Casper Mark

Officer · MRVL

As of 2026-09-27, Casper Mark has 181 Form 4 transactions on record across 1 company — 59 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 April in multiple years since 2024 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.

Reconstructed holdings

Direct: $3.4MIndirect: $11.8M$15.2Mas of 2026-09-27
  • Direct $3.4M
  • Indirect $11.8M
MRVLindirect44,907 sh$11.8M
MRVLdirect13,090 sh$3.4M

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

MRVL · 181 trades
2026-07-15: Withheld for tax, 806 sh ($166K)2026-07-15: Withheld for tax, 734 sh ($151K)2026-07-15: Withheld for tax, 627 sh ($129K)2026-07-15: Option exercise, 1,190 sh ($0)2026-07-15: Option exercise, 1,190 sh ($0)2026-07-15: Option exercise, 1,529 sh ($0)2026-07-15: Option exercise, 1,393 sh ($0)2026-07-15: Option exercise, 1,393 sh ($0)2026-07-15: Option exercise, 1,529 sh ($0)2026-06-15: Gift, 1,000 sh ($0)2026-04-17: Sale, 10,000 sh ($1.4M)2026-04-15: Withheld for tax, 38,617 sh ($5.2M)2026-04-15: Withheld for tax, 1,095 sh ($147K)2026-04-15: Withheld for tax, 759 sh ($102K)2026-04-15: Withheld for tax, 692 sh ($93K)2026-04-15: Option exercise, 2,208 sh ($0)2026-04-15: Option exercise, 77,887 sh ($0)2026-04-15: Option exercise, 1,529 sh ($0)2026-04-15: Option exercise, 1,394 sh ($0)2026-04-15: Award / grant, 14,280 sh ($0)2026-04-15: Option exercise, 77,887 sh ($0)2026-04-15: Option exercise, 1,529 sh ($0)2026-04-15: Option exercise, 1,394 sh ($0)2026-04-15: Option exercise, 2,208 sh ($0)2026-04-06: Sale, 6,900 sh ($755K)2026-04-02: Sale, 10,854 sh ($1.2M)2026-04-01: Sale, 7,000 sh ($736K)2026-01-15: Withheld for tax, 1,217 sh ($98K)2026-01-15: Withheld for tax, 759 sh ($61K)2026-01-15: Withheld for tax, 696 sh ($56K)2026-01-15: Option exercise, 2,208 sh ($0)2026-01-15: Option exercise, 1,394 sh ($0)2026-01-15: Option exercise, 2,208 sh ($0)2026-01-15: Option exercise, 1,529 sh ($0)2026-01-15: Option exercise, 1,529 sh ($0)2026-01-15: Option exercise, 1,394 sh ($0)2026-01-05: Sale, 5,000 sh ($465K)2025-12-15: Withheld for tax, 15,139 sh ($1.3M)2025-12-15: Option exercise, 30,534 sh ($0)2025-12-15: Option exercise, 30,534 sh ($0)2025-12-05: Sale, 1,253 sh ($127K)2025-11-15: Withheld for tax, 1,233 sh ($107K)2025-11-15: Option exercise, 2,486 sh ($0)2025-11-15: Option exercise, 2,486 sh ($0)2025-10-15: Withheld for tax, 1,095 sh ($97K)2025-10-15: Withheld for tax, 759 sh ($67K)2025-10-15: Withheld for tax, 754 sh ($67K)2025-10-15: Withheld for tax, 692 sh ($62K)2025-10-15: Withheld for tax, 105 sh ($9K)2025-10-15: Option exercise, 1,520 sh ($0)2025-10-15: Option exercise, 1,529 sh ($0)2025-10-15: Option exercise, 1,529 sh ($0)2025-10-15: Option exercise, 1,394 sh ($0)2025-10-15: Option exercise, 2,207 sh ($0)2025-10-15: Option exercise, 210 sh ($0)2025-10-15: Option exercise, 1,520 sh ($0)2025-10-15: Option exercise, 2,207 sh ($0)2025-10-15: Option exercise, 210 sh ($0)2025-10-15: Option exercise, 1,394 sh ($0)2025-08-15: Withheld for tax, 1,233 sh ($94K)2025-08-15: Option exercise, 2,486 sh ($0)2025-08-15: Option exercise, 2,486 sh ($0)2025-07-18: Sale, 3,000 sh ($217K)2025-07-15: Withheld for tax, 1,095 sh ($79K)2025-07-15: Withheld for tax, 758 sh ($55K)2025-07-15: Withheld for tax, 754 sh ($55K)2025-07-15: Withheld for tax, 691 sh ($50K)2025-07-15: Withheld for tax, 104 sh ($8K)2025-07-15: Option exercise, 1,519 sh ($0)2025-07-15: Option exercise, 2,208 sh ($0)2025-07-15: Option exercise, 1,528 sh ($0)2025-07-15: Option exercise, 1,393 sh ($0)2025-07-15: Option exercise, 1,393 sh ($0)2025-07-15: Option exercise, 1,528 sh ($0)2025-07-15: Option exercise, 2,208 sh ($0)2025-07-15: Option exercise, 209 sh ($0)2025-07-15: Option exercise, 209 sh ($0)2025-07-15: Option exercise, 1,519 sh ($0)2025-05-19: Sale, 626 sh ($38K)2025-05-15: Withheld for tax, 1,233 sh ($80K)2025-05-15: Option exercise, 2,485 sh ($0)2025-05-15: Option exercise, 2,485 sh ($0)2025-04-23: Sale, 12,460 sh ($685K)2025-04-15: Withheld for tax, 9,017 sh ($481K)2025-04-15: Withheld for tax, 1,095 sh ($58K)2025-04-15: Withheld for tax, 754 sh ($40K)2025-04-15: Withheld for tax, 692 sh ($37K)2025-04-15: Withheld for tax, 597 sh ($32K)2025-04-15: Withheld for tax, 105 sh ($6K)2025-04-15: Option exercise, 210 sh ($0)2025-04-15: Option exercise, 2,208 sh ($0)2025-04-15: Option exercise, 1,394 sh ($0)2025-04-15: Option exercise, 18,186 sh ($0)2025-04-15: Award / grant, 18,347 sh ($0)2025-04-15: Option exercise, 210 sh ($0)2025-04-15: Option exercise, 1,519 sh ($0)2025-04-15: Option exercise, 2,208 sh ($0)2025-04-15: Option exercise, 1,394 sh ($0)2025-04-15: Option exercise, 18,186 sh ($0)2025-04-15: Option exercise, 1,203 sh ($0)2025-04-15: Option exercise, 1,519 sh ($0)2025-04-15: Option exercise, 1,203 sh ($0)2025-02-18: Sale, 1,253 sh ($135K)2025-02-15: Withheld for tax, 1,233 sh ($131K)2025-02-15: Option exercise, 2,486 sh ($0)2025-02-15: Option exercise, 2,486 sh ($0)2025-01-17: Sale, 7,755 sh ($954K)2025-01-15: Withheld for tax, 1,095 sh ($127K)2025-01-15: Withheld for tax, 762 sh ($88K)2025-01-15: Withheld for tax, 692 sh ($80K)2025-01-15: Withheld for tax, 667 sh ($77K)2025-01-15: Withheld for tax, 104 sh ($12K)2025-01-15: Option exercise, 1,203 sh ($0)2025-01-15: Option exercise, 1,519 sh ($0)2025-01-15: Option exercise, 209 sh ($0)2025-01-15: Option exercise, 1,203 sh ($0)2025-01-15: Option exercise, 2,207 sh ($0)2025-01-15: Option exercise, 1,519 sh ($0)2025-01-15: Option exercise, 1,394 sh ($0)2025-01-15: Option exercise, 1,394 sh ($0)2025-01-15: Option exercise, 2,207 sh ($0)2025-01-15: Option exercise, 209 sh ($0)2025-01-02: Sale, 2,500 sh ($283K)2024-11-15: Withheld for tax, 1,233 sh ($108K)2024-11-15: Option exercise, 2,485 sh ($0)2024-11-15: Option exercise, 2,485 sh ($0)2024-10-15: Withheld for tax, 1,095 sh ($87K)2024-10-15: Withheld for tax, 754 sh ($60K)2024-10-15: Withheld for tax, 692 sh ($55K)2024-10-15: Withheld for tax, 597 sh ($47K)2024-10-15: Withheld for tax, 105 sh ($8K)2024-10-15: Option exercise, 1,203 sh ($0)2024-10-15: Option exercise, 1,394 sh ($0)2024-10-15: Option exercise, 1,203 sh ($0)2024-10-15: Option exercise, 2,208 sh ($0)2024-10-15: Option exercise, 1,394 sh ($0)2024-10-15: Option exercise, 210 sh ($0)2024-10-15: Option exercise, 2,208 sh ($0)2024-10-15: Option exercise, 210 sh ($0)2024-10-15: Option exercise, 1,519 sh ($0)2024-10-15: Option exercise, 1,519 sh ($0)2024-10-01: Sale, 2,500 sh ($177K)2024-08-15: Withheld for tax, 1,233 sh ($85K)2024-08-15: Option exercise, 2,486 sh ($0)2024-08-15: Option exercise, 2,486 sh ($0)2024-07-15: Withheld for tax, 1,095 sh ($81K)2024-07-15: Withheld for tax, 754 sh ($55K)2024-07-15: Withheld for tax, 691 sh ($51K)2024-07-15: Withheld for tax, 597 sh ($44K)2024-07-15: Withheld for tax, 104 sh ($8K)2024-07-15: Option exercise, 1,393 sh ($0)2024-07-15: Option exercise, 1,393 sh ($0)2024-07-15: Option exercise, 2,208 sh ($0)2024-07-15: Option exercise, 2,208 sh ($0)2024-07-15: Option exercise, 209 sh ($0)2024-07-15: Option exercise, 209 sh ($0)2024-07-15: Option exercise, 1,519 sh ($0)2024-07-15: Option exercise, 1,203 sh ($0)2024-07-15: Option exercise, 1,519 sh ($0)2024-07-15: Option exercise, 1,203 sh ($0)2024-07-01: Sale, 2,500 sh ($175K)2024-05-15: Withheld for tax, 1,233 sh ($86K)2024-05-15: Option exercise, 2,486 sh ($0)2024-05-15: Option exercise, 2,486 sh ($0)2024-04-19: Sale, 2,500 sh ($162K)2024-04-15: Withheld for tax, 1,095 sh ($74K)2024-04-15: Withheld for tax, 754 sh ($51K)2024-04-15: Withheld for tax, 597 sh ($41K)2024-04-15: Withheld for tax, 105 sh ($7K)2024-04-15: Option exercise, 210 sh ($0)2024-04-15: Award / grant, 16,725 sh ($0)2024-04-15: Option exercise, 2,207 sh ($0)2024-04-15: Option exercise, 210 sh ($0)2024-04-15: Option exercise, 1,520 sh ($0)2024-04-15: Option exercise, 1,203 sh ($0)2024-04-15: Option exercise, 1,520 sh ($0)2024-04-15: Option exercise, 1,203 sh ($0)2024-04-15: Option exercise, 2,207 sh ($0)2024-02-15: Withheld for tax, 1,233 sh ($83K)2024-02-15: Option exercise, 2,485 sh ($0)2024-02-15: Option exercise, 2,485 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-04-17MRVLSale10,000 @ $135.50$1.4M−21.8% of holding35,878Form 4
2026-04-06MRVLSale6,900 @ $109.45$755K−40.2% of holding10,263Form 4
2026-04-02MRVLSale10,854 @ $107.01$1.2M−73.0% of holding4,023Form 4
2026-04-01MRVLSale7,000 @ $105.11$736K−32.0% of holding14,877Form 4
2026-01-05MRVLSale5,000 @ $93.08$465K−20.5% of holding19,418Form 4
2025-12-05MRVLSale1,253 @ $101.00$127K−12.2% of holding9,023Form 4
2025-07-18MRVLSale3,000 @ $72.35$217K−14.9% of holding17,163Form 4
2025-05-19MRVLSale626 @ $61.10$38K−50.0% of holding626Form 4
2025-04-23MRVLSale12,460 @ $55.00$685K−100.0% of holding0Form 4
2025-02-18MRVLSale1,253 @ $107.61$135K−100.0% of holding0Form 4
2025-01-17MRVLSale7,755 @ $123.08$954K−100.0% of holding0Form 4
2025-01-02MRVLSale2,500 @ $113.00$283K−9.2% of holding24,706Form 4
2024-10-01MRVLSale2,500 @ $70.83$177K−10.0% of holding22,494Form 4
2024-07-01MRVLSale2,500 @ $70.07$175K−10.9% of holding20,450Form 4
2024-04-19MRVLSale2,500 @ $64.75$162K−10.5% of holding21,266Form 4
166 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-07-15MRVLWithheld for tax8061,853Form 4
2026-07-15MRVLWithheld for tax7341,130Form 4
2026-07-15MRVLWithheld for tax6272,416Form 4
2026-07-15MRVLOption exercise1,19013,090Form 4
2026-07-15MRVLOption exercise1,1903,043Form 4
2026-07-15MRVLOption exercise1,5292,659Form 4
2026-07-15MRVLOption exercise1,3931,864Form 4
2026-07-15MRVLOption exercise1,3934,182Form 4
2026-07-15MRVLOption exercise1,52910,703Form 4
2026-06-15MRVLGift1,00044,907Form 4
2026-04-15MRVLWithheld for tax38,61745,878Form 4
2026-04-15MRVLWithheld for tax1,0955,136Form 4
2026-04-15MRVLWithheld for tax7596,608Form 4
2026-04-15MRVLWithheld for tax6925,838Form 4
2026-04-15MRVLOption exercise2,2080Form 4
2026-04-15MRVLOption exercise77,8870Form 4
2026-04-15MRVLOption exercise1,52912,232Form 4
2026-04-15MRVLOption exercise1,3945,575Form 4
2026-04-15MRVLAward / grant14,28014,280Form 4
2026-04-15MRVLOption exercise77,88784,495Form 4
2026-04-15MRVLOption exercise1,5297,367Form 4
2026-04-15MRVLOption exercise1,3946,530Form 4
2026-04-15MRVLOption exercise2,2086,231Form 4
2026-01-15MRVLWithheld for tax1,21720,409Form 4
2026-01-15MRVLWithheld for tax75921,877Form 4
2026-01-15MRVLWithheld for tax69621,107Form 4
2026-01-15MRVLOption exercise2,20821,626Form 4
2026-01-15MRVLOption exercise1,3946,969Form 4
2026-01-15MRVLOption exercise2,2082,208Form 4
2026-01-15MRVLOption exercise1,52913,761Form 4
2026-01-15MRVLOption exercise1,52922,636Form 4
2026-01-15MRVLOption exercise1,39421,803Form 4
2025-12-15MRVLWithheld for tax15,13924,418Form 4
2025-12-15MRVLOption exercise30,5340Form 4
2025-12-15MRVLOption exercise30,53439,557Form 4
2025-11-15MRVLWithheld for tax1,23310,275Form 4
2025-11-15MRVLOption exercise2,4860Form 4
2025-11-15MRVLOption exercise2,48611,508Form 4
2025-10-15MRVLWithheld for tax1,0957,550Form 4
2025-10-15MRVLWithheld for tax7599,022Form 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.