Insiders who reported open-market trades in the last 12 months at the companies Mark Andrew Warner 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.
Alfred P. West Jr. - $15.51M in SEIC purchases and sales in the last 12 months
Ryan Hicke - $11.14M in SEIC purchases and sales in the last 12 months
Michael Peterson - $9.74M in SEIC purchases and sales in the last 12 months
Philip McCabe - $4.53M in SEIC purchases and sales in the last 12 months
Sanjay Sharma - $4.24M in SEIC purchases and sales in the last 12 months
Kathryn McCarthy - $1.95M in SEIC purchases and sales in the last 12 months
More insiders (A-Z)
Browse nearby insider profiles in alphabetical order.
Mark Andrew Warner is a corporate insider, tracked as See Remarks* of SEI INVESTMENTS CO (SEIC). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Mark Andrew Warner last file a Form 4?
The most recent primary Form 4 on record is dated 30 July 2026, one of 3 filings going back to 2025.
Has Mark Andrew Warner been buying or selling stock?
Recorded transactions: 0 open-market purchases and 5 open-market sales ($2.31M) across all tracked filings.
Mark Andrew Warner is See Remarks* of SEI INVESTMENTS CO (SEIC). 3 SEC Form 4 filings on record going back to 2025, most recently on 30 July 2026. Most recent open-market trade: sold $762K of SEIC on 30 July 2026. Lifetime open-market sales: $2.31M.
Recent transactions
12
The latest 12 SEC Form 4 transactions reported by Mark Andrew Warner.
InsiderAlpha's records for Mark Andrew Warner go back to 2025: 3 primary Form 4 filings, an average of 1.5 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.
