🎉 Founding Member Beta — Join our Discord and get 3 months of Pro free. Learn more →

Sionna Therapeutics, Inc.

SION Healthcare
$6.25 +$0.31 (5.22%)
Market Cap: $282.58 M
Gurus Holding
3
Popularity Rank
#3208
% of Shares Held
7.23%
Net Activity (Q2 2026)
-$2.84 M

Guru Ownership Trend

Guru Analysis for Sionna Therapeutics, Inc. (SION)

Sionna Therapeutics, Inc. (SION), a key player in the Healthcare sector, continues to attract institutional attention.

As of Q2 2026, a total of 3 Super Investors (Gurus) hold positions in the company, with a combined stake valued at approximately $20.42 M.

Top institutional holders include Andreas Halvorsen and Steven Cohen.

Institutional sentiment is currently Slightly Bearish. This is evidenced by a $2.84 M net outflow during the quarter.

Recent activity highlights Paul Tudor Jones who opened a new position. Conversely, Steven Cohen reduced exposure by 63.9%.

Key Holders

Top 5 by Value

$140.56 M
$2.17 M
$993,074

Top 5 by Conviction

Recent Activity Breakdown (Q2 2026)

+$993,074
Total Buy Value
New Buys 1
Additions 0
-$3.84 M
Total Sell Value
Reductions 1
Sold Out 0

Guru Consensus (Q2 2026)

Based on recent activity
Net Sellers
1
Net Buyers
1

FAQs for Sionna Therapeutics, Inc. (SION)

Major holders include Andreas Halvorsen ($140.56 M), Steven Cohen ($2.17 M), Paul Tudor Jones ($993,074). According to the latest reported data, 3 tracked investment managers collectively hold approximately 3.27 M shares.

According to the latest 13F reporting period, sentiment appears Bearish (Net Selling). There was a net outflow of $2.84 M, with 1 managers increasing positions and 1 managers reducing holdings.

During the most recent reporting period, 1 managers trimmed their positions, while 0 fully exited SION. The total reported sell value was $3.84 M.

Yes, 1 managers opened new positions in SION, and 0 increased their existing holdings. The total reported buy value was $993,074.

Portfolio Manager % Portfolio Activity Shares Value Report Date
0.40% 3,195,181 $140.56 M Q2 2026
0.00% Reduce -63.9% 49,328 $2.17 M Q2 2026
0.00% New Buy 22,575 $993,074 Q2 2026
Date
Insider Name
Transaction
Value
Shares
Position / Chg
SEC Form