Deren John

Officer · TFX

As of 2026-09-16, Deren John has 10 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: $2.3MIndirect: $0$2.3Mas of 2026-09-16
  • Direct $2.3M
  • Indirect $0
TFXdirect18,073 sh$2.3M

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

TFX · 10 trades
2026-03-04: Withheld for tax, 229 sh ($27K)2026-03-03: Award / grant, 4,604 sh ($0)2026-03-03: Award / grant, 30,362 sh ($0)2026-03-03: Award / grant, 9,180 sh ($0)2026-02-28: Withheld for tax, 231 sh ($28K)2026-02-23: Award / grant, 161 sh ($0)2025-03-04: Award / grant, 2,676 sh ($0)2025-03-04: Award / grant, 18,896 sh ($0)2025-03-01: Withheld for tax, 157 sh ($21K)2025-02-24: Award / grant, 92 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
10 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-03-04TFXWithheld for tax22918,073Form 4
2026-03-03TFXAward / grant4,6049,122Form 4
2026-03-03TFXAward / grant30,36230,362Form 4
2026-03-03TFXAward / grant9,18018,302Form 4
2026-02-28TFXWithheld for tax2314,518Form 4
2026-02-23TFXAward / grant1614,749Form 4
2025-03-04TFXAward / grant2,6764,588Form 4
2025-03-04TFXAward / grant18,89618,896Form 4
2025-03-01TFXWithheld for tax1571,912Form 4
2025-02-24TFXAward / grant922,069Form 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.