SEC 13F Intelligence

Rtw Investments, LP / PTCT

Rtw Investments, LP’s Ptc Therapeutics Inc Position

Does Rtw Investments, LP own Ptc Therapeutics Inc (PTCT)? Yes — 7.75M shares worth $528M (+5.25% of its 13F portfolio) as of Q1 2026.

Position Value
$528M
Q1 2026
Shares
7.75M
% of Portfolio
+5.25%
Quarters Held
30
currently held

Position History PTCT

Reported value by quarter
Q4 ’18: $66MQ4 ’18Q1 ’19: $95MQ2 ’19: $141MQ3 ’19: $123MQ4 ’19: $184MQ4 ’19Q1 ’20: $175MQ2 ’20: $201MQ3 ’20: $187MQ4 ’20: $258MQ4 ’20Q1 ’21: $251MQ2 ’21: $224MQ3 ’21: $197MQ4 ’21: $211MQ4 ’21Q1 ’22: $195MQ2 ’22: $202MQ3 ’22: $282MQ4 ’22: $214MQ4 ’22Q1 ’23: $344MQ2 ’23: $294MQ3 ’23: $162MQ4 ’23: $205MQ4 ’23Q1 ’24: $216MQ2 ’24: $226MQ3 ’24: $274MQ4 ’24: $334MQ4 ’24Q1 ’25: $381MQ2 ’25: $378MQ3 ’25: $475MQ4 ’25: $588MQ4 ’25Q1 ’26: $528Mfilingsflow.com
QuarterSharesValue% of Portfolio
Q1 20267.75M$528M+5.25%
Q4 20257.75M$588M+5.89%
Q3 20257.75M$475M+5.86%
Q2 20257.75M$378M+5.39%
Q1 20257.48M$381M+5.83%
Q4 20247.39M$334M+5.05%
Q3 20247.39M$274M+3.97%
Q2 20247.39M$226M+3.50%
Q1 20247.42M$216M+3.19%
Q4 20237.42M$205M+3.20%
Q3 20237.24M$162M+3.42%
Q2 20237.24M$294M+5.60%
Q1 20237.09M$344M+7.16%
Q4 20225.62M$214M+4.38%
Q3 20225.62M$282M+6.50%
Q2 20225.05M$202M+5.22%
Q1 20225.22M$195M+4.03%
Q4 20215.29M$211M+3.08%
Q3 20215.29M$197M+2.97%
Q2 20215.29M$224M+3.38%
Q1 20215.29M$251M+3.91%
Q4 20204.22M$258M+4.32%
Q3 20203.99M$187M+4.49%
Q2 20203.96M$201M+5.66%
Q1 20203.93M$175M+7.55%
Q4 20193.83M$184M+6.95%
Q3 20193.65M$123M+7.34%
Q2 20193.14M$141M+7.54%
Q1 20192.51M$95M+6.46%
Q4 20181.92M$66M+6.05%

Common-stock position only; options are excluded. Quarters where the fund filed no 13F or reported no position are absent. See Rtw Investments, LP’s full portfolio or all institutional holders of PTCT.