LYTIR

Insider · SEC Form 4 · Director

Knopper Douglas S

In the 12 months to Nov 8, 2026, on the open market: sold $2.5M of MGNI. Filed a median of 1 business day after the trade.

Open-market purchases and sales this filer reported on SEC Form 4, by the day traded. Insiders have two business days to file. A sale marked 10b5-1 was made under a plan adopted in advance. How to read these

Insider purchases and sales, by month (last 12 months)Insider purchases: $0 in total; Insider sales: $2.5M in total.Jun: Insider sales $676KAug: Insider sales $848KSep: Insider sales $981KDecJanFebMarAprMayJunJulAugSepOctNov
Insider purchases above the line: $0Insider sales below: $2.5M
Dollar value of open-market purchases and sales reported on SEC Form 4, by the month traded. Sales include pre-arranged 10b5-1 plan sales.
  1. MGNISold: MAGNITE, INC. Sep 17, 2026 37,337 shares filed Sep 18, 2026 51,136 shares held directly after, as filed 10b5-1 plan filing $981K
  2. MGNISold: MAGNITE, INC. Aug 6, 2026 37,337 shares filed Aug 7, 2026 88,473 shares held directly after, as filed 10b5-1 plan filing $848K
  3. MGNISold: MAGNITE, INC. Jun 16, 2026 37,337 shares filed Jun 17, 2026 125,810 shares held directly after, as filed 10b5-1 plan filing $676K

Source: SEC Form 4 filings. Value is shares × the price reported on the filing; a filing whose price failed Lytir's check against the market price is left out, and a trade that related owners reported on separate forms is counted once. Filings can be late, amended or wrong at the source; see methodology.