CIK 0001595974 · Large accelerated filer
MAGNITE, INC.
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- MGNI
- Exchange
- Nasdaq
- Industry
- Services-Computer Programming, Data Processing, Etc.
- FY end
- Dec 31
- Incorporated
- DE
- Entity type
- operating
- EIN
- 208881738
- Phone
- 212-243-2769
- Business address
- 1250 BROADWAY, 9TH FLOOR, NEW YORK, NY
- Former names
- RUBICON PROJECT, INC.
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $9,462,259
- in 21 filings, $6.0M under 10b5-1 plans
Net −$9,462,259. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Who's trading
90 days
Reading 100 more Form 4s from the SEC; this list fills in as they're read.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-07-15 | BARRETT MICHAEL G. CEO | Option exercise · Employee Stock Option (Right to Buy) 10b5-1 | −38,596 | 293,968 | ||
| 2026-07-10 | Caine Paul Director | Sale 10b5-1 | −5,000 | $20.64 | $103K | 162,401 |
| 2026-07-07 | Buonasera David CHIEF TECHNOLOGY OFFICER | Sale 10b5-1 | −1,224 | $21.00 | $26K | 268,485 |
| 2026-07-07 | Buckley Sean Patrick See Remarks | Sale 10b5-1 | −19,233 | $21.03 | $404K | 354,281 |
| 2026-07-01 | Buonasera David CHIEF TECHNOLOGY OFFICER | Sale 10b5-1 | −9,376 | $20.00 | $188K | 269,709 |
| 2026-06-29 | BARRETT MICHAEL G. CEO | Option exercise 10b5-1 | +75,000 | $5.80 | $435K | 478,074 |
| 2026-06-29 | BARRETT MICHAEL G. CEO | Sale 10b5-1 | −75,000 | $19.50 | $1.5M | 403,074 |
| 2026-06-29 | BARRETT MICHAEL G. CEO | Option exercise · Employee Stock Option (Right to Buy) 10b5-1 | −75,000 | 332,564 | ||
| 2026-06-17 | Buckley Sean Patrick See Remarks | Sale 10b5-1 | −19,233 | $19.00 | $365K | 373,514 |
| 2026-06-17 | Buonasera David CHIEF TECHNOLOGY OFFICER | Sale 10b5-1 | −1,409 | $19.00 | $27K | 279,085 |
| 2026-06-16 | Knopper Douglas S Director | Sale 10b5-1 | −37,337 | $18.10 | $676K | 125,810 |
| 2026-06-16 | Buonasera David CHIEF TECHNOLOGY OFFICER | Sale 10b5-1 | −11,233 | $18.00 | $202K | 280,494 |
| 2026-06-16 | BARRETT MICHAEL G. CEO | Option exercise 10b5-1 | +100,000 | $5.80 | $580K | 503,074 |
| 2026-06-16 | BARRETT MICHAEL G. CEO | Sale 10b5-1 | −100,000 | $17.50 | $1.8M | 403,074 |
| 2026-06-16 | BARRETT MICHAEL G. CEO | Option exercise · Employee Stock Option (Right to Buy) 10b5-1 | −100,000 | 407,564 | ||
| 2026-06-15 | Buonasera David CHIEF TECHNOLOGY OFFICER | Sale 10b5-1 | −1,057 | $17.00 | $18K | 291,727 |
| 2026-06-15 | BARRETT MICHAEL G. CEO | Option exercise 10b5-1 | +178,596 | $5.80 | $1.0M | 581,670 |
| 2026-06-15 | BARRETT MICHAEL G. CEO | Sale 10b5-1 | −178,596 | $16.59 | $3.0M | 403,074 |
| 2026-06-15 | BARRETT MICHAEL G. CEO | Option exercise · Employee Stock Option (Right to Buy) 10b5-1 | −178,596 | 507,564 | ||
| 2026-06-10 | Knopper Douglas S Director | Sale 10b5-1 | −10,766 | $15.73 | $169K | 163,147 |
Page 4 of 9 · 168 trades