Updated Jul 16, 2026
Knopper Douglas S has filed 2 SEC Form 4 filings across 1 company in the last 90 days — selling. Lifetime open-market sales: $845K.
Douglas S. Knopper is named in Magnite, Inc. SEC filings as of June 11, 2026. The available context does not specify his exact role or title within Magnite. Magnite is a digital advertising technology company listed on NASDAQ under the ticker MGNI. Additional public information confirming his background or positions beyond these SEC references is not provided in the given context.
| Role | Insider |
|---|---|
| Notability | 15/100 |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-06-17 | MGNI | MAGNITE, INC. | S — Open-market sale | 37.3K | $18.10 | $676K |
| 2026-06-11 | MGNI | MAGNITE, INC. | S — Open-market sale | 10.8K | $15.73 | $169K |
| 2026-06-11 | MGNI | MAGNITE, INC. | A — Grant or award | 13.8K | $0.00 |
Douglas S. Knopper is named in Magnite, Inc. SEC filings as of June 11, 2026. The available context does not specify his exact role or title within Magnite. Magnite is a digital advertising technology company listed on NASDAQ under the ticker MGNI. Additional public information confirming his background or positions beyond these SEC references is not provided in the given conte…
2 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 0 open-market purchases () and 2 open-market sales ($845K) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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