GDO · Insider Trading

Western Asset Global Corporate Opportunity Fund Inc.

Every open-market purchase and sale reported by GDO officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.

Form 4 Filings
10
most recent
Open-Market Buys
9
code P
Sales
1
code S
Reporting Insiders
1
current holders
GDO — Recent Form 4 Transactions (latest 2025-05-28)
FiledInsiderRole TypeSharesValue
2025-05-28 Anthony Grillo Director Buy +1,000 +$11.36K
2020-12-28 Eileen A Kamerick Director Buy +400 +$7.16K
2016-06-07 Carol L Colman Director Buy +800 +$13.81K
2014-01-07 Kenneth Fuller CEO, Pres. & Chairman Buy +800 +$14.65K
2013-04-08 Stephen A Walsh — Buy +524 +$10.38K
2013-01-30 Daniel P Cronin Director Sell −2,500 −$51.46K
2010-10-05 Daniel P Cronin Director Buy +2,500 +$47.60K
2010-08-27 Stephen A Walsh — Buy +400 +$7.51K
2010-08-26 Stephen A Walsh — Buy +1,000 +$18.85K
2010-01-25 Daniel P Cronin Director Buy +1,000 +$19.52K
GDO — Current Insider Holders
InsiderRole Shares HeldValue
Anthony Grillo Director 1,000 $9.57K
GDO Insider Trading FAQ
Who are the insiders at GDO?
1 officers, directors and 10%+ beneficial owners currently report holdings in GDO via SEC Form 4.
Are GDO insiders buying or selling?
Across the 10 most recent Form 4 filings for GDO, 9 were open-market purchases (code P) and 1 were sales (code S). Sales frequently reflect scheduled 10b5-1 plans or tax withholding rather than a view on the stock.
How current is GDO insider data?
Form 4 must be filed within two business days of the transaction, so this is close to real time. The most recent GDO filing is dated 2025-05-28.
How to read Form 4 activity

Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.

Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.

Full filing history and per-insider positions are on the GDO quote page; the site-wide leaderboard is on the insider transactions hub.

Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.