Gephart Brian

Officer · MGNI

As of 2026-09-16, Gephart Brian has 13 Form 4 transactions on record across 1 company — 6 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 August in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.

Reconstructed holdings

Direct: $2.4MIndirect: $0$2.4Mas of 2026-09-16
  • Direct $2.4M
  • Indirect $0
MGNIdirect102,328 sh$2.4M

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

MGNI · 13 trades
2026-08-15: Withheld for tax, 3,789 sh ($94K)2026-08-10: Sale, 12,479 sh ($308K)2026-05-15: Withheld for tax, 3,789 sh ($49K)2026-02-15: Withheld for tax, 6,149 sh ($72K)2026-01-01: Award / grant, 39,185 sh ($0)2025-11-15: Withheld for tax, 3,549 sh ($50K)2025-09-04: Sale, 27,671 sh ($684K)2025-08-18: Sale, 2,961 sh ($71K)2025-05-15: Withheld for tax, 3,045 sh ($48K)2025-05-12: Sale, 6,334 sh ($102K)2025-03-03: Sale, 6,250 sh ($100K)2025-02-15: Withheld for tax, 6,749 sh ($135K)2025-01-02: Award / grant, 33,113 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-08-10MGNISale12,479 @ $24.68$308K−10.5% of holding106,117Form 4
2025-09-04MGNISale27,671 @ $24.71$684K−23.0% of holding92,898Form 4
2025-08-18MGNISale2,961 @ $23.85$71K−2.4% of holding120,569Form 4
2025-05-12MGNISale6,334 @ $16.16$102K−4.8% of holding126,575Form 4
2025-03-03MGNISale6,250 @ $16.00$100K−4.5% of holding132,909Form 4
8 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-08-15MGNIWithheld for tax3,789102,328Form 4
2026-05-15MGNIWithheld for tax3,789118,596Form 4
2026-02-15MGNIWithheld for tax6,149122,385Form 4
2026-01-01MGNIAward / grant39,185128,534Form 4
2025-11-15MGNIWithheld for tax3,54989,349Form 4
2025-05-15MGNIWithheld for tax3,045123,530Form 4
2025-02-15MGNIWithheld for tax6,749139,159Form 4
2025-01-02MGNIAward / grant33,113145,908Form 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.