IMPACT BIOMEDICAL INC. - COMMON STOCK (IBO)

CUSIP: 45259L205

Q1 2026 13F Holders as of 31 Mar 2026

Share change
+1,771,392
SEC-reported price per share
$0.60
Number of holders
19
Value change
+$1,083,795
Number of buys
9
Number of sells
9

Security key

45259L205

Report period

Q1 2026

Institutions

19

Top holders

10

Ownership snapshot

Top reported holders of IBO - IMPACT BIOMEDICAL INC. - COMMON STOCK (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
Chan Heng Fai Ambrose
Disclosed value leader
VANGUARD GROUP INC
Comparable rows
1/15
Latest evidence
25 Mar 2026
13D/G 3/4/5 13F Lead comparable stake: 2.9% 14 rows are not safely comparable across share classes. 13D/G row: Chan Heng Fai Ambrose Showing 1-6 of 15 holder rows.

Quick read

Chan Heng Fai Ambrose leads the comparable SEC ownership view at 2.9%.

1 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Chan Heng Fai Ambrose's linked filing trail.
Comparable ownership Top 1
Chan Heng Fai Ambrose 2.9%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
Chan Heng Fai Ambrose
13D/G
Heng Fai Ambrose Chan
2.9%
351,555 shares
$0 02 Apr 2025
DSS, INC.
3/4/5
10%+ Owner
class O/S missing
$294,476
545,024 shares
22 May 2025
VANGUARD GROUP INC
13F
Company
13F
class O/S missing
$411,517
814,885 shares
31 Dec 2025
Frank D. Heuszel
3/4/5
Chief Executive Officer, Director
class O/S missing
$219,783
97,344 shares
05 Dec 2024
Jason Grady
3/4/5
Director
class O/S missing
$162,643
250,182 shares
-$32,505 23 Mar 2026
BlackRock, Inc.
13F
Company
13F
class O/S missing
$131,273
259,946 shares
31 Dec 2025
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q1 2026

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions
19
Shares
3,722,225
Rows available
19
Investor Option Weight % Change % SEC-reported value * Price Shares Share Change Activity Report Period

* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q1 2026 vs Q4 2025 Across Filers

Q4 2025 holders
20
Q1 2026 holders
19
Holder diff
-1
Investor Q4 2025 Shares Q1 2026 Shares Share Diff Share Chg % Q4 2025 value Q1 2026 value Value change Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
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