SEC 13F Intelligence

Rock Springs Capital Management LP / AGIO

Rock Springs Capital Management LP’s Agios Pharmaceuticals Inc Position

Does Rock Springs Capital Management LP own Agios Pharmaceuticals Inc (AGIO)? Yes — 799.2K shares worth $27M (+1.59% of its 13F portfolio) as of Q1 2026.

Position Value
$27M
Q1 2026
Shares
799.2K
% of Portfolio
+1.59%
Quarters Held
29
currently held

Position History AGIO

Reported value by quarter
Q1 ’19: $8MQ1 ’19Q2 ’19: $9MQ3 ’19: $11MQ4 ’19: $31MQ1 ’20: $37MQ1 ’20Q2 ’20: $63MQ3 ’20: $55MQ4 ’20: $109MQ1 ’21: $131MQ1 ’21Q2 ’21: $142MQ3 ’21: $118MQ4 ’21: $87MQ1 ’22: $78MQ1 ’22Q2 ’22: $65MQ3 ’22: $86MQ4 ’22: $84MQ1 ’23: $61MQ1 ’23Q2 ’23: $76MQ3 ’23: $67MQ4 ’23: $48MQ1 ’24: $52MQ1 ’24Q2 ’24: $45MQ3 ’24: $31MQ4 ’24: $15MQ1 ’25: $10MQ1 ’25Q2 ’25: $33MQ3 ’25: $38MQ4 ’25: $22MQ1 ’26: $27MQ1 ’26filingsflow.com
QuarterSharesValue% of Portfolio
Q1 2026799.2K$27M+1.59%
Q4 2025799.2K$22M+1.12%
Q3 2025958.5K$38M+2.25%
Q2 2025989.7K$33M+2.05%
Q1 2025342.2K$10M+0.57%
Q4 2024471.1K$15M+0.59%
Q3 2024699.4K$31M+1.01%
Q2 20241.04M$45M+1.36%
Q1 20241.76M$52M+1.31%
Q4 20232.15M$48M+1.18%
Q3 20232.71M$67M+1.80%
Q2 20232.69M$76M+1.81%
Q1 20232.66M$61M+1.46%
Q4 20223.00M$84M+2.02%
Q3 20223.06M$86M+2.23%
Q2 20222.93M$65M+1.89%
Q1 20222.67M$78M+1.95%
Q4 20212.65M$87M+2.01%
Q3 20212.56M$118M+2.48%
Q2 20212.57M$142M+2.80%
Q1 20212.54M$131M+2.87%
Q4 20202.52M$109M+2.32%
Q3 20201.58M$55M+1.40%
Q2 20201.18M$63M+1.73%
Q1 20201.06M$37M+1.55%
Q4 2019641.5K$31M+0.97%
Q3 2019352.5K$11M+0.46%
Q2 2019170.5K$9M+0.31%
Q1 2019117.5K$8M+0.31%

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 AGIO.