Security record · archived quarter
MIRM
Mirum Pharmaceuticals, Inc. · Healthcare · Biotechnology
20Tracked holders
0Δ holders
17.64MShares held
$1.29BReported value
+0New positions
−0Exits
Momentum inputs (comparable managers): holder breadth 0.0% · share flow +18.1% · net new positions 0.0% — formula
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2025
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 · Q3 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 3.60M | +0.7% | $264.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 3.60M | +0.7% | $264.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 3.60M | +0.7% | $264.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 3.60M | +0.7% | $264.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 3.60M | +0.7% | $264.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 3.60M | +0.7% | $264.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 3.60M | +0.7% | $264.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 3.60M | +0.7% | $264.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 3.60M | +0.7% | $264.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 3.60M | +0.7% | $264.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 3.60M | +0.7% | $264.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 3.60M | +0.7% | $264.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 3.60M | +0.7% | $264.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 3.60M | +0.7% | $264.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 3.60M | +0.7% | $264.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 16 | The Vanguard Group ✦ (passive) | 2.55M | -0.8% | $186.60M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 17 | The Vanguard Group ✦ (passive) | 2.55M | -0.8% | $186.60M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 18 | The Vanguard Group ✦ (passive) | 2.55M | -0.8% | $186.60M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 19 | The Vanguard Group ✦ (passive) | 2.55M | -0.8% | $186.60M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 20 | The Vanguard Group ✦ (passive) | 2.55M | -0.8% | $186.60M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 21 | State Street Global Advisors ✦ (passive) | 1.35M | -2.1% | $98.74M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 22 | T. Rowe Price ✦ | 1.28M | -9.4% | $94.08M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 23 | T. Rowe Price ✦ | 1.28M | -9.4% | $94.08M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 24 | Citadel Advisors ✦ | 1.04M | -26.0% | $76.28M | 0.1% | ▼ Trim | 6 | SEC ↗ |
| 25 | Citadel Advisors ✦ | 1.04M | -26.0% | $76.28M | 0.1% | ▼ Trim | 6 | SEC ↗ |
| 26 | Citadel Advisors ✦ | 1.04M | -26.0% | $76.28M | 0.1% | ▼ Trim | 6 | SEC ↗ |
| 27 | Geode Capital Management ✦ (passive) | 1.01M | -1.9% | $74.06M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 28 | Geode Capital Management ✦ (passive) | 1.01M | -1.9% | $74.06M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 29 | D. E. Shaw & Co. ✦ | 923.51K | +66.4% | $67.70M | 0.1% | ▲ Add | 4 | SEC ↗ |
| 30 | D. E. Shaw & Co. ✦ | 923.51K | +66.4% | $67.70M | 0.1% | ▲ Add | 4 | SEC ↗ |
| 31 | Wellington Management ✦ | 790.69K | +566.9% | $57.97M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 32 | Wellington Management ✦ | 790.69K | +566.9% | $57.97M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 33 | Wellington Management ✦ | 790.69K | +566.9% | $57.97M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 34 | Wellington Management ✦ | 790.69K | +566.9% | $57.97M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 35 | Wellington Management ✦ | 790.69K | +566.9% | $57.97M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 36 | Wellington Management ✦ | 790.69K | +566.9% | $57.97M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 37 | Wellington Management ✦ | 790.69K | +566.9% | $57.97M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 38 | Point72 Asset Management ✦ | 790.67K | +205.4% | $57.96M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 39 | Point72 Asset Management ✦ | 790.67K | +205.4% | $57.96M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 40 | Morgan Stanley ✦ | 670.15K | — | $49.13M | 0.0% | n/c | 1 | SEC ↗ |
| 41 | Morgan Stanley ✦ | 670.15K | — | $49.13M | 0.0% | n/c | 1 | SEC ↗ |
| 42 | Morgan Stanley ✦ | 670.15K | — | $49.13M | 0.0% | n/c | 1 | SEC ↗ |
| 43 | Morgan Stanley ✦ | 670.15K | — | $49.13M | 0.0% | n/c | 1 | SEC ↗ |
| 44 | Morgan Stanley ✦ | 670.15K | — | $49.13M | 0.0% | n/c | 1 | SEC ↗ |
| 45 | Morgan Stanley ✦ | 670.15K | — | $49.13M | 0.0% | n/c | 1 | SEC ↗ |
| 46 | Morgan Stanley ✦ | 670.15K | — | $49.13M | 0.0% | n/c | 1 | SEC ↗ |
| 47 | Morgan Stanley ✦ | 670.15K | — | $49.13M | 0.0% | n/c | 1 | SEC ↗ |
| 48 | Fidelity (FMR) ✦ | 640.22K | +977.1% | $46.93M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 49 | Fidelity (FMR) ✦ | 640.22K | +977.1% | $46.93M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 50 | Fidelity (FMR) ✦ | 640.22K | +977.1% | $46.93M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 51 | Fidelity (FMR) ✦ | 640.22K | +977.1% | $46.93M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 52 | Arrowstreet Capital ✦ | 612.32K | +709.5% | $44.89M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 53 | Renaissance Technologies ✦ | 513.45K | +29.5% | $37.64M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 54 | Adage Capital Partners ✦ | 497.47K | +104.7% | $36.47M | 0.1% | ▲ Add | 6 | SEC ↗ |
| 55 | Goldman Sachs Group ✦ | 450.84K | — | $33.05M | 0.0% | n/c | 1 | SEC ↗ |
| 56 | Goldman Sachs Group ✦ | 450.84K | — | $33.05M | 0.0% | n/c | 1 | SEC ↗ |
| 57 | Two Sigma Investments ✦ | 343.13K | +99.7% | $25.15M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 58 | Millennium Management ✦ | 309.03K | +7.2% | $22.66M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 59 | JPMorgan Chase ✦ | 200.42K | — | $14.69M | 0.0% | n/c | 1 | SEC ↗ |
| 60 | JPMorgan Chase ✦ | 200.42K | — | $14.69M | 0.0% | n/c | 1 | SEC ↗ |
| 61 | JPMorgan Chase ✦ | 200.42K | — | $14.69M | 0.0% | n/c | 1 | SEC ↗ |
| 62 | JPMorgan Chase ✦ | 200.42K | — | $14.69M | 0.0% | n/c | 1 | SEC ↗ |
| 63 | JPMorgan Chase ✦ | 200.42K | — | $14.69M | 0.0% | n/c | 1 | SEC ↗ |
| 64 | JPMorgan Chase ✦ | 200.42K | — | $14.69M | 0.0% | n/c | 1 | SEC ↗ |
| 65 | JPMorgan Chase ✦ | 200.42K | — | $14.69M | 0.0% | n/c | 1 | SEC ↗ |
| 66 | JPMorgan Chase ✦ | 200.42K | — | $14.69M | 0.0% | n/c | 1 | SEC ↗ |
| 67 | JPMorgan Chase ✦ | 200.42K | — | $14.69M | 0.0% | n/c | 1 | SEC ↗ |
| 68 | JPMorgan Chase ✦ | 200.42K | — | $14.69M | 0.0% | n/c | 1 | SEC ↗ |
| 69 | JPMorgan Chase ✦ | 200.42K | — | $14.69M | 0.0% | n/c | 1 | SEC ↗ |
| 70 | JPMorgan Chase ✦ | 200.42K | — | $14.69M | 0.0% | n/c | 1 | SEC ↗ |
| 71 | JPMorgan Chase ✦ | 200.42K | — | $14.69M | 0.0% | n/c | 1 | SEC ↗ |
| 72 | JPMorgan Chase ✦ | 200.42K | — | $14.69M | 0.0% | n/c | 1 | SEC ↗ |
| 73 | JPMorgan Chase ✦ | 200.42K | — | $14.69M | 0.0% | n/c | 1 | SEC ↗ |
| 74 | JPMorgan Chase ✦ | 200.42K | — | $14.69M | 0.0% | n/c | 1 | SEC ↗ |
| 75 | Marshall Wace ✦ | 39.83K | +56.0% | $2.92M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 76 | AQR Capital Management ✦ | 31.39K | -33.9% | $2.30M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 77 | AQR Capital Management ✦ | 31.39K | -33.9% | $2.30M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 78 | AQR Capital Management ✦ | 31.39K | -33.9% | $2.30M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 79 | AQR Capital Management ✦ | 31.39K | -33.9% | $2.30M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 80 | AQR Capital Management ✦ | 31.39K | -33.9% | $2.30M | 0.0% | ▼ Trim | 6 | 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
| No tracked exits this quarter. |
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: Q3 2025 ·
Methodology ·
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