IBIO
insider transactionsiBio, 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).
Cluster buy signal: Multiple insiders at the same company buying around the same time — often a stronger signal than a single buy. 3 different insiders made open-market purchases in the last 365 days, totalling $98.1K.
Net shares · 365d
+51.1K
51.1K buy · 0 sell
Net value · 365d
$98.1K
$98.1K in · $0 out
Sentiment · 365d
Net buying
100% buying · 0% selling
Open-market trades · 365d
4
51.1K buy · 0 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
60.0K sh
Own New
-
Buy·P
Chief Legal Officer
$2.5K
1.4K sh · $1.76
Own +6%
-
Buy·P
Chief Legal Officer
$20.5K
12.5K sh · $1.64
Own +113%
-
Buy·P
Felipe Duran KEY
Chief Financial Officer
$50.1K
24.8K sh · $2.02
Own +223%
-
Buy·P
Martin Brenner KEY
Chief Executive Officer and C…
$24.9K
12.3K sh · $2.02
Own +67%
-
Grant·A
Felipe Duran KEY
Chief Financial Officer
$0
179.0K sh
Own New
-
Grant·A
Martin Brenner KEY
Chief Executive Officer and C…
$0
479.0K sh
Own New
-
Grant·A
Chief Legal Officer
$0
146.0K sh
Own New
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| May 18, 2026 | Elizabeth Stoner | Grant A | 60.0K | $0 |
| Mar 26, 2026 | Marc Banjak | Buy P | 1.4K | $2.5K |
| Mar 26, 2026 | Marc Banjak | Buy P | 12.5K | $20.5K |
| Mar 19, 2026 | Felipe Duran KEY | Buy P | 24.8K | $50.1K |
| Mar 19, 2026 | Martin Brenner KEY | Buy P | 12.3K | $24.9K |
| Jan 28, 2026 | Felipe Duran KEY | Grant A | 179.0K | $0 |
| Jan 28, 2026 | Martin Brenner KEY | Grant A | 479.0K | $0 |
| Jan 28, 2026 | Marc Banjak | Grant A | 146.0K | $0 |
About IBIO insider trading
This page tracks insider transactions for iBio, Inc. (IBIO) 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.