Security record · archived quarter
MIRM
Mirum Pharmaceuticals, Inc. · Healthcare · Biotechnology
107Tracked holders
+6Δ holders
39.52MShares held
$3.63BReported value
+12New positions
−7Exits
Momentum inputs (comparable managers):
holder breadth +5.9% ·
share flow +11.0% ·
net new positions +4.7%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 105 | +1 | 35.65M | $4.17B | +8 | −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 · Q1 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Janus Henderson Group Plc | 6.95M | +14.5% | $641.76M | 0.3% | ▲ Add | 2 | SEC ↗ ×3 |
| 2 | BlackRock ✦ (passive) | 3.85M | +5.5% | $355.34M | 0.0% | ▲ Add | 4 | SEC ↗ ×17 |
| 3 | Vanguard Capital Management Llc | 2.41M | — | $223.08M | 0.0% | n/c | 1 | SEC ↗ |
| 4 | Fidelity (FMR) ✦ | 1.97M | +204.0% | $181.56M | 0.0% | ▲ Add | 4 | SEC ↗ ×8 |
| 5 | State Street Global Advisors ✦ (passive) | 1.94M | -9.3% | $179.61M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 6 | T. Rowe Price ✦ | 1.72M | +20.9% | $158.66M | 0.0% | ▲ Add | 8 | SEC ↗ ×2 |
| 7 | Wellington Management ✦ | 1.33M | +7.8% | $123.31M | 0.0% | ▲ Add | 8 | SEC ↗ ×8 |
| 8 | Geode Capital Management ✦ (passive) | 1.26M | +18.5% | $116.42M | 0.0% | ▲ Add | 8 | SEC ↗ ×2 |
| 9 | Citadel Advisors ✦ | 1.05M | +25.2% | $97.19M | 0.1% | ▲ Add | 8 | SEC ↗ ×2 |
| 10 | Bnp Paribas Financial Markets | 911.42K | +39.0% | $84.20M | 0.1% | ▲ Add | 2 | SEC ↗ ×2 |
| 11 | Two Sigma Investments ✦ | 774.84K | +99.4% | $71.58M | 0.1% | ▲ Add | 8 | SEC ↗ |
| 12 | Capital World Investors ✦ | 724.41K | New | $66.92M | 0.0% | New | 1 | SEC ↗ |
| 13 | Bank Of America Corp /De/ | 722.18K | +1.2% | $66.71M | 0.0% | ▲ Add | 2 | SEC ↗ ×4 |
| 14 | Franklin Resources Inc | 714.80K | +9.8% | $66.03M | 0.0% | ▲ Add | 2 | SEC ↗ ×5 |
| 15 | Clearbridge Investments, LLC | 671.87K | -22.4% | $62.07M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 16 | Goldman Sachs Group ✦ | 662.31K | -8.6% | $61.18M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 17 | Bank of New York Mellon Corp | 584.52K | +3.4% | $54.00M | 0.0% | ▲ Add | 2 | SEC ↗ ×12 |
| 18 | Renaissance Technologies ✦ | 582.09K | +32.6% | $53.77M | 0.1% | ▲ Add | 7 | SEC ↗ |
| 19 | Balyasny Asset Management L.P. | 539.03K | +88.6% | $49.80M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 20 | Morgan Stanley ✦ | 524.57K | +23.2% | $48.46M | 0.0% | ▲ Add | 3 | SEC ↗ ×8 |
| 21 | Federated Hermes, Inc. | 506.21K | +5.0% | $46.76M | 0.1% | ▲ Add | 2 | SEC ↗ ×2 |
| 22 | UBS Group AG | 494.99K | +54.3% | $45.73M | 0.0% | ▲ Add | 2 | SEC ↗ ×4 |
| 23 | Connor, Clark & Lunn Investment… | 479.48K | -8.1% | $44.29M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 24 | Loomis Sayles & Co L P | 475.32K | -7.7% | $43.91M | 0.1% | ▼ Trim | 2 | SEC ↗ ×2 |
| 25 | Nuveen, LLC | 474.23K | -5.7% | $43.81M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 26 | Charles Schwab Investment… | 427.09K | +4.3% | $39.45M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 27 | Pictet Asset Management Holding SA | 423.51K | -26.6% | $39.12M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 28 | Nomura Asset Management… | 405.32K | -3.9% | $37.44M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 29 | Northern Trust Corp | 394.92K | +5.3% | $36.48M | 0.0% | ▲ Add | 2 | SEC ↗ ×5 |
| 30 | Adage Capital Partners ✦ | 375.00K | -19.8% | $34.64M | 0.1% | ▼ Trim | 8 | SEC ↗ |
| 31 | Millennium Management ✦ | 368.57K | +50.9% | $34.05M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 32 | Point72 Asset Management ✦ | 346.99K | +82.0% | $32.06M | 0.1% | ▲ Add | 5 | SEC ↗ ×2 |
| 33 | Massachusetts Financial Services Co… | 286.41K | New | $26.46M | 0.0% | New | 1 | SEC ↗ ×2 |
| 34 | Invesco Ltd. | 285.24K | +339.2% | $26.35M | 0.0% | ▲ Add | 2 | SEC ↗ ×6 |
| 35 | BNP Paribas Asset Management… | 265.63K | +3.3% | $24.54M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 36 | Raymond James Financial Inc | 228.17K | -7.4% | $21.08M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 37 | Ameriprise Financial Inc | 219.25K | -19.2% | $20.25M | 0.0% | ▼ Trim | 2 | SEC ↗ ×4 |
| 38 | Ensign Peak Advisors, Inc | 202.47K | +51.1% | $18.70M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 39 | New York State Common Retirement… | 201.15K | -7.6% | $18.58M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 40 | Russell Investments Group, Ltd. | 197.09K | -5.8% | $18.21M | 0.0% | ▼ Trim | 2 | SEC ↗ ×7 |
| 41 | D. E. Shaw & Co. ✦ | 167.49K | -82.3% | $15.47M | 0.0% | ▼ Trim | 6 | SEC ↗ ×2 |
| 42 | Legal & General Group Plc | 153.87K | -8.6% | $14.21M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 43 | Citigroup Inc | 153.47K | +5.1% | $14.18M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 44 | First Trust Advisors Lp | 151.27K | +9.9% | $13.97M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 45 | Victory Capital Management Inc | 95.56K | +32.4% | $8.83M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 46 | Fisher Asset Management ✦ | 93.11K | +560.9% | $8.60M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 47 | Sei Investments Co | 309.11K | +12.8% | $8.17M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 48 | JPMorgan Chase ✦ | 90.66K | -6.9% | $7.97M | 0.0% | ▼ Trim | 3 | SEC ↗ ×7 |
| 49 | Neuberger Berman Group LLC | 80.55K | New | $7.44M | 0.0% | New | 1 | SEC ↗ ×2 |
| 50 | Swiss National Bank | 74.30K | 0.0% | $6.86M | 0.0% | Held | 2 | SEC ↗ |
| 51 | Voya Investment Management Llc | 68.81K | +1.6% | $6.36M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 52 | Arrowstreet Capital ✦ | 67.89K | -81.8% | $6.27M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 53 | UBS AM, a distinct business unit of… | 66.63K | +12.6% | $6.16M | 0.0% | ▲ Add | 2 | SEC ↗ ×7 |
| 54 | Squarepoint Ops LLC | 61.69K | -64.2% | $5.70M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 55 | Principal Financial Group Inc | 57.37K | +81.2% | $5.30M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 56 | Bank Of Montreal /Can/ | 56.39K | -1.2% | $5.21M | 0.0% | ▼ Trim | 2 | SEC ↗ ×5 |
| 57 | Manufacturers Life Insurance… | 55.69K | +63.3% | $5.14M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 58 | Rhumbline Advisers | 51.94K | +2.3% | $4.80M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 59 | Deutsche Bank Ag\ | 50.05K | -73.2% | $4.62M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 60 | California State Teachers… | 44.48K | +22.1% | $4.11M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 61 | Alliancebernstein L.P. | 49.18K | +13.2% | $3.88M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 62 | Universal- Beteiligungs- und… | 40.02K | +65.9% | $3.70M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 63 | State Of Wisconsin Investment Board | 34.11K | -26.2% | $3.15M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 64 | Alyeska Investment Group, L.P. | 34.05K | New | $3.15M | 0.0% | New | 1 | SEC ↗ |
| 65 | Td Asset Management Inc | 33.69K | +44.7% | $3.11M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 66 | AQR Capital Management ✦ | 31.79K | -2.1% | $2.94M | 0.0% | ▼ Trim | 8 | SEC ↗ ×6 |
| 67 | Allianz Asset Management GmbH | 31.25K | +13.9% | $2.89M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 68 | Creative Planning | 30.66K | -2.7% | $2.83M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 69 | Mackenzie Financial Corp | 27.59K | +38.7% | $2.55M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 70 | Susquehanna International Group, Llp | 24.32K | +669.5% | $2.25M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 71 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 23.27K | -0.1% | $2.13M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 72 | Envestnet Asset Management Inc | 22.56K | +10.1% | $2.08M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 73 | Royal Bank Of Canada | 20.16K | -0.1% | $1.86M | 0.0% | ▼ Trim | 2 | SEC ↗ ×4 |
| 74 | Nomura Holdings Inc | 19.60K | +98.4% | $1.81M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 75 | Barclays Plc | 19.53K | -86.3% | $1.80M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 76 | Wells Fargo & Company/Mn | 17.62K | -84.7% | $1.63M | 0.0% | ▼ Trim | 2 | SEC ↗ ×6 |
| 77 | Prudential Financial Inc | 16.50K | -67.1% | $1.52M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 78 | Zurcher Kantonalbank (Zurich… | 16.38K | +10.5% | $1.51M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 79 | Commonwealth Equity Services, Llc | 16.02K | -0.4% | $1.48M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 80 | Mirae Asset Global Investments Co.… | 10.24K | +10.4% | $946,248 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 81 | ProShare Advisors LLC | 8.81K | -9.8% | $814,145 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 82 | Canada Pension Plan Investment Board | 8.80K | -73.9% | $812,944 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 83 | Quantinno Capital Management LP | 8.50K | +166.2% | $784,953 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 84 | State Board Of Administration Of… | 7.95K | 0.0% | $734,144 | 0.0% | Held | 2 | SEC ↗ |
| 85 | Cetera Investment Advisers | 6.74K | +9.3% | $622,826 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 86 | Jones Financial Companies Lllp | 6.42K | +579.3% | $567,696 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 87 | Tidal Investments LLC | 5.44K | +44.8% | $502,824 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 88 | Rockefeller Capital Management L.P. | 4.87K | +189.6% | $449,983 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 89 | Corient Private Wealth LP | 5.77K | New | $440,746 | 0.0% | New | 1 | SEC ↗ |
| 90 | Marshall Wace ✦ | 4.65K | -95.5% | $429,567 | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 91 | LPL Financial LLC | 4.21K | -19.2% | $389,012 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 92 | Gotham Asset Management ✦ | 3.14K | New | $290,443 | 0.0% | New | 1 | SEC ↗ |
| 93 | Sumitomo Mitsui Trust Group, Inc. | 2.92K | -3.9% | $269,750 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 94 | Allspring Global Investments… | 2.45K | New | $232,008 | 0.0% | New | 1 | SEC ↗ ×2 |
| 95 | Cerity Partners LLC | 2.45K | New | $226,608 | 0.0% | New | 1 | SEC ↗ |
| 96 | CIBC Asset Management Inc | 2.37K | New | $218,848 | 0.0% | New | 1 | SEC ↗ |
| 97 | Baird Financial Group, Inc. | 2.31K | New | $212,936 | 0.0% | New | 1 | SEC ↗ |
| 98 | Lazard Asset Management Llc | 1.98K | 0.0% | $183,005 | 0.0% | Held | 2 | SEC ↗ ×2 |
| 99 | Osaic Holdings, Inc. | 1.75K | +11.1% | $161,937 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 100 | Pnc Financial Services Group, Inc. | 1.36K | +121.6% | $125,267 | 0.0% | ▲ Add | 2 | SEC ↗ ×4 |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Capital World Investors | $66.92M | 0.0% |
| Massachusetts Financial… | $26.46M | 0.0% |
| Neuberger Berman Group LLC | $7.44M | 0.0% |
| Alyeska Investment Group, L.P. | $3.15M | 0.0% |
| Corient Private Wealth LP | $440,746 | 0.0% |
| Gotham Asset Management | $290,443 | 0.0% |
| Allspring Global Investments… | $232,008 | 0.0% |
| Cerity Partners LLC | $226,608 | 0.0% |
| CIBC Asset Management Inc | $218,848 | 0.0% |
| Baird Financial Group, Inc. | $212,936 | 0.0% |
Exited
| Norges Bank | $20.79M | was 0.0% |
| Qube Research & Technologies… | $8.61M | was 0.0% |
| Man Group plc | $540,371 | was 0.0% |
| Tudor Investment Corp Et Al | $411,143 | was 0.0% |
| Group One Trading Llc | $68,879 | was 0.0% |
| Daiwa Securities Group Inc. | $12,000 | was 0.0% |
| National Bank Of Canada /Fi/ | $1,342 | 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)
Sep 14
BJERKHOLT ERIC
Officer · 9.94K sh · $978,093
Sep 02
Howe Jolanda
Officer · 658 sh · $65,800
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 · 2.30K sh · $230,322
Aug 10
Peetz Christopher
Officer, Director · 6.02K sh · $597,187
Aug 10
Peetz Christopher
Officer, Director · 11.68K sh · $1.15M
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: Q1 2026 ·
Methodology ·
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