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CLOSED · 01:15 ET
Market ClerkRecap
Tue Sep 22 · markets closed1 signal on Sep 21234 insider buys this week · $209.5MCIRO short report next: Sep 29The week ahead

SION

Sionna Therapeutics, Inc.
NASDAQ · HEALTH CARE · PHARMACEUTICAL PREPARATIONS
6.00
+0.04 +0.67%
USD · close Sep 21
WatchTime Machine

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Work order
36
FLAG · insiders 25, shorts 47
Insiders, 90 days
−$21.8M
net selling · 0 buys, 2 sells
Congress, 90 days
0 / 0
no disclosures naming it
Big money
0 / 15
none of the tracked funds disclose it
Calls on record
0
nobody we score has called it yet
MKT CAP $271.3MP/E —DIV YIELD —FCF YIELD -28.09%REV TTM —NET INCOME −$97.4MNET CASH —52W 4.50 – 51.04SEC XBRL · TTM TO Invalid Date

One year, everything drawn on

251 SESSIONS · DAILY CLOSES
5537190.78Sep 17 · Director sell $252KSep 17 · Director sell $21.6MAug 6 · 10-Q filed (Q2 2026)Aug 6 · 10-Q filed (Q1 2026)Mar 2 · 10-K filed (FY 2025)Mar 2 · 10-K filed (Q4 2025)Nov 5 · 10-Q filed (Q3 2025)Aug 6 · 10-Q filed (Q2 2025)Aug 6 · 10-Q filed (Q1 2025)Mar 2 · 10-K filed (FY 2024)Mar 2 · 10-K filed (Q4 2024)Nov 5 · 10-Q filed (Q3 2024)Nov 5 · 10-Q filed (Q2 2024)Nov 5 · 10-Q filed (Q1 2024)SEP 2025OCTJAN 2026APRJUL
Insider buyInsider sellCongress buy, above the lineCongress sell, below10-K / 10-Q filedHOVER A MARKER FOR THE FILING
THE WORK ORDER · 2026-09-22
Insiders (90d): $21.8M net selling
Shorts (latest report): 4.3M short · +51K last period
Every line of the math
36FLAG

Congress is trading it

No STOCK Act disclosure names SION.

Insider activity

ALL 2
DateInsiderTypeValue
Sep 17DirectorSell$252K
Sep 17DirectorSell$21.6M
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