BARRETT MICHAEL G.

Director · Officer · MGNI, OUT

As of 2026-09-16, BARRETT MICHAEL G. has 41 Form 4 transactions on record across 2 companies — 26 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: $9.5MIndirect: $0$9.5Mas of 2026-09-16
  • Direct $9.5M
  • Indirect $0
MGNIdirect392,670 sh$9.3M
OUTdirect5,918 sh$167K

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 · 39 trades
2026-08-15: Withheld for tax, 10,404 sh ($257K)2026-08-06: Sale, 293,968 sh ($6.7M)2026-08-06: Option exercise, 293,968 sh ($1.7M)2026-08-06: Option exercise, 293,968 sh ($0)2026-07-15: Sale, 38,596 sh ($785K)2026-07-15: Option exercise, 38,596 sh ($224K)2026-07-15: Option exercise, 38,596 sh ($0)2026-06-29: Sale, 75,000 sh ($1.5M)2026-06-29: Option exercise, 75,000 sh ($435K)2026-06-29: Option exercise, 75,000 sh ($0)2026-06-16: Sale, 100,000 sh ($1.8M)2026-06-16: Option exercise, 100,000 sh ($580K)2026-06-16: Option exercise, 100,000 sh ($0)2026-06-15: Sale, 178,596 sh ($3.0M)2026-06-15: Option exercise, 178,596 sh ($1.0M)2026-06-15: Option exercise, 178,596 sh ($0)2026-05-15: Withheld for tax, 10,404 sh ($133K)2026-02-15: Withheld for tax, 23,549 sh ($276K)2026-01-09: Withheld for tax, 109,742 sh ($1.8M)2026-01-09: Option exercise, 213,750 sh ($0)2026-01-09: Option exercise, 213,750 sh ($0)2026-01-01: Award / grant, 90,909 sh ($0)2026-01-01: Award / grant, 122,864 sh ($0)2026-01-01: Award / grant, 94,044 sh ($0)2025-11-15: Withheld for tax, 12,198 sh ($173K)2025-08-18: Sale, 35,951 sh ($857K)2025-07-15: Sale, 70,900 sh ($1.6M)2025-06-24: Sale, 300,000 sh ($6.0M)2025-06-18: Sale, 30,000 sh ($570K)2025-06-16: Sale, 45,000 sh ($799K)2025-05-15: Withheld for tax, 13,086 sh ($208K)2025-02-15: Withheld for tax, 26,499 sh ($530K)2025-02-05: Withheld for tax, 55,675 sh ($1.0M)2025-02-05: Option exercise, 86,806 sh ($0)2025-02-05: Option exercise, 108,360 sh ($0)2025-01-09: Award / grant, 82,117 sh ($0)2025-01-09: Award / grant, 81,374 sh ($0)2025-01-09: Award / grant, 107,497 sh ($0)2024-12-04: Sale, 147,996 sh ($2.6M)
OUT · 2 trades
2026-06-03: Award / grant, 5,918 sh ($0)2025-09-18: Award / grant, 6,047 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-08-06MGNISale293,968 @ $22.72$6.7M−42.2% of holding403,074Form 4
2026-07-15MGNISale38,596 @ $20.35$785K−8.7% of holding403,074Form 4
2026-06-29MGNISale75,000 @ $19.50$1.5M−15.7% of holding403,074Form 4
2026-06-16MGNISale100,000 @ $17.50$1.8M−19.9% of holding403,074Form 4
2026-06-15MGNISale178,596 @ $16.59$3.0M−30.7% of holding403,074Form 4
2025-08-18MGNISale35,951 @ $23.85$857K−12.6% of holding249,857Form 4
2025-07-15MGNISale70,900 @ $23.27$1.6M−19.9% of holding285,808Form 4
2025-06-24MGNISale300,000 @ $20.01$6.0M−45.7% of holding356,708Form 4
2025-06-18MGNISale30,000 @ $19.00$570K−4.4% of holding656,708Form 4
2025-06-16MGNISale45,000 @ $17.76$799K−6.1% of holding686,708Form 4
2024-12-04MGNISale147,996 @ $17.52$2.6M−18.9% of holding634,914Form 4
30 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-08-15MGNIWithheld for tax10,404392,670Form 4
2026-08-06MGNIOption exercise293,968697,042Form 4
2026-08-06MGNIOption exercise293,9680Form 4
2026-07-15MGNIOption exercise38,596441,670Form 4
2026-07-15MGNIOption exercise38,596293,968Form 4
2026-06-29MGNIOption exercise75,000478,074Form 4
2026-06-29MGNIOption exercise75,000332,564Form 4
2026-06-16MGNIOption exercise100,000503,074Form 4
2026-06-16MGNIOption exercise100,000407,564Form 4
2026-06-15MGNIOption exercise178,596581,670Form 4
2026-06-15MGNIOption exercise178,596507,564Form 4
2026-06-03OUTAward / grant5,9185,918Form 4
2026-05-15MGNIWithheld for tax10,404403,074Form 4
2026-02-15MGNIWithheld for tax23,549412,162Form 4
2026-01-09MGNIWithheld for tax109,742435,711Form 4
2026-01-09MGNIOption exercise213,7500Form 4
2026-01-09MGNIOption exercise213,750545,453Form 4
2026-01-01MGNIAward / grant90,90990,909Form 4
2026-01-01MGNIAward / grant122,864122,864Form 4
2026-01-01MGNIAward / grant94,044331,703Form 4
2025-11-15MGNIWithheld for tax12,198237,659Form 4
2025-09-18OUTAward / grant6,0476,047Form 4
2025-05-15MGNIWithheld for tax13,086731,708Form 4
2025-02-15MGNIWithheld for tax26,499743,217Form 4
2025-02-05MGNIWithheld for tax55,675769,716Form 4
2025-02-05MGNIOption exercise86,8060Form 4
2025-02-05MGNIOption exercise108,360825,391Form 4
2025-01-09MGNIAward / grant82,117717,031Form 4
2025-01-09MGNIAward / grant81,37481,374Form 4
2025-01-09MGNIAward / grant107,497107,497Form 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.