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MAGNITE (MGNI)
NASDAQ
$23.42-$0.08 (-0.36%)
Price as of Aug 24, 2026 7:00 AM EDT- $3.4BMarket Cap
- -2.73%1-Year Change
- Advertising AgenciesIndustry
MAGNITE (MGNI)
$23.42-$0.08 (-0.36%)
Top Holders
Institutional
Mutual Funds
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
VANGUARD GROUP INC | 10.34% | 14.8M | +148,198 (+1.00%) | Dec 31, 2025 |
BLACKROCK, INC. | 8.88% | 12.7M | +1.1M (+8.30%) | Jun 30, 2026 |
BLACKROCK FUNDING, INC. /DE | 7.10% | 10.2M | +319,005 (+3.14%) | Dec 31, 2024 |
BLACKROCK INC. | 6.77% | 9.7M | -80,477 (-0.83%) | Jun 30, 2024 |
GRANAHAN INVESTMENT MANAGEMENT INC/MA | 5.92% | 8.5M | +1.3M (+15.56%) | Dec 31, 2021 |
N/A | 5.72% | 8.2M | +471,081 (+5.75%) | Jun 30, 2026 |
VANGUARD PORTFOLIO MANAGEMENT LLC | 5.72% | 8.2M | +471,081 (+5.75%) | Jun 30, 2026 |
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
Virtus Strategy Trust | 13.07% | 18.7M | 0 (0.00%) | Sep 30, 2025 |
LORD ABBETT INVESTMENT TRUST | 10.24% | 14.7M | 0 (0.00%) | May 31, 2026 |
VANGUARD INDEX FUNDS | 7.76% | 11.1M | -141,897 (-1.28%) | Mar 31, 2026 |
SENIOR DEBT PORTFOLIO | 4.56% | 6.5M | 0 (0.00%) | Apr 30, 2026 |
VIRTUS ASSET TRUST | 3.99% | 5.7M | 0 (0.00%) | Mar 31, 2026 |
CALAMOS CONVERTIBLE & HIGH INCOME FUND | 3.80% | 5.4M | 0 (0.00%) | Apr 30, 2026 |
SMALLCAP WORLD FUND INC | 3.73% | 5.3M | -6.1M (-115.02%) | Mar 31, 2026 |
Current Ownership Distribution
- Institutions2.2B (56.94%)
- Mutual Funds1.6B (42.55%)
- Insiders19.4M (0.51%)
- Other0 (0.00%)
Insider Transactions
- 0.51% (19.4M)Current InsiderOwnership (%, shares)
- 0Number of InsiderBuying (last 12 months)
- $0.00Amount of InsiderBuying (last 12 months)
- 7Number of InsiderSelling (last 12 months)
- $103.5MAmount of InsiderSelling (last 12 months)
Insider Name & Title | Type | Date
| Transaction Value | Shares | Share Price | Shares After Transactions |
|---|---|---|---|---|---|---|
Buckley Sean Patrick See Remarks | Sell | Aug 18, 2026 | $68,975.00 | 2,759 | $25.00 | 293,060 |
Buckley Sean Patrick See Remarks | Sell | Aug 17, 2026 | $201,068.01 | 8,271 | $24.31 | 295,819 |
Gephart Brian CHIEF ACCOUNTING OFFICER | In Kind | Aug 15, 2026 | $93,701.97 | 3,789 | $24.73 | 102,328 |
BARRETT MICHAEL G. CEO | In Kind | Aug 15, 2026 | $257,290.92 | 10,404 | $24.73 | 392,670 |
Day David CHIEF FINANCIAL OFFICER | In Kind | Aug 15, 2026 | $350,424.10 | 14,170 | $24.73 | 452,861 |
Buonasera David CHIEF TECHNOLOGY OFFICER | In Kind | Aug 15, 2026 | $200,362.46 | 8,102 | $24.73 | 252,734 |
Buckley Sean Patrick See Remarks | In Kind | Aug 15, 2026 | $289,711.95 | 11,715 | $24.73 | 304,090 |
Evans Katie Seitz See Remarks | In Kind | Aug 15, 2026 | $277,074.92 | 11,204 | $24.73 | 485,636 |
Caine Paul | Sell | Aug 10, 2026 | $121,750.00 | 5,000 | $24.35 | 157,401 |
Gephart Brian CHIEF ACCOUNTING OFFICER | Sell | Aug 10, 2026 | $307,981.72 | 12,479 | $24.68 | 106,117 |
Buckley Sean Patrick See Remarks | Exempt | Aug 06, 2026 | $0.00 | 28,703 | $0.00 | 57,405 |
Evans Katie Seitz See Remarks | Exempt | Aug 06, 2026 | $0.00 | 20,000 | $0.00 | 0 |
Buckley Sean Patrick See Remarks | Exempt | Aug 06, 2026 | $398,971.70 | 28,703 | $13.90 | 382,984 |
BARRETT MICHAEL G. CEO | Exempt | Aug 06, 2026 | $0.00 | 293,968 | $0.00 | 0 |
Buckley Sean Patrick See Remarks | Sell | Aug 06, 2026 | $1.2M | 47,942 | $25.09 | 335,042 |
Buonasera David CHIEF TECHNOLOGY OFFICER | Sell | Aug 06, 2026 | $95,254.56 | 4,176 | $22.81 | 264,309 |
Buckley Sean Patrick See Remarks | Sell | Aug 06, 2026 | $442,451.00 | 19,237 | $23.00 | 315,805 |
BARRETT MICHAEL G. CEO | Exempt | Aug 06, 2026 | $1.7M | 293,968 | $5.80 | 697,042 |
Evans Katie Seitz See Remarks | Exempt | Aug 06, 2026 | $103,200.00 | 20,000 | $5.16 | 516,840 |
BARRETT MICHAEL G. CEO | Sell | Aug 06, 2026 | $6.7M | 293,968 | $22.72 | 403,074 |
Buonasera David CHIEF TECHNOLOGY OFFICER | Sell | Aug 06, 2026 | $62,448.00 | 2,602 | $24.00 | 261,707 |
Evans Katie Seitz See Remarks | Sell | Aug 06, 2026 | $480,000.00 | 20,000 | $24.00 | 496,840 |
Buonasera David CHIEF TECHNOLOGY OFFICER | Sell | Aug 06, 2026 | $21,775.00 | 871 | $25.00 | 260,836 |
BARRETT MICHAEL G. CEO | Exempt | Jul 15, 2026 | $0.00 | 38,596 | $0.00 | 293,968 |
BARRETT MICHAEL G. CEO | Exempt | Jul 15, 2026 | $223,856.80 | 38,596 | $5.80 | 441,670 |
BARRETT MICHAEL G. CEO | Sell | Jul 15, 2026 | $785,428.60 | 38,596 | $20.35 | 403,074 |
BARRETT MICHAEL G. CEO | Exempt | Jun 29, 2026 | $0.00 | 75,000 | $0.00 | 332,564 |
BARRETT MICHAEL G. CEO | Exempt | Jun 29, 2026 | $435,000.00 | 75,000 | $5.80 | 478,074 |
BARRETT MICHAEL G. CEO | Sell | Jun 29, 2026 | $1.5M | 75,000 | $19.50 | 403,074 |
Buckley Sean Patrick See Remarks | Sell | Jun 17, 2026 | $365,427.00 | 19,233 | $19.00 | 373,514 |