Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 24 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

24 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Nov. 16, 2015 MGNI S 10b5-1 2,800 $14.69 $41,132 92,200 Direct -2.95% Disposed 71.2% (price as of 2026-10-05)
May 15, 2015 MGNI S 10b5-1 6,100 $17.25 $105,225 43,900 Direct -12.20% Disposed 45.8% (price as of 2026-10-05)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
March 15, 2018 MGNI Employee Stock Option (Right to Buy) Common Stock (40,560) $1.97 March 15, 2028 40,560 Acquired
March 15, 2017 MGNI Stock Option (right to buy) Common Stock (31,200) $6.06 March 15, 2027 31,200 Acquired
May 16, 2016 MGNI Stock Option (right to buy) Common Stock (175,000) $9.80 July 23, 2023 175,000 Disposed
May 16, 2016 MGNI Common Stock Common Stock (175,000) $9.80 July 23, 2023 175,000 Acquired
May 16, 2016 MGNI Stock Option (right to buy) Common Stock (19,500) $16.75 May 19, 2025 19,500 Disposed
May 16, 2016 MGNI Common Stock Common Stock (19,500) $16.75 May 19, 2025 19,500 Acquired
May 19, 2015 MGNI Stock Option (Right to Buy) Common Stock (19,500) $16.75 May 19, 2025 19,500 Acquired
April 7, 2014 MGNI Stock Option (Right to Buy) Common Stock (175,000) $9.80 July 23, 2023 175,000 Acquired
April 7, 2014 MGNI Stock Option (Right to Buy) Class A Common Stock (175,000) $9.80 July 23, 2023 175,000 Disposed

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 2 holdings

07

Securities held when first becoming an insider, per SEC Form 3.

DateTickerSecuritySharesOwnership
April 1, 2014 MGNI Class A Common Stock [F1] 50,000 Direct
April 1, 2014 MGNI Stock Option (Right to Buy)→ Class A Common Stock [F1] (175,000) 175,000 Direct