MBX Biosciences, Inc. (MBX) — Institutional Holders, Q2 2026 (page 2)
173 institutional investment managers reported a MBX position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $3.1B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 101 to 173. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
MBX 13F holders ranked 101–173 of 173
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 101 | Police & Firemen's Retirement System of New Jersey#101 · 9,154 sh | 9,154 | $505.3K | <0.01% | +21.7% |
| 102 | PROFUND ADVISORS#102 · 8,812 sh | 8,812 | $486.4K | 0.01% | +5.1% |
| 103 | Brevan Howard Capital Management#103 · 8,602 sh | 8,602 | $474.8K | <0.01% | New |
| 104 | ACT CAPITAL MANAGEMENT#104 · 8,000 sh | 8,000 | $441.6K | 0.29% | -11.1% |
| 105 | DnB Asset Management AS#105 · 7,793 sh | 7,793 | $430.2K | <0.01% | New |
| 106 | AXQ CAPITAL#106 · 7,757 sh | 7,757 | $428.2K | 0.05% | New |
| 107 | State of New Jersey Common Pension Fund D#107 · 6,913 sh | 6,913 | $381.6K | <0.01% | -9.9% |
| 108 | Quantinno Capital Management#108 · 6,497 sh | 6,497 | $358.6K | <0.01% | New |
| 109 | Rafferty Asset Management#109 · 6,410 sh | 6,410 | $353.8K | <0.01% | New |
| 110 | XTX Topco Ltd#110 · 6,392 sh | 6,392 | $352.8K | <0.01% | -88.0% |
| 111 | SG Americas Securities#111 · 6,245 sh | 6,245 | $345.0K | <0.01% | +84.4% |
| 112 | Vanguard Investments Australia, Ltd.#112 · 6,103 sh | 6,103 | $336.9K | <0.01% | 0.0% |
| 113 | Seven Fleet Capital Management#113 · 6,000 sh | 6,000 | $331.2K | 0.05% | New |
| 114 | INTECH INVESTMENT MANAGEMENT#114 · 5,951 sh | 5,951 | $328.5K | <0.01% | -13.0% |
| 115 | Arizona State Retirement System#115 · 5,899 sh | 5,899 | $325.6K | <0.01% | New |
| 116 | SEI INVESTMENTS#116 · 5,868 sh | 5,868 | $323.9K | <0.01% | -34.7% |
| 117 | ProShare Advisors#117 · 5,622 sh | 5,622 | $310.3K | <0.01% | New |
| 118 | Blackstone#118 · 5,533 sh | 5,533 | $305.4K | <0.01% | New |
| 119 | GROUP ONE TRADING, L.P.#119 · 5,231 sh | 5,231 | $288.8K | <0.01% | -16.3% |
| 120 | CANADA PENSION PLAN INVESTMENT BOARD#120 · 5,200 sh | 5,200 | $287.0K | <0.01% | -52.3% |
| 121 | Toroso Investments#121 · 5,010 sh | 5,010 | $276.6K | <0.01% | -43.6% |
| 122 | TEMA ETFS#122 · 5,010 sh | 5,010 | $276.6K | — | -43.6% |
| 123 | KLP KAPITALFORVALTNING AS#123 · 4,900 sh | 4,900 | $270.5K | <0.01% | 0.0% |
| 124 | Verdad Advisers#124 · 4,574 sh | 4,574 | $252.5K | 0.24% | New |
| 125 | Pictet Asset Management Holding SA#125 · 4,098 sh | 4,098 | $226.2K | <0.01% | New |
| 126 | Goelzer Investment Management#126 · 4,000 sh | 4,000 | $220.8K | — | -97.6% |
| 127 | Quantbot Technologies#127 · 3,855 sh | 3,855 | $212.8K | <0.01% | New |
| 128 | Susquehanna Portfolio Strategies#128 · 3,800 sh | 3,800 | $209.8K | <0.01% | New |
| 129 | Tower Research Capital (TRC)#129 · 3,651 sh | 3,651 | $201.5K | <0.01% | +158.8% |
| 130 | Ameritas Investment Partners#130 · 2,817 sh | 2,817 | $155.5K | <0.01% | +21.8% |
| 131 | Mirae Asset Global Investments , Ltd.#131 · 2,129 sh | 2,129 | $117.5K | <0.01% | -9.1% |
| 132 | Zurcher Kantonalbank (Zurich Cantonalbank)#132 · 2,086 sh | 2,086 | $115.1K | <0.01% | +343.8% |
| 133 | NISA INVESTMENT ADVISORS#133 · 2,013 sh | 2,013 | $111.1K | — | +26.4% |
| 134 | STRS OHIO#134 · 2,000 sh | 2,000 | $110.4K | <0.01% | +25.0% |
| 135 | ROYAL BANK OF CANADA#135 · 1,464 sh | 1,464 | $81.0K | 0.00% | +94.9% |
| 136 | SIMPLEX TRADING#136 · 1,327 sh | 1,327 | $73.3K | 0.00% | +1.5% |
| 137 | State of Wyoming#137 · 1,055 sh | 1,055 | $58.2K | <0.01% | New |
| 138 | GF FUND MANAGEMENT LTD.#138 · 952 sh | 952 | $52.5K | — | -5.6% |
| 139 | KBC Group NV#139 · 810 sh | 810 | $45.0K | — | 0.0% |
| 140 | Kemnay Advisory Services#140 · 321 sh | 321 | $17.7K | <0.01% | New |
| 141 | GAMMA Investing#141 · 304 sh | 304 | $16.8K | — | +1.7% |
| 142 | OSAIC#142 · 282 sh | 282 | $15.6K | 0.00% | +4.8% |
| 143 | SRS Capital Advisors#143 · 279 sh | 279 | $15.4K | <0.01% | New |
| 144 | Rockefeller Capital Management L.P.#144 · 224 sh | 224 | $12.4K | 0.00% | -93.1% |
| 145 | PNC FINANCIAL SERVICES GROUP#145 · 207 sh | 207 | $11.4K | 0.00% | 0.0% |
| 146 | FIL Ltd#146 · 178 sh | 178 | $9.8K | 0.00% | 0.0% |
| 147 | Aster Capital Management (DIFC) Ltd#147 · 172 sh | 172 | $9.5K | <0.01% | New |
| 148 | Integrated Wealth Concepts#148 · 171 sh | 171 | $9.4K | 0.00% | New |
| 149 | Physician Wealth Advisors#149 · 121 sh | 121 | $6.7K | — | +11.0% |
| 150 | Sterling Capital Management#150 · 109 sh | 109 | $6.0K | — | -88.5% |
| 151 | US BANCORP \DE\#151 · 108 sh | 108 | $6.0K | 0.00% | -62.0% |
| 152 | J.Safra Asset Management#152 · 85 sh | 85 | $4.7K | <0.01% | New |
| 153 | Parallel Advisors#153 · 79 sh | 79 | $4.4K | <0.01% | +29.5% |
| 154 | SIGNATUREFD#154 · 78 sh | 78 | $4.3K | — | -56.4% |
| 155 | JONES FINANCIAL COMPANIES LLLP#155 · 80 sh | 80 | $4.2K | 0.00% | 0.0% |
| 156 | Keating Financial Advisory Services#156 · 54 sh | 54 | $3.0K | <0.01% | +237.5% |
| 157 | Larson Financial Group#157 · 49 sh | 49 | $2.7K | <0.01% | 0.0% |
| 158 | Allworth Financial#158 · 48 sh | 48 | $2.6K | 0.00% | -31.4% |
| 159 | EverSource Wealth Advisors#159 · 48 sh | 48 | $2.6K | <0.01% | -93.2% |
| 160 | ROTHSCHILD INVESTMENT#160 · 39 sh | 39 | $2.2K | <0.01% | +62.5% |
| 161 | Bare Financial Services#161 · 34 sh | 34 | $1.9K | <0.01% | New |
| 162 | Cornerstone Financial Management#162 · 34 sh | 34 | $1.9K | <0.01% | 0.0% |
| 163 | Global Retirement Partners#163 · 19 sh | 19 | $1.0K | 0.00% | — |
| 164 | Fortitude Family Office#164 · 19 sh | 19 | $1.0K | — | 0.0% |
| 165 | Covestor Ltd#165 · 10 sh | 10 | $1.0K | <0.01% | +233.3% |
| 166 | Quarry#166 · 18 sh | 18 | $994.00 | <0.01% | New |
| 167 | Essential Partners#167 · 15 sh | 15 | $828.00 | — | 0.0% |
| 168 | Silver Grove Financial Group#168 · 13 sh | 13 | $718.00 | <0.01% | New |
| 169 | NATIONAL BANK OF CANADA#169 · 11 sh | 11 | $607.00 | 0.00% | New |
| 170 | Farther Finance Advisors#170 · 9 sh | 9 | $497.00 | — | 0.0% |
| 171 | SJS Investment Consulting#171 · 2 sh | 2 | $111.00 | — | New |
| 172 | Hughes Financial Services#172 · 1 sh | 1 | $55.00 | 0.00% | New |
| 173 | CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM#173 · 23,376 sh | 23,376 | — | — | +2.7% |
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.