Company · Ownership research

PTC THERAPEUTICS, INC. PTCT

CIK 0001070081 · CUSIP 69366J200

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 69366J200 (PTCT), not CUSIP 69366J900 (PTCT), CUSIP 69366J950 (PTCT), and does not merge CUSIPs.

This page lists the top 20 of 185 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	VANGUARD GROUP INC CIK 102909 · View history	$272.54M 9,369,014 shares	0.01%	+568.17K(+6.50%)Added	SEC filing ↗ May 10, 2024	▾
02	WELLINGTON MANAGEMENT GROUP LLP CIK 902219 · View history	$258.95M 8,901,565 shares	0.05%	-915.04K(-9.30%)Reduced	SEC filing ↗ May 15, 2024	▾
03	BlackRock Inc. CIK 1364742 · View history	$220.07M 7,565,086 shares	0.01%	-69.04K(-0.90%)Reduced	SEC filing ↗ May 10, 2024	▾
04	RTW INVESTMENTS, LP CIK 1493215 · View history	$215.96M 7,423,970 shares	3.19%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2024	▾
05	ARMISTICE CAPITAL, LLC CIK 1601086 · View history	$196.76M 6,764,000 shares	5.24%	-100.00K(-1.50%)Reduced	SEC filing ↗ May 15, 2024	▾
06	STATE STREET CORP CIK 93751 · View history	$119.55M 4,109,792 shares	0.01%	-524.16K(-11.30%)Reduced	SEC filing ↗ May 15, 2024	▾
07	Camber Capital Management LP CIK 1444043 · View history	$116.36M 4,000,000 shares	4.07%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2024	▾
08	COWEN AND COMPANY, LLC CIK 48966 · View history	$108.38M 3,725,626 shares	4.23%	0(0.00%)Unchanged	SEC filing ↗ May 3, 2024	▾
09	JANUS HENDERSON GROUP PLC CIK 1274173 · View history	$106.74M 3,669,816 shares	0.06%	+1.06M(+40.50%)Added	SEC filing ↗ May 15, 2024	▾
10	MORGAN STANLEY CIK 895421 · Amended · View history	$60.01M 2,063,041 shares	0.00%	+816.78K(+65.50%)Added	SEC filing ↗ Oct 17, 2024	▾
11	FMR LLC CIK 315066 · View history	$50.24M 1,727,062 shares	0.00%	-87.36K(-4.80%)Reduced	SEC filing ↗ May 13, 2024	▾
12	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$48.39M 1,663,068 shares	0.00%	+51.84K(+3.20%)Added	SEC filing ↗ May 13, 2024	▾
13	JACOBS LEVY EQUITY MANAGEMENT, INC CIK 884414 · View history	$46.71M 1,605,841 shares	0.21%	+282.42K(+21.30%)Added	SEC filing ↗ May 15, 2024	▾
14	FRANKLIN RESOURCES INC CIK 38777 · View history	$43.10M 1,481,488 shares	0.01%	+55.11K(+3.90%)Added	SEC filing ↗ May 13, 2024	▾
15	FIRST TRUST ADVISORS LP CIK 1125816 · View history	$41.76M 1,435,480 shares	0.04%	+1.44MNew	SEC filing ↗ May 13, 2024	▾
16	ADAGE CAPITAL PARTNERS GP, L.L.C. CIK 1165408 · View history	$36.94M 1,270,000 shares	0.07%	+377.76K(+42.30%)Added	SEC filing ↗ May 15, 2024	▾
17	D. E. Shaw & Co., Inc. CIK 1009207 · Amended · View history	$35.66M 1,225,748 shares	0.05%	-121.22K(-9.00%)Reduced	SEC filing ↗ May 15, 2024	▾
18	Blackstone Inc. CIK 1393818 · View history	$31.86M 1,095,290 shares	0.14%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2024	▾
19	Pictet Asset Management Holding SA CIK 1993888 · View history	$24.17M 826,076 shares	0.03%	-40.48K(-4.70%)Reduced	SEC filing ↗ May 14, 2024	▾
20	RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history	$22.15M 761,400 shares	0.03%	+138.50K(+22.20%)Added	SEC filing ↗ May 13, 2024	▾

Showing 20 / 185 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

185

Cancelled or null records excluded

Disclosed shares

85,228,799

Not deduplicated across managers

Disclosed value

$2.48B

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

PTC THERAPEUTICS, INC. · Q1 2024

Explore all 185 reporting institutions.

This page includes 20 of 185 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

Download CSV
Earlier quarters
Advanced screening & filtering
API & AI access

Already have an account?

＋ New accounts get free API credits to explore data beyond ownership filings.

For AI agents & developers

The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 185 reporting institutions; totals use the complete disclosed data.

Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP / CLI.

MCP  https://api.akkrudata.ai/mcp

akkru_institutional_holdings
{"action":"holders","cusip":"69366J200","quarter":"2024Q1","type":"positions","page_size":100}

Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.

MCP endpoint: https://api.akkrudata.ai/mcp
API / MCP / CLI documentation: /documents
llms.txt: /llms.txt

Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.