Castagna Michael

Director · Officer · MNKD

As of 2026-09-27, Castagna Michael has 53 Form 4 transactions on record across 1 company — 30 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.

Trades by company

MNKD · 53 trades
2026-07-15: Withheld for tax, 192,819 sh ($789K)2026-07-15: Withheld for tax, 63,996 sh ($262K)2026-07-15: Withheld for tax, 58,904 sh ($241K)2026-07-15: Withheld for tax, 47,481 sh ($194K)2026-07-15: Option exercise, 350,260 sh ($0)2026-07-15: Option exercise, 350,260 sh ($0)2026-05-11: Withheld for tax, 34,957 sh ($123K)2026-03-23: Award / grant, 782,000 sh ($0)2026-03-23: Award / grant, 796,000 sh ($0)2026-03-10: Purchase, 100,000 sh ($259K)2026-03-01: Award / grant, 15,290 sh ($50K)2026-02-26: Award / grant, 50,000 sh ($0)2026-02-26: Award / grant, 37,525 sh ($0)2026-02-26: Award / grant, 57,750 sh ($0)2025-12-24: Gift, 44,171 sh ($0)2025-12-17: Sale, 65,804 sh ($395K)2025-12-17: Option exercise, 65,804 sh ($299K)2025-12-17: Option exercise, 50,000 sh ($0)2025-12-17: Option exercise, 15,804 sh ($0)2025-12-16: Sale, 21,310 sh ($128K)2025-12-16: Option exercise, 21,310 sh ($97K)2025-12-16: Option exercise, 21,310 sh ($0)2025-12-12: Sale, 20,806 sh ($125K)2025-12-12: Option exercise, 20,806 sh ($95K)2025-12-12: Option exercise, 7,920 sh ($0)2025-12-12: Option exercise, 12,886 sh ($0)2025-12-02: Sale, 107,920 sh ($601K)2025-12-02: Option exercise, 107,920 sh ($491K)2025-12-02: Option exercise, 42,080 sh ($0)2025-12-02: Option exercise, 65,840 sh ($0)2025-07-15: Withheld for tax, 111,275 sh ($428K)2025-05-19: Withheld for tax, 26,114 sh ($114K)2025-05-14: Award / grant, 27,000 sh ($123K)2025-05-13: Award / grant, 428,000 sh ($0)2025-05-13: Award / grant, 523,000 sh ($0)2025-05-12: Withheld for tax, 334,954 sh ($1.5M)2025-05-12: Withheld for tax, 34,894 sh ($159K)2025-05-10: Award / grant, 298,560 sh ($0)2025-04-04: Other acquisition, 39,500 sh ($0)2024-08-29: Sale, 85,106 sh ($536K)2024-08-29: Gift, 19,000 sh ($0)2024-08-28: Gift, 13,894 sh ($0)2024-08-27: Withheld for tax, 56,085 sh ($302K)2024-07-15: Withheld for tax, 47,309 sh ($276K)2024-06-30: Award / grant, 5,000 sh ($15K)2024-05-18: Withheld for tax, 26,067 sh ($120K)2024-05-17: Withheld for tax, 245,443 sh ($1.1M)2024-05-17: Award / grant, 221,480 sh ($1.0M)2024-05-17: Other acquisition, 28,670 sh ($124K)2024-05-17: Other acquisition, 24,330 sh ($117K)2024-05-15: Award / grant, 465,000 sh ($0)2024-05-15: Award / grant, 569,000 sh ($0)2024-05-10: Withheld for tax, 34,830 sh ($150K)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-03-10MNKDPurchase100,000 @ $2.59$259K+4.0% of holding2,575,911Form 4
2025-12-17MNKDSale65,804 @ $6.01$395K−2.6% of holding2,504,792Form 4
2025-12-16MNKDSale21,310 @ $6.00$128K−0.8% of holding2,504,792Form 4
2025-12-12MNKDSale20,806 @ $6.00$125K−0.8% of holding2,504,792Form 4
2025-12-02MNKDSale107,920 @ $5.57$601K−4.1% of holding2,504,792Form 4
2024-08-29MNKDSale85,106 @ $6.30$536K−3.6% of holding2,294,836Form 4
47 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-07-15MNKDWithheld for tax192,8192,604,160Form 4
2026-07-15MNKDWithheld for tax63,9962,492,683Form 4
2026-07-15MNKDWithheld for tax58,9042,433,779Form 4
2026-07-15MNKDWithheld for tax47,4812,556,679Form 4
2026-07-15MNKDOption exercise350,2600Form 4
2026-07-15MNKDOption exercise350,2602,796,979Form 4
2026-05-11MNKDWithheld for tax34,9572,442,310Form 4
2026-03-23MNKDAward / grant782,000782,000Form 4
2026-03-23MNKDAward / grant796,000796,000Form 4
2026-03-01MNKDAward / grant15,2902,475,911Form 4
2026-02-26MNKDAward / grant50,00050,000Form 4
2026-02-26MNKDAward / grant37,52537,525Form 4
2026-02-26MNKDAward / grant57,75057,750Form 4
2025-12-24MNKDGift44,1712,460,621Form 4
2025-12-17MNKDOption exercise65,8042,570,596Form 4
2025-12-17MNKDOption exercise50,0000Form 4
2025-12-17MNKDOption exercise15,8040Form 4
2025-12-16MNKDOption exercise21,3102,526,102Form 4
2025-12-16MNKDOption exercise21,31015,804Form 4
2025-12-12MNKDOption exercise20,8062,525,598Form 4
2025-12-12MNKDOption exercise7,9200Form 4
2025-12-12MNKDOption exercise12,88637,114Form 4
2025-12-02MNKDOption exercise107,9202,612,712Form 4
2025-12-02MNKDOption exercise42,0807,920Form 4
2025-12-02MNKDOption exercise65,8400Form 4
2025-07-15MNKDWithheld for tax111,2752,504,792Form 4
2025-05-19MNKDWithheld for tax26,1142,612,934Form 4
2025-05-14MNKDAward / grant27,0002,639,048Form 4
2025-05-13MNKDAward / grant428,0002,612,048Form 4
2025-05-13MNKDAward / grant523,000523,000Form 4
2025-05-12MNKDWithheld for tax334,9542,218,942Form 4
2025-05-12MNKDWithheld for tax34,8942,184,048Form 4
2025-05-10MNKDAward / grant298,5602,553,896Form 4
2025-04-04MNKDOther acquisition39,5002,255,336Form 4
2024-08-29MNKDGift19,0002,379,942Form 4
2024-08-28MNKDGift13,8942,398,942Form 4
2024-08-27MNKDWithheld for tax56,0852,412,836Form 4
2024-07-15MNKDWithheld for tax47,3092,468,921Form 4
2024-06-30MNKDAward / grant5,0002,516,230Form 4
2024-05-18MNKDWithheld for tax26,0672,511,230Form 4

Source: SEC Form 4 filings. Each row links to its original filing.

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