Security record
MIRM
Mirum Pharmaceuticals, Inc. · Healthcare · Biotechnology
106Tracked holders
+2Δ holders
35.68MShares held
$4.18BReported value
+9New positions
−7Exits
Momentum inputs (comparable managers):
holder breadth +1.9% ·
share flow +9.7% ·
net new positions +1.9%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 106 | +2 | 35.68M | $4.18B | +9 | −7 |
| Q1 2026 | 107 | +6 | 39.52M | $3.63B | +12 | −7 |
| Q4 2025 | 102 | +1 | 36.05M | $2.83B | +2 | — |
| Q3 2025 | 20 | 0 | 17.64M | $1.29B | — | — |
| Q2 2025 | 17 | +1 | 13.61M | $692.65M | +2 | −1 |
| Q1 2025 | 13 | +1 | 7.45M | $335.67M | +2 | −1 |
| Q4 2024 | 12 | 0 | 6.63M | $274.04M | +1 | −1 |
| Q3 2024 | 11 | +2 | 4.84M | $188.84M | +2 | — |
| Q2 2024 | 9 | — | 4.39M | $149.94M | — | — |
Who holds it · Q2 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 4.39M | +14.1% | $513.94M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 4.39M | +14.1% | $513.94M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 4.39M | +14.1% | $513.94M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 4.39M | +14.1% | $513.94M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 4.39M | +14.1% | $513.94M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 4.39M | +14.1% | $513.94M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 4.39M | +14.1% | $513.94M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 4.39M | +14.1% | $513.94M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 4.39M | +14.1% | $513.94M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 4.39M | +14.1% | $513.94M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 4.39M | +14.1% | $513.94M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 4.39M | +14.1% | $513.94M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 4.39M | +14.1% | $513.94M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 4.39M | +14.1% | $513.94M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 4.39M | +14.1% | $513.94M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 16 | BlackRock ✦ (passive) | 4.39M | +14.1% | $513.94M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 17 | Fidelity (FMR) ✦ | 3.67M | +86.8% | $429.68M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 18 | Fidelity (FMR) ✦ | 3.67M | +86.8% | $429.68M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 19 | Fidelity (FMR) ✦ | 3.67M | +86.8% | $429.68M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 20 | Fidelity (FMR) ✦ | 3.67M | +86.8% | $429.68M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 21 | Fidelity (FMR) ✦ | 3.67M | +86.8% | $429.68M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 22 | Fidelity (FMR) ✦ | 3.67M | +86.8% | $429.68M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 23 | T. Rowe Price ✦ | 2.66M | +54.6% | $310.89M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 24 | T. Rowe Price ✦ | 2.66M | +54.6% | $310.89M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 25 | Vanguard Capital Management Llc | 2.25M | -6.7% | $263.89M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 26 | State Street Global Advisors ✦ (passive) | 2.17M | +11.6% | $254.12M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 27 | Geode Capital Management ✦ (passive) | 1.39M | +10.6% | $163.21M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 28 | Geode Capital Management ✦ (passive) | 1.39M | +10.6% | $163.21M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 29 | Invesco Ltd. | 1.36M | +378.2% | $159.69M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 30 | Invesco Ltd. | 1.36M | +378.2% | $159.69M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 31 | Invesco Ltd. | 1.36M | +378.2% | $159.69M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 32 | Invesco Ltd. | 1.36M | +378.2% | $159.69M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 33 | Invesco Ltd. | 1.36M | +378.2% | $159.69M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 34 | Invesco Ltd. | 1.36M | +378.2% | $159.69M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 35 | Invesco Ltd. | 1.36M | +378.2% | $159.69M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 36 | Wellington Management ✦ | 1.31M | -1.9% | $153.36M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 37 | Wellington Management ✦ | 1.31M | -1.9% | $153.36M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 38 | Wellington Management ✦ | 1.31M | -1.9% | $153.36M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 39 | Wellington Management ✦ | 1.31M | -1.9% | $153.36M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 40 | Wellington Management ✦ | 1.31M | -1.9% | $153.36M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 41 | Wellington Management ✦ | 1.31M | -1.9% | $153.36M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 42 | Wellington Management ✦ | 1.31M | -1.9% | $153.36M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 43 | Capital World Investors ✦ | 1.15M | +59.2% | $135.04M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 44 | Franklin Resources Inc | 1.15M | +61.3% | $134.95M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 45 | Franklin Resources Inc | 1.15M | +61.3% | $134.95M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 46 | Franklin Resources Inc | 1.15M | +61.3% | $134.95M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 47 | Franklin Resources Inc | 1.15M | +61.3% | $134.95M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 48 | Nomura Asset Management… | 752.04K | +85.5% | $88.04M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 49 | Ameriprise Financial Inc | 726.69K | +231.4% | $85.07M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 50 | Ameriprise Financial Inc | 726.69K | +231.4% | $85.07M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 51 | Ameriprise Financial Inc | 726.69K | +231.4% | $85.07M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 52 | Ameriprise Financial Inc | 726.69K | +231.4% | $85.07M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 53 | Ameriprise Financial Inc | 726.69K | +231.4% | $85.07M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 54 | Two Sigma Investments ✦ | 690.32K | -10.9% | $80.82M | 0.1% | ▼ Trim | 9 | SEC ↗ |
| 55 | Bank of New York Mellon Corp | 669.97K | +14.6% | $78.43M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 56 | Bank of New York Mellon Corp | 669.97K | +14.6% | $78.43M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 57 | Bank of New York Mellon Corp | 669.97K | +14.6% | $78.43M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 58 | Bank of New York Mellon Corp | 669.97K | +14.6% | $78.43M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 59 | Bank of New York Mellon Corp | 669.97K | +14.6% | $78.43M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 60 | Bank of New York Mellon Corp | 669.97K | +14.6% | $78.43M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 61 | Bank of New York Mellon Corp | 669.97K | +14.6% | $78.43M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 62 | Bank of New York Mellon Corp | 669.97K | +14.6% | $78.43M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 63 | Bank of New York Mellon Corp | 669.97K | +14.6% | $78.43M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 64 | Bank of New York Mellon Corp | 669.97K | +14.6% | $78.43M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 65 | Bank of New York Mellon Corp | 669.97K | +14.6% | $78.43M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 66 | Bank of New York Mellon Corp | 669.97K | +14.6% | $78.43M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 67 | Clearbridge Investments, LLC | 639.73K | -4.8% | $74.89M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 68 | Bnp Paribas Financial Markets | 606.43K | -33.5% | $70.99M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 69 | Bnp Paribas Financial Markets | 606.43K | -33.5% | $70.99M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 70 | Bank Of America Corp /De/ | 561.72K | -22.2% | $65.76M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 71 | Bank Of America Corp /De/ | 561.72K | -22.2% | $65.76M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 72 | Bank Of America Corp /De/ | 561.72K | -22.2% | $65.76M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 73 | Bank Of America Corp /De/ | 561.72K | -22.2% | $65.76M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 74 | Goldman Sachs Group ✦ | 549.87K | -17.0% | $64.37M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 75 | Goldman Sachs Group ✦ | 549.87K | -17.0% | $64.37M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 76 | Goldman Sachs Group ✦ | 549.87K | -17.0% | $64.37M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 77 | Pictet Asset Management Holding SA | 526.44K | +24.3% | $61.63M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 78 | Balyasny Asset Management L.P. | 489.17K | -9.2% | $57.27M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 79 | Northern Trust Corp | 452.04K | +14.5% | $52.92M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 80 | Northern Trust Corp | 452.04K | +14.5% | $52.92M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 81 | Northern Trust Corp | 452.04K | +14.5% | $52.92M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 82 | Northern Trust Corp | 452.04K | +14.5% | $52.92M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 83 | Northern Trust Corp | 452.04K | +14.5% | $52.92M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 84 | Charles Schwab Investment… | 449.43K | +5.2% | $52.61M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 85 | Loomis Sayles & Co L P | 443.64K | -6.7% | $51.94M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 86 | Loomis Sayles & Co L P | 443.64K | -6.7% | $51.94M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 87 | Renaissance Technologies ✦ | 442.19K | -24.0% | $51.77M | 0.1% | ▼ Trim | 8 | SEC ↗ |
| 88 | Federated Hermes, Inc. | 436.63K | -13.7% | $51.12M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 89 | Federated Hermes, Inc. | 436.63K | -13.7% | $51.12M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 90 | Connor, Clark & Lunn Investment… | 420.06K | -12.4% | $49.18M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 91 | Massachusetts Financial Services Co… | 384.57K | +34.3% | $45.02M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 92 | Massachusetts Financial Services Co… | 384.57K | +34.3% | $45.02M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 93 | UBS Group AG | 379.76K | -23.3% | $44.46M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 94 | UBS Group AG | 379.76K | -23.3% | $44.46M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 95 | UBS Group AG | 379.76K | -23.3% | $44.46M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 96 | UBS Group AG | 379.76K | -23.3% | $44.46M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 97 | UBS Group AG | 379.76K | -23.3% | $44.46M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 98 | Morgan Stanley ✦ | 351.40K | -33.0% | $41.14M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 99 | Morgan Stanley ✦ | 351.40K | -33.0% | $41.14M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 100 | Morgan Stanley ✦ | 351.40K | -33.0% | $41.14M | 0.0% | ▼ Trim | 4 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| Citadel Advisors | $97.19M | was 0.1% |
| Point72 Asset Management | $32.06M | was 0.1% |
| Arrowstreet Capital | $6.27M | was 0.0% |
| Bank Of Montreal /Can/ | $5.21M | was 0.0% |
| Canada Pension Plan… | $812,944 | was 0.0% |
| Marshall Wace | $429,567 | was 0.0% |
| Baird Financial Group, Inc. | $212,936 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 308 holders, 67.83M shares, $6.01B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Aug 18
Howe Jolanda
Officer · 40.00K sh · $4.00M
Aug 11
BJERKHOLT ERIC
Officer · 6.00K sh · $599,510
Aug 10
Peetz Christopher
Officer, Director · 11.68K sh · $1.15M
Aug 10
Peetz Christopher
Officer, Director · 6.02K sh · $597,187
Aug 10
Peetz Christopher
Officer, Director · 2.30K sh · $230,322
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Aug 13
SC 13G/A — Janus Henderson Group Ltd.
Aug 06
SC 13G — FMR LLC
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q2 2026 ·
Methodology ·
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