PTCT Institutional Ownership
Who owns Ptc Therapeutics, Inc. and what the big funds did with it last quarter, from every SEC 13F filing. 386 funds reported holding PTCT at Jun 30, 2026, together owning 137.2% of the company.
- ▲217 buying vs 158 selling
- ▲Held by funds +17.8 pts
- ▲Funds holding +31
- ▲Superinvestors: 3 added, 0 cut
- ●Put/call not meaningful
What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.
Funds holding and ownership
8 quartersQuarter over quarter
all 13F filers| Q2 2026 | This quarter | Q1 2026 | Change |
|---|---|---|---|
| Funds holding | 386 | 355 | +8.7% |
| In funds' top 10 | 7 | 6 | +16.7% |
| 13F shares | 115M | 99.7M | +14.9% |
| Held by funds | 137.2% | 119.3% | +17.8 pts |
| New positions | 75 | 53 | +41.5% |
| Increased | 142 | 143 | −0.7% |
| Reduced | 113 | 104 | +8.7% |
| Sold out | 45 | 56 | −19.6% |
| Calls (shares) | 710K | 692K | +2.6% |
| Puts (shares) | 30K | 0 | – |
| Put/call ratio | 0.04 | 0.00 | – |
Buyers vs sellers
adding or new vs cutting or sold outSuperinvestors in PTCT
All superinvestors →
Who owns PTCT
share of fund held shares- Index and passive funds29.6%
- Active managers and hedge funds59.7%
- Banks and brokers9.5%
- Pensions, insurers and other1.2%
The top 10 holders own 56.5% of all PTCT shares that funds reported. Groups are our own grouping of filers by name.
Put/call ratio
funds' options, market makers left outAbove 1 means funds hold more puts than calls, a sign of hedging or bets on a fall. Options are valued at the underlying shares.
Filed so far for Q3 2026
95 funds changed their position- Principal Financial Group IncTrimmed−137K sh
- Capricorn Fund Managers LtdSold out−64K sh
- Burney Co/Sold out−37K sh
- Y-Intercept (Hong Kong) LtdNew+37K sh
- Exchange Traded Concepts, LLCSold out−26K sh
🔒 Free account: see all 20.
Top holders
Q2 2026| # | Fund | Of company | Shares | Value | Change |
|---|---|---|---|---|---|
| 1 | Ovata Capital Management Ltd | 16.85% | 14.1M | $21.8M | +14.1M |
| 2 | BlackRock, Inc. | 16.72% | 14M | $1.1B | +1M |
| 3 | Rtw Investments, LP | 9.27% | 7.7M | $632M | 0 |
| 4 | Jupiter Topco LLC | 8.66% | 7.2M | $590M | – |
| 5 | Vanguard Portfolio Management LLC | 5.90% | 4.9M | $402M | +124K |
| 6 | State Street Corp | 5.50% | 4.6M | $375M | +252K |
| 7 | Wellington Management Group LLP | 4.94% | 4.1M | $337M | +186K |
| 8 | Vanguard Capital Management LLC | 4.48% | 3.7M | $305M | +63K |
| 9 | Geode Capital Management, LLC | 2.64% | 2.2M | $180M | −2,578 |
| 10 | Toronto Dominion Bank | 2.59% | 2.2M | $177M | −860K |
- Westfield Capital Management Co LP+2M sh+$160M
- William Blair Investment Management, LLC+1.7M sh+$141M
- Fuller & Thaler Asset Management, Inc.+1.2M sh+$94.4M
- BlackRock, Inc.+1M sh+$82.9M
- Blue Sparrow, LLC /DE+860K sh+$70.2M
- Price T Rowe Associates Inc /md/+639K sh+$52.2M
- Arrowstreet Capital, Limited Partnership+543K sh+$44.3M
- American Century Companies Inc+496K sh+$40.5M
- UBS Group AG−1.1M sh−$89.9M
- Armistice Capital, LLC−1M sh−$81.8M
- Toronto Dominion Bank−860K sh−$70.2M
- Woodline Partners LP−745K sh−$50.8M
- Bnp Paribas Financial Markets−542K sh−$44.2M
- Balyasny Asset Management L.P.−440K sh−$35.9M
- Bank of America Corp /de/−435K sh−$35.4M
- Mackenzie Financial Corp−314K sh−$25.6M
PTCT institutional ownership FAQ
Who owns the most PTCT stock?
In Q2 2026 13F filings the largest holder of PTCT was Ovata Capital Management Ltd, followed by BlackRock, Inc. and Rtw Investments, LP. Index fund managers are usually the biggest holders of large companies.
What percentage of PTCT is owned by institutions?
Funds that file 13F reports held 137.2% of PTCT's shares at Jun 30, 2026, compared with 119.3% a quarter earlier. That counts every manager with more than $100 million in US stocks.
Are hedge funds buying PTCT?
In Q2 2026, 217 funds bought PTCT (75 of them new positions) and 158 sold (45 sold out completely). Among well known investors, 3 added and 0 cut. Our fund sentiment for PTCT is strongly bullish.
What is PTCT's institutional put/call ratio?
Funds reported $2.4M of PTCT puts against $57.9M of calls, a put/call ratio of 0.04 (0.00 the quarter before). Market makers and bank trading desks are left out, since their options are mostly hedges.
How current is this PTCT ownership data?
13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.