Arkolith/Insider Trading/MGNI/Form 4

Barrett Michael G.

CEO, DirectorMAGNITE, INC. (MGNI) · full profile →Form 4 · filed Jun 17, 2026
Net Selling
Open-Market Buys
$0
Open-Market Sells
$4.7M
Net Open-Market Flow
-$4.7M
Transactions
6
4 non-derivative · 2 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Jun 16, 2026Option exercise(M)100K$5.80$580K503K
Jun 16, 2026Sell(S)100K$17.50$1.8M403K
Jun 15, 2026Option exercise(M)179K$5.80$1.0M582K
Jun 15, 2026Sell(S)179K$16.59$3.0M403K

Derivative Transactions (Table II)

DateActionSharesPriceValueOwned After
Jun 16, 2026Option exercise(M)100K—$0408K
Jun 15, 2026Option exercise(M)179K—$0508K

Transaction Codes

M
Option exercise / conversion
S
Open-market sale

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0001193125-26-274501) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML