Sign inTry free
Magnite (MGNI) logo

Magnite (MGNI) insider trading in the last 6 months

3 insiders sold $929K. No buys.

Filings: 4, in the last 6 months
Quality Score: 21, Exceptional

We do the work for you. Every stock is scored and ranked, every 15 seconds while the market is open. Here it's 15 minutes behind. Pro members see it live.

See all 4 tradesSee it live, free until Wednesday morning. No account. No card. Then keep going with a free account.

Form 4 filings, newest first

SellRobert F. Spillane$246KDirectorat $23.76 on Sep 14, filed Sep 16
SellBrian Gephart$308KChief Accounting Officerat $24.68 on Aug 10, filed Aug 12
SellRachel Lam$242KDirectorat $24.16 on Aug 10, filed Aug 12

From SEC Form 4s, the newest filed Sep 16, 2026 · Insiders have 2 business days to file a trade

Pro members see every filing on MGNI with what each insider bought or sold and at what price, and can turn on an optional alert when an insider buys.

Who files at Magnite

Insider trades by person

Tested. Our top-scored stocks returned 2.2x the average stock over the next month. Reconstructed after the fact; recorded live since Sep 9, 2026. How we tested it

Questions about MGNI's insider trades

As of Nov 9, 2026: Magnite (MGNI) has 4 insider filings on record in the last 6 months, the newest filed Sep 16, 2026. Its Quality Score is 21 (Exceptional). Scores as of 4:44 PM ET, 15 minutes behind.

Are MGNI insiders buying or selling?

3 insiders sold $929K across 4 filings in the last 6 months. No open-⁠market buys on record. The newest filing: Robert F. Spillane, Director, sold $246K on Sep 14, 2026.

Who are MGNI's biggest insider sellers?

By the dollars of their sales in the last 6 months: Robert F. Spillane (Director), 2 sales; Brian Gephart (Chief Accounting Officer), 1 sale; Rachel Lam (Director), 1 sale.

When did an MGNI insider last buy?

No MGNI insider bought shares on the open market in the last 6 months, as filed on Form 4. The newest filing is a sale by Robert F. Spillane on Sep 14, 2026.

Magnite's page has its Quality Score, its chart, and its earnings. More in Technology and Software.

Every insider trade, with its stock's score.

Real-time prices, every Form 4 on every stock with its Quality Score, sorting, filters, and optional alerts when the people you follow file.

See the last 30 days of insider trades

See it live, free until Wednesday morning. No account. No card. Then keep going with a free account.

Shares insiders bought or sold themselves, as filed on Form 4. Grants, option exercises, shares withheld for tax, and 10b5-1 plan sales are left out.

Our top-scored stocks' record: Oct 2021 to Sep 2026, before costs. Recorded live since Sep 9, 2026.

Breakaway publishes impersonal securities research and analytical tools: one formula, the same score for everyone. It is not personalized investment advice, and nothing here is a recommendation to buy or sell any security.

Market data from a licensed vendor. The age of every quote is shown on the page.

May we record how this site is used and measure our ads? Privacy policy

This browser is too old to show this page right. Update it, or open this page in Safari or Chrome.