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MAGNITE INC (MGNI)

Institutional ownership, SEC filings and insider activity

Sector: Technology · SEC CIK 0001595974 · EDGAR filings · Updated 2026-07-17

MAGNITE INC (MGNI) has reported institutional ownership of 91.5%, with 296 institutional managers holding positions valued at $1.56B per the latest 13F reporting period. SEC filings include an active notice of delisting or failure to satisfy a continued listing rule (8-K Item 3.01).

Institutional ownership
91.5%
Institutional managers
296
Reported 13F value
$1.56B
Insider activity
134 trans.
−$29.9M net selling
Data flags
1 active
from SEC filings

Latest updates

Institutional ownership overview

According to SEC 13F filings tracked by Sightfile, MAGNITE INC has 296 institutional holders and institutional ownership of 91.5%.

Insider activity

Insiders reported 134 transactions (0 buys, 66 sells) across 16 reporting insiders, with a net reported value of −$29.9M.

Data flags from SEC filings

Active notice of delisting or failure to satisfy a continued listing rule (8-K Item 3.01), most recently filed 2020-05-27 (recurring since 2020-05-27) — source filing. The authoritative details are those stated in the filing itself.

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See full history, cross-references and alerts on Sightfile
Sightfile provides information only — not investment advice, recommendations, or an assessment of any security. Data is derived from official public sources (SEC EDGAR and U.S. government agencies), may contain errors or delays, and should be verified against the source filing before relying on it.
Data sources: SEC EDGAR (filings, 13F, FTD), aggregated by Sightfile. Page updated 2026-07-17.