MAGNITE, INC. (MGNI) — Institutional Holders, Q2 2026 (page 2)
312 institutional investment managers reported a MGNI position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $2.7B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 101 to 200. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
MGNI 13F holders ranked 101–200 of 312
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 101 | Dean Capital Management#101 · 121,971 sh | 121,971 | $2.3M | 0.84% | New |
| 102 | WINTON GROUP Ltd#102 · 121,900 sh | 121,900 | $2.3M | 0.07% | New |
| 103 | CenterBook Partners#103 · 117,550 sh | 117,550 | $2.2M | 0.11% | -79.2% |
| 104 | Legal & General Group Plc#104 · 117,006 sh | 117,006 | $2.2M | <0.01% | -4.1% |
| 105 | Penbrook Management#105 · 112,040 sh | 112,040 | $2.1M | — | -0.1% |
| 106 | DARK FOREST CAPITAL MANAGEMENT#106 · 110,985 sh | 110,985 | $2.1M | 0.14% | +849.6% |
| 107 | Dana Investment Advisors#107 · 99,052 sh | 99,052 | $1.9M | 0.05% | -3.3% |
| 108 | PERKINS CAPITAL MANAGEMENT#108 · 98,625 sh | 98,625 | $1.9M | 1.41% | -17.3% |
| 109 | MOODY NATIONAL BANK DIVISION#109 · 97,202 sh | 97,202 | $1.8M | — | +82.3% |
| 110 | Diametric Capital#110 · 96,795 sh | 96,795 | $1.8M | 0.19% | +178.3% |
| 111 | DBA TRADING#111 · 150,000 sh | 150,000 | $1.8M | 0.90% | 0.0% |
| 112 | Cardinal Point Capital Management, ULC#112 · 92,150 sh | 92,150 | $1.7M | — | -2.9% |
| 113 | ALLIANCEBERNSTEIN L.P.#113 · 144,845 sh | 144,845 | $1.7M | <0.01% | -35.1% |
| 114 | CITIGROUP#114 · 87,702 sh | 87,702 | $1.7M | <0.01% | +453.0% |
| 115 | Creative Planning#115 · 86,650 sh | 86,650 | $1.6M | <0.01% | +20.1% |
| 116 | State of New Jersey Common Pension Fund D#116 · 86,600 sh | 86,600 | $1.6M | <0.01% | New |
| 117 | ENVESTNET ASSET MANAGEMENT#117 · 85,619 sh | 85,619 | $1.6M | <0.01% | +9.4% |
| 118 | STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM#118 · 84,633 sh | 84,633 | $1.6M | <0.01% | +121.4% |
| 119 | MetLife Investment Management#119 · 84,157 sh | 84,157 | $1.6M | <0.01% | +8.4% |
| 120 | CITIZENS FINANCIAL GROUP#120 · 82,383 sh | 82,383 | $1.6M | — | New |
| 121 | NANO CAP NEW MILLENNIUM GROWTH FUND L P#121 · 81,500 sh | 81,500 | $1.5M | 1.19% | +16.4% |
| 122 | BNP PARIBAS FINANCIAL MARKETS#122 · 77,960 sh | 77,960 | $1.5M | <0.01% | +147.8% |
| 123 | Radcliffe Capital Management, L.P.#123 · 77,400 sh | 77,400 | $1.5M | 0.11% | -31.1% |
| 124 | Z3 Capital Partners#124 · 76,050 sh | 76,050 | $1.4M | 0.30% | -6.5% |
| 125 | Russell Investments Group, Ltd.#125 · 74,438 sh | 74,438 | $1.4M | <0.01% | +51.6% |
| 126 | STEPHENS#126 · 71,210 sh | 71,210 | $1.4M | 0.02% | -16.7% |
| 127 | MANUFACTURERS LIFE INSURANCE COMPANY, THE#127 · 71,015 sh | 71,015 | $1.3M | <0.01% | +10.0% |
| 128 | STEINBERGANNA WEALTH MANAGEMENT#128 · 69,024 sh | 69,024 | $1.3M | — | 0.0% |
| 129 | PINNACLE ASSOCIATES LTD#129 · 67,917 sh | 67,917 | $1.3M | — | +3.3% |
| 130 | MIRAE ASSET GLOBAL ETFS Ltd.#130 · 66,503 sh | 66,503 | $1.3M | <0.01% | -0.3% |
| 131 | Vident Advisory#131 · 65,771 sh | 65,771 | $1.2M | <0.01% | +3.8% |
| 132 | Zurcher Kantonalbank (Zurich Cantonalbank)#132 · 64,707 sh | 64,707 | $1.2M | <0.01% | 0.0% |
| 133 | GAMCO INVESTORS, ET AL#133 · 63,101 sh | 63,101 | $1.2M | 0.01% | +4.0% |
| 134 | Jupiter Topco#134 · 58,423 sh | 58,423 | $1.1M | <0.01% | — |
| 135 | ARDSLEY ADVISORY PARTNERS#135 · 57,500 sh | 57,500 | $1.1M | 0.11% | -26.3% |
| 136 | Advisory Services Network#136 · 56,014 sh | 56,014 | $1.1M | 0.01% | -3.9% |
| 137 | Vanguard Global Advisers#137 · 55,105 sh | 55,105 | $1.0M | <0.01% | -4.7% |
| 138 | STIFEL FINANCIAL#138 · 53,887 sh | 53,887 | $1.0M | <0.01% | +15.6% |
| 139 | Man Group plc#139 · 53,054 sh | 53,054 | $1.0M | <0.01% | -92.0% |
| 140 | LOS ANGELES CAPITAL MANAGEMENT#140 · 51,989 sh | 51,989 | $986.8K | <0.01% | +47.2% |
| 141 | GABELLI FUNDS#141 · 50,820 sh | 50,820 | $964.6K | <0.01% | +10.9% |
| 142 | NEW YORK STATE COMMON RETIREMENT FUND#142 · 50,725 sh | 50,725 | $962.8K | <0.01% | +38.1% |
| 143 | XTX Topco Ltd#143 · 49,488 sh | 49,488 | $939.3K | 0.01% | -66.2% |
| 144 | ROYAL BANK OF CANADA#144 · 49,182 sh | 49,182 | $934.0K | <0.01% | -7.1% |
| 145 | HSBC PLC#145 · 49,094 sh | 49,094 | $932.7K | <0.01% | +27.9% |
| 146 | Handelsbanken Fonder AB#146 · 47,300 sh | 47,300 | $898.0K | <0.01% | +37.9% |
| 147 | Allspring Global Investments#147 · 43,124 sh | 43,124 | $874.6K | <0.01% | +3.3% |
| 148 | RE ADVISERS#148 · 43,900 sh | 43,900 | $833.2K | 0.02% | 0.0% |
| 149 | Police & Firemen's Retirement System of New Jersey#149 · 42,740 sh | 42,740 | $811.2K | <0.01% | +6.1% |
| 150 | BOOTHBAY FUND MANAGEMENT#150 · 42,705 sh | 42,705 | $810.5K | 0.01% | New |
| 151 | TWO SIGMA INVESTMENTS#151 · 42,659 sh | 42,659 | $809.7K | <0.01% | -89.2% |
| 152 | ANTIPODES PARTNERS Ltd#152 · 41,477 sh | 41,477 | $787.2K | 0.01% | New |
| 153 | Jain Global#153 · 40,506 sh | 40,506 | $768.8K | <0.01% | New |
| 154 | Arizona State Retirement System#154 · 39,834 sh | 39,834 | $756.0K | <0.01% | +1.0% |
| 155 | BROWN ADVISORY#155 · 36,314 sh | 36,314 | $689.2K | <0.01% | +15.2% |
| 156 | D. E. Shaw#156 · 35,719 sh | 35,719 | $677.9K | <0.01% | New |
| 157 | Vanguard Investments Australia, Ltd.#157 · 35,321 sh | 35,321 | $670.4K | <0.01% | 0.0% |
| 158 | Jackson Creek Investment Advisors#158 · 34,494 sh | 34,494 | $666.0K | 0.22% | -0.5% |
| 159 | GREENWOOD CAPITAL ASSOCIATES#159 · 34,891 sh | 34,891 | $662.2K | 0.07% | -5.2% |
| 160 | INTECH INVESTMENT MANAGEMENT#160 · 33,542 sh | 33,542 | $636.6K | <0.01% | -10.3% |
| 161 | IMC-Chicago#161 · 33,508 sh | 33,508 | $636.0K | <0.01% | +20.6% |
| 162 | FULTON BANK, N.A.#162 · 33,041 sh | 33,041 | $627.1K | — | +7.5% |
| 163 | KLP KAPITALFORVALTNING AS#163 · 32,400 sh | 32,400 | $615.0K | <0.01% | 0.0% |
| 164 | Buckland Partners Management#164 · 31,446 sh | 31,446 | $596.8K | 0.29% | 0.0% |
| 165 | State of Alaska, Department of Revenue#165 · 30,334 sh | 30,334 | $575.0K | — | 0.0% |
| 166 | Ronald Blue#166 · 29,638 sh | 29,638 | $562.5K | — | +1.9% |
| 167 | Neo Ivy Capital Management#167 · 29,172 sh | 29,172 | $553.7K | 0.13% | New |
| 168 | MERCER GLOBAL ADVISORS#168 · 28,374 sh | 28,374 | $538.5K | <0.01% | +53.7% |
| 169 | FOX RUN MANAGEMENT, L.L.C.#169 · 26,666 sh | 26,666 | $506.1K | 0.08% | -69.7% |
| 170 | JUPITER ASSET MANAGEMENT LTD#170 · 26,657 sh | 26,657 | $505.9K | <0.01% | -61.6% |
| 171 | SG Americas Securities#171 · 26,567 sh | 26,567 | $504.0K | <0.01% | -53.6% |
| 172 | Linden Thomas Advisory Services#172 · 26,206 sh | 26,206 | $497.4K | — | -0.8% |
| 173 | Pictet Asset Management Holding SA#173 · 25,755 sh | 25,755 | $488.8K | <0.01% | 0.0% |
| 174 | Corient Private Wealth#174 · 25,326 sh | 25,326 | $480.7K | <0.01% | New |
| 175 | Universal- Beteiligungs- und Servicegesellschaft mbH#175 · 24,829 sh | 24,829 | $471.3K | <0.01% | +4.8% |
| 176 | Steward Partners Investment Advisory#176 · 24,705 sh | 24,705 | $468.9K | <0.01% | New |
| 177 | ACADIAN ASSET MANAGEMENT#177 · 24,288 sh | 24,288 | $459.0K | <0.01% | +558.9% |
| 178 | PRUDENTIAL FINANCIAL#178 · 24,162 sh | 24,162 | $458.6K | <0.01% | +7.6% |
| 179 | Mount Yale Investment Advisors#179 · 24,149 sh | 24,149 | $458.3K | <0.01% | +2.1% |
| 180 | State of Wyoming#180 · 22,273 sh | 22,273 | $422.7K | 0.04% | New |
| 181 | Lighthouse Investment Partners#181 · 21,980 sh | 21,980 | $417.2K | 0.01% | New |
| 182 | Amundi#182 · 21,157 sh | 21,157 | $401.6K | <0.01% | -7.3% |
| 183 | CAPTRUST FINANCIAL ADVISORS#183 · 21,151 sh | 21,151 | $401.4K | <0.01% | +13.4% |
| 184 | TWO SIGMA SECURITIES#184 · 21,097 sh | 21,097 | $400.4K | 0.03% | +75.4% |
| 185 | Parkside Financial Bank#185 · 21,076 sh | 21,076 | $400.0K | 0.01% | +94.9% |
| 186 | Verdence Capital Advisors#186 · 20,106 sh | 20,106 | $381.6K | — | -3.8% |
| 187 | Legacy Advisors#187 · 19,967 sh | 19,967 | $379.0K | — | New |
| 188 | Quadrature Capital Ltd#188 · 19,145 sh | 19,145 | $363.4K | <0.01% | New |
| 189 | MANGROVE PARTNERS IM#189 · 19,086 sh | 19,086 | $362.3K | 0.02% | New |
| 190 | ProShare Advisors#190 · 18,909 sh | 18,909 | $358.9K | <0.01% | -8.3% |
| 191 | Coppell Advisory Solutions#191 · 168 sh | 168 | $358.6K | 0.03% | New |
| 192 | MIRABELLA FINANCIAL SERVICES LLP#192 · 18,287 sh | 18,287 | $347.1K | 0.03% | -14.1% |
| 193 | BRC Group#193 · 16,778 sh | 16,778 | $318.4K | 0.07% | New |
| 194 | ELEVATUS WELATH MANAGEMENT#194 · 16,759 sh | 16,759 | $318.1K | — | New |
| 195 | Parallax Volatility Advisers, L.P.#195 · 16,743 sh | 16,743 | $317.8K | <0.01% | +27.5% |
| 196 | AVENIR#196 · 16,715 sh | 16,715 | $317.3K | 0.04% | -5.6% |
| 197 | NORTHWESTERN MUTUAL WEALTH MANAGEMENT#197 · 15,245 sh | 15,245 | $289.4K | <0.01% | +408.2% |
| 198 | WEALTH ENHANCEMENT ADVISORY SERVICES#198 · 14,161 sh | 14,161 | $288.0K | — | New |
| 199 | GREAT WEST LIFE ASSURANCE#199 · 15,140 sh | 15,140 | $287.0K | <0.01% | 0.0% |
| 200 | PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO#200 · 14,986 sh | 14,986 | $284.0K | <0.01% | 0.0% |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.