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iBio, Inc.

IBIO Net selling
CIK 0001420720 #4524 in the set updated 20 Sep 2026
Bought (120 mo)
$6.65M
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$98.49M
$0.00 on a plan · $5.41M straight out of an exercise
Sold at will
$93.08M
22 of 26 sales
Net
−$91.84M
−$86.43M against sales at will

By person

14 insiders · 43 transactions
0.0×

Dr. Martin B. Brenner holds only 0.0 times base salary in stock. $53.95K of shares against $580.00K in salary for 2026.

Salary from the company's own proxy. The shares are what Dr. Martin B. Brenner last reported holding, valued at $1.76, the price Common Stock was last bought or sold at on the open market here, on 26 Mar 2026.

Insider
Role
Bought
Sold
Net
Holding
Worth
Change
Eastern Capital LTD entity
10% owner
$5.90M (3)
$98.17M (6)
−$92.27M
8,629,693
$15.19M
Parada Antonio Bernardino Guimaraes
Director
$500.00K (1)
+$500.00K
183,823
$323.53K
ERWIN ROBERT L
President
$204.06K (2) scheduled
−$204.06K
108,108
$190.27K
0.0%
Duran Felipe
Chief Financial Officer
$75.13K (2)
+$75.13K
35,974
$63.31K
Arkowitz David
Director
$50.00K (1)
+$50.00K
18,382
$32.35K
Banjak Marc
Chief Legal Officer
$48.05K (3)
+$48.05K
25,000
$44.00K
+1,233%
Maddux Randy Joe
Chief Operating Officer
$25.44K (1)
−$25.44K
271,757
$478.29K
Sender Gary
Director
$25.00K (1)
+$25.00K
9,191
$16.18K
Mullaney James P.
Chief Financial Officer
$18.11K (1) scheduled
−$18.11K
0
$0.00
Brenner Martin
See Remarks
$49.92K (2)
$65.72K (15)
−$15.80K
30,652
$53.95K
Lutz Robert Matthew
See Remarks
$8.51K (1)
−$8.51K
102,165
$179.81K
Clark William D
Director
$5.00K (1)
+$5.00K
1,838
$3.23K
DART KENNETH BRYAN
10% owner
(1)
$0.00
Isett Thomas Francis 3rd
CEO and Executive Chairman
1,275,000
$2.24M
+30.8%

No percentages here. This company's share count has moved by a factor of 5.8 over the window, from 8,637,895 to 49,678,561 shares. A split, a merger or a large issue changes what the company is, and a holding measured at one point in that run is not a fraction of it at another.

Insider
Date
Role
Action
Shares
Price
Amount
Eastern Capital LTD
7 Aug 2020
10% owner
Sold after exercise
1,355,604
$3.83
$5.19M
ERWIN ROBERT L
4 Jun 2020
President
Sold after exercise
28,268
$1.71
$48.34K
ERWIN ROBERT L
2 Jun 2020
President
Sold after exercise
96,124
$1.62
$155.72K
Mullaney James P.
27 May 2020
Chief Financial Officer
Sold after exercise
11,250
$1.61
$18.11K

What was left out

Form 4 filings counted 133
Amendments (4/A) skipped 5
Filings about a different issuer 0
Unreadable filings 0
Joint filings 5
Sales on a Rule 10b5-1 plan 0
Sales straight out of an exercise 4
Sales at will 22
Transactions with no price 1
Shares from compensation/vesting 30,466,215
Sales filed before the plan box existed 8
History held since 27 Feb 2017