Insiders who reported open-market trades in the last 12 months at the companies Earl H. Nemser files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
Lawrence E. Harris - $5.77M in IBKR purchases and sales in the last 12 months
Jill Bright - $26K in IBKR purchases and sales in the last 12 months
Lori A. Conkling - $20K in IBKR purchases and sales in the last 12 months
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Earl H. Nemser is a corporate insider, tracked as Vice Chairman, Director of Interactive Brokers Group, Inc. (IBKR). InsiderAlpha holds 13 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Earl H. Nemser submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Earl H. Nemser been buying or selling stock?
Recorded transactions: 0 open-market purchases and 31 open-market sales ($35.57M) across all tracked filings.
Earl H. Nemser is Vice Chairman, Director of Interactive Brokers Group, Inc. (IBKR). 13 SEC Form 4 filings on record going back to 2025, most recently on 4 August 2026. Most recent open-market trade: sold $1.55M of IBKR on 28 January 2026. Lifetime open-market sales: $35.57M.
Recent transactions
20
The latest 20 SEC Form 4 transactions reported by Earl H. Nemser.
InsiderAlpha's records for Earl H. Nemser go back to 2025: 13 primary Form 4 filings, an average of 6.5 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.
