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PTCT · Ptc Therapeutics, Inc. · Shareholders & Ownership

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$62.90 -0.02 (-0.03%)
Market Cap
$5.14B
Shares
83.46M
Volume · Oct 20 965.8K Avg daily vol (3M) 1.12M

Every disclosed holder of PTCT in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

Who Owns PTCT

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions

No chart: the summed disclosures exceed shares outstanding, so they are not parts of one whole.

Holder group Shares % Out
Institutional (13F) 100,520,946 120.44%
Insiders (Forms 3, 4, 5) 2,522,615 3.02%
13D/G-only blocks 3,200,000 3.83%
Remaining 22,782,759 -27.30%
Registered funds (N-PORT, not summed) 41,931,866 50.24%

Shares outstanding: 83,460,802, the issuer's latest cover-page count restated onto today's split basis.

Remaining is negative: the summed disclosures exceed shares outstanding, as when filings are dated at different times or holders that do not disclose their links count the same shares. It is flagged, not clipped.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of PTCT

# Holder Shares
1
BlackRock, Inc.
13F CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
13,964,554
1.1
iShares Core S&P Small-Cap ETF
Fund S000004313 · Registered fund · Jun 30, 2026
iShares Trust, not summed
4,997,138
1.2
iShares Russell 2000 ETF
Fund S000004344 · Registered fund · Jun 30, 2026
iShares Trust, not summed
2,127,944
1.3
iShares S&P Small-Cap 600 Growth ETF
Fund S000004314 · Registered fund · Jun 30, 2026
iShares Trust, not summed
745,407
1.4
iShares Russell 2000 Growth ETF
Fund S000004343 · Registered fund · Jun 30, 2026
iShares Trust, not summed
653,446
1.5
iShares Biotechnology ETF
Fund S000004350 · Registered fund · Jun 30, 2026
iShares Trust, not summed
567,871
2
RTW INVESTMENTS, LP
13F CIK 1493215 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
7,746,415
3
Jupiter Topco LLC
13F CIK 2146052 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
7,236,402
3.1
Janus Henderson Small/Mid Cap Growth Alpha ETF
Fund S000052564 · Registered fund · Jul 31, 2026
Janus Detroit Street Trust, not summed
145,033
3.2
Janus Henderson Small Cap Growth Alpha ETF
Fund S000052563 · Registered fund · Jul 31, 2026
Janus Detroit Street Trust, not summed
54,825
4
VANGUARD PORTFOLIO MANAGEMENT LLC
13F CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
4,928,111
5
STATE STREET CORP
13F CIK 93751 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
4,598,952
5.1
State Street(R) SPDR(R) S&P(R) Biotech ETF
Fund S000010018 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
1,357,466
5.2
State Street(R) SPDR(R) Portfolio S&P 600(TM) Small Cap ETF
Fund S000041317 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
762,247
5.3
State Street(R) SPDR(R) S & P 600(TM) Small Cap Growth ETF
Fund S000006990 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
470,904
5.4
STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO
Fund S000050332 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
27,800
5.5
State Street(R) SPDR(R) Portfolio S&P 1500(R) Composite Stock Market ETF
Fund S000006973 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
15,575
6
WELLINGTON MANAGEMENT GROUP LLP
13F CIK 902219 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
4,128,273
6.1
VANGUARD HEALTH CARE FUND
Fund S000002922 · Registered fund · Jul 31, 2026
VANGUARD SPECIALIZED FUNDS, not summed
2,310,268
7
VANGUARD CAPITAL MANAGEMENT LLC
13F CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
3,739,127
8
Camber Capital Management LP
13G CIK 1444043 · Unknown · Dec 31, 2024
Rule 13d-1(c), passive investor
3,200,000
9
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
2,635,817
10
GEODE CAPITAL MANAGEMENT, LLC
13F CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
2,207,376
11
TORONTO DOMINION BANK
13F CIK 947263 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
2,165,846
12
WESTFIELD CAPITAL MANAGEMENT CO LP
13F CIK 1177719 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,956,156
13
VANGUARD SMALL-CAP INDEX FUND
Fund S000002845 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
1,902,975
14
Hood River Capital Management LLC
13F CIK 1578177 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,738,613
14.1
Hood River Small-Cap Growth Fund
Fund S000012813 · Registered fund · Jun 30, 2026
Manager Directed Portfolios, not summed
832,255
14.2
Hood River New Opportunities Fund
Fund S000086255 · Registered fund · Jun 30, 2026
Manager Directed Portfolios, not summed
150,336
15
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
13F CIK 1644956 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,722,688
15.1
William Blair Small-Mid Cap Growth Fund
Fund S000008603 · Registered fund · Jun 30, 2026
WILLIAM BLAIR FUNDS, not summed
184,200
15.2
William Blair Small Cap Growth Fund
Fund S000008602 · Registered fund · Jun 30, 2026
WILLIAM BLAIR FUNDS, not summed
180,710
16
D. E. Shaw & Co., Inc.
13F CIK 1009207 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
1,548,919
17
TANG CAPITAL MANAGEMENT LLC
13F CIK 1232621 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
1,500,000
18
SCHMERTZLER MICHAEL
Insider CIK 1288952 · Oct 14, 2026
Director, issuer-wide
1,454,860
19
BANK OF AMERICA CORP /DE/
13F CIK 70858 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
1,452,277
20
Driehaus Capital Management LLC
13F CIK 938206 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,440,107
20.1
Driehaus Small Cap Growth Fund
Fund S000058261 · Registered fund · Jun 30, 2026
Driehaus Mutual Funds, not summed
189,439
20.2
Driehaus Small/Mid Cap Growth Fund
Fund S000068519 · Registered fund · Jun 30, 2026
Driehaus Mutual Funds, not summed
18,099
21
FMR LLC
13F CIK 315066 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
1,398,261
21.1
Fidelity Small Cap Index Fund
Fund S000033638 · Registered fund · Jul 31, 2026
Fidelity Salem Street Trust, not summed
905,253
21.2
Fidelity Extended Market Index Fund
Fund S000006021 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
412,750
21.3
Strategic Advisers Fidelity U.S. Total Stock Fund
Fund S000061481 · Registered fund · May 31, 2026
Fidelity Rutland Square Trust II, not summed
331,587
21.4
Select Biotechnology Portfolio
Fund S000007486 · Registered fund · May 31, 2026
Fidelity Select Portfolios, not summed
160,411
21.5
Fidelity Enhanced Small Cap Core ETF
Fund S000081807 · Registered fund · Jun 30, 2026
Fidelity Covington Trust, not summed
154,723
22
Jefferies Financial Group Inc.
13F CIK 96223 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
1,357,042
23
FULLER & THALER ASSET MANAGEMENT, INC.
13F CIK 1082327 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,156,819
24
Pictet Asset Management Holding SA
13F CIK 1993888 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
1,147,844
25
PRICE T ROWE ASSOCIATES INC /MD/
13F CIK 80255 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,114,516
25.1
T. Rowe Price New Horizons Fund, Inc.
Fund S000002106 · Registered fund · Jun 30, 2026
T. ROWE PRICE NEW HORIZONS FUND, INC., not summed
351,500
25.2
T. Rowe Price Integrated U.S. Small-Cap Growth Equity Fund
Fund S000002074 · Registered fund · Jun 30, 2026
T. ROWE PRICE INTEGRATED EQUITY FUNDS, INC., not summed
303,472
25.3
T. Rowe Price Small-Cap Index Fund
Fund S000051327 · Registered fund · Jun 30, 2026
T. ROWE PRICE INDEX TRUST, INC., not summed
12,503
25.4
T. Rowe Price Extended Equity Market Index Fund
Fund S000002090 · Registered fund · Jun 30, 2026
T. ROWE PRICE INDEX TRUST, INC., not summed
11,180
26
MORGAN STANLEY
13F CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
1,103,675
26.1
E*TRADE No Fee Total Market Index Fund
Fund S000090722 · Registered fund · Jul 31, 2026
E Trade Trust, not summed
86
27
VANGUARD SMALL-CAP GROWTH INDEX FUND
Fund S000002846 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
1,096,792
28
ARMISTICE CAPITAL, LLC
13F CIK 1601086 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,071,395
29
Blue Sparrow, LLC /DE
13F CIK 2104539 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
1,050,700
30
FRANKLIN RESOURCES INC
13F CIK 38777 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,027,327
30.1
Franklin Biotechnology Discovery Fund
Fund S000006882 · Registered fund · Jul 31, 2026
Franklin Strategic Series, not summed
279,737
30.2
Franklin Small Cap Growth Fund
Fund S000006889 · Registered fund · Jul 31, 2026
Franklin Strategic Series, not summed
203,308
30.3
Franklin Genomic Advancements ETF
Fund S000067393 · Registered fund · Jun 30, 2026
Franklin Templeton ETF Trust, not summed
5,009
30.4
Franklin Small Cap Enhanced ETF
Fund S000097279 · Registered fund · Jun 30, 2026
Franklin Templeton ETF Trust, not summed
1,501
31
Janus Henderson Global Life Sciences Fund
Fund S000010494 · Registered fund · Jun 30, 2026
Janus Investment Fund, not summed
995,577
32
VANGUARD EXTENDED MARKET INDEX FUND
Fund S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
951,394
33
Invesco Ltd.
13F CIK 914208 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
941,581
33.1
Invesco S&P SmallCap Momentum ETF
Fund S000003024 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
639,425
33.2
Invesco Biotechnology & Genome ETF
Fund S000003026 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
103,541
33.3
Invesco RAFI US 1500 Small-Mid ETF
Fund S000013120 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
72,733
33.4
Invesco S&P SmallCap Health Care ETF
Fund S000028299 · Registered fund · May 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
56,239
33.5
Invesco S&P SmallCap 600 Revenue ETF
Fund S000064596 · Registered fund · May 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
29,328
34
Palo Alto Investors LP
13F CIK 1306923 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
918,846
35
NORTHERN TRUST CORP
13F CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
880,029
35.1
Small Cap Index Fund
Fund S000001245 · Registered fund · Jun 30, 2026
Northern Funds, not summed
41,915
35.2
Small Cap Value Fund
Fund S000001246 · Registered fund · Jun 30, 2026
Northern Funds, not summed
7,935
35.3
Small Cap Core Fund
Fund S000001244 · Registered fund · Jun 30, 2026
Northern Funds, not summed
7,119
35.4
FlexShares Morningstar US Market Factor Tilt Index Fund
Fund S000033312 · Registered fund · Jul 31, 2026
FlexShares Trust, not summed
4,108
36
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
790,112
36.1
Schwab U.S. Small-Cap ETF
Fund S000026636 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
386,068
36.2
Schwab Small-Cap Index Fund
Fund S000005912 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
201,432
36.3
Schwab Total Stock Market Index Fund
Fund S000005913 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
52,218
36.4
Schwab U.S. Broad Market ETF
Fund S000026631 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
47,658
36.5
Schwab Small-Cap Equity Fund
Fund S000005516 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
13,086
37
FULLERTHALER BEHAVIORAL SMALL-CAP GROWTH
Fund S000060086 · Registered fund · Jun 30, 2026
Capitol Series Trust, not summed
780,300
38
CITADEL ADVISORS LLC
13F CIK 1423053 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
747,822
39
RENAISSANCE TECHNOLOGIES LLC
13F CIK 1037389 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
723,500
40
Boston Partners
13F CIK 1386060 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
718,574
41
JUPITER ASSET MANAGEMENT LTD
13F CIK 1215838 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
707,450
42
MARSHALL WACE, LLP
13F CIK 1318757 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
704,787
43
JPMORGAN CHASE & CO
13F CIK 19617 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
684,042
44
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
13F CIK 1164508 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
654,382
45
DIMENSIONAL FUND ADVISORS LP
13F CIK 354204 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
637,704
45.1
Dimensional U.S. Small Cap ETF
Fund S000070906 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
224,327
45.2
U.S. CORE EQUITY 2 PORTFOLIO
Fund S000000980 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
53,665
45.3
Dimensional U.S. Core Equity 2 ETF
Fund S000070903 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
43,296
45.4
U.S. Social Core Equity 2 Portfolio
Fund S000018154 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
2,027
45.5
U.S. MICRO CAP PORTFOLIO
Fund S000000948 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
1,950
46
GOLDMAN SACHS GROUP INC
13F CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
618,247
46.1
Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF
Fund S000048296 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust, not summed
39,411
46.2
Goldman Sachs Absolute Return Tracker Fund
Fund S000020314 · Registered fund · Jun 30, 2026
GOLDMAN SACHS TRUST, not summed
7,517
46.3
Multi-Manager U.S. Small Cap Equity Fund
Fund S000051363 · Registered fund · Apr 30, 2026
Goldman Sachs Trust II, not summed
5,345
46.4
Goldman Sachs Small Cap Growth Insights Fund
Fund S000014930 · Registered fund · Jul 31, 2026
Goldman Sachs Trust, not summed
439
47
SG Americas Securities, LLC
13F CIK 1313360 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
605,581
48
LOOMIS SAYLES & CO L P
13F CIK 312348 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
590,374
48.1
Loomis Sayles Small Cap Growth Fund
Fund S000006705 · Registered fund · Jun 30, 2026
LOOMIS SAYLES FUNDS II, not summed
194,415
48.2
Loomis Sayles Small/Mid Cap Growth Fund
Fund S000049859 · Registered fund · Jun 30, 2026
LOOMIS SAYLES FUNDS II, not summed
30,666
49
LORD, ABBETT & CO. LLC
13F CIK 728100 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
590,074
49.1
LORD ABBETT DEVELOPING GROWTH FUND INC
Fund S000006834 · Registered fund · Jul 31, 2026
LORD ABBETT DEVELOPING GROWTH FUND, INC., not summed
426,506
49.2
Lord Abbett Micro-Cap Growth Fund
Fund S000007142 · Registered fund · Jul 31, 2026
LORD ABBETT SECURITIES TRUST, not summed
34,208
49.3
Developing Growth Portfolio
Fund S000028719 · Registered fund · Jun 30, 2026
LORD ABBETT SERIES FUND INC, not summed
10,228
49.4
Lord Abbett Health Care Fund
Fund S000064462 · Registered fund · Jul 31, 2026
LORD ABBETT SECURITIES TRUST, not summed
1,632
50
VANGUARD FIDUCIARY TRUST CO
13F CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
587,887

69 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 583 holders

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Key facts CIK 1070081 CUSIP 69366J200 13F (30d) 37 filings 36 filers Visit website Investor relations