 24, 2025 to Oct 23, 2026, between $28.42 and $52.20, last $39.70. 2 sale and 0 purchase filings by 2 insiders, marked at their filing dates. Thomas F. Trimback, Chief Accounting Officer: sold $24.1K across 1 filing, first filed Nov 19, 2025, last Nov 19, 2025. Gregory S. Bentley, Executive Chair & President: sold $4.0K across 1 filing, first filed Mar 12, 2026, last Mar 12, 2026.
Largest mark · tap a row for others
Thomas F. Trimback · Chief Accounting Officer
Sale $24,091
560 shares at $43.02 avg
Filed Nov 19, 2025 · traded Nov 17
Close on filing date $40.52
Thomas F. Trimback · Chief Accounting Officer
Chief Accounting Officer
$24.1K soldGregory S. Bentley · Executive Chair & President
Executive Chair & President
$4.0K soldHas Bentley Systems, Incorporated's CEO sold stock?
No. Nicholas Cumins (CEO) made no open-market sales filed as CEO in the last 12 months.
Open-market trades
2 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Thomas F. Trimback | Chief Accounting Officer | $24.1K | — | 1 | — | |
| Gregory S. Bentley | Executive Chair & President | $4.0K | — | 1 | 100% of sales |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Gregory S. Bentley Executive Chair & President | SalePre-arranged (10b5-1) | 100 | $40.01 | $4.0K | 7,614,841 | |
traded | Thomas F. Trimback Chief Accounting Officer | Sale | 560 | $43.02 | $24.1K | 13,806 |
GET /stocks/filings/vX/form-4?tickers=BSY&filing_date.gte=2025-10-24&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"BSY"
],
"issuer_cik": "0001031308",
"owner_cik": "0001214661",
"accession_number": "0001104659-26-027073",
"form_type": "4",
"filing_date": "2026-03-12",
"period_of_report": "2026-03-10",
"issuer_name": "BENTLEY SYSTEMS INC",
"issuer_trading_symbol": "BSY",
"owner_name": "BENTLEY GREGORY S",
"is_director": true,
"is_officer": true,
"is_ten_percent_owner": true,
"is_other": false,
"officer_title": "Executive Chair & President",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Class B Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-03-10",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 100,
"transaction_price_per_share": 40.01,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 7614841,
"transaction_value": 4001,
"not_subject_to_section_16": false,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "The sales reported in this Form 4 were of shares distributed from the Issuer's Non-Qualified Deferred Compensation Plan in January 2026 and were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 10, 2024."
}
]
},
{
"tickers": [
"BSY"
],
"issuer_cik": "0001031308",
"owner_cik": "0002015992",
"accession_number": "0001104659-25-114103",
"form_type": "4",
"filing_date": "2025-11-19",
"period_of_report": "2025-11-17",
"issuer_name": "BENTLEY SYSTEMS INC",
"issuer_trading_symbol": "BSY",
"owner_name": "Trimback Thomas F",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "Chief Accounting Officer",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Class B Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2025-11-17",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 560,
"transaction_price_per_share": 43.02,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 13806,
"transaction_value": 24091.2,
"not_subject_to_section_16": false,
"direct_or_indirect": "D"
}
]
}
// 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) · 122 records
- Tax withholding43 records
- Grants and awards71 records
- Gifts8 records
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 BSY 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.
- 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.