Porter Elizabeth A

Officer · LDOS

As of 2026-09-16, Porter Elizabeth A has 29 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.

Reconstructed holdings

Direct: $5.7MIndirect: $0$5.7Mas of 2026-09-16
  • Direct $5.7M
  • Indirect $0
LDOSdirect44,384 sh$5.7M

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

LDOS · 29 trades
2026-08-04: Withheld for tax, 5,092 sh ($605K)2026-04-07: Sale, 1,915 sh ($304K)2026-04-07: Sale, 85 sh ($14K)2026-03-08: Withheld for tax, 588 sh ($105K)2026-03-07: Withheld for tax, 593 sh ($105K)2026-03-06: Award / grant, 4,626 sh ($0)2026-03-04: Withheld for tax, 376 sh ($68K)2026-03-03: Withheld for tax, 651 sh ($117K)2026-02-23: Withheld for tax, 2,205 sh ($383K)2026-02-23: Option exercise, 3,240 sh ($202K)2026-02-23: Option exercise, 3,240 sh ($0)2026-02-12: Withheld for tax, 4,250 sh ($735K)2026-02-12: Award / grant, 10,146 sh ($0)2026-02-12: Award / grant, 3,552 sh ($0)2026-01-20: Sale, 3,000 sh ($577K)2025-12-19: Sale, 2,303 sh ($417K)2025-12-19: Sale, 697 sh ($127K)2025-03-08: Withheld for tax, 606 sh ($84K)2025-03-07: Award / grant, 9,149 sh ($0)2025-03-07: Award / grant, 3,758 sh ($0)2025-03-05: Withheld for tax, 410 sh ($54K)2025-03-04: Withheld for tax, 370 sh ($48K)2025-03-03: Withheld for tax, 646 sh ($84K)2025-02-18: Withheld for tax, 1,723 sh ($228K)2025-02-18: Option exercise, 2,524 sh ($161K)2025-02-18: Option exercise, 2,524 sh ($0)2025-02-06: Withheld for tax, 2,184 sh ($309K)2025-02-06: Award / grant, 6,064 sh ($0)2025-02-06: Award / grant, 3,554 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-04-07LDOSSale1,915 @ $158.75$304K−3.7% of holding49,561Form 4
2026-04-07LDOSSale85 @ $159.32$14K−0.2% of holding49,476Form 4
2026-01-20LDOSSale3,000 @ $192.21$577K−7.2% of holding38,575Form 4
2025-12-19LDOSSale2,303 @ $180.89$417K−5.2% of holding42,272Form 4
2025-12-19LDOSSale697 @ $181.55$127K−1.6% of holding41,575Form 4
24 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-08-04LDOSWithheld for tax5,09244,384Form 4
2026-03-08LDOSWithheld for tax58851,476Form 4
2026-03-07LDOSWithheld for tax59352,064Form 4
2026-03-06LDOSAward / grant4,62652,657Form 4
2026-03-04LDOSWithheld for tax37648,031Form 4
2026-03-03LDOSWithheld for tax65148,407Form 4
2026-02-23LDOSWithheld for tax2,20549,058Form 4
2026-02-23LDOSOption exercise3,24051,263Form 4
2026-02-23LDOSOption exercise3,2400Form 4
2026-02-12LDOSWithheld for tax4,25048,023Form 4
2026-02-12LDOSAward / grant10,14652,273Form 4
2026-02-12LDOSAward / grant3,55242,127Form 4
2025-03-08LDOSWithheld for tax60644,575Form 4
2025-03-07LDOSAward / grant9,1499,149Form 4
2025-03-07LDOSAward / grant3,75845,181Form 4
2025-03-05LDOSWithheld for tax41041,423Form 4
2025-03-04LDOSWithheld for tax37041,842Form 4
2025-03-03LDOSWithheld for tax64642,212Form 4
2025-02-18LDOSWithheld for tax1,72342,858Form 4
2025-02-18LDOSOption exercise2,52444,581Form 4
2025-02-18LDOSOption exercise2,5240Form 4
2025-02-06LDOSWithheld for tax2,18442,057Form 4
2025-02-06LDOSAward / grant6,06444,241Form 4
2025-02-06LDOSAward / grant3,55438,177Form 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.