Mastrocola Lauren

Officer · PRAX

As of 2026-09-16, Mastrocola Lauren has 27 Form 4 transactions on record across 1 company — 22 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: $4.2MIndirect: $0$4.2Mas of 2026-09-16
  • Direct $4.2M
  • Indirect $0
PRAXdirect13,573 sh$4.2M

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

PRAX · 27 trades
2026-05-14: Award / grant, 127 sh ($21K)2026-01-12: Withheld for tax, 344 sh ($95K)2026-01-10: Withheld for tax, 367 sh ($106K)2026-01-08: Award / grant, 7,500 sh ($0)2026-01-08: Award / grant, 3,750 sh ($0)2026-01-07: Withheld for tax, 35 sh ($10K)2025-11-20: Sale, 11,455 sh ($2.2M)2025-11-20: Sale, 2,145 sh ($413K)2025-11-20: Option exercise, 5,250 sh ($299K)2025-11-20: Option exercise, 1,557 sh ($208K)2025-11-20: Option exercise, 2,680 sh ($116K)2025-11-20: Option exercise, 2,351 sh ($104K)2025-11-20: Option exercise, 1,047 sh ($52K)2025-11-20: Option exercise, 508 sh ($43K)2025-11-20: Option exercise, 207 sh ($9K)2025-11-20: Option exercise, 2,680 sh ($0)2025-11-20: Option exercise, 207 sh ($0)2025-11-20: Option exercise, 5,250 sh ($0)2025-11-20: Option exercise, 2,351 sh ($0)2025-11-20: Option exercise, 1,047 sh ($0)2025-11-20: Option exercise, 508 sh ($0)2025-11-20: Option exercise, 1,557 sh ($0)2025-02-12: Withheld for tax, 40 sh ($3K)2025-01-12: Withheld for tax, 390 sh ($25K)2025-01-10: Award / grant, 10,000 sh ($0)2025-01-10: Award / grant, 5,000 sh ($0)2025-01-07: Withheld for tax, 35 sh ($3K)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2025-11-20PRAXSale11,455 @ $191.96$2.2M−47.6% of holding12,587Form 4
2025-11-20PRAXSale2,145 @ $192.71$413K−17.0% of holding10,442Form 4
25 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-05-14PRAXAward / grant12713,573Form 4
2026-01-12PRAXWithheld for tax34413,446Form 4
2026-01-10PRAXWithheld for tax36713,790Form 4
2026-01-08PRAXAward / grant7,5007,500Form 4
2026-01-08PRAXAward / grant3,75014,157Form 4
2026-01-07PRAXWithheld for tax3510,407Form 4
2025-11-20PRAXOption exercise5,25024,042Form 4
2025-11-20PRAXOption exercise1,55713,554Form 4
2025-11-20PRAXOption exercise2,68016,234Form 4
2025-11-20PRAXOption exercise2,35118,792Form 4
2025-11-20PRAXOption exercise1,04711,489Form 4
2025-11-20PRAXOption exercise50811,997Form 4
2025-11-20PRAXOption exercise20716,441Form 4
2025-11-20PRAXOption exercise2,6809,320Form 4
2025-11-20PRAXOption exercise2070Form 4
2025-11-20PRAXOption exercise5,25011,376Form 4
2025-11-20PRAXOption exercise2,351981Form 4
2025-11-20PRAXOption exercise1,0470Form 4
2025-11-20PRAXOption exercise5080Form 4
2025-11-20PRAXOption exercise1,5570Form 4
2025-02-12PRAXWithheld for tax4010,442Form 4
2025-01-12PRAXWithheld for tax39010,482Form 4
2025-01-10PRAXAward / grant10,00010,000Form 4
2025-01-10PRAXAward / grant5,00010,872Form 4
2025-01-07PRAXWithheld for tax355,872Form 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.