DURCAN DERMOT MARK

Director · COR

As of 2026-09-16, DURCAN DERMOT MARK has 5 Form 4 transactions on record across 1 company — 3 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: $10.1MIndirect: $0$10.1Mas of 2026-09-16
  • Direct $10.1M
  • Indirect $0
CORdirect31,767 sh$10.1M

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

COR · 5 trades
2026-06-18: Purchase, 4,000 sh ($1.1M)2026-05-28: Purchase, 4,000 sh ($1.1M)2026-03-05: Award / grant, 905 sh ($325K)2025-03-06: Award / grant, 986 sh2025-03-06: Award / grant, 986 sh

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-06-18CORPurchase4,000 @ $274.19$1.1M+14.4% of holding31,767Form 4
2026-05-28CORPurchase4,000 @ $266.26$1.1M+16.8% of holding27,767Form 4
3 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-03-05CORAward / grant90523,767Form 4
2025-03-06CORAward / grant98622,862Form 4
2025-03-06CORAward / grant98622,862Form 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.