Security record · archived quarter
PTCT
PTC Therapeutics, Inc. · Healthcare · Biotechnology
117Tracked holders
0Δ holders
67.93MShares held
$5.16BReported value
+1New positions
−0Exits
Momentum inputs (comparable managers): holder breadth 0.0% · share flow +6.1% · net new positions +0.9% — formula
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2025
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 115 | +8 | 58.79M | $4.78B | +13 | −5 |
| Q1 2026 | 110 | -8 | 65.31M | $4.45B | +9 | −18 |
| Q4 2025 | 117 | 0 | 67.93M | $5.16B | +1 | — |
| Q3 2025 | 22 | +2 | 38.04M | $2.33B | +2 | — |
| Q2 2025 | 17 | 0 | 34.63M | $1.69B | +1 | −1 |
| Q1 2025 | 14 | +2 | 16.93M | $862.87M | +2 | — |
| Q4 2024 | 12 | 0 | 14.84M | $670.12M | — | — |
| Q3 2024 | 11 | -2 | 14.00M | $519.42M | — | −2 |
| Q2 2024 | 13 | — | 14.28M | $436.54M | — | — |
Who holds it · Q4 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 12.78M | +79.2% | $970.70M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 12.78M | +79.2% | $970.70M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 12.78M | +79.2% | $970.70M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 12.78M | +79.2% | $970.70M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 12.78M | +79.2% | $970.70M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 12.78M | +79.2% | $970.70M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 12.78M | +79.2% | $970.70M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 12.78M | +79.2% | $970.70M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 12.78M | +79.2% | $970.70M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 12.78M | +79.2% | $970.70M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 12.78M | +79.2% | $970.70M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 12.78M | +79.2% | $970.70M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 12.78M | +79.2% | $970.70M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 12.78M | +79.2% | $970.70M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 12.78M | +79.2% | $970.70M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 16 | BlackRock ✦ (passive) | 12.78M | +79.2% | $970.70M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 17 | BlackRock ✦ (passive) | 12.78M | +79.2% | $970.70M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 18 | BlackRock ✦ (passive) | 12.78M | +79.2% | $970.70M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 19 | The Vanguard Group ✦ (passive) | 8.80M | +6.2% | $668.69M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 20 | The Vanguard Group ✦ (passive) | 8.80M | +6.2% | $668.69M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 21 | The Vanguard Group ✦ (passive) | 8.80M | +6.2% | $668.69M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 22 | The Vanguard Group ✦ (passive) | 8.80M | +6.2% | $668.69M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 23 | The Vanguard Group ✦ (passive) | 8.80M | +6.2% | $668.69M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 24 | Janus Henderson Group Plc | 4.85M | — | $368.59M | 0.2% | n/c | 1 | SEC ↗ |
| 25 | Janus Henderson Group Plc | 4.85M | — | $368.59M | 0.2% | n/c | 1 | SEC ↗ |
| 26 | Janus Henderson Group Plc | 4.85M | — | $368.59M | 0.2% | n/c | 1 | SEC ↗ |
| 27 | State Street Global Advisors ✦ (passive) | 4.21M | +34.2% | $319.50M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 28 | Toronto Dominion Bank | 4.14M | — | $314.34M | 0.6% | n/c | 1 | SEC ↗ |
| 29 | Wellington Management ✦ | 3.87M | -21.4% | $293.77M | 0.1% | ▼ Trim | 7 | SEC ↗ |
| 30 | Wellington Management ✦ | 3.87M | -21.4% | $293.77M | 0.1% | ▼ Trim | 7 | SEC ↗ |
| 31 | Wellington Management ✦ | 3.87M | -21.4% | $293.77M | 0.1% | ▼ Trim | 7 | SEC ↗ |
| 32 | Wellington Management ✦ | 3.87M | -21.4% | $293.77M | 0.1% | ▼ Trim | 7 | SEC ↗ |
| 33 | Wellington Management ✦ | 3.87M | -21.4% | $293.77M | 0.1% | ▼ Trim | 7 | SEC ↗ |
| 34 | Wellington Management ✦ | 3.87M | -21.4% | $293.77M | 0.1% | ▼ Trim | 7 | SEC ↗ |
| 35 | Wellington Management ✦ | 3.87M | -21.4% | $293.77M | 0.1% | ▼ Trim | 7 | SEC ↗ |
| 36 | Wellington Management ✦ | 3.87M | -21.4% | $293.77M | 0.1% | ▼ Trim | 7 | SEC ↗ |
| 37 | Geode Capital Management ✦ (passive) | 2.02M | +3.3% | $153.16M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 38 | Geode Capital Management ✦ (passive) | 2.02M | +3.3% | $153.16M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 39 | D. E. Shaw & Co. ✦ | 1.74M | -19.8% | $132.55M | 0.1% | ▼ Trim | 7 | SEC ↗ |
| 40 | D. E. Shaw & Co. ✦ | 1.74M | -19.8% | $132.55M | 0.1% | ▼ Trim | 7 | SEC ↗ |
| 41 | Fidelity (FMR) ✦ | 1.68M | +4.3% | $127.71M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 42 | Fidelity (FMR) ✦ | 1.68M | +4.3% | $127.71M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 43 | Fidelity (FMR) ✦ | 1.68M | +4.3% | $127.71M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 44 | Fidelity (FMR) ✦ | 1.68M | +4.3% | $127.71M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 45 | Fidelity (FMR) ✦ | 1.68M | +4.3% | $127.71M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 46 | Fidelity (FMR) ✦ | 1.68M | +4.3% | $127.71M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 47 | Fidelity (FMR) ✦ | 1.68M | +4.3% | $127.71M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 48 | Bank Of America Corp /De/ | 1.43M | — | $108.74M | 0.0% | n/c | 1 | SEC ↗ |
| 49 | Bank Of America Corp /De/ | 1.43M | — | $108.74M | 0.0% | n/c | 1 | SEC ↗ |
| 50 | Bank Of America Corp /De/ | 1.43M | — | $108.74M | 0.0% | n/c | 1 | SEC ↗ |
| 51 | Bank Of America Corp /De/ | 1.43M | — | $108.74M | 0.0% | n/c | 1 | SEC ↗ |
| 52 | Bank Of America Corp /De/ | 1.43M | — | $108.74M | 0.0% | n/c | 1 | SEC ↗ |
| 53 | Bank Of America Corp /De/ | 1.43M | — | $108.74M | 0.0% | n/c | 1 | SEC ↗ |
| 54 | Bank Of America Corp /De/ | 1.43M | — | $108.74M | 0.0% | n/c | 1 | SEC ↗ |
| 55 | Franklin Resources Inc | 1.29M | — | $97.74M | 0.0% | n/c | 1 | SEC ↗ |
| 56 | Franklin Resources Inc | 1.29M | — | $97.74M | 0.0% | n/c | 1 | SEC ↗ |
| 57 | Franklin Resources Inc | 1.29M | — | $97.74M | 0.0% | n/c | 1 | SEC ↗ |
| 58 | Franklin Resources Inc | 1.29M | — | $97.74M | 0.0% | n/c | 1 | SEC ↗ |
| 59 | Franklin Resources Inc | 1.29M | — | $97.74M | 0.0% | n/c | 1 | SEC ↗ |
| 60 | Franklin Resources Inc | 1.29M | — | $97.74M | 0.0% | n/c | 1 | SEC ↗ |
| 61 | Citadel Advisors ✦ | 1.15M | -33.3% | $87.69M | 0.1% | ▼ Trim | 7 | SEC ↗ |
| 62 | Citadel Advisors ✦ | 1.15M | -33.3% | $87.69M | 0.1% | ▼ Trim | 7 | SEC ↗ |
| 63 | Point72 Asset Management ✦ | 1.13M | -7.5% | $85.72M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 64 | Goldman Sachs Group ✦ | 1.02M | +16.7% | $77.71M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 65 | Goldman Sachs Group ✦ | 1.02M | +16.7% | $77.71M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 66 | Goldman Sachs Group ✦ | 1.02M | +16.7% | $77.71M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 67 | Pictet Asset Management Holding SA | 978.96K | — | $74.79M | 0.1% | n/c | 1 | SEC ↗ |
| 68 | UBS Group AG | 964.66K | — | $73.28M | 0.0% | n/c | 1 | SEC ↗ |
| 69 | UBS Group AG | 964.66K | — | $73.28M | 0.0% | n/c | 1 | SEC ↗ |
| 70 | UBS Group AG | 964.66K | — | $73.28M | 0.0% | n/c | 1 | SEC ↗ |
| 71 | UBS Group AG | 964.66K | — | $73.28M | 0.0% | n/c | 1 | SEC ↗ |
| 72 | Morgan Stanley ✦ | 905.19K | +115.8% | $68.76M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 73 | Morgan Stanley ✦ | 905.19K | +115.8% | $68.76M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 74 | Morgan Stanley ✦ | 905.19K | +115.8% | $68.76M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 75 | Morgan Stanley ✦ | 905.19K | +115.8% | $68.76M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 76 | Morgan Stanley ✦ | 905.19K | +115.8% | $68.76M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 77 | Morgan Stanley ✦ | 905.19K | +115.8% | $68.76M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 78 | Morgan Stanley ✦ | 905.19K | +115.8% | $68.76M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 79 | Morgan Stanley ✦ | 905.19K | +115.8% | $68.76M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 80 | Bnp Paribas Financial Markets | 828.66K | — | $62.95M | 0.0% | n/c | 1 | SEC ↗ |
| 81 | Northern Trust Corp | 769.42K | — | $58.45M | 0.0% | n/c | 1 | SEC ↗ |
| 82 | Northern Trust Corp | 769.42K | — | $58.45M | 0.0% | n/c | 1 | SEC ↗ |
| 83 | Northern Trust Corp | 769.42K | — | $58.45M | 0.0% | n/c | 1 | SEC ↗ |
| 84 | Northern Trust Corp | 769.42K | — | $58.45M | 0.0% | n/c | 1 | SEC ↗ |
| 85 | Northern Trust Corp | 769.42K | — | $58.45M | 0.0% | n/c | 1 | SEC ↗ |
| 86 | Northern Trust Corp | 769.42K | — | $58.45M | 0.0% | n/c | 1 | SEC ↗ |
| 87 | Northern Trust Corp | 769.42K | — | $58.45M | 0.0% | n/c | 1 | SEC ↗ |
| 88 | Charles Schwab Investment… | 734.93K | — | $55.83M | 0.0% | n/c | 1 | SEC ↗ |
| 89 | Nuveen, LLC | 699.19K | — | $53.11M | 0.0% | n/c | 1 | SEC ↗ |
| 90 | Nuveen, LLC | 699.19K | — | $53.11M | 0.0% | n/c | 1 | SEC ↗ |
| 91 | Nuveen, LLC | 699.19K | — | $53.11M | 0.0% | n/c | 1 | SEC ↗ |
| 92 | BNP Paribas Asset Management… | 647.59K | — | $49.19M | 0.1% | n/c | 1 | SEC ↗ |
| 93 | BNP Paribas Asset Management… | 647.59K | — | $49.19M | 0.1% | n/c | 1 | SEC ↗ |
| 94 | BNP Paribas Asset Management… | 647.59K | — | $49.19M | 0.1% | n/c | 1 | SEC ↗ |
| 95 | BNP Paribas Asset Management… | 647.59K | — | $49.19M | 0.1% | n/c | 1 | SEC ↗ |
| 96 | Dimensional Fund Advisors Lp | 627.09K | — | $47.63M | 0.0% | n/c | 1 | SEC ↗ |
| 97 | Dimensional Fund Advisors Lp | 627.09K | — | $47.63M | 0.0% | n/c | 1 | SEC ↗ |
| 98 | Dimensional Fund Advisors Lp | 627.09K | — | $47.63M | 0.0% | n/c | 1 | SEC ↗ |
| 99 | Dimensional Fund Advisors Lp | 627.09K | — | $47.63M | 0.0% | n/c | 1 | SEC ↗ |
| 100 | Renaissance Technologies ✦ | 607.59K | -34.5% | $46.15M | 0.1% | ▼ Trim | 7 | 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): 1 holders, 4.16M shares, $5.53M 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 20
SCHMERTZLER MICHAEL
Director · 2.39K sh · $171,793
Aug 20
SCHMERTZLER MICHAEL
Director · 691 sh · $50,388
Aug 20
SCHMERTZLER MICHAEL
Director · 9.42K sh · $666,677
Aug 19
SCHMERTZLER MICHAEL
Director · 7.17K sh · $527,846
Aug 19
SCHMERTZLER MICHAEL
Director · 5.33K sh · $388,708
Aug 17
Boulding Mark Elliott
Officer · 969 sh · $70,640
Aug 17
Boulding Mark Elliott
Officer · 1.84K sh · $133,487
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
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: Q4 2025 ·
Methodology ·
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