Security record
PTCT
PTC Therapeutics, Inc. · Healthcare · Biotechnology
115Tracked holders
+8Δ holders
58.79MShares held
$4.78BReported value
+13New positions
−5Exits
Momentum inputs (comparable managers):
holder breadth +7.5% ·
share flow +1.4% ·
net new positions +7.0%
— 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 | 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 · Q2 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 13.96M | +7.8% | $1.14B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 13.96M | +7.8% | $1.14B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 13.96M | +7.8% | $1.14B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 13.96M | +7.8% | $1.14B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 13.96M | +7.8% | $1.14B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 13.96M | +7.8% | $1.14B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 13.96M | +7.8% | $1.14B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 13.96M | +7.8% | $1.14B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 13.96M | +7.8% | $1.14B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 13.96M | +7.8% | $1.14B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 13.96M | +7.8% | $1.14B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 13.96M | +7.8% | $1.14B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 13.96M | +7.8% | $1.14B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 13.96M | +7.8% | $1.14B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 13.96M | +7.8% | $1.14B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 16 | BlackRock ✦ (passive) | 13.96M | +7.8% | $1.14B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 17 | BlackRock ✦ (passive) | 13.96M | +7.8% | $1.14B | 0.0% | ▲ Add | 5 | SEC ↗ |
| 18 | State Street Global Advisors ✦ (passive) | 4.60M | +5.8% | $375.14M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 19 | Wellington Management ✦ | 4.13M | +4.7% | $336.74M | 0.1% | ▲ Add | 9 | SEC ↗ |
| 20 | Wellington Management ✦ | 4.13M | +4.7% | $336.74M | 0.1% | ▲ Add | 9 | SEC ↗ |
| 21 | Wellington Management ✦ | 4.13M | +4.7% | $336.74M | 0.1% | ▲ Add | 9 | SEC ↗ |
| 22 | Wellington Management ✦ | 4.13M | +4.7% | $336.74M | 0.1% | ▲ Add | 9 | SEC ↗ |
| 23 | Wellington Management ✦ | 4.13M | +4.7% | $336.74M | 0.1% | ▲ Add | 9 | SEC ↗ |
| 24 | Wellington Management ✦ | 4.13M | +4.7% | $336.74M | 0.1% | ▲ Add | 9 | SEC ↗ |
| 25 | Wellington Management ✦ | 4.13M | +4.7% | $336.74M | 0.1% | ▲ Add | 9 | SEC ↗ |
| 26 | Vanguard Capital Management Llc | 3.74M | +1.7% | $305.00M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 27 | Geode Capital Management ✦ (passive) | 2.21M | -0.1% | $180.09M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 28 | Geode Capital Management ✦ (passive) | 2.21M | -0.1% | $180.09M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 29 | Toronto Dominion Bank | 2.17M | -28.4% | $176.67M | 0.3% | ▼ Trim | 3 | SEC ↗ |
| 30 | Toronto Dominion Bank | 2.17M | -28.4% | $176.67M | 0.3% | ▼ Trim | 3 | SEC ↗ |
| 31 | D. E. Shaw & Co. ✦ | 1.55M | -5.6% | $126.35M | 0.1% | ▼ Trim | 9 | SEC ↗ |
| 32 | D. E. Shaw & Co. ✦ | 1.55M | -5.6% | $126.35M | 0.1% | ▼ Trim | 9 | SEC ↗ |
| 33 | Bank Of America Corp /De/ | 1.45M | -23.0% | $118.46M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 34 | Bank Of America Corp /De/ | 1.45M | -23.0% | $118.46M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 35 | Bank Of America Corp /De/ | 1.45M | -23.0% | $118.46M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 36 | Bank Of America Corp /De/ | 1.45M | -23.0% | $118.46M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 37 | Bank Of America Corp /De/ | 1.45M | -23.0% | $118.46M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 38 | Fidelity (FMR) ✦ | 1.40M | -8.5% | $114.06M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 39 | Fidelity (FMR) ✦ | 1.40M | -8.5% | $114.06M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 40 | Fidelity (FMR) ✦ | 1.40M | -8.5% | $114.06M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 41 | Fidelity (FMR) ✦ | 1.40M | -8.5% | $114.06M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 42 | Fidelity (FMR) ✦ | 1.40M | -8.5% | $114.06M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 43 | Fidelity (FMR) ✦ | 1.40M | -8.5% | $114.06M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 44 | Fidelity (FMR) ✦ | 1.40M | -8.5% | $114.06M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 45 | Pictet Asset Management Holding SA | 1.15M | -3.0% | $93.63M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 46 | T. Rowe Price ✦ | 1.11M | +134.6% | $90.91M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 47 | T. Rowe Price ✦ | 1.11M | +134.6% | $90.91M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 48 | Morgan Stanley ✦ | 1.10M | +63.7% | $90.03M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 49 | Morgan Stanley ✦ | 1.10M | +63.7% | $90.03M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 50 | Morgan Stanley ✦ | 1.10M | +63.7% | $90.03M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 51 | Morgan Stanley ✦ | 1.10M | +63.7% | $90.03M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 52 | Morgan Stanley ✦ | 1.10M | +63.7% | $90.03M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 53 | Morgan Stanley ✦ | 1.10M | +63.7% | $90.03M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 54 | Morgan Stanley ✦ | 1.10M | +63.7% | $90.03M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 55 | Morgan Stanley ✦ | 1.10M | +63.7% | $90.03M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 56 | Morgan Stanley ✦ | 1.10M | +63.7% | $90.03M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 57 | Morgan Stanley ✦ | 1.10M | +63.7% | $90.03M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 58 | Franklin Resources Inc | 1.03M | -8.4% | $83.80M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 59 | Franklin Resources Inc | 1.03M | -8.4% | $83.80M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 60 | Franklin Resources Inc | 1.03M | -8.4% | $83.80M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 61 | Franklin Resources Inc | 1.03M | -8.4% | $83.80M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 62 | Invesco Ltd. | 941.58K | +8.8% | $76.80M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 63 | Invesco Ltd. | 941.58K | +8.8% | $76.80M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 64 | Invesco Ltd. | 941.58K | +8.8% | $76.80M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 65 | Invesco Ltd. | 941.58K | +8.8% | $76.80M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 66 | Invesco Ltd. | 941.58K | +8.8% | $76.80M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 67 | Invesco Ltd. | 941.58K | +8.8% | $76.80M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 68 | Northern Trust Corp | 880.03K | +9.2% | $71.78M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 69 | Northern Trust Corp | 880.03K | +9.2% | $71.78M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 70 | Northern Trust Corp | 880.03K | +9.2% | $71.78M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 71 | Northern Trust Corp | 880.03K | +9.2% | $71.78M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 72 | Northern Trust Corp | 880.03K | +9.2% | $71.78M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 73 | Northern Trust Corp | 880.03K | +9.2% | $71.78M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 74 | Charles Schwab Investment… | 790.11K | +8.0% | $64.45M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 75 | Citadel Advisors ✦ | 747.82K | +94.1% | $61.00M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 76 | Citadel Advisors ✦ | 747.82K | +94.1% | $61.00M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 77 | Renaissance Technologies ✦ | 723.50K | +35.7% | $59.02M | 0.1% | ▲ Add | 9 | SEC ↗ |
| 78 | Boston Partners | 718.57K | +11.0% | $58.61M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 79 | Boston Partners | 718.57K | +11.0% | $58.61M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 80 | Marshall Wace ✦ | 704.79K | +53.0% | $57.49M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 81 | Marshall Wace ✦ | 704.79K | +53.0% | $57.49M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 82 | JPMorgan Chase ✦ | 684.04K | +97.7% | $56.07M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 83 | JPMorgan Chase ✦ | 684.04K | +97.7% | $56.07M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 84 | JPMorgan Chase ✦ | 684.04K | +97.7% | $56.07M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 85 | JPMorgan Chase ✦ | 684.04K | +97.7% | $56.07M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 86 | JPMorgan Chase ✦ | 684.04K | +97.7% | $56.07M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 87 | JPMorgan Chase ✦ | 684.04K | +97.7% | $56.07M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 88 | JPMorgan Chase ✦ | 684.04K | +97.7% | $56.07M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 89 | JPMorgan Chase ✦ | 684.04K | +97.7% | $56.07M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 90 | Arrowstreet Capital ✦ | 654.38K | +486.2% | $53.38M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 91 | Dimensional Fund Advisors Lp | 637.70K | -28.4% | $52.02M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 92 | Dimensional Fund Advisors Lp | 637.70K | -28.4% | $52.02M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 93 | Goldman Sachs Group ✦ | 618.25K | -25.3% | $50.43M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 94 | Goldman Sachs Group ✦ | 618.25K | -25.3% | $50.43M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 95 | Goldman Sachs Group ✦ | 618.25K | -25.3% | $50.43M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 96 | Loomis Sayles & Co L P | 590.37K | +19.6% | $48.16M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 97 | Loomis Sayles & Co L P | 590.37K | +19.6% | $48.16M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 98 | Nuveen, LLC | 583.83K | -12.5% | $47.62M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 99 | Nuveen, LLC | 583.83K | -12.5% | $47.62M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 100 | Nuveen, LLC | 583.83K | -12.5% | $47.62M | 0.0% | ▼ Trim | 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
| DZ BANK AG Deutsche Zentral… | $14.54M | was 0.0% |
| Group One Trading Llc | $3.59M | was 0.1% |
| Simplex Trading, Llc | $693,563 | was 0.0% |
| Aviva Plc | $460,831 | was 0.0% |
| Assetmark, Inc | $204 | was 0.0% |
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: Q2 2026 ·
Methodology ·
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