United States Biotechnology & Medical Research

Impact Biomedical Inc (IBO)

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Impact Biomedical Inc. recorded its most recent insider trading activity on April 22, 2026, involving a proposed sale by a major stockholder. Prior to this, executives executed multiple sell orders throughout March 2026. These transactions represent the latest documented movements by company insiders, occurring well beyond the standard three-month window for current market analysis.
Ticker: IBO Exchange: ASE
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
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Insider trades have triggered activity signals for Impact Biomedical Inc. Upgrade to see score, net flow, insiders and the full signal context.

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Top insiders
Trades
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
3.8
DSS INC. Stockholder Large shareholder
Transaction date
Proposed sale
Price
290.77
Quantity 80,357
Value US$432,242
2.6
Macko Todd D Chief Financial Officer Officer
Transaction date
Sale
Price
263.48
Quantity 27,965 -34.5%
Value US$1,892,718
2.6
Macko Todd D Chief Financial Officer Officer
Transaction date
Sale
Price
206.34
Quantity 7,480 -11.2%
Value US$4,428,620
2.5
Grady Jason Non-Executive Director
Transaction date
Sale
Price
0.65
Quantity 50,000 -16.7%
Value US$32,505
3.8
DSS, INC. Large shareholder
Transaction date
Sale
Price
0.54
Quantity 45,400 -7.7%
Value US$24,530
3.8
DSS, INC. Large shareholder
Transaction date
Sale
Price
0.54
Quantity 45,400 -100.0%
Value US$24,530
3.8
DSS, INC. Large shareholder
Transaction date
Sale
Price
0.55
Quantity 115,600 -16.4%
Value US$63,476
3.8
DSS, INC. Large shareholder
Transaction date
Sale
Price
0.55
Quantity 115,600 -71.8%
Value US$63,476
3.8
DSS, INC. Large shareholder
Transaction date
Sale
Price
0.95
Quantity 890,800 -84.7%
Value US$845,013
2.1
Chan Heng Fai Ambrose Non-Executive Director Large shareholder
Transaction date
Sale
Price
0.96
Quantity 180,000 -100.0%
Value US$172,800
2.1
Chan Heng Fai Ambrose Non-Executive Director
Transaction date
Sale
Price
0.50
Quantity 351,555 -100.0%
Value US$174,020
2.1
Chan Heng Fai Ambrose Non-Executive Director Large shareholder
Transaction date
Sale
Price
0.78
Quantity 273,286 -60.3%
Value US$212,890
2.1
Chan Heng Fai Ambrose Non-Executive Director Large shareholder
Transaction date
Sale
Price
0.58
Quantity 351,631 -100.0%
Value US$203,594
2.1
Chan Heng Fai Ambrose Non-Executive Director Large shareholder
Transaction date
Sale
Price
0.58
Quantity 382,427 -52.1%
Value US$222,955
2.1
Chan Heng Fai Ambrose Non-Executive Director Large shareholder
Transaction date
Sale
Price
0.67
Quantity 2,349 -0.7%
Value US$1,581
2.1
Chan Heng Fai Ambrose Non-Executive Director Large shareholder
Transaction date
Sale
Price
0.67
Quantity 200,000 -36.1%
Value US$134,800
2.1
Chan Heng Fai Ambrose Non-Executive Director Large shareholder
Transaction date
Sale
Price
0.58
Quantity 300,000 -35.1%
Value US$174,300
2.1
Chan Heng Fai Ambrose Non-Executive Director Large shareholder
Transaction date
Sale
Price
1.08
Quantity 1,176,918 -61.6%
Value US$1,271,071
2.1
Chan Heng Fai Ambrose Non-Executive Director Large shareholder
Transaction date
Sale
Price
1.45
Quantity 650,000 -25.4%
Value US$940,550
2.1
Chan Heng Fai Ambrose Non-Executive Director Large shareholder
Transaction date
Sale
Price
0.98
Quantity 400,000 -31.9%
Value US$392,800
2.1
Chan Heng Fai Ambrose Non-Executive Director Large shareholder
Transaction date
Sale
Price
1.03
Quantity 300,000 -19.3%
Value US$308,400
3.8
DSS, INC. Large shareholder
Transaction date
Sale
Price
2.50
Quantity 47,681 -4.3%
Value US$119,255
3.8
DSS, INC. Large shareholder
Transaction date
Sale
Price
3.15
Quantity 9,858 -0.9%
Value US$31,053
3.8
DSS, INC. Large shareholder
Transaction date
Sale
Price
3.13
Quantity 48,281 -4.2%
Value US$151,081
3.8
DSS, INC. Large shareholder
Transaction date
Sale
Price
3.30
Quantity 166,600 -12.4%
Value US$549,847
3.8
DSS, INC. Large shareholder
Transaction date
Sale
Price
3.30
Quantity 166,600 -100.0%
Value US$549,847
3.8
DSS, INC. Large shareholder
Transaction date
Sale
Price
3.30
Quantity 166,600 -100.0%
Value US$549,847
3.8
DSS, INC. Large shareholder
Transaction date
Sale
Price
4.68
Quantity 53,280 -100.0%
Value US$249,350
3.8
DSS, INC. Large shareholder
Transaction date
Purchase
Price
1.55
Quantity 200 +0.4%
Value US$310
0.9
Heuszel Frank D Chief Executive Officer Executive Director
Transaction date
Purchase
Price
2.26
Quantity 500 +0.5%
Value US$1,129
3.8
DSS, INC. Large shareholder
Transaction date
Sale
Price
2.90
Quantity 20 -0.0%
Value US$58
0.9
Heuszel Frank D Chief Executive Officer Executive Director
Transaction date
Purchase
Price
2.61
Quantity 500 +0.5%
Value US$1,305
0.9
Heuszel Frank D Chief Executive Officer Executive Director
Transaction date
Purchase
Price
2.59
Quantity 500 +0.5%
Value US$1,295
0.9
Heuszel Frank D Chief Executive Officer Executive Director
Transaction date
Purchase
Price
2.63
Quantity 550 +0.6%
Value US$1,444
3.8
DSS, INC. Large shareholder
Transaction date
Sale
Price
3.02
Quantity 5,000 -8.6%
Value US$15,085
3.8
DSS, INC. Large shareholder
Transaction date
Sale
Price
2.80
Quantity 200 -0.3%
Value US$560
3.8
DSS, INC. Large shareholder
Transaction date
Sale
Price
2.76
Quantity 500 -0.9%
Value US$1,378
3.8
DSS, INC. Large shareholder
Transaction date
Purchase
Price
2.33
Quantity 1,000 +1.7%
Value US$2,330
3.8
DSS, INC. Large shareholder
Transaction date
Purchase
Price
2.40
Quantity 7,800 +15.6%
Value US$18,720
3.8
DSS, INC. Large shareholder
Transaction date
Purchase
Price
2.69
Quantity 50,000 +inf%
Value US$134,500
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-04-29 2026-04-22 PrS Proposed sale
3.8
DSS INC.

Stockholder

Large shareholder
80,357
290.77
US$432,242 		80,357 290.77 US$432,242
2026-03-30 2026-03-27 S Sale
2.6
Macko Todd D

Chief Financial Officer

Officer
27,965 -34.5%
263.48
US$1,892,718 		27,965 -34.5% 263.48 US$1,892,718
2026-03-30 2026-03-25 S Sale
2.6
Macko Todd D

Chief Financial Officer

Officer
7,480 -11.2%
206.34
US$4,428,620 		7,480 -11.2% 206.34 US$4,428,620
2026-03-25 2026-03-23 S Sale
2.5
Grady Jason
Non-Executive Director
50,000 -16.7%
0.65
US$32,505 		50,000 -16.7% 0.65 US$32,505
2026-01-06 2025-05-27 S Sale
3.8
DSS, INC.
Large shareholder
45,400 -7.7%
0.54
US$24,530 		45,400 -7.7% 0.54 US$24,530
2025-05-27 2025-05-27 S Sale
3.8
DSS, INC.
Large shareholder
45,400 -100.0%
0.54
US$24,530 		45,400 -100.0% 0.54 US$24,530
2026-01-06 2025-05-22 S Sale
3.8
DSS, INC.
Large shareholder
115,600 -16.4%
0.55
US$63,476 		115,600 -16.4% 0.55 US$63,476
2025-05-27 2025-05-22 S Sale
3.8
DSS, INC.
Large shareholder
115,600 -71.8%
0.55
US$63,476 		115,600 -71.8% 0.55 US$63,476
2025-04-07 2025-04-04 S Sale
3.8
DSS, INC.
Large shareholder
890,800 -84.7%
0.95
US$845,013 		890,800 -84.7% 0.95 US$845,013
2025-04-04 2025-04-04 S Sale
2.1
Chan Heng Fai Ambrose
Non-Executive Director Large shareholder
180,000 -100.0%
0.96
US$172,800 		180,000 -100.0% 0.96 US$172,800
2025-04-07 2025-04-03 S Sale
2.1
Chan Heng Fai Ambrose
Non-Executive Director
351,555 -100.0%
0.50
US$174,020 		351,555 -100.0% 0.50 US$174,020
2025-04-04 2025-04-03 S Sale
2.1
Chan Heng Fai Ambrose
Non-Executive Director Large shareholder
273,286 -60.3%
0.78
US$212,890 		273,286 -60.3% 0.78 US$212,890
2025-04-04 2025-04-03 S Sale
2.1
Chan Heng Fai Ambrose
Non-Executive Director Large shareholder
351,631 -100.0%
0.58
US$203,594 		351,631 -100.0% 0.58 US$203,594
2025-04-04 2025-04-02 S Sale
2.1
Chan Heng Fai Ambrose
Non-Executive Director Large shareholder
382,427 -52.1%
0.58
US$222,955 		382,427 -52.1% 0.58 US$222,955
2025-04-04 2025-04-02 S Sale
2.1
Chan Heng Fai Ambrose
Non-Executive Director Large shareholder
2,349 -0.7%
0.67
US$1,581 		2,349 -0.7% 0.67 US$1,581
2025-04-04 2025-04-02 S Sale
2.1
Chan Heng Fai Ambrose
Non-Executive Director Large shareholder
200,000 -36.1%
0.67
US$134,800 		200,000 -36.1% 0.67 US$134,800
2025-04-04 2025-04-02 S Sale
2.1
Chan Heng Fai Ambrose
Non-Executive Director Large shareholder
300,000 -35.1%
0.58
US$174,300 		300,000 -35.1% 0.58 US$174,300
2025-04-02 2025-04-01 S Sale
2.1
Chan Heng Fai Ambrose
Non-Executive Director Large shareholder
1,176,918 -61.6%
1.08
US$1,271,071 		1,176,918 -61.6% 1.08 US$1,271,071
2025-04-02 2025-04-01 S Sale
2.1
Chan Heng Fai Ambrose
Non-Executive Director Large shareholder
650,000 -25.4%
1.45
US$940,550 		650,000 -25.4% 1.45 US$940,550
2025-04-02 2025-04-01 S Sale
2.1
Chan Heng Fai Ambrose
Non-Executive Director Large shareholder
400,000 -31.9%
0.98
US$392,800 		400,000 -31.9% 0.98 US$392,800
2025-04-02 2025-03-31 S Sale
2.1
Chan Heng Fai Ambrose
Non-Executive Director Large shareholder
300,000 -19.3%
1.03
US$308,400 		300,000 -19.3% 1.03 US$308,400
2025-03-28 2025-03-27 S Sale
3.8
DSS, INC.
Large shareholder
47,681 -4.3%
2.50
US$119,255 		47,681 -4.3% 2.50 US$119,255
2025-03-28 2025-03-26 S Sale
3.8
DSS, INC.
Large shareholder
9,858 -0.9%
3.15
US$31,053 		9,858 -0.9% 3.15 US$31,053
2025-03-28 2025-03-26 S Sale
3.8
DSS, INC.
Large shareholder
48,281 -4.2%
3.13
US$151,081 		48,281 -4.2% 3.13 US$151,081
2025-03-28 2025-03-21 S Sale
3.8
DSS, INC.
Large shareholder
166,600 -12.4%
3.30
US$549,847 		166,600 -12.4% 3.30 US$549,847
2025-03-28 2025-03-21 S Sale
3.8
DSS, INC.
Large shareholder
166,600 -100.0%
3.30
US$549,847 		166,600 -100.0% 3.30 US$549,847
2025-03-28 2025-03-21 S Sale
3.8
DSS, INC.
Large shareholder
166,600 -100.0%
3.30
US$549,847 		166,600 -100.0% 3.30 US$549,847
2025-03-24 2025-03-20 S Sale
3.8
DSS, INC.
Large shareholder
53,280 -100.0%
4.68
US$249,350 		53,280 -100.0% 4.68 US$249,350
2025-03-24 2025-03-20 B Purchase
3.8
DSS, INC.
Large shareholder
200 +0.4%
1.55
US$310 		200 +0.4% 1.55 US$310
2024-12-09 2024-12-05 B Purchase
0.9
Heuszel Frank D

Chief Executive Officer

Executive Director
500 +0.5%
2.26
US$1,129 		500 +0.5% 2.26 US$1,129
2025-03-24 2024-12-02 S Sale
3.8
DSS, INC.
Large shareholder
20 -0.0%
2.90
US$58 		20 -0.0% 2.90 US$58
2024-12-03 2024-11-27 B Purchase
0.9
Heuszel Frank D

Chief Executive Officer

Executive Director
500 +0.5%
2.61
US$1,305 		500 +0.5% 2.61 US$1,305
2024-12-03 2024-11-26 B Purchase
0.9
Heuszel Frank D

Chief Executive Officer

Executive Director
500 +0.5%
2.59
US$1,295 		500 +0.5% 2.59 US$1,295
2024-12-03 2024-11-26 B Purchase
0.9
Heuszel Frank D

Chief Executive Officer

Executive Director
550 +0.6%
2.63
US$1,444 		550 +0.6% 2.63 US$1,444
2024-11-22 2024-11-18 S Sale
3.8
DSS, INC.
Large shareholder
5,000 -8.6%
3.02
US$15,085 		5,000 -8.6% 3.02 US$15,085
2024-11-22 2024-11-13 S Sale
3.8
DSS, INC.
Large shareholder
200 -0.3%
2.80
US$560 		200 -0.3% 2.80 US$560
2024-11-22 2024-11-12 S Sale
3.8
DSS, INC.
Large shareholder
500 -0.9%
2.76
US$1,378 		500 -0.9% 2.76 US$1,378
2024-09-19 2024-09-18 B Purchase
3.8
DSS, INC.
Large shareholder
1,000 +1.7%
2.33
US$2,330 		1,000 +1.7% 2.33 US$2,330
2024-09-18 2024-09-17 B Purchase
3.8
DSS, INC.
Large shareholder
7,800 +15.6%
2.40
US$18,720 		7,800 +15.6% 2.40 US$18,720
2024-09-18 2024-09-16 B Purchase
3.8
DSS, INC.
Large shareholder
50,000 +inf%
2.69
US$134,500 		50,000 +inf% 2.69 US$134,500
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