PTC THERAPEUTICS INC (PTCT) Institutional Ownership Changes & 13F Activity
PTC THERAPEUTICS INC (PTCT). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Armistice Capital, Llc, Invesco Ltd., Toronto Dominion Bank, Blue Sparrow, Llc, and Price T Rowe Associates Inc.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Manufacturers Life Insurance Company, The | Buy | +16,717 | +3.9% | 441,957 | $36.05M | Q2 2026 | Sep 09, 2026 |
| Parkside Financial Bank & Trust | Buy | +2 | +2.7% | 76 | $6.20K | Q2 2026 | Sep 04, 2026 |
| Citadel Advisors Llc | Buy | +362,623 | +94.1% | 747,822 | $61.00M | Q2 2026 | Sep 02, 2026 |
| Allianz Asset Management Gmbh | Buy | +223,702 | +3023.0% | 231,102 | $18.85M | Q2 2026 | Sep 02, 2026 |
| Corient Private Wealth Llc | Buy | +15,095 | — | 15,095 | $1.23M | Q2 2026 | Aug 27, 2026 |
| California State Teachers Retirement System | Sell | -2,587 | -3.1% | 81,733 | $6.67M | Q2 2026 | Aug 24, 2026 |
| Assenagon Asset Management S.A. | Sell | -54,498 | -88.8% | 6,899 | $562.75K | Q2 2026 | Aug 21, 2026 |
| Mercer Global Advisors Inc | Sell | -18,767 | -37.3% | 31,590 | $2.58M | Q2 2026 | Aug 19, 2026 |
| Palo Alto Investors Lp | Sell | -2,761 | -0.3% | 918,846 | $74.95M | Q2 2026 | Aug 19, 2026 |
| Fulcrum Asset Management Llp | Buy | +1,274 | — | 1,274 | $103.92K | Q2 2026 | Aug 18, 2026 |
| Empowered Funds, Llc | Buy | +23,365 | +40.3% | 81,271 | $6.63M | Q2 2026 | Aug 17, 2026 |
| Capstone Investment Advisors, Llc | Buy | +5,881 | — | 5,881 | $479.71K | Q2 2026 | Aug 17, 2026 |
| Jefferies Financial Group Inc. | Buy | +2,583 | +0.2% | 1,357,042 | $110.69M | Q2 2026 | Aug 17, 2026 |
| Armistice Capital, Llc | Sell | -1,003,054 | -48.4% | 1,071,395 | $87.39M | Q2 2026 | Aug 14, 2026 |
| Invesco Ltd. | Buy | +941,581 | — | 941,581 | $76.80M | Q2 2026 | Aug 14, 2026 |
| Toronto Dominion Bank | Sell | -860,117 | -28.4% | 2,165,846 | $176.67M | Q2 2026 | Aug 14, 2026 |
| Blue Sparrow, Llc | Buy | +860,100 | +451.3% | 1,050,700 | $85.71M | Q2 2026 | Aug 14, 2026 |
| Price T Rowe Associates Inc | Buy | +639,368 | +134.6% | 1,114,516 | $90.91M | Q2 2026 | Aug 14, 2026 |
| Balyasny Asset Management L.P. | Sell | -439,959 | -95.5% | 20,605 | $1.68M | Q2 2026 | Aug 14, 2026 |
| Bank Of America Corp | Sell | -434,564 | -23.0% | 1,452,277 | $118.46M | Q2 2026 | Aug 14, 2026 |
| Driehaus Capital Management Llc | Buy | +424,335 | +41.8% | 1,440,107 | $117.47M | Q2 2026 | Aug 14, 2026 |
| Goldman Sachs Group Inc | Sell | -209,384 | -25.3% | 618,247 | $50.43M | Q2 2026 | Aug 14, 2026 |
| Qube Research & Technologies Ltd | Sell | -202,449 | -39.4% | 311,374 | $25.40M | Q2 2026 | Aug 14, 2026 |
| Susquehanna International Group, Llp | Buy | +187,724 | +90.3% | 395,662 | $32.27M | Q2 2026 | Aug 14, 2026 |
| Wellington Management Group Llp | Buy | +185,663 | +4.7% | 4,128,273 | $336.74M | Q2 2026 | Aug 14, 2026 |
| Ameriprise Financial Inc | Buy | +171,874 | — | 171,874 | $14.02M | Q2 2026 | Aug 14, 2026 |
| Schonfeld Strategic Advisors Llc | Sell | -170,980 | -53.7% | 147,425 | $12.03M | Q2 2026 | Aug 14, 2026 |
| Hudson Bay Capital Management Lp | Buy | +156,108 | +4253.6% | 159,778 | $13.03M | Q2 2026 | Aug 14, 2026 |
| Longaeva Partners L.P. | Buy | +111,803 | — | 111,803 | $9.12M | Q2 2026 | Aug 14, 2026 |
| Loomis Sayles & Co L P | Buy | +96,771 | +19.6% | 590,374 | $48.16M | Q2 2026 | Aug 14, 2026 |
Frequently asked questions about PTCT activity
Which institutional owners are buying PTCT?
Institutional owners buying PTCT include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in PTCT activity?
"Buy" means an investor increased their reported position in PTCT compared to the prior reporting period. This reflects growing exposure to PTC THERAPEUTICS INC (PTCT) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in PTCT increasing?
Institutional interest in PTCT can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
Related PTCT Institutional Insights
- PTCT Overview
- PTCT 13F Institutional Holders
- PTCT Top Institutional Shareholders
- Healthcare Sector Institutional Ownership
- Healthcare Sector Portfolio Overlap
- Institutional Portfolio Overlap & Shared Holdings
- Most Bought Healthcare Stocks By Institutional Investors
- Most Sold Healthcare Stocks By Institutional Investors
- PTCT Insider Trading & SEC Form 4 Activity
- PTCT Articles
- Top Institutional Investor Stock Rankings