Pharma-Bio Serv's top three insider shareholders as of September 29, 2026 are Pedro J Lasanta (Chief Financial Officer, 119.19K shares), Irving L Wiesen (Director, 54.25K shares), Dov Perlysky (Director, 54.20K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Pedro J Lasanta | Chief Financial Officer | 119,188 | 0 | 119,188 | 42.2% | 08 Mar, 2023 |
| 2 | Irving L Wiesen | Director | 54,250 | 0 | 54,250 | 19.2% | 28 Mar, 2023 |
| 3 | Dov Perlysky | Director | 54,203 | 0 | 54,203 | 19.2% | 28 Mar, 2023 |
| 4 | Kirk Wheeler Michel | Chairman | 43,602 | 0 | 43,602 | 15.4% | 09 Jan, 2024 |
| 5 | Altura Victor Sanchez | President And Ceo | 11,382 | 0 | 11,382 | 4.0% | 08 Mar, 2023 |
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 |
|---|---|---|---|---|---|---|---|---|
| 09 Jun, 2026 | Howard Spindel | Director | Disposed J | 42,504 | $0.00 | $0 | 0 | Indirect |
| 10 Jan, 2026 | Howard Spindel | Director | Acquired A | 20,000 | $0.00 | $0 | 20,000 | Direct |
| 10 Jan, 2026 | Dov Perlysky | Director | Acquired A | 20,000 | $0.00 | $0 | 20,000 | Direct |
| 10 Jan, 2026 | Irving L Wiesen | Director | Acquired A | 20,000 | $0.00 | $0 | 20,000 | Direct |
| 10 Jan, 2026 | Kirk Wheeler Michel | Chairman | Acquired A | 20,000 | $0.00 | $0 | 20,000 | Direct |
| 10 Jan, 2025 | Howard Spindel | Director | Acquired A | 20,000 | $0.00 | $0 | 20,000 | Direct |
| 10 Jan, 2025 | Irving L Wiesen | Director | Acquired A | 20,000 | $0.00 | $0 | 20,000 | Direct |
| 10 Jan, 2025 | Dov Perlysky | Director | Acquired A | 20,000 | $0.00 | $0 | 20,000 | Direct |
| 10 Jan, 2025 | Kirk Wheeler Michel | Chairman | Acquired A | 20,000 | $0.00 | $0 | 20,000 | Direct |
| 10 Jan, 2024 | Dov Perlysky | Director | Acquired A | 20,000 | $0.00 | $0 | 20,000 | Direct |
| 10 Jan, 2024 | Kirk Wheeler Michel | Chairman | Acquired A | 20,000 | $0.00 | $0 | 20,000 | Direct |
| 10 Jan, 2024 | Howard Spindel | Director | Acquired A | 20,000 | $0.00 | $0 | 20,000 | Direct |
| 10 Jan, 2024 | Irving L Wiesen | Director | Acquired A | 20,000 | $0.00 | $0 | 20,000 | Direct |
| 05 Jan, 2024 | Howard Spindel | Director | Acquired M | 20,000 | $1.00 | $20.00K | 20,000 | Direct |
| 05 Jan, 2024 | Kirk Wheeler Michel | Chairman | Acquired M | 20,000 | $0.76 | $15.20K | 57,942 | Direct |
| 05 Jan, 2024 | Kirk Wheeler Michel | Chairman | Disposed F | 14,340 | $1.06 | $15.20K | 43,602 | Direct |
| 05 Jan, 2024 | Howard Spindel | Director | Disposed F | 18,868 | $1.06 | $20.00K | 1,132 | Direct |
| 05 Jan, 2024 | Howard Spindel | Director | Disposed G | 1,132 | $0.00 | $0 | 0 | Direct |
| 05 Jan, 2024 | Howard Spindel | Director | Acquired G | 1,132 | $0.00 | $0 | 42,504 | Indirect |
| 05 Jan, 2024 | Kirk Wheeler Michel | Chairman | Disposed M | 20,000 | $0.00 | $0 | 0 | Direct |