PTC 治療公司
US ˙ NasdaqGS ˙ US69366J2006

SecurityPTCT / PTC Therapeutics, Inc.
InstitutionQUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series
Latest Disclosed Ownership134,663 shares
Latest Disclosed Value $ 6,576,940
QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series reports 3.75% increase in ownership of PTCT / PTC Therapeutics, Inc.

On August 26, 2025 - QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series filed a NPORT-P form disclosing ownership of 134,663 shares of PTC Therapeutics, Inc. (US:PTCT) valued at $6,576,941 USD as of June 30, 2025. The entity filed a previous NPORT-P on May 28, 2025 disclosing 129,794 shares of PTC Therapeutics, Inc.. This represents a change in shares of 3.75% during the quarter. The current value of the position is $9,557,033 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2025-08-26 2025-06-30 NP PTC Therapeutics EC US69366J2006 134,663 4,869 3.75 6,577 -0.57 0.1477
2025-05-28 2025-03-31 NP PTC Therapeutics EC US69366J2006 129,794 1,378 1.07 6,614 14.11 0.1587
2025-02-25 2024-12-31 NP PTC Therapeutics EC US69366J2006 128,416 -20,883 -13.99 5,797 4.66 0.1266
2024-11-26 2024-09-30 NP PTC Therapeutics EC US69366J2006 149,299 13,512 9.95 5,539 33.38 0.1048
2024-08-26 2024-06-30 NP PTC Therapeutics EC US69366J2006 135,787 7,706 6.02 4,152 11.46 0.0846
2024-05-28 2024-03-31 NP PTC Therapeutics EC US69366J2006 128,081 0 0.00 3,726 5.55 0.0777
2024-02-26 2023-12-31 NP PTC Therapeutics EC US69366J2006 128,081 7,958 6.62 3,530 31.14 0.0753
2023-11-28 2023-09-30 NP PTC Therapeutics EC US69366J2006 120,123 -2,479 -2.02 2,692 -46.03 0.0702
2023-08-25 2023-06-30 NP PTC Therapeutics EC US69366J2006 122,602 11,002 9.86 4,986 -7.75 0.1183
2023-05-26 2023-03-31 NP PTC Therapeutics EC US69366J2006 111,600 765 0.69 5,406 27.78 0.1439
2023-02-24 2022-12-31 NP PTC Therapeutics EC US69366J2006 110,835 -3,580 -3.13 4,231 -26.35 0.1164
2022-11-25 2022-09-30 NP PTC Therapeutics EC US69366J2006 114,415 5,887 5.42 5,744 32.11 0.1646
2022-08-25 2022-06-30 NP PTC Therapeutics EC US69366J2006 108,528 438 0.41 4,348 7.81 0.1201
2022-05-26 2022-03-31 NP PTC Therapeutics EC US69366J2006 108,090 2,509 2.38 4,033 -4.11 0.0939
2022-02-25 2021-12-31 NP PTC Therapeutics EC US69366J2006 105,581 -3,509 -3.22 4,205 3.60 0.0912
2021-11-24 2021-09-30 NP PTC Therapeutics EC US69366J2006 109,090 5,276 5.08 4,059 -7.50 0.0894
2021-08-26 2021-06-30 NP PTC Therapeutics EC US69366J2006 103,814 10,246 10.95 4,388 -0.95 0.0941
2021-05-27 2021-03-31 NP PTC Therapeutics EC US69366J2006 93,568 -3,151 -3.26 4,430 -24.94 0.1005
2021-02-25 2020-12-31 NP PTC Therapeutics EC US69366J2006 96,719 -4,609 -4.55 5,903 24.59 0.1512
2020-11-25 2020-09-30 NP PTC Therapeutics EC US69366J2006 101,328 -3,103 -2.97 4,737 -10.59 0.1520
2020-08-27 2020-06-30 NP PTC Therapeutics EC US69366J2006 104,431 4,254 4.25 5,299 18.58 0.1732
2020-06-01 2020-03-31 NP PTC Therapeutics EC US69366J2006 100,177 4,416 4.61 4,469 -2.85 0.1827
2020-02-27 2019-12-31 NP PTC Therapeutics EC 69366J200 95,761 8,122 9.27 4,599 55.21 0.1383
2019-11-27 2019-09-30 NP PTC Therapeutics EC US69366J2006 87,639 87,639 2,964 0.0980
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.