As of September 09, 2026, KORU Medical Systems's top three insider holders are Kathy Frommer (Director, 727.14K shares), Linda M Tharby (Chief Executive Officer, 620.62K shares), Manuel A Marques (Chief Operating Officer, 443.08K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Kathy Frommer | Director | 727,139 | 0 | 727,139 | 21.7% | 04 Apr, 2022 |
| 2 | Linda M Tharby | Chief Executive Officer | 620,622 | 0 | 620,622 | 18.5% | 20 May, 2026 |
| 3 | Manuel A Marques | Chief Operating Officer | 443,080 | 0 | 443,080 | 13.2% | 16 Dec, 2021 |
| 4 | Adam R Kalbermatten | Chief Commercial Officer | 362,017 | 0 | 362,017 | 10.8% | 06 Aug, 2026 |
| 5 | Christopher Pazdan | Chief Operating Officer | 308,988 | 0 | 308,988 | 9.2% | 18 May, 2026 |
| 6 | R John Fletcher | Director, Other | 226,800 | 0 | 226,800 | 6.8% | 01 Apr, 2026 |
| 7 | Daniel S Goldberger | Chairman And Interim Ceo | 120,334 | 0 | 120,334 | 3.6% | 04 Apr, 2022 |
| 8 | Shahriar Matin | Director | 101,144 | 0 | 101,144 | 3.0% | 01 Jul, 2026 |
| 9 | Donna French | Director | 98,514 | 0 | 98,514 | 2.9% | 01 Jul, 2026 |
| 10 | Robert Cascella | Director | 98,155 | 0 | 98,155 | 2.9% | 01 Jul, 2026 |
| 11 | James M Beck | Director | 90,283 | 0 | 90,283 | 2.7% | 05 Jul, 2023 |
| 12 | David W Anderson | Director | 58,746 | 0 | 58,746 | 1.8% | 04 Apr, 2022 |
| 13 | Edward Wholihan | Director | 51,312 | 0 | 51,312 | 1.5% | 01 Jul, 2026 |
| 14 | Robert T Allen | Director | 32,126 | 0 | 32,126 | 1.0% | 04 Apr, 2022 |
| 15 | Eric Schiller | Chief Technology Officer | 5,000 | 0 | 5,000 | 0.1% | 20 May, 2026 |
| 16 | Kenneth E Miller | Chief Commercial Officer | 3,725 | 0 | 3,725 | 0.1% | 21 Mar, 2025 |
| 17 | Thomas Edward Adams | Chief Financial Officer | 3,281 | 0 | 3,281 | 0.1% | 18 Mar, 2026 |
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.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 28 Jul, 2026 | Adam R Kalbermatten | Chief Commercial Officer | Acquired M | 75,000 | $0.00 | $0 | 387,500 | Direct |
| 28 Jul, 2026 | Adam R Kalbermatten | Chief Commercial Officer | Disposed F | 25,483 | $4.26 | $108.56K | 362,017 | Direct |
| 01 Jul, 2026 | Adam R Kalbermatten | President And Ceo | Acquired A | 286,697 | $0.00 | $0 | 286,697 | Direct |
| 01 Jul, 2026 | Edward Wholihan | Director | Acquired A | 3,571 | $4.20 | $15.00K | 51,312 | Direct |
| 30 Jun, 2026 | Joseph M. Jr. Manko | Director, TenPercentOwner | Acquired A | 3,571 | $0.00 | $0 | 5,069,541 | Indirect |
| 01 Jul, 2026 | Donna French | Director | Acquired A | 3,571 | $4.20 | $15.00K | 98,514 | Direct |
| 01 Jul, 2026 | R John Fletcher | Director, Other | Acquired A | 5,357 | $4.20 | $22.50K | 232,157 | Direct |
| 01 Jul, 2026 | Shahriar Matin | Director | Acquired A | 3,571 | $4.20 | $15.00K | 101,144 | Direct |
| 01 Jul, 2026 | Robert Cascella | Director | Acquired A | 3,571 | $4.20 | $15.00K | 98,155 | Direct |
| 15 May, 2026 | Linda M Tharby | Chief Executive Officer | Acquired P | 1,191 | $1,191.00 | $1.42Mn | 620,622 | Direct |
| 18 May, 2026 | Eric Schiller | Chief Technology Officer | Acquired P | 5,000 | $3.91 | $19.56K | 5,000 | Direct |
| 15 May, 2026 | Linda M Tharby | Chief Executive Officer | Acquired P | 1,191 | $3.92 | $4.67K | 620,622 | Direct |
| 14 May, 2026 | Linda M Tharby | Chief Executive Officer | Acquired M | 13,977 | $0.00 | $0 | 626,757 | Direct |
| 14 May, 2026 | Linda M Tharby | Chief Executive Officer | Disposed F | 7,326 | $3.94 | $28.86K | 619,431 | Direct |
| 14 May, 2026 | Christopher Pazdan | Chief Operating Officer | Acquired P | 5,000 | $3.88 | $19.40K | 305,131 | Direct |
| 14 May, 2026 | Christopher Pazdan | Chief Operating Officer | Acquired M | 5,327 | $0.00 | $0 | 310,458 | Direct |
| 14 May, 2026 | Christopher Pazdan | Chief Operating Officer | Disposed F | 1,470 | $3.94 | $5.79K | 308,988 | Direct |
| 31 Mar, 2026 | Joseph M. Jr. Manko | Director, TenPercentOwner | Acquired A | 3,472 | $0.00 | $0 | 5,065,970 | Indirect |
| 01 Apr, 2026 | Edward Wholihan | Director | Acquired A | 3,472 | $4.32 | $15.00K | 47,741 | Direct |
| 31 Mar, 2026 | Joseph M. Jr. Manko | Director, TenPercentOwner | Acquired A | 3,472 | $0.00 | $0 | 5,065,970 | Indirect |