MICHAEL G. BARRETT

CIK 1100612 · CEO · last filed 2026-06-04

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$7.33M

Companies

5

Total Filings

66

Lifetime Open-Market Net

-$34.70M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
OUT Director $31.34 $0 2 2026-06-04
MGNI CEO 403,074 $16.25 $6.55M -$32.48M 45 2026-05-19
RUBI CEO 1,662,302 $0.47 $777.3K -$2.22M 13 2020-06-05
Millennial Media Inc. (MM) Delisted President and CEO 0 $0 4 2015-10-23
Telaria, Inc. (TRMR) Delisted Director $5.02 $0 1 2013-10-01

Recent Filings · Page 6 of 7

66 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2020-01-21 RUBI Tax (F) −30,274 -$316.4K EDGAR
2019-11-19 RUBI Sell (S) −83,395 -$631.3K EDGAR
2019-05-17 RUBI Sell (S) −89,435 -$552.7K EDGAR
2019-02-22 RUBI Grant (A) +350,000 $0 EDGAR
2019-01-17 RUBI Tax (F) −31,063 -$124.9K EDGAR
2018-11-16 RUBI Tax (F) −67,281 -$310.8K EDGAR
2018-08-08 RUBI Buy (P) +100,000 $342.0K EDGAR
2018-03-16 RUBI Grant (A) +350,000 $0 EDGAR
2017-04-26 RUBI Grant (A) +1,099,138 $0 EDGAR
2017-03-21 RUBI Grant (A) +1,099,138 $0 EDGAR
Showing 5160 of 66
Page 6 of 7
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.