Insiders who reported open-market trades in the last 12 months at the companies Douglas A. Treco 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.
Samarth Kulkarni - $9.60M in CRSP purchases and sales in the last 12 months
Raju Prasad - $5.10M in CRSP purchases and sales in the last 12 months
James R. Kasinger - $1.37M in CRSP purchases and sales in the last 12 months
Simeon George - $720K in CRSP purchases and sales in the last 12 months
Naimish Patel - $412K in CRSP purchases and sales in the last 12 months
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Douglas A. Treco is a corporate insider of CRISPR Therapeutics AG (CRSP). InsiderAlpha holds 4 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Douglas A. Treco last file a Form 4?
The most recent primary Form 4 on record is dated 9 June 2026, one of 4 filings going back to 2024.
Has Douglas A. Treco been buying or selling stock?
Recorded transactions: 1 open-market purchase ($1.14M) and 0 open-market sales across all tracked filings.
Douglas A. Treco files SEC Form 4 reports at CRISPR Therapeutics AG (CRSP). 4 SEC Form 4 filings on record going back to 2024, most recently on 9 June 2026. Most recent open-market trade: bought $1.14M of CRSP on 8 August 2025. Lifetime open-market purchases: $1.14M.
Recent transactions
3
The latest 3 SEC Form 4 transactions reported by Douglas A. Treco.
InsiderAlpha's records for Douglas A. Treco go back to 2024: 4 primary Form 4 filings, an average of 1.3 per year. The typical open-market purchase is $1.14M (1 buy totaling $1.14M). The largest single buy on record is $1.14M of CRSP in 2025. No recorded transaction carries a Rule 10b5-1 plan flag. An absent flag does not establish whether a transaction was pre-arranged or discretionary.
