MGNI
Magnite, Inc.$23.42-0.39 (-1.64%)Prev Close$23.84·MCap$3.41B·P/E22.41·Vol884.8K·Yield—
▲
Buys (12M)
0
$0.00
▼
Sells (12M)
46
$27.63M
◆
Net Activity
Net Seller
$27.63M
●
Active Insiders
14
last 12 mo
Over the past 12 months, insider activity at Magnite, Inc. (MGNI) has been exclusively selling, with 0 insider purchases totaling $0.00 and 46 insider sales totaling $27.63M. The most recent insider transaction was by Caine Paul (director), who sold $117.7K worth of shares on Sep 11, 2026. Magnite, Inc. operates in the Communication Services sector, within the Advertising Agencies industry, with a market cap of $3.41B.
MGNI Insider Trading Activity
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Sep 11, 2026 | Caine Paul | director | Sell | 5,000 | $23.53 | $117.7K | 144,901 |
| Sep 11, 2026 | Evans Katie Seitz | officer: See Remarks | Sell | 13,997 | $24.00 | $335.9K | 441,800 |
| Sep 11, 2026 | Saltz Aaron | officer: CHIEF LEGAL OFFICER | Sell | 40,000 | $23.41 | $936.4K | 224,389 |
| Sep 10, 2026 | Evans Katie Seitz | officer: See Remarks | Sell | 43,385 | $23.59 | $1.02M | 466,897 |
| Sep 3, 2026 | Buonasera David | officer: CHIEF TECHNOLOGY OFFICER | Sell | 6,414 | $23.68 | $151.9K | 247,363 |
| Aug 28, 2026 | Harden Sarah Patricia | director | Sell | 48,986 | $23.57 | $1.15M | 133,187-27% |
| Aug 18, 2026 | Buckley Sean Patrick | officer: See Remarks | Sell | 11,030 | $24.48 | $270.0K | 295,819 |
| Aug 18, 2026 | Caine Paul | director | Sell | 7,500 | $25.00 | $187.5K | 149,901 |
| Aug 12, 2026 | Gephart Brian | officer: CHIEF ACCOUNTING OFFICER | Sell | 12,479 | $24.68 | $308.0K | 106,117 |
| Aug 12, 2026 | Caine Paul | director | Sell | 5,000 | $24.35 | $121.8K | 157,401 |
| Aug 12, 2026 | Lam Rachel | director | Sell | 10,000 | $24.16 | $241.6K | 230,620 |
| Aug 7, 2026 | Evans Katie Seitz | officer: See Remarks | Sell | 20,000 | $24.00 | $480.0K | 496,840 |
| Aug 7, 2026 | Buonasera David | officer: CHIEF TECHNOLOGY OFFICER | Sell | 7,649 | $23.46 | $179.5K | 264,309 |
| Aug 7, 2026 | BARRETT MICHAEL G. | director, officer: CEO | Sell | 293,968 | $22.72 | $6.68M | 403,074-42% |
| Aug 7, 2026 | Buckley Sean Patrick | officer: See Remarks | Sell | 67,179 | $24.49 | $1.65M | 335,042 |
| Aug 7, 2026 | Knopper Douglas S | director | Sell | 37,337 | $22.72 | $848.3K | 88,473-30% |
| Jul 17, 2026 | BARRETT MICHAEL G. | director, officer: CEO | Sell | 38,596 | $20.35 | $785.4K | 403,074 |
| Jul 14, 2026 | Caine Paul | director | Sell | 5,000 | $20.64 | $103.2K | 162,401 |
| Jul 9, 2026 | Buckley Sean Patrick | officer: See Remarks | Sell | 19,233 | $21.03 | $404.5K | 354,281 |
| Jul 9, 2026 | Buonasera David | officer: CHIEF TECHNOLOGY OFFICER | Sell | 1,224 | $21.00 | $25.7K | 268,485 |
| Jul 2, 2026 | Buonasera David | officer: CHIEF TECHNOLOGY OFFICER | Sell | 9,376 | $20.00 | $187.5K | 269,709 |
| Jul 1, 2026 | BARRETT MICHAEL G. | director, officer: CEO | Sell | 75,000 | $19.50 | $1.46M | 403,074 |
| Jun 18, 2026 | Buckley Sean Patrick | officer: See Remarks | Sell | 19,233 | $19.00 | $365.4K | 373,514 |
| Jun 17, 2026 | BARRETT MICHAEL G. | director, officer: CEO | Sell | 278,596 | $16.92 | $4.71M | 403,074-41% |
| Jun 17, 2026 | Knopper Douglas S | director | Sell | 37,337 | $18.10 | $675.8K | 125,810 |
| Jun 17, 2026 | Buonasera David | officer: CHIEF TECHNOLOGY OFFICER | Sell | 13,699 | $18.03 | $246.9K | 291,727 |
| Jun 10, 2026 | PEARSON DAVID T. | director | Sell | 10,766 | $15.65 | $168.5K | 79,001 |
| Jun 10, 2026 | Knopper Douglas S | director | Sell | 10,766 | $15.73 | $169.3K | 163,147 |
| May 21, 2026 | Spillane Robert F | director | Sell | 10,000 | $13.33 | $133.3K | 43,917 |
| Feb 18, 2026 | Buckley Sean Patrick | President, Revenue | Sell | 26,942 | $11.70 | $315.2K | 0 |
| Feb 18, 2026 | Saltz Aaron | CHIEF LEGAL OFFICER | Sell | 12,761 | $11.70 | $149.3K | 0 |
| Feb 15, 2026 | BARRETT MICHAEL G. | CEO | Sell | 23,549 | $11.70 | $275.5K | 0 |
| Feb 15, 2026 | Buonasera David | CHIEF TECHNOLOGY OFFICER | Sell | 17,137 | $11.70 | $200.5K | 0 |
| Feb 15, 2026 | Day David | CHIEF FINANCIAL OFFICER | Sell | 30,617 | $11.70 | $358.2K | 0 |
| Feb 15, 2026 | Evans Katie Seitz | President, Operations | Sell | 27,428 | $11.70 | $320.9K | 0 |
| Feb 15, 2026 | Gephart Brian | CHIEF ACCOUNTING OFFICER | Sell | 6,149 | $11.70 | $71.9K | 0 |
| Feb 15, 2026 | Soroca Adam Lee | CHIEF PRODUCT OFFICER | Sell | 40,462 | $11.86 | $479.9K | 0 |
| Dec 19, 2025 | Soroca Adam Lee | CHIEF PRODUCT OFFICER | Sell | 16,656 | $17.00 | $283.2K | 326,114 |
| Nov 26, 2025 | Buckley Sean Patrick | President, Revenue | Sell | 2,213 | $14.50 | $32.1K | 268,912 |
| Nov 21, 2025 | Spillane Robert F | Sell | 12,500 | $14.22 | $177.8K | 53,917 | |
| Nov 18, 2025 | Buckley Sean Patrick | President, Revenue | Sell | 4,426 | $13.36 | $59.1K | 271,125 |
| Nov 18, 2025 | Soroca Adam Lee | CHIEF PRODUCT OFFICER | Sell | 10,857 | $13.23 | $143.6K | 326,114 |
| Oct 28, 2025 | Caine Paul | Sell | 5,000 | $20.00 | $100.0K | 153,603 | |
| Sep 19, 2025 | Caine Paul | Sell | 7,500 | $25.00 | $187.5K | 158,603 | |
| Sep 19, 2025 | Saltz Aaron | CHIEF LEGAL OFFICER | Sell | 8,522 | $24.50 | $208.8K | 215,079 |
| Sep 17, 2025 | Saltz Aaron | CHIEF LEGAL OFFICER | Sell | 6,180 | $23.94 | $147.9K | 223,601 |
| Sep 12, 2025 | Caine Paul | Sell | 5,000 | $23.60 | $118.0K | 167,292 | |
| Sep 10, 2025 | Buckley Sean Patrick | President, Revenue | Sell | 40,000 | $25.09 | $1.00M | 307,193 |
| Sep 5, 2025 | Gephart Brian | CHIEF ACCOUNTING OFFICER | Sell | 27,671 | $24.71 | $683.8K | 92,898 |
| Sep 4, 2025 | Buonasera David | CHIEF TECHNOLOGY OFFICER | Sell | 2,950 | $25.37 | $74.8K | 238,629 |
Showing 1–50 of 224
1 / 5
MGNI Insider Buying Activity
The following table shows recent insider purchases of Magnite, Inc. (MGNI) stock reported via SEC Form 4 filings.
No insider buying activity found for MGNI in the last 12 months.
MGNI Insider Selling Activity
The following table shows recent insider sales of Magnite, Inc. (MGNI) stock reported via SEC Form 4 filings.
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Sep 11, 2026 | Caine Paul | director | Sell | 5,000 | $23.53 | $117.7K | 144,901 |
| Sep 11, 2026 | Evans Katie Seitz | officer: See Remarks | Sell | 13,997 | $24.00 | $335.9K | 441,800 |
| Sep 11, 2026 | Saltz Aaron | officer: CHIEF LEGAL OFFICER | Sell | 40,000 | $23.41 | $936.4K | 224,389 |
| Sep 10, 2026 | Evans Katie Seitz | officer: See Remarks | Sell | 43,385 | $23.59 | $1.02M | 466,897 |
| Sep 3, 2026 | Buonasera David | officer: CHIEF TECHNOLOGY OFFICER | Sell | 6,414 | $23.68 | $151.9K | 247,363 |
| Aug 28, 2026 | Harden Sarah Patricia | director | Sell | 48,986 | $23.57 | $1.15M | 133,187-27% |
| Aug 18, 2026 | Buckley Sean Patrick | officer: See Remarks | Sell | 11,030 | $24.48 | $270.0K | 295,819 |
| Aug 18, 2026 | Caine Paul | director | Sell | 7,500 | $25.00 | $187.5K | 149,901 |
| Aug 12, 2026 | Gephart Brian | officer: CHIEF ACCOUNTING OFFICER | Sell | 12,479 | $24.68 | $308.0K | 106,117 |
| Aug 12, 2026 | Caine Paul | director | Sell | 5,000 | $24.35 | $121.8K | 157,401 |
| Aug 12, 2026 | Lam Rachel | director | Sell | 10,000 | $24.16 | $241.6K | 230,620 |
| Aug 7, 2026 | Evans Katie Seitz | officer: See Remarks | Sell | 20,000 | $24.00 | $480.0K | 496,840 |
| Aug 7, 2026 | Buonasera David | officer: CHIEF TECHNOLOGY OFFICER | Sell | 7,649 | $23.46 | $179.5K | 264,309 |
| Aug 7, 2026 | BARRETT MICHAEL G. | director, officer: CEO | Sell | 293,968 | $22.72 | $6.68M | 403,074-42% |
| Aug 7, 2026 | Buckley Sean Patrick | officer: See Remarks | Sell | 67,179 | $24.49 | $1.65M | 335,042 |
| Aug 7, 2026 | Knopper Douglas S | director | Sell | 37,337 | $22.72 | $848.3K | 88,473-30% |
| Jul 17, 2026 | BARRETT MICHAEL G. | director, officer: CEO | Sell | 38,596 | $20.35 | $785.4K | 403,074 |
| Jul 14, 2026 | Caine Paul | director | Sell | 5,000 | $20.64 | $103.2K | 162,401 |
| Jul 9, 2026 | Buckley Sean Patrick | officer: See Remarks | Sell | 19,233 | $21.03 | $404.5K | 354,281 |
| Jul 9, 2026 | Buonasera David | officer: CHIEF TECHNOLOGY OFFICER | Sell | 1,224 | $21.00 | $25.7K | 268,485 |
| Jul 2, 2026 | Buonasera David | officer: CHIEF TECHNOLOGY OFFICER | Sell | 9,376 | $20.00 | $187.5K | 269,709 |
| Jul 1, 2026 | BARRETT MICHAEL G. | director, officer: CEO | Sell | 75,000 | $19.50 | $1.46M | 403,074 |
| Jun 18, 2026 | Buckley Sean Patrick | officer: See Remarks | Sell | 19,233 | $19.00 | $365.4K | 373,514 |
| Jun 17, 2026 | BARRETT MICHAEL G. | director, officer: CEO | Sell | 278,596 | $16.92 | $4.71M | 403,074-41% |
| Jun 17, 2026 | Knopper Douglas S | director | Sell | 37,337 | $18.10 | $675.8K | 125,810 |
| Jun 17, 2026 | Buonasera David | officer: CHIEF TECHNOLOGY OFFICER | Sell | 13,699 | $18.03 | $246.9K | 291,727 |
| Jun 10, 2026 | PEARSON DAVID T. | director | Sell | 10,766 | $15.65 | $168.5K | 79,001 |
| Jun 10, 2026 | Knopper Douglas S | director | Sell | 10,766 | $15.73 | $169.3K | 163,147 |
| May 21, 2026 | Spillane Robert F | director | Sell | 10,000 | $13.33 | $133.3K | 43,917 |
| Feb 18, 2026 | Buckley Sean Patrick | President, Revenue | Sell | 26,942 | $11.70 | $315.2K | 0 |
| Feb 18, 2026 | Saltz Aaron | CHIEF LEGAL OFFICER | Sell | 12,761 | $11.70 | $149.3K | 0 |
| Feb 15, 2026 | BARRETT MICHAEL G. | CEO | Sell | 23,549 | $11.70 | $275.5K | 0 |
| Feb 15, 2026 | Buonasera David | CHIEF TECHNOLOGY OFFICER | Sell | 17,137 | $11.70 | $200.5K | 0 |
| Feb 15, 2026 | Day David | CHIEF FINANCIAL OFFICER | Sell | 30,617 | $11.70 | $358.2K | 0 |
| Feb 15, 2026 | Evans Katie Seitz | President, Operations | Sell | 27,428 | $11.70 | $320.9K | 0 |
| Feb 15, 2026 | Gephart Brian | CHIEF ACCOUNTING OFFICER | Sell | 6,149 | $11.70 | $71.9K | 0 |
| Feb 15, 2026 | Soroca Adam Lee | CHIEF PRODUCT OFFICER | Sell | 40,462 | $11.86 | $479.9K | 0 |
| Dec 19, 2025 | Soroca Adam Lee | CHIEF PRODUCT OFFICER | Sell | 16,656 | $17.00 | $283.2K | 326,114 |
| Nov 26, 2025 | Buckley Sean Patrick | President, Revenue | Sell | 2,213 | $14.50 | $32.1K | 268,912 |
| Nov 21, 2025 | Spillane Robert F | Sell | 12,500 | $14.22 | $177.8K | 53,917 | |
| Nov 18, 2025 | Buckley Sean Patrick | President, Revenue | Sell | 4,426 | $13.36 | $59.1K | 271,125 |
| Nov 18, 2025 | Soroca Adam Lee | CHIEF PRODUCT OFFICER | Sell | 10,857 | $13.23 | $143.6K | 326,114 |
| Oct 28, 2025 | Caine Paul | Sell | 5,000 | $20.00 | $100.0K | 153,603 | |
| Sep 19, 2025 | Caine Paul | Sell | 7,500 | $25.00 | $187.5K | 158,603 | |
| Sep 19, 2025 | Saltz Aaron | CHIEF LEGAL OFFICER | Sell | 8,522 | $24.50 | $208.8K | 215,079 |
| Sep 17, 2025 | Saltz Aaron | CHIEF LEGAL OFFICER | Sell | 6,180 | $23.94 | $147.9K | 223,601 |
| Sep 12, 2025 | Caine Paul | Sell | 5,000 | $23.60 | $118.0K | 167,292 | |
| Sep 10, 2025 | Buckley Sean Patrick | President, Revenue | Sell | 40,000 | $25.09 | $1.00M | 307,193 |
| Sep 5, 2025 | Gephart Brian | CHIEF ACCOUNTING OFFICER | Sell | 27,671 | $24.71 | $683.8K | 92,898 |
| Sep 4, 2025 | Buonasera David | CHIEF TECHNOLOGY OFFICER | Sell | 2,950 | $25.37 | $74.8K | 238,629 |
MGNI Insiders
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