Chu Maggie

Director · Officer · LFUS, ITT

As of 2026-09-16, Chu Maggie has 33 Form 4 transactions on record across 2 companies — 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: $2.9MIndirect: $0$2.9Mas of 2026-09-16
  • Direct $2.9M
  • Indirect $0
LFUSdirect6,011 sh$2.4M
ITTdirect2,561 sh$498K

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

LFUS · 31 trades
2026-09-03: Award / grant, 5 sh ($2K)2026-06-04: Award / grant, 6 sh ($3K)2026-05-20: Sale, 8,926 sh ($3.9M)2026-05-20: Sale, 2,408 sh ($1.1M)2026-05-20: Option exercise, 4,283 sh ($1.0M)2026-05-20: Option exercise, 4,030 sh ($934K)2026-05-20: Option exercise, 3,084 sh ($711K)2026-05-20: Sale, 63 sh ($28K)2026-04-30: Sale, 282 sh ($112K)2026-04-28: Sale, 498 sh ($195K)2026-04-28: Sale, 317 sh ($124K)2026-04-27: Withheld for tax, 183 sh ($74K)2026-04-25: Withheld for tax, 206 sh ($84K)2026-04-24: Withheld for tax, 318 sh ($129K)2026-04-24: Withheld for tax, 4 sh ($2K)2026-04-22: Award / grant, 1,084 sh ($0)2026-03-05: Award / grant, 6 sh ($2K)2026-02-04: Sale, 2,061 sh ($673K)2026-02-04: Option exercise, 2,061 sh ($542K)2026-02-04: Option exercise, 2,061 sh ($0)2025-12-05: Award / grant, 7 sh ($2K)2025-09-05: Award / grant, 7 sh ($2K)2025-06-05: Award / grant, 8 sh ($2K)2025-04-28: Withheld for tax, 120 sh ($21K)2025-04-27: Withheld for tax, 136 sh ($24K)2025-04-25: Withheld for tax, 154 sh ($27K)2025-04-24: Award / grant, 2,421 sh ($0)2025-01-23: Award / grant, 1,774 sh ($0)2024-04-25: Option exercise, 3,084 sh ($0)2023-04-27: Option exercise, 4,283 sh ($0)2022-04-28: Option exercise, 4,030 sh ($0)
ITT · 2 trades
2026-05-21: Award / grant, 909 sh ($0)2025-05-21: Award / grant, 1,040 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-05-20LFUSSale8,926 @ $435.22$3.9M−51.3% of holding8,472Form 4
2026-05-20LFUSSale2,408 @ $436.38$1.1M−28.4% of holding6,064Form 4
2026-05-20LFUSSale63 @ $437.37$28K−1.0% of holding6,001Form 4
2026-04-30LFUSSale282 @ $396.90$112K−4.5% of holding6,001Form 4
2026-04-28LFUSSale498 @ $392.47$195K−7.3% of holding6,283Form 4
2026-04-28LFUSSale317 @ $392.47$124K−4.5% of holding6,781Form 4
2026-02-04LFUSSale2,061 @ $326.71$673K−23.5% of holding6,719Form 4
26 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-09-03LFUSAward / grant56,011Form 4
2026-06-04LFUSAward / grant66,007Form 4
2026-05-21ITTAward / grant9092,561Form 4
2026-05-20LFUSOption exercise4,28314,314Form 4
2026-05-20LFUSOption exercise4,03010,031Form 4
2026-05-20LFUSOption exercise3,08417,398Form 4
2026-04-27LFUSWithheld for tax1837,098Form 4
2026-04-25LFUSWithheld for tax2067,281Form 4
2026-04-24LFUSWithheld for tax3187,487Form 4
2026-04-24LFUSWithheld for tax47,805Form 4
2026-04-22LFUSAward / grant1,0847,809Form 4
2026-03-05LFUSAward / grant66,725Form 4
2026-02-04LFUSOption exercise2,0618,780Form 4
2026-02-04LFUSOption exercise2,0610Form 4
2025-12-05LFUSAward / grant76,719Form 4
2025-09-05LFUSAward / grant76,712Form 4
2025-06-05LFUSAward / grant86,705Form 4
2025-05-21ITTAward / grant1,0401,652Form 4
2025-04-28LFUSWithheld for tax1206,697Form 4
2025-04-27LFUSWithheld for tax1366,817Form 4
2025-04-25LFUSWithheld for tax1546,953Form 4
2025-04-24LFUSAward / grant2,4217,107Form 4
2025-01-23LFUSAward / grant1,7744,686Form 4
2024-04-25LFUSOption exercise3,0841,542Form 4
2023-04-27LFUSOption exercise4,2830Form 4
2022-04-28LFUSOption exercise4,0300Form 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.