SION
insider transactionsSionna Therapeutics, Inc. — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Net shares · 30d
-101
0 buy · 101 sell
Net value · 30d
-$4.5K
$0 in · $4.5K out
Sentiment · 30d
Net selling
0% buying · 100% selling
Open-market trades · 30d
1
0 buy · 101 sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
-
Grant·A
Director
$0
17.3K sh
Own New
-
Grant·A
Director
$0
17.3K sh
Own New
-
Grant·A
Director
$0
17.3K sh
Own New
-
Grant·A
Director
$0
17.3K sh
Own New
-
Grant·A
Director
$0
17.3K sh
Own New
-
Sell·S
Director · 10b5-1
$4.5K
101 sh · $44.49
Own -0%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| Jun 17, 2026 | Joanne L. Viney | Grant A | 17.3K | $0 |
| Jun 17, 2026 | Laurie Stelzer | Grant A | 17.3K | $0 |
| Jun 17, 2026 | Peter A. Thompson | Grant A | 17.3K | $0 |
| Jun 17, 2026 | Joshua Resnick | Grant A | 17.3K | $0 |
| Jun 17, 2026 | Bruce Booth | Grant A | 17.3K | $0 |
| May 27, 2026 | Peter A. Thompson 10b5-1 | Sell S | 101 | $4.5K |
About SION insider trading
This page tracks insider transactions for Sionna Therapeutics, Inc. (SION) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.