Magnite, Inc. MGNI

Set alert

27.52 USD +4.73 (+20.75%)

At closeNov 5, 2026, 6:45 PM EST

27.59 +0.07 +0.25%

After hours · Nov 5, 6:45 PM ET

25.75 Day range 28.17

10.82 52-week range 28.17

Held by insiders 1.20%

Held by institutions 100.30%

Float held by institutions 101.52%

Institutions 443

Top institutional holders
Holder	% held	Shares	Value	Reported
Blackrock Inc.	8.86%	12,713,156	289.73M	Jun 29, 2026
Vanguard Portfolio Management LLC	5.72%	8,197,286	186.82M	Jun 29, 2026
FMR, LLC	5.41%	7,759,426	176.84M	Jun 29, 2026
Vanguard Capital Management LLC	4.34%	6,225,195	141.87M	Jun 29, 2026
Wellington Management Group, LLP	4.21%	6,044,492	137.75M	Jun 29, 2026
Dimensional Fund Advisors LP	3.67%	5,260,132	119.88M	Jun 29, 2026

Top mutual fund holders
Holder	% held	Shares	Value	Reported
VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund	3.02%	4,326,601	98.60M	Jun 29, 2026
iShares Trust-iShares Russell 2000 ETF	2.61%	3,747,899	85.41M	Sep 29, 2026
VANGUARD INDEX FUNDS-Vanguard Small-Cap Index Fund	2.17%	3,116,881	71.03M	Jun 29, 2026
American Century Mutual Funds, Inc.-Small Cap Growth Fund	1.62%	2,324,003	52.96M	Sep 29, 2026
VANGUARD INDEX FUNDS-Vanguard Small-Cap Value Index Fund	1.38%	1,976,558	45.05M	Jun 29, 2026
VANGUARD INDEX FUNDS-Vanguard Extended Market Index Fund	1.15%	1,644,422	37.48M	Jun 29, 2026

MGNI insiders
Insider	Relation	Latest transaction	Date	Shares held
BARRETT MICHAEL G	Chief Executive Officer	Sale	Aug 5, 2026	403,074
BUCKLEY SEAN PATRICK	Officer	Sale	Aug 17, 2026	293,060
BUONASERA DAVID	Chief Technology Officer	Sale	Sep 13, 2026	245,155
CAINE PAUL J	Director	Sale	Oct 11, 2026	124,901
DAY DAVID L.	Chief Financial Officer	Stock Gift	Aug 12, 2026	467,031
EVANS KATHERYN SEITZ	Officer	Sale	Sep 10, 2026	441,800

Held by funds