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SION
Sionna Therapeutics
SION
SION
78 hedge funds and large institutions have $1.26B invested in Sionna Therapeutics in 2025 Q3 according to their latest regulatory filings, with 19 funds opening new positions, 20 increasing their positions, 19 reducing their positions, and 6 closing their positions.
New
Increased
Maintained
Reduced
Closed
more first-time investments, than exits
New positions opened: | Existing positions closed:
more capital invested
Capital invested by funds: $ → $
more funds holding
Funds holding: →
more repeat investments, than reductions
Existing positions increased: | Existing positions reduced:
0% more funds holding in top 10
Funds holding in top 10: 4 → 4 (0)
1.41% less ownership
Funds ownership: 98.47% → 97.06% (-1.4%)
Holders
78
Holding in Top 10
4
Calls
–
Puts
–
Top Buyers
| 1 | +$11.2M | |
| 2 | +$5.32M | |
| 3 | +$4.51M | |
| 4 |
Millennium Management
New York
|
+$4.35M |
| 5 |
State Street
Boston,
Massachusetts
|
+$2.52M |
Top Sellers
| 1 | -$16.7M | |
| 2 | -$5.61M | |
| 3 | -$5.28M | |
| 4 |
T. Rowe Price Associates
Baltimore,
Maryland
|
-$4.86M |
| 5 |
Prudential Financial
Newark,
New Jersey
|
-$2.35M |