Security record · archived quarter
PTCT
PTC Therapeutics, Inc. · Healthcare · Biotechnology
110Tracked holders
-8Δ holders
65.31MShares held
$4.45BReported value
+9New positions
−18Exits
Momentum inputs (comparable managers):
holder breadth -6.8% ·
share flow +3.8% ·
net new positions -8.2%
· formula
Concentrated accumulation: rising shares among fewer 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 |
|---|---|---|---|---|---|---|
| Q3 2026 | 2 | 0 | 18.67K | $1.18M | n/a | −1 |
| Q2 2026 | 113 | +8 | 59.00M | $4.80B | +13 | −7 |
| Q1 2026 | 110 | -8 | 65.31M | $4.45B | +9 | −18 |
| Q4 2025 | 117 | 0 | 67.93M | $5.16B | +1 | n/a |
| Q3 2025 | 22 | +2 | 38.04M | $2.33B | +2 | n/a |
| Q2 2025 | 17 | 0 | 34.63M | $1.69B | +1 | −1 |
| Q1 2025 | 14 | +2 | 16.93M | $862.87M | +2 | n/a |
| Q4 2024 | 12 | 0 | 14.84M | $670.12M | n/a | n/a |
| Q3 2024 | 11 | -2 | 14.00M | $519.42M | n/a | −2 |
| Q2 2024 | 13 | n/a | 14.28M | $436.54M | n/a | n/a |
Who holds it · Q1 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 12.95M | +1.3% | $882.20M | 0.0% | ▲ Add | 4 | SEC ↗ ×19 |
| 2 | Janus Henderson Group Plc | 7.19M | +48.3% | $490.00M | 0.2% | ▲ Add | 2 | SEC ↗ ×3 |
| 3 | State Street Global Advisors ✦ (passive) | 4.35M | +3.3% | $296.13M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 4 | Wellington Management ✦ | 3.94M | +1.9% | $268.61M | 0.1% | ▲ Add | 8 | SEC ↗ ×7 |
| 5 | Vanguard Capital Management Llc | 3.68M | n/a | $250.46M | 0.0% | n/c | 1 | SEC ↗ |
| 6 | Toronto Dominion Bank | 3.03M | -26.9% | $206.16M | 0.4% | ▼ Trim | 2 | SEC ↗ ×2 |
| 7 | Geode Capital Management ✦ (passive) | 2.21M | +9.6% | $150.59M | 0.0% | ▲ Add | 8 | SEC ↗ ×2 |
| 8 | Bank Of America Corp /De/ | 1.89M | +31.8% | $128.55M | 0.0% | ▲ Add | 2 | SEC ↗ ×5 |
| 9 | D. E. Shaw & Co. ✦ | 1.64M | -6.0% | $111.76M | 0.1% | ▼ Trim | 8 | SEC ↗ ×2 |
| 10 | Fidelity (FMR) ✦ | 1.53M | -9.1% | $104.13M | 0.0% | ▼ Trim | 4 | SEC ↗ ×7 |
| 11 | UBS Group AG | 1.36M | +41.5% | $92.98M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 12 | Pictet Asset Management Holding SA | 1.18M | +20.9% | $80.06M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 13 | Franklin Resources Inc | 1.12M | -12.8% | $76.40M | 0.0% | ▼ Trim | 2 | SEC ↗ ×6 |
| 14 | Bnp Paribas Financial Markets | 920.48K | +11.1% | $62.71M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 15 | Dimensional Fund Advisors Lp | 890.72K | +42.0% | $60.67M | 0.0% | ▲ Add | 2 | SEC ↗ ×5 |
| 16 | Invesco Ltd. | 865.45K | +99.3% | $58.96M | 0.0% | ▲ Add | 2 | SEC ↗ ×7 |
| 17 | Goldman Sachs Group ✦ | 827.63K | -19.1% | $56.39M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 18 | Northern Trust Corp | 806.28K | +4.8% | $54.93M | 0.0% | ▲ Add | 2 | SEC ↗ ×6 |
| 19 | Charles Schwab Investment… | 731.64K | -0.5% | $49.85M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 20 | Morgan Stanley ✦ | 674.13K | -25.5% | $45.93M | 0.0% | ▼ Trim | 3 | SEC ↗ ×7 |
| 21 | Nuveen, LLC | 667.02K | -4.6% | $45.44M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 22 | Boston Partners | 647.48K | +32.7% | $44.11M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 23 | Ensign Peak Advisors, Inc | 582.32K | +107.5% | $39.67M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 24 | Renaissance Technologies ✦ | 533.30K | -12.2% | $36.33M | 0.1% | ▼ Trim | 8 | SEC ↗ |
| 25 | Bank of New York Mellon Corp | 522.76K | +1.6% | $35.62M | 0.0% | ▲ Add | 2 | SEC ↗ ×10 |
| 26 | Principal Financial Group Inc | 515.00K | +7.5% | $35.09M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 27 | Qube Research & Technologies Ltd | 513.82K | New | $35.01M | 0.1% | New | 1 | SEC ↗ |
| 28 | Loomis Sayles & Co L P | 493.60K | New | $33.63M | 0.0% | New | 1 | SEC ↗ ×2 |
| 29 | T. Rowe Price ✦ | 475.15K | +3.3% | $32.37M | 0.0% | ▲ Add | 8 | SEC ↗ ×2 |
| 30 | Marshall Wace ✦ | 460.64K | +85.9% | $31.38M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 31 | Balyasny Asset Management L.P. | 460.56K | New | $31.38M | 0.1% | New | 1 | SEC ↗ |
| 32 | Manufacturers Life Insurance… | 425.24K | -0.3% | $28.97M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 33 | Citadel Advisors ✦ | 385.20K | -66.6% | $26.24M | 0.0% | ▼ Trim | 8 | SEC ↗ ×2 |
| 34 | Rockefeller Capital Management L.P. | 384.67K | -5.1% | $26.21M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 35 | Mackenzie Financial Corp | 345.68K | +45.9% | $23.55M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 36 | Legal & General Group Plc | 343.38K | -6.2% | $23.39M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 37 | Voya Investment Management Llc | 342.64K | +1.0% | $23.34M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 38 | AQR Capital Management ✦ | 342.11K | +0.1% | $23.31M | 0.0% | ▲ Add | 8 | SEC ↗ ×6 |
| 39 | Russell Investments Group, Ltd. | 335.44K | +23.9% | $22.85M | 0.0% | ▲ Add | 2 | SEC ↗ ×11 |
| 40 | JPMorgan Chase ✦ | 346.02K | -2.8% | $22.71M | 0.0% | ▼ Trim | 3 | SEC ↗ ×7 |
| 41 | BNP Paribas Asset Management… | 311.81K | -51.9% | $21.24M | 0.0% | ▼ Trim | 2 | SEC ↗ ×4 |
| 42 | Deutsche Bank Ag\ | 238.75K | +3.2% | $16.27M | 0.0% | ▲ Add | 2 | SEC ↗ ×5 |
| 43 | Hsbc Holdings Plc | 227.06K | +836.1% | $15.47M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 44 | Federated Hermes, Inc. | 225.92K | +100.7% | $15.39M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 45 | DZ BANK AG Deutsche Zentral… | 213.36K | -3.4% | $14.54M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 46 | Rhumbline Advisers | 212.46K | +2.2% | $14.48M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 47 | Susquehanna International Group, Llp | 207.94K | +1013.1% | $14.17M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 48 | Alliancebernstein L.P. | 152.18K | +61.4% | $11.56M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 49 | Ameriprise Financial Inc | 166.66K | +12.9% | $11.35M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 50 | Prudential Financial Inc | 164.57K | -10.2% | $11.21M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 51 | Swiss National Bank | 142.87K | +1.3% | $9.73M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 52 | First Trust Advisors Lp | 136.00K | -12.6% | $9.27M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 53 | Sei Investments Co | 130.20K | +41.4% | $8.87M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 54 | Schroder Investment Management Group | 134.97K | n/a | $8.86M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 55 | Universal- Beteiligungs- und… | 129.68K | -14.3% | $8.84M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 56 | UBS AM, a distinct business unit of… | 126.96K | -3.7% | $8.65M | 0.0% | ▼ Trim | 2 | SEC ↗ ×8 |
| 57 | Neuberger Berman Group LLC | 121.55K | +8.9% | $8.28M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 58 | Arrowstreet Capital ✦ | 111.63K | -72.5% | $7.61M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 59 | Wcm Investment Management, Llc | 94.69K | -14.1% | $6.22M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 60 | California State Teachers… | 84.32K | +23.5% | $5.74M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 61 | State Of Wisconsin Investment Board | 68.99K | +47.5% | $4.70M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 62 | Assenagon Asset Management S.A. | 61.40K | +13.3% | $4.18M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 63 | Barclays Plc | 53.08K | -75.9% | $3.62M | 0.0% | ▼ Trim | 2 | SEC ↗ ×4 |
| 64 | Group One Trading Llc | 52.71K | New | $3.59M | 0.1% | New | 1 | SEC ↗ |
| 65 | Raymond James Financial Inc | 52.45K | -39.0% | $3.57M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 66 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 51.07K | +1.8% | $3.47M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 67 | Canada Pension Plan Investment Board | 50.51K | -33.0% | $3.44M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 68 | Mercer Global Advisors Inc /Adv | 50.36K | +274.9% | $3.43M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 69 | Allspring Global Investments… | 47.87K | +292.9% | $3.29M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 70 | Fisher Asset Management ✦ | 44.56K | New | $3.04M | 0.0% | New | 1 | SEC ↗ |
| 71 | Creative Planning | 42.20K | +11.7% | $2.87M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 72 | Tudor Investment Corp Et Al | 42.17K | +469.0% | $2.87M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 73 | Massachusetts Financial Services Co… | 33.57K | -24.7% | $2.29M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 74 | Wells Fargo & Company/Mn | 30.33K | -65.1% | $2.07M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 75 | New York State Common Retirement… | 28.91K | 0.0% | $1.97M | 0.0% | Held | 2 | SEC ↗ |
| 76 | Victory Capital Management Inc | 27.25K | -51.8% | $1.86M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 77 | Two Sigma Investments ✦ | 27.11K | +11.5% | $1.85M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 78 | Zurcher Kantonalbank (Zurich… | 26.96K | +18.1% | $1.84M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 79 | Credit Agricole S A | 26.32K | 0.0% | $1.79M | 0.0% | Held | 2 | SEC ↗ |
| 80 | Lazard Asset Management Llc | 25.99K | +12.0% | $1.77M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 81 | Citigroup Inc | 22.15K | -32.2% | $1.51M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 82 | State Board Of Administration Of… | 20.21K | 0.0% | $1.38M | 0.0% | Held | 2 | SEC ↗ |
| 83 | Cwm, Llc | 17.89K | -2.3% | $1.22M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 84 | Fifth Third Bancorp | 17.45K | +12362.1% | $1.19M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 85 | ProShare Advisors LLC | 15.97K | -14.6% | $1.09M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 86 | Wealth Enhancement Advisory… | 11.13K | +21.7% | $754,077 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 87 | Cerity Partners LLC | 10.86K | -3.1% | $739,620 | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 88 | Mariner, LLC | 10.57K | -14.0% | $719,545 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 89 | Simplex Trading, Llc | 10.18K | +1781.7% | $693,563 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 90 | Bank Of Montreal /Can/ | 8.29K | +42.5% | $565,138 | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 91 | Mml Investors Services, Llc | 7.63K | +6.7% | $519,900 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 92 | Allianz Asset Management GmbH | 7.40K | -49.3% | $504,162 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 93 | HighTower Advisors, LLC | 6.78K | +110.5% | $461,581 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 94 | Aviva Plc | 6.76K | +55.6% | $460,831 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 95 | Quantinno Capital Management LP | 6.61K | +6.0% | $450,067 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 96 | Robeco Institutional Asset… | 6.25K | +7.4% | $425,948 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 97 | American Century Companies Inc | 5.00K | +9.0% | $340,854 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 98 | Amundi | 4.50K | New | $306,585 | 0.0% | New | 1 | SEC ↗ |
| 99 | Mirae Asset Global Investments Co.… | 4.32K | +10.7% | $294,117 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 100 | CIBC Bancorp USA Inc. | 4.00K | n/a | $272,588 | 0.0% | n/c | 1 | SEC ↗ ×3 |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| Qube Research & Technologies… | $35.01M | 0.1% |
| Loomis Sayles & Co L P | $33.63M | 0.0% |
| Balyasny Asset Management L.P. | $31.38M | 0.1% |
| Group One Trading Llc | $3.59M | 0.1% |
| Fisher Asset Management | $3.04M | 0.0% |
| Amundi | $306,585 | 0.0% |
Exited
| Point72 Asset Management | $85.72M | was 0.1% |
| Pacer Advisors, Inc. | $17.90M | was 0.0% |
| Adage Capital Partners | $10.71M | was 0.0% |
| Alyeska Investment Group, L.P. | $5.49M | was 0.0% |
| Hrt Financial Lp | $5.09M | was 0.0% |
| Norges Bank | $4.09M | was 0.0% |
| Millennium Management | $1.71M | was 0.0% |
| Gotham Asset Management | $1.24M | was 0.0% |
| Bridgewater Associates | $1.23M | was 0.0% |
| Man Group plc | $1.23M | was 0.0% |
| Walleye Trading LLC | $1.21M | was 0.0% |
| Tidal Investments LLC | $1.09M | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 348 holders, 95.15M shares, $6.33B 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)
Oct 14
SCHMERTZLER MICHAEL
Director · 382 sh · $22,973
Oct 14
SCHMERTZLER MICHAEL
Director · 2.12K sh · $126,063
Oct 09
Boulding Mark Elliott
Officer · 192 sh · $12,338
Oct 07
SCHMERTZLER MICHAEL
Director · 2.45K sh · $155,091
Oct 07
SCHMERTZLER MICHAEL
Director · 53 sh · $3,389
Oct 06
Boulding Mark Elliott
Officer · 435 sh · $27,910
Oct 05
Boulding Mark Elliott
Officer · 1.64K sh · $104,881
Sep 17
SCHMERTZLER MICHAEL
Director · 376 sh · $25,737
Sep 17
SCHMERTZLER MICHAEL
Director · 9.62K sh · $652,796
Sep 16
SCHMERTZLER MICHAEL
Director · 7.01K sh · $471,854
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: Q1 2026 ·
Methodology ·
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