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PTC Therapeutics, Inc.

PTCT
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001070081

In the last 90 days, PTC Therapeutics, Inc. insiders filed 0 open-market purchases and 11 sales; 382 institutions reported holding it in 13F filings for Q2 2026, worth $8.20B in total; no superinvestor holds it.

13F holders, Q2 2023

Institutional positions in PTC Therapeutics, Inc. as of Jun 30, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
206
+4 vs. Q1 2023
Shares held
81.1M
+2.60M (+3.3%) vs. Q1 2023
Total value
$3.30B
−$509.2M (−13.4%) vs. Q1 2023
New holders
31
84 more added
Sold out
27
65 more reduced

1 institution that held it in Q1 2023 haven't filed for Q2 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2023: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting PTCT on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2023: 206 institutions
Q1 2021: 208 institutionsQ2 2021: 183 institutionsQ3 2021: 184 institutionsQ4 2021: 179 institutionsQ1 2022: 184 institutionsQ2 2022: 182 institutionsQ3 2022: 213 institutionsQ4 2022: 203 institutionsQ1 2023: 203 institutionsQ2 2023: 206 institutionsQ3 2023: 181 institutionsQ4 2023: 174 institutionsQ1 2024: 184 institutionsQ2 2024: 199 institutionsQ3 2024: 203 institutionsQ4 2024: 240 institutionsQ1 2025: 261 institutionsQ2 2025: 284 institutionsQ3 2025: 294 institutionsQ4 2025: 353 institutionsQ1 2026: 352 institutionsQ2 2026: 382 institutions
Value heldQ2 2023: $3.30B
Q1 2021: $3.52BQ2 2021: $3.13BQ3 2021: $2.77BQ4 2021: $3.00BQ1 2022: $2.76BQ2 2022: $2.97BQ3 2022: $3.83BQ4 2022: $2.94BQ1 2023: $3.81BQ2 2023: $3.30BQ3 2023: $1.83BQ4 2023: $2.33BQ1 2024: $2.48BQ2 2024: $2.44BQ3 2024: $2.93BQ4 2024: $3.51BQ1 2025: $4.02BQ2 2025: $3.90BQ3 2025: $5.07BQ4 2025: $7.04BQ1 2026: $6.51BQ2 2026: $8.20B
Institutions holding PTCT and their total value by quarter
QuarterHoldersValue
Q2 2026382$8.20B
Q1 2026352$6.51B
Q4 2025353$7.04B
Q3 2025294$5.07B
Q2 2025284$3.90B
Q1 2025261$4.02B
Q4 2024240$3.51B
Q3 2024203$2.93B
Q2 2024199$2.44B
Q1 2024184$2.48B
Q4 2023174$2.33B
Q3 2023181$1.83B
Q2 2023206$3.30B
Q1 2023203$3.81B
Q4 2022203$2.94B
Q3 2022213$3.83B
Q2 2022182$2.97B
Q1 2022184$2.76B
Q4 2021179$3.00B
Q3 2021184$2.77B
Q2 2021183$3.13B
Q1 2021208$3.52B

Institutions, Q2 2023

Shares, value and share of portfolio for each institution holding PTC Therapeutics, Inc.; share changes are against Q1 2023.

Institutions holding PTCT in Q2 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Wellington Management Group LLP6,786,364$276.0M0.05%−211,327−3.0%Reduced
BlackRock Inc.6,866,343$279.3M0.01%+596,353+9.5%Added
RTW Investments, LP7,235,196$294.3M5.60%+141,898+2.0%Added
Vanguard Group Inc7,552,477$307.2M0.01%−35,305−0.5%Reduced
FMR LLC10,253,124$417.0M0.03%+669,956+7.0%Added
George Kaiser Family Foundation53,572––00.0%Unchanged
Woodline Partners LP0$00.00%−421,393−100.0%Sold out
Holocene Advisors, LP0$00.00%−242,623−100.0%Sold out
Susquehanna Fundamental Investments, LLC0$00.00%−91,468−100.0%Sold out
Balyasny Asset Management LLC0$00.00%−91,436−100.0%Sold out
Endurant Capital Management LP0$00.00%−53,247−100.0%Sold out
Boothbay Fund Management, LLC0$00.00%−49,885−100.0%Sold out
Eventide Asset Management, LLC0$00.00%−34,047−100.0%Sold out
HighVista Strategies LLC0$00.00%−16,535−100.0%Sold out
Worth Venture Partners, LLC0$00.00%−8,956−100.0%Sold out
Y-Intercept (Hong Kong) Ltd0$00.00%−7,739−100.0%Sold out
LSP Investment Advisors, LLC0$00.00%−6,500−100.0%Sold out
Kinneret Advisory, LLC0$00.00%−2,293−100.0%Sold out
Walleye Trading LLC0$00.00%−5,426−100.0%Sold out
Captrust Financial Advisors0$00.00%−5,286−100.0%Sold out
Raymond James & Associates0$00.00%−5,183−100.0%Sold out
Wolverine Trading, LLC0$00.00%−4,909−100.0%Sold out
Bank of Montreal0$00.00%−4,632−100.0%Sold out
Two Sigma Securities, LLC0$00.00%−4,282−100.0%Sold out
Harvest Fund Management Co., Ltd0$00.00%−366−100.0%Sold out
TCI Wealth Advisors, Inc.0$00.00%−354−100.0%Sold out
Baillie Gifford & Co0$00.00%−278−100.0%Sold out
Spire Wealth Management0$00.00%−142−100.0%Sold out
Crewe Advisors LLC0$00.00%−119−100.0%Sold out
EverSource Wealth Advisors, LLC0$00.00%−29−100.0%Sold out
International Assets Investment Management, LLC0$00.00%−16−100.0%Sold out
Schubert & Co0$00.00%−9−100.0%Sold out
Steward Financial Group LLC0$00.00%−16−100.0%Sold out
Zebra Capital Management LLC––––Not filed