Martin Brenner

Insider Reports History

Identity Names, identifiers, and filing context for this profile. 1 identity field
Reporting-owner location
San Diego, CA
SEC source record Original filing metadata and source links for verification. 1 source field
Latest reporting-owner signature
/s/ Martin Brenner
Source evidence Original filing metadata and source links for verification. 1 source field
Transaction source note
Rows are grouped by transaction date from the original SEC filing. Open the aggregated insider activity page to review issuer-level activity across dates.

Reported holdings for Martin Brenner

Form 4 holding Chief Executive Officer and Chief Scientific Officer, Director

iBio, Inc.

Security class
Common Stock
Shares / value
30,652
Estimated value
$61,917
Report date
19 Mar 2026
Price
$2.02
Ownership
Direct
Form 4 holding Chief Executive Officer and Chief Scientific Officer, Director

iBio, Inc.

Security class
Stock Option (right to buy)
Shares / value
479,000
Estimated value
Report date
28 Jan 2026
Price
Ownership
Direct
Underlying class
Common Stock
Underlying amount

Insider Reports Filed by Martin Brenner

4 IBIO

iBio, Inc.

Report period
19 Mar 2026
Transactions
1
Transaction value
+$24,919
Accepted by SEC
23 Mar 2026, 07:30
Role
Chief Executive Officer and Chief Scientific Officer, Director
Next action
Open filing details
4 IBIO

iBio, Inc.

Report period
28 Jan 2026
Transactions
1
Transaction value
$0
Accepted by SEC
30 Jan 2026, 06:15
Role
Chief Executive Officer and Chief Scientific Officer, Director
Next action
Open filing details
4 IBIO

iBio, Inc.

Report period
20 Oct 2025
Transactions
1
Transaction value
$0
Accepted by SEC
22 Oct 2025, 18:27
Role
Chief Executive Officer and Chief Scientific Officer, Director
Next action
Open filing details
4 IBIO

iBio, Inc.

Report period
21 Feb 2025
Transactions
1
Transaction value
$0
Accepted by SEC
24 Feb 2025, 06:00
Role
Chief Executive Officer and Chief Scientific Officer, Director
Next action
Open filing details
4 IBIO

iBio, Inc.

Report period
10 Jan 2025
Transactions
1
Transaction value
+$25,000
Accepted by SEC
13 Jan 2025, 16:34
Role
Chief Executive Officer and Chief Scientific Officer, Director
Next action
Open filing details
4 IBIO

iBio, Inc.

Report period
09 May 2024
Transactions
2
Transaction value
$0
Accepted by SEC
13 May 2024, 16:32
Role
Chief Executive Officer and Chief Scientific Officer
Next action
Open filing details
4 IBIO

iBio, Inc.

Report period
01 Nov 2023
Transactions
1
Transaction value
-$1,296
Accepted by SEC
03 Nov 2023, 16:01
Role
Chief Executive Officer and Chief Scientific Officer
Next action
Open filing details
4 IBIO

iBio, Inc.

Report period
03 Oct 2023
Transactions
1
Transaction value
-$1,592
Accepted by SEC
05 Oct 2023, 16:01
Role
Chief Executive Officer and Chief Scientific Officer
Next action
Open filing details
4 IBIO

iBio, Inc.

Report period
02 Oct 2023
Transactions
1
Transaction value
-$1,311
Accepted by SEC
03 Oct 2023, 16:01
Role
Chief Executive Officer and Chief Scientific Officer
Next action
Open filing details
4 IBIO

iBio, Inc.

Report period
28 Aug 2023
Transactions
1
Transaction value
-$1,529
Accepted by SEC
30 Aug 2023, 16:22
Role
Chief Executive Officer and Chief Scientific Officer
Next action
Open filing details
4 IBIO

iBio, Inc.

Report period
23 Aug 2023
Transactions
1
Transaction value
$0
Accepted by SEC
24 Aug 2023, 16:02
Role
Chief Executive Officer and Chief Scientific Officer
Next action
Open filing details
4 IBIO

iBio, Inc.

Report period
27 Jul 2023
Transactions
2
Transaction value
-$2,308
Accepted by SEC
28 Jul 2023, 16:01
Role
Chief Executive Officer and Chief Scientific Officer
Next action
Open filing details
4 IBIO

iBio, Inc.

Report period
12 Jul 2023
Transactions
1
Transaction value
-$27,521
Accepted by SEC
13 Jul 2023, 16:02
Role
Chief Executive Officer and Chief Scientific Officer
Next action
Open filing details
4 IBIO

iBio, Inc.

Report period
22 Jun 2023
Transactions
2
Transaction value
$0
Accepted by SEC
27 Jun 2023, 08:12
Role
Chief Executive Officer and Chief Scientific Officer
Next action
Open filing details
4 IBIO

iBio, Inc.

Report period
21 Jun 2023
Transactions
3
Transaction value
-$2,849
Accepted by SEC
22 Jun 2023, 09:28
Role
Interim Chief Executive Officer and Chief Scientific Officer
Next action
Open filing details
4 IBIO

iBio, Inc.

Report period
22 May 2023
Transactions
2
Transaction value
-$3,910
Accepted by SEC
24 May 2023, 06:03
Role
Interim Chief Executive Officer and Chief Scientific Officer
Next action
Open filing details
4 IBIO

iBio, Inc.

Report period
24 Apr 2023
Transactions
1
Transaction value
-$5,258
Accepted by SEC
24 Apr 2023, 16:01
Role
Interim Chief Executive Officer and Chief Scientific Officer
Next action
Open filing details
4 IBIO

iBio, Inc.

Report period
31 Mar 2023
Transactions
1
Transaction value
$0
Accepted by SEC
03 Apr 2023, 16:02
Role
Interim Chief Executive Officer and Chief Scientific Officer
Next action
Open filing details
4 IBIO

iBio, Inc.

Report period
23 Mar 2023
Transactions
1
Transaction value
-$11,112
Accepted by SEC
28 Mar 2023, 08:32
Role
Interim Chief Executive Officer and Chief Scientific Officer
Next action
Open filing details
4 IBIO

iBio, Inc.

Report period
21 Feb 2023
Transactions
1
Transaction value
-$7,038
Accepted by SEC
23 Feb 2023, 15:31
Role
Interim Chief Executive Officer and Chief Scientific Officer
Next action
Open filing details
We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. Manage preferences to update or revoke optional consent for future visits. For more information, see our Privacy Policy .