Doherty Catherine T.

Officer · DGX

As of 2026-09-16, Doherty Catherine T. has 28 Form 4 transactions on record across 1 company — 17 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.

Pattern in the record: open-market sales filed in March in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.

Reconstructed holdings

Direct: $16.6MIndirect: $0$16.6Mas of 2026-09-16
  • Direct $16.6M
  • Indirect $0
DGXdirect67,122 sh$16.6M

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

DGX · 28 trades
2026-03-05: Sale, 5,558 sh ($1.1M)2026-03-04: Award / grant, 11,364 sh ($2.3M)2026-03-04: Withheld for tax, 5,806 sh ($1.2M)2026-03-03: Sale, 632 sh ($131K)2026-03-02: Withheld for tax, 648 sh ($133K)2026-02-19: Sale, 1,433 sh ($294K)2026-02-18: Withheld for tax, 728 sh ($151K)2026-02-18: Withheld for tax, 433 sh ($91K)2026-02-18: Award / grant, 13,514 sh ($0)2026-02-18: Award / grant, 2,928 sh ($0)2026-02-13: Option exercise, 26,165 sh ($2.9M)2026-02-13: Option exercise, 26,165 sh ($2.9M)2026-02-13: Sale, 10,573 sh ($2.2M)2026-02-13: Sale, 10,122 sh ($2.1M)2026-02-13: Sale, 3,500 sh ($725K)2026-02-13: Sale, 1,619 sh ($337K)2026-02-13: Sale, 351 sh ($73K)2025-03-05: Sale, 5,370 sh ($935K)2025-03-04: Award / grant, 10,380 sh ($1.8M)2025-03-04: Withheld for tax, 5,010 sh ($870K)2025-03-04: Sale, 716 sh ($126K)2025-03-03: Withheld for tax, 394 sh ($68K)2025-02-27: Sale, 824 sh ($142K)2025-02-26: Withheld for tax, 455 sh ($78K)2025-02-20: Sale, 899 sh ($154K)2025-02-19: Sale, 535 sh ($91K)2025-02-12: Award / grant, 3,479 sh ($0)2025-02-12: Award / grant, 13,344 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-03-05DGXSale5,558 @ $206.21$1.1M−7.6% of holding67,122Form 4
2026-03-03DGXSale632 @ $207.73$131K−0.9% of holding67,122Form 4
2026-02-19DGXSale1,433 @ $204.83$294K−2.1% of holding68,402Form 4
2026-02-13DGXSale10,573 @ $205.21$2.2M−11.2% of holding83,660Form 4
2026-02-13DGXSale10,122 @ $206.37$2.1M−12.1% of holding73,538Form 4
2026-02-13DGXSale3,500 @ $207.08$725K−4.8% of holding70,038Form 4
2026-02-13DGXSale1,619 @ $208.21$337K−2.3% of holding68,419Form 4
2026-02-13DGXSale351 @ $209.10$73K−0.5% of holding68,068Form 4
2025-03-05DGXSale5,370 @ $174.13$935K−7.3% of holding68,068Form 4
2025-03-04DGXSale716 @ $175.79$126K−1.0% of holding68,068Form 4
2025-02-27DGXSale824 @ $172.61$142K−1.2% of holding69,178Form 4
2025-02-20DGXSale899 @ $170.99$154K−1.3% of holding70,457Form 4
2025-02-19DGXSale535 @ $169.71$91K−0.7% of holding71,356Form 4
15 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-03-04DGXAward / grant11,36478,486Form 4
2026-03-04DGXWithheld for tax5,80672,680Form 4
2026-03-02DGXWithheld for tax64867,754Form 4
2026-02-18DGXWithheld for tax72869,835Form 4
2026-02-18DGXWithheld for tax43370,563Form 4
2026-02-18DGXAward / grant13,51413,514Form 4
2026-02-18DGXAward / grant2,92870,996Form 4
2026-02-13DGXOption exercise26,1650Form 4
2026-02-13DGXOption exercise26,16594,233Form 4
2025-03-04DGXAward / grant10,38078,448Form 4
2025-03-04DGXWithheld for tax5,01073,438Form 4
2025-03-03DGXWithheld for tax39468,784Form 4
2025-02-26DGXWithheld for tax45570,002Form 4
2025-02-12DGXAward / grant3,47971,891Form 4
2025-02-12DGXAward / grant13,34413,344Form 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.