Bruderer Ernst W.

Director · COSO

As of 2026-09-17, Bruderer Ernst W. has 7 Form 4 transactions on record across 1 company — 6 in the trailing 12 months.

Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.

Reconstructed holdings

Direct: $1.1MIndirect: $0$1.1Mas of 2026-09-17
  • Direct $1.1M
  • Indirect $0
COSOdirect41,131 sh$1.1M

Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.

Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.

Trades by company

COSO · 7 trades
2026-08-31: Sale, 2,000 sh ($55K)2026-08-26: Sale, 2,000 sh ($55K)2026-08-18: Sale, 1,000 sh ($28K)2026-08-12: Sale, 1,000 sh ($28K)2026-02-11: Award / grant, 868 sh2026-02-11: Award / grant, 868 sh2025-07-02: Purchase, 2,000 sh ($43K)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-08-31COSOSale2,000 @ $27.43$55K−4.6% of holding41,131Form 4
2026-08-26COSOSale2,000 @ $27.50$55K−4.4% of holding43,131Form 4
2026-08-18COSOSale1,000 @ $27.89$28K−2.2% of holding45,131Form 4
2026-08-12COSOSale1,000 @ $27.56$28K−2.1% of holding46,131Form 4
2025-07-02COSOPurchase2,000 @ $21.50$43K+4.4% of holding47,131Form 4
2 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-02-11COSOAward / grant868868Form 4
2026-02-11COSOAward / grant868868Form 4

Source: SEC Form 4 filings. Each row links to its original filing.

Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.