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SION

Sionna Therapeutics Inc · NASDAQ NMS - GLOBAL MARKET · Biotechnology

$36.95+$0.19 (+0.52%)

Prices delayed up to 5 minutes

AC Intelligence

AC Intelligence

AC Intelligence for SION is being prepared.

Key Stats

Key Stats

Open

$38.36

Day High

$38.37

Day Low

$36.18

Prev Close

$36.76

Volume

0

Avg Volume

384.1K

Day Change

+$0.19

Change %

+0.52%

Fundamentals

Fundamentals

P/B

5.98

EPS (TTM)

$-1.70

Market Cap

$1.7B

52-Wk Range

$7.25 — $45.00

Earnings History

Insider Activity

Who Owns This Stock

Who Owns SION

Other71.8%57 holders
Tactical / Macro9.7%4 holders
Passive / Index6.9%8 holders
Quality / Compounder5.2%10 holders
Dealer / Bank3.6%13 holders

Based on Q4 2025 13F filings + AC behavioral model

100 institutional holders

Top Holders

1.RA CAPITAL MANAGEMENT, L.P.
$407493.6B
2.TPG GP A, LLC
$277487.7B
3.ORBIMED ADVISORS LLC
$146526.5B
4.Two Sigma
0.0%$131449.7B
-17.1%$123239.1B
6.ENAVATE SCIENCES GP, LLC
$101946.2B
7.PERCEPTIVE ADVISORS LLC
$48508.1B
8.JENNISON ASSOCIATES LLC
+11.8%$45882.5B
9.Citadel Advisors
$44732.6B
10.Vanguard Group
+997.5%$44053.4B
11.JPMORGAN CHASE & CO
$42171.7B
0.0%$39930.1B
13.Aberdeen Group plc
-11.6%$34556.0B
14.BlackRock, Inc.
+133.9%$32215.5B
15.State Street
$28526.3B
16.EVENTIDE ASSET MANAGEMENT, LLC
$26290.3B
17.BAKER BROS. ADVISORS LP
0.0%$16456.0B
18.BlackRock, Inc.
+15.1%$15856.3B
19.Geode Capital Management
+19.4%$13665.2B
20.Siren, L.L.C.
-7.7%$12342.0B

Institutional Pressure

Market Regime:Strong Risk-Off (-0.62)
SELLINGBUYING
Mild Selling Pressure
Other(71.8%)
Tactical / Macro(9.7%)
Reducing rapidly
Passive / Index(6.9%)
Holds
Quality / Compounder(5.2%)
Holds through
Dealer / Bank(3.6%)
Facilitating
Income / Defensive(0.4%)
Inflows (flight to yield)
Growth / Momentum(0.1%)
Likely trimming
Systematic / Quant(0.0%)
De-risking (mechanical)
Activist(0.0%)
May accumulate

12% passive + quality floor won't sell.

Updated daily · Based on Q4 2025 filings + AC behavioral model

Sentiment Signals

Sentiment Signals

Insider ActivityNo insider transactions in last 90 daysSEC Form 4
↑↑Analyst Consensus14 buy, 1 hold, 1 sellFinnhub
↑↑Inst. Flows109 increased/new, 24 decreased/exited (13F)AC 13F Analysis

Sources: SEC Form 4, Finnhub, AC 13F Analysis

On AcidCapitalist

Data provided by Finnhub. Prices delayed up to 5 minutes.