Ticker · CUSIP 69366J200

PTCT

PTC THERAPEUTICS INC

Healthcare·Biotechnology

···Share

Holders (tracked)

Combined shares

9,448,559

Combined value

$717.71M

Last close

$72.43

Quarter

2025Q4

Price is -4.6% vs the avg quarter-end implied price across tracked holders.

Price · 1Y$72.43+25.04 (+52.84%)H $86.25 · L $36.19 · Avg Vol 1.3M

Tracked holders · last 8 quarters

+2 vs previous quarter over the last 8.

SEC event timeline

22 events

Paul Tudor Jones (Tudor Investment) opened position2026-02-17
+7,412 shares · 2025Q4
Position
Ken Griffin (Citadel Advisors) trimmed2026-02-17
−576,570 shares · 2025Q4
Position
D.E. Shaw & Co. trimmed2026-02-17
−429,617 shares · 2025Q4
Position
AQR Capital Management added2026-02-17
+10,671 shares · 2025Q4
Position
Two Sigma Investments trimmed2026-02-17
−31 shares · 2025Q4
Position
Izzy Englander (Millennium Mgmt) trimmed2026-02-17
−1,033,987 shares · 2025Q4
Position
Steve Cohen (Point72) trimmed2026-02-17
−92,091 shares · 2025Q4
Position
T. Rowe Price added2026-02-17
+1,784 shares · 2025Q4
Position
Wellington Management trimmed2026-02-17
−1,051,239 shares · 2025Q4
Position
Ray Dalio (Bridgewater Associates) added2026-02-13
+4,291 shares · 2025Q4
Position
Renaissance Technologies trimmed2026-02-12
−319,711 shares · 2025Q4
Position
Norges Bank (Norway SWF) opened position2026-02-10
+53,807 shares · 2025Q4
Position
Steve Cohen (Point72) opened position2025-11-14
+1,220,642 shares · 2025Q3
Position
Two Sigma Investments trimmed2025-11-14
−26,510 shares · 2025Q3
Position
D.E. Shaw & Co. trimmed2025-11-14
−263,089 shares · 2025Q3
Position
AQR Capital Management trimmed2025-11-14
−205,860 shares · 2025Q3
Position
Izzy Englander (Millennium Mgmt) added2025-11-14
+672,079 shares · 2025Q3
Position
T. Rowe Price added2025-11-14
+4,728 shares · 2025Q3
Position
Wellington Management added2025-11-14
+224,481 shares · 2025Q3
Position
Renaissance Technologies trimmed2025-11-13
−36,000 shares · 2025Q3
Position
Ray Dalio (Bridgewater Associates) opened position2025-11-13
+11,938 shares · 2025Q3
Position
Norges Bank (Norway SWF) exited2025-11-12
−15,100 shares · 2024Q3
Position

Insider activity

No insider transactions in the last 30 days.

View full insider history for PTCT →

Follow-the-investor returns

If you'd copied each holder of PTCT…

Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.

Investor	First in	Cost basis	Return	Position value today
Two Sigma Investments	2017Q4	$30.54	+137.2%	$1.8M
Paul Tudor Jones (Tudor Investment)	2016Q1	$32.89	+120.2%	$537K
Renaissance Technologies	2016Q1	$36.08	+100.8%	$44.0M
Wellington Management	2016Q1	$41.33	+75.3%	$280.1M
Steve Cohen (Point72)	2016Q3	$42.00	+72.5%	$81.7M
D.E. Shaw & Co.	2016Q2	$43.36	+67.0%	$126.4M
T. Rowe Price	2018Q2	$44.44	+63.0%	$33.3M
AQR Capital Management	2016Q1	$46.73	+55.0%	$24.8M
Izzy Englander (Millennium Mgmt)	2016Q1	$53.57	+35.2%	$1.6M
Ray Dalio (Bridgewater Associates)	2025Q3	$65.23	+11.0%	$1.2M
Ken Griffin (Citadel Advisors)	2016Q1	$75.86	-4.5%	$83.6M
Ken Griffin (Citadel Advisors)	2016Q1	$75.86	-4.5%	$83.6M
Ken Griffin (Citadel Advisors)	2016Q1	$75.86	-4.5%	$83.6M
Norges Bank (Norway SWF)	2016Q1	$4098.27	-98.2%	$3.9M

Who moved on this name in 2025Q4

Position changes reported for the latest quarter, grouped by direction.

New positions2

Norges Bank (Norway SWF)
+53,807
$4.1M
Paul Tudor Jones (Tudor Investment)
+7,412
$563K

Added to3

AQR Capital Management
+10,671
$811K
Ray Dalio (Bridgewater Associates)
+4,291
$326K
T. Rowe Price
+1,784
$136

Trimmed7

Wellington Management
−1,051,239
$79.9M
Izzy Englander (Millennium Mgmt)
−1,033,987
$78.5M
Ken Griffin (Citadel Advisors)
−576,570
$43.8M
D.E. Shaw & Co.
−429,617
$32.6M
Renaissance Technologies
−319,711
$24.3M
Steve Cohen (Point72)
−92,091
$7.0M
Two Sigma Investments
−31
$2K

Exited0

—

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.

Quarter	Holders	Shares	Combined value	Δ holders
2022Q1	10	18,073,966	$21.65B	—
2022Q2	13	16,767,764	$27.92B	+3
2022Q3	15	18,309,704	$919.1M	+2
2022Q4	13	17,730,351	$676.8M	-2
2023Q1	12	16,706,313	$809.3M	-1
2023Q2	12	17,364,317	$706.2M	—
2023Q3	12	10,238,443	$229.4M	—
2023Q4	12	10,884,150	$300.0M	—
2024Q1	11	18,387,364	$534.9M	-1
2024Q2	15	19,940,964	$609.8M	+4
2024Q3	12	12,010,759	$445.6M	-3
2024Q4	11	5,315,348	$239.9M	-1
2025Q1	12	11,323,373	$577.0M	+1
2025Q2	10	10,488,499	$512.3M	-2
2025Q3	12	12,887,040	$790.9M	+2
2025Q4	14	9,448,559	$717.7M	+2

Who owns PTCT

14 super-investors · 2025Q4

Tracked stake

9.45M

Combined value

$718M

% of shares outstanding

—

shares-out unknown

Quarter action mix

New2Added3Trim9

#	Manager	Shares	Value	% of book	Last action
1	Wellington Management	3.87M	$294M	0.1%	Trim−1.05M
2	D.E. Shaw & Co.	1.74M	$133M	0.1%	Trim−429.6K
3	Ken Griffin Citadel Advisors	1.15M	$88M	0.0%	Trim−576.6K
4	Steve Cohen Point72	1.13M	$86M	0.1%	Trim−92.1K
5	Renaissance Technologies	607.6K	$46M	0.1%	Trim−319.7K
6	T. Rowe Price	460.1K	$35M	0.0%	Added+1.8K
7	AQR Capital Management	341.9K	$26M	0.0%	Added+10.7K
8	Norges Bank Norway SWF	53.8K	$4M	0.0%	New+53.8K
9	Two Sigma Investments	24.3K	$2M	0.0%	Trim−31
10	Izzy Englander Millennium Mgmt	22.5K	$2M	0.0%	Trim−1.03M
11	Ray Dalio Bridgewater Associates	16.2K	$1M	0.0%	Added+4.3K
12	Ken Griffin Citadel Advisors	11.7K	$889K	0.0%	Trim−576.6K
13	Ken Griffin Citadel Advisors	7.6K	$577K	0.0%	Trim−576.6K
14	Paul Tudor Jones Tudor Investment	7.4K	$563K	0.0%	New+7.4K

Recent moves

20 transactions

TRIMTwo Sigma Investments
−31 · 2025Q4
TRIMSteve Cohen (Point72)
−92,091 · 2025Q4
NEWPaul Tudor Jones (Tudor Investment)
+7,412 · 2025Q4
ADDAQR Capital Management
+10,671 · 2025Q4
TRIMIzzy Englander (Millennium Mgmt)
−1,033,987 · 2025Q4
TRIMD.E. Shaw & Co.
−429,617 · 2025Q4
TRIMKen Griffin (Citadel Advisors)
−576,570 · 2025Q4
TRIMWellington Management
−1,051,239 · 2025Q4
ADDT. Rowe Price
+1,784 · 2025Q4
ADDRay Dalio (Bridgewater Associates)
+4,291 · 2025Q4
TRIMRenaissance Technologies
−319,711 · 2025Q4
NEWNorges Bank (Norway SWF)
+53,807 · 2025Q4
NEWSteve Cohen (Point72)
+1,220,642 · 2025Q3
TRIMAQR Capital Management
−205,860 · 2025Q3
ADDIzzy Englander (Millennium Mgmt)
+672,079 · 2025Q3
TRIMTwo Sigma Investments
−26,510 · 2025Q3
TRIMD.E. Shaw & Co.
−263,089 · 2025Q3
ADDT. Rowe Price
+4,728 · 2025Q3
ADDWellington Management
+224,481 · 2025Q3
NEWRay Dalio (Bridgewater Associates)
+11,938 · 2025Q3

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