Impact Biomedical IBO Insider Ownership

NYSE IBO
$3.80 -0.22 (-5.47%)
As of: Oct 22, 2026 · 3:58 PM EDT

Insider Holdings by Owner

1.83Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026
Insider Ownership
1.06%
▲+0.547% pp QoQ
Shares Held by Insiders
1.15Mn
filed for Sep 2026
▲+106.08% QoQ
Shares Outstanding
107.82Mn
107,821,231 shares
Direct Holdings
1.09Mn
Indirect: 53.10K
Net Shares Traded (QoQ)
+589.52K
net buying in Sep 2026
Insiders Holding Shares
5
with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding
Latest —
Average ownership —
Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold
Latest quarter —
Net over range —
Buying quarters —

Insider Ownership Summary

Over the past year, IBO insiders sold $59,522 of stock (95.91K shares) on the open market and bought none.

Form 4 Holdings

Insiders Holding IBO

Insiders 5
Shares held 1.83Mn
Of outstanding 1.69%
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Heng Fai Ambrose Chan Director, TenPercentOwner 0 734,058 734,058 40.2% 02 Apr, 2025
2 Inc. Dss, TenPercentOwner 589,518 0 589,518 32.3% 24 Sep, 2026
3 Jason Grady Director 250,182 0 250,182 13.7% 25 Mar, 2026
4 Todd D Macko Chief Financial Officer 155,122 0 155,122 8.5% 30 Mar, 2026
5 Frank D Heuszel Chief Executive Officer 97,344 0 97,344 5.3% 09 Dec, 2024

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

37 Insider Transactions

Source SEC Form 4
Latest quarter Sep 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
22 Sep, 2026 Inc. Dss, TenPercentOwner Disposed S 723 $0.55 $398 589,701 Direct
23 Sep, 2026 Inc. Dss, TenPercentOwner Disposed S 27 $6.95 $188 589,674 Direct
24 Sep, 2026 Inc. Dss, TenPercentOwner Disposed S 156 $7.06 $1.10K 589,518 Direct
25 Mar, 2026 Todd D Macko Chief Financial Officer Disposed S 1,600 $0.60 $961 198,122 Direct
27 Mar, 2026 Todd D Macko Chief Financial Officer Disposed S 43,400 $0.56 $24.37K 155,122 Direct
23 Mar, 2026 Jason Grady Director Disposed S 50,000 $0.65 $32.51K 250,182 Direct
22 May, 2025 Inc. Dss, TenPercentOwner Disposed S 115,600 $0.55 $63.48K 45,400 Direct
27 May, 2025 Inc. Dss, TenPercentOwner Disposed S 45,400 $0.54 $24.53K 0 Direct
04 Apr, 2025 Inc. Dss, TenPercentOwner Disposed S 890,800 $0.95 $845.01K 161,100 Direct
03 Apr, 2025 Heng Fai Ambrose Chan Director Disposed S 351,555 $0.50 $174.02K 0 Indirect
02 Apr, 2025 Heng Fai Ambrose Chan Director, TenPercentOwner Disposed S 300,000 $0.58 $174.30K 553,904 Indirect
02 Apr, 2025 Heng Fai Ambrose Chan Director, TenPercentOwner Disposed S 200,000 $0.67 $134.80K 353,904 Indirect
02 Apr, 2025 Heng Fai Ambrose Chan Director, TenPercentOwner Disposed S 2,349 $0.67 $1.58K 351,555 Indirect
02 Apr, 2025 Heng Fai Ambrose Chan Director, TenPercentOwner Disposed S 382,427 $0.58 $222.95K 351,631 Indirect
03 Apr, 2025 Heng Fai Ambrose Chan Director, TenPercentOwner Disposed S 351,631 $0.58 $203.59K 0 Indirect
03 Apr, 2025 Heng Fai Ambrose Chan Director, TenPercentOwner Disposed S 273,286 $0.78 $212.89K 180,000 Indirect
04 Apr, 2025 Heng Fai Ambrose Chan Director, TenPercentOwner Disposed S 180,000 $0.96 $172.80K 0 Indirect
31 Mar, 2025 Heng Fai Ambrose Chan Director, TenPercentOwner Disposed S 300,000 $1.03 $308.40K 1,253,904 Indirect
01 Apr, 2025 Heng Fai Ambrose Chan Director, TenPercentOwner Disposed S 400,000 $0.98 $392.80K 853,904 Indirect
01 Apr, 2025 Heng Fai Ambrose Chan Director, TenPercentOwner Disposed S 650,000 $1.45 $940.55K 1,910,976 Indirect