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MAGNITE (MGNI)
NASDAQ
$19.82+$0.25 (+1.25%)
Price as of Aug 04, 2026 4:46 AM EDT- $2.8BMarket Cap
- -13.71%1-Year Change
- Advertising AgenciesIndustry
MAGNITE (MGNI)
$19.82+$0.25 (+1.25%)
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. | 8.14% | 11.7M | +64,247 (+0.55%) | Mar 31, 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 |
WELLINGTON MANAGEMENT GROUP LLP | 6.42% | 9.2M | +561,839 (+6.11%) | Mar 31, 2026 |
GRANAHAN INVESTMENT MANAGEMENT INC/MA | 5.92% | 8.5M | +1.3M (+15.56%) | Dec 31, 2021 |
CAPITAL RESEARCH GLOBAL INVESTORS | 3.51% | 5.0M | -7.9M (-157.36%) | Mar 31, 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
- Institutions2.0B (55.28%)
- Mutual Funds1.6B (44.18%)
- Insiders19.7M (0.54%)
- Other0 (0.00%)
Insider Transactions
- 0.54% (19.7M)Current InsiderOwnership (%, shares)
- 0Number of InsiderBuying (last 12 months)
- $0.00Amount of InsiderBuying (last 12 months)
- 4Number of InsiderSelling (last 12 months)
- $36.7MAmount of InsiderSelling (last 12 months)
Insider Name & Title | Type | Date
| Transaction Value | Shares | Share Price | Shares After Transactions |
|---|---|---|---|---|---|---|
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 |
Buonasera David CHIEF TECHNOLOGY OFFICER | Sell | Jun 17, 2026 | $26,771.00 | 1,409 | $19.00 | 279,085 |
Buonasera David CHIEF TECHNOLOGY OFFICER | Sell | Jun 16, 2026 | $202,194.00 | 11,233 | $18.00 | 280,494 |
Buonasera David CHIEF TECHNOLOGY OFFICER | Sell | Jun 15, 2026 | $17,969.00 | 1,057 | $17.00 | 291,727 |
PEARSON DAVID T. | Sell | Jun 10, 2026 | $168,487.90 | 10,766 | $15.65 | 79,001 |
Caine Paul | Award | Jun 08, 2026 | $0.00 | 13,798 | $0.00 | 167,401 |
Harden Sarah Patricia | Award | Jun 08, 2026 | $0.00 | 13,798 | $0.00 | 163,737 |
Yu Diane | Award | Jun 08, 2026 | $0.00 | 13,798 | $0.00 | 81,279 |
Rossman James | Award | Jun 08, 2026 | $0.00 | 13,798 | $0.00 | 107,477 |
Lam Rachel | Award | Jun 08, 2026 | $0.00 | 13,798 | $0.00 | 240,620 |
PEARSON DAVID T. | Award | Jun 08, 2026 | $0.00 | 13,798 | $0.00 | 89,767 |