Security record
RARE
Ultragenyx Pharmaceutical Inc. · Healthcare · Biotechnology
97Tracked holders
-7Δ holders
59.88MShares held
$1.99BReported value
+8New positions
−14Exits
Momentum inputs (comparable managers):
holder breadth -6.7% ·
share flow +8.0% ·
net new positions -6.2%
— formula
Concentrated accumulation — rising shares among fewer 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 | 97 | -7 | 59.88M | $1.99B | +8 | −14 |
| Q1 2026 | 106 | +4 | 55.54M | $1.16B | +10 | −7 |
| Q4 2025 | 102 | 0 | 62.50M | $1.44B | +1 | — |
| Q3 2025 | 19 | -1 | 45.29M | $1.36B | — | −2 |
| Q2 2025 | 18 | -1 | 33.50M | $1.22B | — | −1 |
| Q1 2025 | 16 | 0 | 17.22M | $623.52M | — | — |
| Q4 2024 | 16 | +1 | 16.41M | $690.18M | +1 | — |
| Q3 2024 | 14 | +2 | 15.84M | $879.45M | +2 | — |
| Q2 2024 | 12 | — | 15.75M | $647.24M | — | — |
Who holds it · Q2 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 10.65M | +46.0% | $355.75M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 10.65M | +46.0% | $355.75M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 10.65M | +46.0% | $355.75M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 10.65M | +46.0% | $355.75M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 10.65M | +46.0% | $355.75M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 10.65M | +46.0% | $355.75M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 10.65M | +46.0% | $355.75M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 10.65M | +46.0% | $355.75M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 10.65M | +46.0% | $355.75M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 10.65M | +46.0% | $355.75M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 10.65M | +46.0% | $355.75M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 10.65M | +46.0% | $355.75M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 10.65M | +46.0% | $355.75M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 10.65M | +46.0% | $355.75M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 10.65M | +46.0% | $355.75M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 16 | BlackRock ✦ (passive) | 10.65M | +46.0% | $355.75M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 17 | BlackRock ✦ (passive) | 10.65M | +46.0% | $355.75M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 18 | AQR Capital Management ✦ | 6.56M | +43.3% | $214.14M | 0.1% | ▲ Add | 9 | SEC ↗ |
| 19 | AQR Capital Management ✦ | 6.56M | +43.3% | $214.14M | 0.1% | ▲ Add | 9 | SEC ↗ |
| 20 | AQR Capital Management ✦ | 6.56M | +43.3% | $214.14M | 0.1% | ▲ Add | 9 | SEC ↗ |
| 21 | AQR Capital Management ✦ | 6.56M | +43.3% | $214.14M | 0.1% | ▲ Add | 9 | SEC ↗ |
| 22 | AQR Capital Management ✦ | 6.56M | +43.3% | $214.14M | 0.1% | ▲ Add | 9 | SEC ↗ |
| 23 | AQR Capital Management ✦ | 6.56M | +43.3% | $214.14M | 0.1% | ▲ Add | 9 | SEC ↗ |
| 24 | State Street Global Advisors ✦ (passive) | 6.16M | +22.6% | $205.64M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 25 | Vanguard Capital Management Llc | 4.30M | +2.5% | $143.46M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 26 | Two Sigma Investments ✦ | 3.62M | +64.2% | $120.91M | 0.1% | ▲ Add | 9 | SEC ↗ |
| 27 | Geode Capital Management ✦ (passive) | 2.58M | +39.4% | $86.12M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 28 | Geode Capital Management ✦ (passive) | 2.58M | +39.4% | $86.12M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 29 | D. E. Shaw & Co. ✦ | 1.73M | +37.2% | $57.77M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 30 | D. E. Shaw & Co. ✦ | 1.73M | +37.2% | $57.77M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 31 | Adage Capital Partners ✦ | 1.58M | +229.2% | $52.76M | 0.1% | ▲ Add | 9 | SEC ↗ |
| 32 | T. Rowe Price ✦ | 1.36M | +68.7% | $45.30M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 33 | T. Rowe Price ✦ | 1.36M | +68.7% | $45.30M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 34 | Morgan Stanley ✦ | 1.32M | -11.7% | $44.24M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 35 | Morgan Stanley ✦ | 1.32M | -11.7% | $44.24M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 36 | Morgan Stanley ✦ | 1.32M | -11.7% | $44.24M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 37 | Morgan Stanley ✦ | 1.32M | -11.7% | $44.24M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 38 | Morgan Stanley ✦ | 1.32M | -11.7% | $44.24M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 39 | Morgan Stanley ✦ | 1.32M | -11.7% | $44.24M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 40 | Morgan Stanley ✦ | 1.32M | -11.7% | $44.24M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 41 | Morgan Stanley ✦ | 1.32M | -11.7% | $44.24M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 42 | Morgan Stanley ✦ | 1.32M | -11.7% | $44.24M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 43 | Wellington Management ✦ | 1.25M | -52.6% | $41.75M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 44 | Wellington Management ✦ | 1.25M | -52.6% | $41.75M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 45 | Wellington Management ✦ | 1.25M | -52.6% | $41.75M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 46 | Wellington Management ✦ | 1.25M | -52.6% | $41.75M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 47 | Wellington Management ✦ | 1.25M | -52.6% | $41.75M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 48 | Bank Of America Corp /De/ | 1.15M | +9.7% | $38.35M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 49 | Bank Of America Corp /De/ | 1.15M | +9.7% | $38.35M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 50 | Bank Of America Corp /De/ | 1.15M | +9.7% | $38.35M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 51 | Bank Of America Corp /De/ | 1.15M | +9.7% | $38.35M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 52 | Bank Of America Corp /De/ | 1.15M | +9.7% | $38.35M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 53 | Northern Trust Corp | 920.31K | +71.8% | $30.73M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 54 | Northern Trust Corp | 920.31K | +71.8% | $30.73M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 55 | Northern Trust Corp | 920.31K | +71.8% | $30.73M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 56 | Northern Trust Corp | 920.31K | +71.8% | $30.73M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 57 | Northern Trust Corp | 920.31K | +71.8% | $30.73M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 58 | Northern Trust Corp | 920.31K | +71.8% | $30.73M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 59 | Qube Research & Technologies Ltd | 882.22K | -3.6% | $29.46M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 60 | Russell Investments Group, Ltd. | 784.10K | +94.6% | $26.18M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 61 | Russell Investments Group, Ltd. | 784.10K | +94.6% | $26.18M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 62 | Russell Investments Group, Ltd. | 784.10K | +94.6% | $26.18M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 63 | Russell Investments Group, Ltd. | 784.10K | +94.6% | $26.18M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 64 | Russell Investments Group, Ltd. | 784.10K | +94.6% | $26.18M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 65 | Russell Investments Group, Ltd. | 784.10K | +94.6% | $26.18M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 66 | Russell Investments Group, Ltd. | 784.10K | +94.6% | $26.18M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 67 | Russell Investments Group, Ltd. | 784.10K | +94.6% | $26.18M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 68 | Russell Investments Group, Ltd. | 784.10K | +94.6% | $26.18M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 69 | Russell Investments Group, Ltd. | 784.10K | +94.6% | $26.18M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 70 | Russell Investments Group, Ltd. | 784.10K | +94.6% | $26.18M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 71 | Russell Investments Group, Ltd. | 784.10K | +94.6% | $26.18M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 72 | Millennium Management ✦ | 760.83K | -57.1% | $25.40M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 73 | Charles Schwab Investment… | 760.04K | +36.1% | $25.38M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 74 | Nuveen, LLC | 693.96K | +4.8% | $23.17M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 75 | Nuveen, LLC | 693.96K | +4.8% | $23.17M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 76 | Nuveen, LLC | 693.96K | +4.8% | $23.17M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 77 | Pictet Asset Management Holding SA | 753.70K | +24.9% | $23.16M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 78 | UBS Group AG | 657.70K | -21.0% | $21.96M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 79 | UBS Group AG | 657.70K | -21.0% | $21.96M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 80 | UBS Group AG | 657.70K | -21.0% | $21.96M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 81 | UBS Group AG | 657.70K | -21.0% | $21.96M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 82 | Legal & General Group Plc | 586.52K | -0.6% | $19.58M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 83 | Legal & General Group Plc | 586.52K | -0.6% | $19.58M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 84 | Legal & General Group Plc | 586.52K | -0.6% | $19.58M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 85 | Fidelity (FMR) ✦ | 576.85K | +100.8% | $19.26M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 86 | Fidelity (FMR) ✦ | 576.85K | +100.8% | $19.26M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 87 | Fidelity (FMR) ✦ | 576.85K | +100.8% | $19.26M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 88 | Fidelity (FMR) ✦ | 576.85K | +100.8% | $19.26M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 89 | Fidelity (FMR) ✦ | 576.85K | +100.8% | $19.26M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 90 | Goldman Sachs Group ✦ | 575.34K | +62.9% | $19.21M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 91 | Goldman Sachs Group ✦ | 575.34K | +62.9% | $19.21M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 92 | Goldman Sachs Group ✦ | 575.34K | +62.9% | $19.21M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 93 | Bnp Paribas Financial Markets | 498.17K | +1.5% | $16.63M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 94 | Bank of New York Mellon Corp | 470.70K | +38.0% | $15.72M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 95 | Bank of New York Mellon Corp | 470.70K | +38.0% | $15.72M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 96 | Bank of New York Mellon Corp | 470.70K | +38.0% | $15.72M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 97 | Bank of New York Mellon Corp | 470.70K | +38.0% | $15.72M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 98 | Bank of New York Mellon Corp | 470.70K | +38.0% | $15.72M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 99 | Bank of New York Mellon Corp | 470.70K | +38.0% | $15.72M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 100 | Bank of New York Mellon Corp | 470.70K | +38.0% | $15.72M | 0.0% | ▲ Add | 3 | 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
| Point72 Asset Management | $18.71M | was 0.0% |
| Hrt Financial Lp | $12.85M | was 0.0% |
| Balyasny Asset Management L.P. | $8.05M | was 0.0% |
| Jane Street Group, Llc | $3.64M | was 0.0% |
| Nordea Investment Management… | $1.20M | was 0.0% |
| Tudor Investment Corp Et Al | $1.12M | was 0.0% |
| Aberdeen Group plc | $806,554 | was 0.0% |
| Nomura Holdings Inc | $628,500 | was 0.0% |
| American Century Companies Inc | $456,291 | was 0.0% |
| Amundi | $317,728 | was 0.0% |
| Tidal Investments LLC | $242,245 | was 0.0% |
| Walleye Trading LLC | $147,467 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 293 holders, 97.86M shares, $1.96B 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.
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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