Brian Douglas
CEO of Manager · GRAHAM ALTERNATIVE INVESTMENT FUND II LLC
- 2026
- Jul 24, 2026
- 2
Summary
Latest filing:
Brian Douglas has 2 SEC Form 4 filings on record, most recently on 24 July 2026.
Trading pattern
InsiderAlpha's records for Brian Douglas go back to 2026: 2 primary Form 4 filings, an average of 2.0 per year. No recorded transaction carries a Rule 10b5-1 plan flag. An absent flag does not establish whether a transaction was pre-arranged or discretionary.
Most active insiders across the market
Brian Douglas has no co-filers on record, so these are insiders with the largest open-market activity across the market in the last 90 days.
- CASCADE INVESTMENT, L.L.C. - $1.38B in RSG purchases and sales in the last 90 days
- GIC Private Ltd - $1.15B in MDLN purchases and sales in the last 90 days
- James Michael Chu - $1.10B in BIRK purchases and sales in the last 90 days
- Mark A. Stevens - $946.63M in NVDA purchases and sales in the last 90 days
- Angeliki Frangou - $847.74M in NMM purchases and sales in the last 90 days
- Blackstone Holdings II L.P. - $705.06M in JMKE purchases and sales in the last 90 days
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Frequently asked questions
Who is Brian Douglas?
Brian Douglas is a corporate insider, tracked as CEO of Manager. InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
When did Brian Douglas last file a Form 4?
The most recent primary Form 4 on record is dated 24 July 2026, one of 2 filings going back to 2026.
Learn more
No Form 4 transactions on record for Brian Douglas yet.
Filings appear here automatically as they arrive from SEC EDGAR.