SEC 13F Intelligence

Rock Springs Capital Management LP / EPZMEUR

Rock Springs Capital Management LP’s Epizyme Inc Position

Does Rock Springs Capital Management LP own Epizyme Inc (EPZMEUR)? Not currently — the last reported position was 7.49M shares worth $11M in Q2 2022; the fund’s latest 13F (Q1 2026) no longer reports it.

Position Value
$11M
Q2 2022
Shares
7.49M
% of Portfolio
+0.32%
Quarters Held
15
position exited

Position History EPZMEUR

Reported value by quarter
Q4 ’18: $10MQ4 ’18Q1 ’19: $22MQ2 ’19: $23MQ2 ’19Q3 ’19: $19MQ4 ’19: $50MQ4 ’19Q1 ’20: $30MQ2 ’20: $34MQ2 ’20Q3 ’20: $30MQ4 ’20: $28MQ4 ’20Q1 ’21: $24MQ2 ’21: $25MQ2 ’21Q3 ’21: $18MQ4 ’21: $10MQ4 ’21Q1 ’22: $8MQ2 ’22: $11MQ2 ’22filingsflow.com
QuarterSharesValue% of Portfolio
Q2 20227.49M$11M+0.32%
Q1 20227.27M$8M+0.21%
Q4 20213.81M$10M+0.22%
Q3 20213.59M$18M+0.39%
Q2 20213.01M$25M+0.49%
Q1 20212.80M$24M+0.53%
Q4 20202.55M$28M+0.59%
Q3 20202.55M$30M+0.77%
Q2 20202.10M$34M+0.93%
Q1 20201.96M$30M+1.25%
Q4 20192.05M$50M+1.59%
Q3 20191.85M$19M+0.76%
Q2 20191.85M$23M+0.84%
Q1 20191.75M$22M+0.84%
Q4 20181.61M$10M+0.47%

Common-stock position only; options are excluded. Quarters where the fund filed no 13F or reported no position are absent. See Rock Springs Capital Management LP’s full portfolio or all institutional holders of EPZMEUR.