PTCT

Ptc Therapeutics INC

-$494.3M

Net Activity

Institutions Holding

350

Popularity Rank

#1677

Avg Weight

0.15%

Total Value

$6.5B

Ownership Trend

350 institutions currently hold PTCT, with 196 net buyers and 161 net sellers this quarter.

Institutional Moves

Institutional Moves (Q1 2026)

Neutral

Based on recent trading activity

Net Selling Institutions

161

Net Buying Institutions

196

Key Holders

Key Holders

Top 5 by Value

BI
BlackRock, Inc.
$882.2M
RI
Rtw Investments, LP
$527.8M
JH
Janus Henderson Group PLC
$490.0M
VP
Vanguard Portfolio Management LLC
$327.3M
SS
State Street CORP
$296.1M

Top 5 by Conviction

PA
Palo Alto Investors LP
9.60%
DC
Defilade Capital Management, L.P.
5.77%
RI
Rtw Investments, LP
5.25%
TC
Tang Capital Management LLC
5.19%
PH
Parkman Healthcare Partners LLC
3.03%
View all 350 holding institutions

Quarterly Activity

Recent Activity

+$3.8B

Total Buy Value

$2.4B

Total Sell Value

New buy52
Trim104
Add144
Sold out57

196

Net Buyers

161

Net Sellers

Insider Trading (Form 4)

Form 144 Pre-Sale Notices

13

Filings (90d)

$15.23M

Total Est. Value

183K shares

Planned Shares

Last Filed 2026-07-14
FilerFiling DateEst. Value
Gravier Pierre2026-07-14$281K
Almstead Neil Gregory2026-07-09$222K
Smith Mary L.2026-07-09$1.43M
Almstead Neil Gregory2026-07-07$2.19M
Boulding Mark Elliott2026-07-06$427K
Almstead Neil Gregory2026-07-06$1.91M
Almstead Neil Gregory2026-06-26$693K
Almstead Neil Gregory2026-06-25$1.80M
Almstead Neil Gregory2026-06-24$453K
Almstead Neil Gregory2026-06-22$1.92M

Form 144 is a planned sale notice, not an executed transaction. Form 144 Tracker。

Beneficial Ownership (13D/13G)

No Schedule 13D/13G filings for this ticker

Material Events (8-K)

No Form 8-K filings for this ticker

FAQ

Who are the top institutional investors holding PTC THERAPEUTICS INC (PTCT)?
Major stakeholders currently include BlackRock, Inc. ($882.2M), Rtw Investments, LP ($527.8M), Janus Henderson Group PLC ($490.0M). Based on the latest 13F filings, there are a total of 350 tracked investment funds and institutions maintaining positions in PTCT.
What is the overall institutional sentiment toward PTCT recently?
Institutional sentiment appears Bearish (Net Selling). During the most recent reporting quarter, the stock experienced a net outflow of $494.3M, driven by 196 managers accumulating shares while 161 reduced their exposure.
Which institutions have been selling or reducing their PTCT positions?
In the latest period, 104 funds trimmed their holdings, and 57 managers completely exited their positions. The aggregate reported sell value was $2.4B.
Are there any notable investors adding PTCT to their portfolios?
Yes, buying activity remains notable. 52 institutions opened new positions in {ticker}, and 144 existing holders added to their shares. The total reported buy value for the quarter amounted to $3.8B.

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