Impact Biomedical Inc. (IBO) Insider Ownership

Historic Insider Ownership Trends

Impact Biomedical's three largest insider shareholders as of July 24, 2026 are Inc. Dss, (TenPercentOwner, 1.18Mn shares), Jason Grady (Director, 250.18K shares), Todd D Macko (Chief Financial Officer, 155.12K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Inc. Dss, - 0 1,178,882 28 Mar, 2025
Frank D Heuszel Chief Executive Officer 97,344 0 09 Dec, 2024
Jason Grady - 250,182 0 25 Mar, 2026
Todd D Macko Chief Financial Officer 155,122 0 30 Mar, 2026

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
25 Mar, 2026 Todd D Macko Common Stock D 1,600 $0.60 198,122 D S
25 Mar, 2026 Todd D Macko Common Stock D 1,600 $0.60 198,122 D S
25 Mar, 2026 Todd D Macko Common Stock D 1,600 $0.60 198,122 D S
27 Mar, 2026 Todd D Macko Common Stock D 43,400 $0.56 155,122 D S
27 Mar, 2026 Todd D Macko Common Stock D 43,400 $0.56 155,122 D S
27 Mar, 2026 Todd D Macko Common Stock D 43,400 $0.56 155,122 D S
23 Mar, 2026 Jason Grady Common Stock D 50,000 $0.65 250,182 D S
22 May, 2025 Inc. Dss, Common Stock D 115,600 $0.55 45,400 D S
27 May, 2025 Inc. Dss, Common Stock D 45,400 $0.54 0 D S
03 Apr, 2025 Heng Fai Ambrose Chan Common stock D 351,555 $0.50 0 I S
04 Apr, 2025 Inc. Dss, Common Stock D 890,800 $0.95 161,100 D S
21 Mar, 2025 Inc. Dss, Common Stock D 166,600 $3.30 0 I S
21 Mar, 2025 Inc. Dss, Common Stock D 166,600 $3.30 0 I S
21 Mar, 2025 Inc. Dss, Common Stock D 166,600 $3.30 1,178,882 I S
26 Mar, 2025 Inc. Dss, Common Stock D 48,281 $3.13 1,109,339 D S
26 Mar, 2025 Inc. Dss, Common Stock D 9,858 $3.15 1,099,481 D S
27 Mar, 2025 Inc. Dss, Common Stock D 47,681 $2.50 1,051,800 D S
05 Dec, 2024 Frank D Heuszel Common Stock A 500 $2.26 97,344 D P
27 Nov, 2024 Frank D Heuszel Common Stock A 500 $2.61 96,844 D P
26 Nov, 2024 Frank D Heuszel Common Stock A 550 $2.63 95,844 D P