Insiders who reported open-market trades in the last 12 months at the companies Ernst W. Bruderer 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.
Anthony P. Valduga - $118K in COSO purchases and sales in the last 12 months
Michael B. High - $38K in COSO purchases and sales in the last 12 months
James S. Macleod - $9K in COSO purchases and sales in the last 12 months
Stephen R. Stone - $5K in COSO purchases and sales in the last 12 months
More insiders (A-Z)
Browse nearby insider profiles in alphabetical order.
Ernst W. Bruderer is a corporate insider, tracked as Director of CoastalSouth Bancshares, Inc. (COSO). InsiderAlpha holds 7 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 Ernst W. Bruderer submitted recently?
5 primary Form 4 filings in the last 90 days, covering 1 company.
Has Ernst W. Bruderer been buying or selling stock?
Recorded transactions: 1 open-market purchase ($43K) and 5 open-market sales ($333K) across all tracked filings.
Ernst W. Bruderer is Director of CoastalSouth Bancshares, Inc. (COSO). 7 SEC Form 4 filings on record going back to 2025, most recently on 26 October 2026. Most recent open-market trade: sold $167K of COSO on 26 October 2026. Lifetime open-market purchases: $43K. Lifetime open-market sales: $333K.
Recent transactions
6
The latest 6 SEC Form 4 transactions reported by Ernst W. Bruderer.
InsiderAlpha's records for Ernst W. Bruderer go back to 2025: 7 primary Form 4 filings, an average of 3.5 per year. The typical open-market purchase is $43K (1 buy totaling $43K). The largest single buy on record is $43K of COSO in 2025. Sales side: 5 recorded sales totaling $333K, so the filing history runs sell-heavy by dollar value. 1 recorded transaction carries a Rule 10b5-1 plan flag. This identifies the marked transactions as reported under a trading plan; it does not establish the plan status of unmarked transactions.
