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PTCT · Ptc Therapeutics, Inc.

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$69.30 -2.10 (-2.94%) At close · Sep 4
Market Cap
$5.96B
Shares
83.46M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 385
Total Value: $8,272,166,374
Total Shares: 101,449,094
Showing 1–100 of 394 holdings by value · page 1 of 4

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 385 13F filers · Δ vs Mar 31, 2026
Top Holder
13.8%
Sep 2023 → Jun 2026 · range 9.9% – 13.8%
+0.3 pts
Top 5
37.9%
Sep 2023 → Jun 2026 · range 37.9% – 50.2%
−0.5 pts
Top 10
51.9%
Sep 2023 → Jun 2026 · range 51.9% – 70.5%
−2.3 pts
HHI
427
Sep 2023 → Jun 2026 · range 411 – 614
Broadly held−9

Quarterly Activity

vs Mar 31, 2026
New
76
Increased
144
Decreased
113
Sold Out
46
Unchanged
52
Holder count: +30
Institutional value: +25.9%
Shares held: +5.2%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 394
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1070081 CUSIP 69366J200 13F (30d) 271 filings 263 filers Visit website Investor relations