Back to RA CAPITAL MANAGEMENT, L.P. RA CAPITAL MANAGEMENT, L.P.

SIONSION
6 quarters

Position history for RA CAPITAL MANAGEMENT, L.P.RA CAPITAL MANAGEMENT, L.P.'s holdings in SIONNA THERAPEUTICS INC

RA CAPITAL MANAGEMENT, L.P. holds 9.9M shares of SION (SIONNA THERAPEUTICS INC), worth $435.7M as of 2026-Q2. SION represents 3.8% of RA CAPITAL MANAGEMENT, L.P.'s portfolio.

Current Value

$435.7M

Current Shares

9.9M

Total Value Change

+$326.5M

Total Shares Change

-540,277

Quarter-by-Quarter History
QuarterActionSharesChangeValueWeightPriceConviction
2026-Q2
Latest
Unchanged
9.9M
0.0%
$435.7M3.8%$43.99
0
2026-Q1
Unchanged
9.9M
0.0%
$397.1M4.2%$34.09
0
2025-Q4
Decreased
9.9M
-5.2%
$407.5M4.2%$41.39
0
2025-Q3
Unchanged
10.4M
0.0%
$307.2M3.8%$29.52
0
2025-Q2
Unchanged
10.4M
0.0%
$181.2M3.1%$15.84
0
2025-Q1
New
10.4M
-
$109.3M1.8%$11.56
69

Other major holders of SION: VIKING GLOBAL INVESTORS LP, JPMORGAN CHASE & CO

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