IBIO insider buying and SEC filings, explained
iBio, Inc. · CIK 1420720
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Insider activity in the last 12 months
Bought
$98K
Insiders who bought
3
Sold (not marked 10b5-1)
$0
Planned sales (10b5-1)
$0
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Mar 26, 2026 | Purchase (code P) | Marc Banjak (Chief Legal Officer) bought 13,934 shares at about $1.65 ($23K), reported as a purchase (code P). Holdings up 126% to 25,000 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 27, 2026 |
| Mar 19, 2026 | Purchase (code P) | Felipe Duran (CFO) bought 24,835 shares at about $2.02 ($50K), reported as a purchase (code P). Holdings up 223% to 35,974 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 23, 2026 |
| Mar 19, 2026 | Purchase (code P) | Martin Brenner (CEO and Director) bought 12,336 shares at $2.02 ($25K), reported as a purchase (code P). Holdings up 67% to 30,652 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 23, 2026 |
17 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
3 insiders bought in 30 days
$98K in purchases since Mar 19, 2026 · Purchases traded Mar 19, 2026 to Mar 26, 2026 · Closed
| Insider | Value | Traded | Source |
|---|---|---|---|
| Martin Brenner (CEO) | $25K | Mar 19, 2026 | SEC filing |
| Felipe Duran (CFO) | $50K | Mar 19, 2026 | SEC filing |
| Marc Banjak (Chief Legal Officer) | $23K | Mar 26, 2026 | SEC filing |
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
Follow IBIO in the Insider Ledger app
Get the appA plain-English brief of insider purchases, 8-Ks and red flags at the companies you pick. No account needed.