SEC Form 4
Golub Capital BDC, Inc. (GBDC) insider trading
In the 12 months to Oct 26, 2026, 2 GBDC insiders reported open-market sales of $43.8M across 2 filings; no open-market purchases were filed.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $43.8M
- 2 filings · 2 insiders
- Open-market purchases
- $0
- 0 filings
Who traded GBDC, and when
- Sale
GBDC daily close from Oct 27, 2025 to Oct 26, 2026, between $11.97 and $14.37, last $12.12. 2 sale and 0 purchase filings by 2 insiders, marked at their filing dates. David Golub, Chairman & CEO: sold $21.9M across 1 filing, first filed Aug 11, 2026, last Aug 11, 2026. Lawrence E. Golub, Director: sold $21.9M across 1 filing, first filed Aug 11, 2026, last Aug 11, 2026.
Largest mark · tap a row for others
David Golub · Chairman & CEO
Sale $21,893,614
1,676,387 shares at $13.06 avg
Filed Aug 11, 2026 · traded Aug 7
Close on filing date $13.18
David Golub · Chairman & CEO
Chairman & CEO
$21.9M soldLawrence E. Golub · Director
Director
$21.9M soldOpen-market trades
2 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| David Golub | Chairman & CEO | $21.9M | — | 1 | — | |
| Lawrence E. Golub | Director | $21.9M | — | 1 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | David Golub Chairman & CEO | Sale | 1,676,387 | $13.06 | $21.9M | 0 | |
traded | Lawrence E. Golub Director | Sale | 1,676,387 | $13.06 | $21.9M | 0 |
GET /stocks/filings/vX/form-4?tickers=GBDC&filing_date.gte=2025-10-26&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"GBDC"
],
"issuer_cik": "0001476765",
"owner_cik": "0001311018",
"accession_number": "0001476765-26-000069",
"form_type": "4",
"filing_date": "2026-08-11",
"period_of_report": "2026-08-07",
"issuer_name": "GOLUB CAPITAL BDC, Inc.",
"issuer_trading_symbol": "GBDC",
"owner_name": "Golub Lawrence E",
"is_director": true,
"is_officer": false,
"is_ten_percent_owner": false,
"is_other": false,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock, par value $0.001 per share",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-08-07",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 1676387,
"transaction_price_per_share": 13.06,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 0,
"transaction_value": 21893614.220000003,
"not_subject_to_section_16": false,
"direct_or_indirect": "I",
"nature_of_ownership": "By GEMS Fund 4, L.P.",
"footnotes": [
{
"id": "F1",
"description": "Due to his control of GEMS Fund 4, L.P., Mr. Golub may be viewed as having investment power over all of the shares owed by such entity although voting rights have been passed through to the limited partners. Mr. Golub disclaims beneficial ownership of such shares of common stock held by GEMS Fund 4, L.P. except to the extent of his pecuniary interest therein."
}
]
},
{
"tickers": [
"GBDC"
],
"issuer_cik": "0001476765",
"owner_cik": "0001298389",
"accession_number": "0001476765-26-000068",
"form_type": "4",
"filing_date": "2026-08-11",
"period_of_report": "2026-08-07",
"issuer_name": "GOLUB CAPITAL BDC, Inc.",
"issuer_trading_symbol": "GBDC",
"owner_name": "Golub David",
"is_director": true,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "Chairman & CEO",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock, par value $0.001 per share",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-08-07",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 1676387,
"transaction_price_per_share": 13.06,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 0,
"transaction_value": 21893614.220000003,
"not_subject_to_section_16": false,
"direct_or_indirect": "I",
"nature_of_ownership": "By GEMS Fund 4, L.P.",
"footnotes": [
{
"id": "F1",
"description": "Due to his control of GEMS Fund 4, L.P., Mr. Golub may be viewed as having investment power over all of the shares owned by such entity although voting rights were passed through to the limited partners.Mr. Golub disclaims beneficial ownership of such shares of GBDC common stock held by GEMS Fund 4, L.P., except to the extent of his pecuniary interest therein."
}
]
}
]
}
// 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.
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 Golub Capital BDC, Inc.'s CEO sold stock?
Yes. David Golub (CEO) sold 1,676,387 shares ($21.9M) in Aug 2026.
How current is GBDC’s insider data?
These are GBDC 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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