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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, Q1 2026

Institutional positions in PTC Therapeutics, Inc. as of Mar 31, 2026. 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
352
+6 vs. Q4 2025
Shares held
95.5M
+11.7M (+14.0%) vs. Q4 2025
Total value
$6.51B
+$140.8M (+2.2%) vs. Q4 2025
New holders
61
145 more added
Sold out
55
102 more reduced

7 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2025: 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 holdersQ1 2026: 352 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 heldQ1 2026: $6.51B
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, Q1 2026

Shares, value and share of portfolio for each institution holding PTC Therapeutics, Inc.; share changes are against Q4 2025.

Institutions holding PTCT in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Legal & General Group Plc343,380$23.4M0.01%−22,885−6.2%Reduced
Mackenzie Financial Corp345,683$23.6M0.03%+108,774+45.9%Added
Panagora Asset Management Inc351,370$23.9M0.09%−8,467−2.4%Reduced
Defilade Capital Management, L.P.376,165$25.6M3.60%+376,165New
Rockefeller Capital Management L.P.384,672$26.2M0.05%−20,864−5.1%Reduced
Citadel Advisors LLC385,199$26.2M0.02%−769,256−66.6%Reduced
Manufacturers Life Insurance Company, The425,240$29.0M0.02%−1,266−0.3%Reduced
Parkman Healthcare Partners LLC431,364$29.4M3.05%+271,185+169.3%Added
Balyasny Asset Management LLC460,564$31.4M0.06%+460,564New
Marshall Wace, LLP460,638$31.4M0.03%+212,892+85.9%Added
Price T Rowe Associates Inc475,148$32.4M0.00%+15,034+3.3%Added
Loomis Sayles & Co L P493,603$33.6M0.05%+493,603New
Qube Research & Technologies Ltd513,823$35.0M0.05%+513,823New
Principal Financial Group Inc515,001$35.1M0.02%+36,104+7.5%Added
Bank of New York Mellon Corp522,763$35.6M0.01%+8,083+1.6%Added
Renaissance Technologies LLC533,300$36.3M0.06%−74,289−12.2%Reduced
Vanguard Fiduciary Trust Co553,658$37.7M0.01%+553,658New
Ensign Peak Advisors, Inc582,318$39.7M0.07%+301,746+107.5%Added
Lord, Abbett & Co. LLC617,121$42.0M0.14%−9,985−1.6%Reduced
Boston Partners647,482$44.1M0.05%+159,505+32.7%Added
Nuveen, LLC667,019$45.4M0.01%−32,171−4.6%Reduced
Morgan Stanley674,134$45.9M0.00%−231,058−25.5%Reduced
Jupiter Asset Management Ltd711,457$48.5M0.26%+350,298+97.0%Added
Charles Schwab Investment Management Inc731,642$49.8M0.01%−3,291−0.4%Reduced
Woodline Partners LP744,988$50.8M0.19%+173,435+30.3%Added
Northern Trust Corp806,276$54.9M0.01%+36,856+4.8%Added
Goldman Sachs Group Inc827,631$56.4M0.01%−195,460−19.1%Reduced
Invesco Ltd.865,451$59.0M0.01%+431,166+99.3%Added
SG Americas Securities, LLC879,701$59.9M0.07%−14,760−1.7%Reduced
Dimensional Fund Advisors LP890,715$60.7M0.01%+263,623+42.0%Added
BNP Paribas Arbitrage, SA920,476$62.7M0.04%+91,814+11.1%Added
Palo Alto Investors LP921,607$62.8M9.60%+17,691+2.0%Added
Driehaus Capital Management LLC1,015,772$69.2M0.51%−120,416−10.6%Reduced
Franklin Resources Inc1,121,388$76.4M0.02%−165,297−12.8%Reduced
Pictet Asset Management Holding SA1,183,720$80.1M0.08%+204,763+20.9%Added
Jefferies Financial Group Inc.1,354,459$92.3M1.13%−304,022−18.3%Reduced
UBS Group AG1,364,768$93.0M0.02%+400,110+41.5%Added
Tang Capital Management LLC1,500,000$102.2M5.19%00.0%Unchanged
FMR LLC1,528,362$104.1M0.01%−152,854−9.1%Reduced
D. E. Shaw & Co., Inc.1,640,381$111.8M0.09%−104,610−6.0%Reduced
Hood River Capital Management LLC1,664,559$113.4M1.14%+661,484+65.9%Added
Bank of America Corp1,886,841$128.6M0.01%+455,284+31.8%Added
Armistice Capital, LLC2,074,449$141.3M4.67%−727,420−26.0%Reduced
Geode Capital Management, LLC2,209,954$150.6M0.01%+193,892+9.6%Added
Toronto Dominion Bank3,025,963$206.2M0.40%−1,112,252−26.9%Reduced
Vanguard Capital Management LLC3,676,256$250.5M0.01%+3,676,256New
Wellington Management Group LLP3,942,610$268.6M0.05%+75,230+1.9%Added
State Street Corp4,346,519$296.1M0.01%+140,393+3.3%Added
Vanguard Portfolio Management LLC4,804,594$327.3M0.02%+4,804,594New
Janus Henderson Group PLC7,193,433$490.0M0.23%+2,342,101+48.3%Added
RTW Investments, LP7,746,415$527.8M5.25%00.0%Unchanged
BlackRock, Inc.12,948,717$882.2M0.02%+169,652+1.3%Added
Point72 Asset Management, L.P.0$00.00%−1,128,551−100.0%Sold out
Avoro Capital Advisors LLC0$00.00%−685,000−100.0%Sold out
MPM Oncology Impact Management LP0$00.00%−430,013−100.0%Sold out
Pacer Advisors, Inc.0$00.00%−235,653−100.0%Sold out
Adage Capital Partners GP, L.L.C.0$00.00%−141,000−100.0%Sold out
Ikarian Capital, LLC0$00.00%−118,657−100.0%Sold out
TrimTabs Asset Management, LLC0$00.00%−75,757−100.0%Sold out
Hillsdale Investment Management Inc.0$00.00%−75,706−100.0%Sold out
Alyeska Investment Group, L.P.0$00.00%−72,307−100.0%Sold out
EAM Investors, LLC0$00.00%−71,735−100.0%Sold out
HRT Financial LP0$00.00%−67,064−100.0%Sold out
Boothbay Fund Management, LLC0$00.00%−39,735−100.0%Sold out
Harbor Capital Advisors, Inc.0$00.00%−39,005−100.0%Sold out
Hussman Strategic Advisors, Inc.0$00.00%−25,200−100.0%Sold out
Jackson Creek Investment Advisors LLC0$00.00%−22,603−100.0%Sold out
Millennium Management LLC0$00.00%−22,494−100.0%Sold out
Verition Fund Management LLC0$00.00%−20,200−100.0%Sold out
Walleye Capital LLC0$00.00%−18,074−100.0%Sold out
Gotham Asset Management, LLC0$00.00%−16,259−100.0%Sold out
Bridgewater Associates, LP0$00.00%−16,229−100.0%Sold out
Man Group plc0$00.00%−16,185−100.0%Sold out
Walleye Trading LLC0$00.00%−15,926−100.0%Sold out
Toroso Investments, LLC0$00.00%−14,380−100.0%Sold out
FORA Capital, LLC0$00.00%−13,925−100.0%Sold out
Two Sigma Advisers, LP0$00.00%−11,900−100.0%Sold out
B. Metzler seel. Sohn & Co. AG0$00.00%−11,712−100.0%Sold out
Natixis Advisors, L.P.0$00.00%−11,456−100.0%Sold out
ExodusPoint Capital Management, LP0$00.00%−11,057−100.0%Sold out
Gsa Capital Partners LLP0$00.00%−10,754−100.0%Sold out
Sigma Planning Corp0$00.00%−10,010−100.0%Sold out
Brevan Howard Capital Management LP0$00.00%−5,473−100.0%Sold out
Banque Pictet & Cie SA0$00.00%−5,057−100.0%Sold out
Headlands Technologies LLC0$00.00%−4,591−100.0%Sold out
Dark Forest Capital Management LP0$00.00%−4,347−100.0%Sold out
Quest Partners LLC0$00.00%−4,104−100.0%Sold out
PharVision Advisers, LLC0$00.00%−3,934−100.0%Sold out
Jane Street Group, LLC0$00.00%−3,925−100.0%Sold out
Bridgefront Capital, LLC0$00.00%−3,185−100.0%Sold out
LPL Financial LLC0$00.00%−2,964−100.0%Sold out
Shelton Capital Management0$00.00%−2,769−100.0%Sold out
Sicart Associates LLC0$00.00%−2,745−100.0%Sold out
Colony Group, LLC0$00.00%−2,737−100.0%Sold out
Asset Management One Co.,Ltd.0$00.00%−1,771−100.0%Sold out
Public Employees Retirement System of Ohio0$00.00%−1,658−100.0%Sold out
Daiwa Securities Group Inc.0$00.00%−230−100.0%Sold out
Quantbot Technologies LP0$00.00%−221−100.0%Sold out
Danske Bank A/S0$00.00%−200−100.0%Sold out
SageView Advisory Group, LLC0$00.00%−125−100.0%Sold out