Mihael Hristos Polymeropoulos, President and CEO of Vanda Pharmaceuticals Inc. ($VNDA), bought shares on the open market four times in the last year for a total of about $170,000, with his latest purchase on August 7, 2025. These buys rank 1,703rd among nearly 5,000 individual insiders, well below the average of 1.5 million per buyer across 3.3 transactions. He sold shares once for 1.3 million, most recently on March 2, 2026, ranking 4,372nd out of nearly 12,000 sellers versus an average of 8.6 million over 6.4 transactions.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 2, 2026 | Vanda Pharmaceuticals Inc. | $VNDA | Polymeropoulos Mihael Hristos | President and CEO | S | Common Stock | 156235 | $8.17 | 2,704,496.0000 | 59,108,030 | 5.46% | 0.26% |
| Feb. 18, 2026 | Vanda Pharmaceuticals Inc. | $VNDA | Polymeropoulos Mihael Hristos | President and CEO | A | Common Stock | 525000 | $0.00 | 2,860,731.0000 | 59,108,030 | 22.48% | 0.89% |
| Aug. 7, 2025 | Vanda Pharmaceuticals Inc. | $VNDA | Polymeropoulos Mihael Hristos | President and CEO | P | Common Stock | 10000 | $4.15 | 2,335,731.0000 | 58,316,044 | 0.43% | 0.02% |
| May 21, 2025 | Vanda Pharmaceuticals Inc. | $VNDA | Polymeropoulos Mihael Hristos | President and CEO | P | Common Stock | 481 | $4.39 | 2,325,731.0000 | 58,316,044 | 0.02% | 0.00% |
| May 21, 2025 | Vanda Pharmaceuticals Inc. | $VNDA | Polymeropoulos Mihael Hristos | President and CEO | P | Common Stock | 9519 | $4.40 | 2,325,250.0000 | 58,316,044 | 0.41% | 0.02% |
| May 16, 2025 | Vanda Pharmaceuticals Inc. | $VNDA | Polymeropoulos Mihael Hristos | President and CEO | P | Common Stock | 20000 | $4.22 | 2,315,731.0000 | 58,316,044 | 0.87% | 0.03% |
| March 6, 2025 | Vanda Pharmaceuticals Inc. | $VNDA | Polymeropoulos Mihael Hristos | President and CEO | P | Common Stock | 5000 | $5.02 | 2,290,731.0000 | 58,316,044 | 0.22% | 0.01% |
| March 6, 2025 | Vanda Pharmaceuticals Inc. | $VNDA | Polymeropoulos Mihael Hristos | President and CEO | P | Common Stock | 5000 | $5.01 | 2,295,731.0000 | 58,316,044 | 0.22% | 0.01% |
| March 5, 2025 | Vanda Pharmaceuticals Inc. | $VNDA | Polymeropoulos Mihael Hristos | President and CEO | P | Common Stock | 5000 | $5.01 | 2,280,731.0000 | 58,316,044 | 0.22% | 0.01% |
| March 5, 2025 | Vanda Pharmaceuticals Inc. | $VNDA | Polymeropoulos Mihael Hristos | President and CEO | P | Common Stock | 5000 | $5.03 | 2,285,731.0000 | 58,316,044 | 0.22% | 0.01% |
| March 3, 2025 | Vanda Pharmaceuticals Inc. | $VNDA | Polymeropoulos Mihael Hristos | President and CEO | P | Common Stock | 10000 | $4.71 | 2,275,731.0000 | 58,316,044 | 0.44% | 0.02% |
| March 1, 2025 | Vanda Pharmaceuticals Inc. | $VNDA | Polymeropoulos Mihael Hristos | President and CEO | F | Common Stock | 95999 | $4.76 | 2,265,731.0000 | 58,316,044 | 4.06% | 0.16% |
| Feb. 28, 2025 | Vanda Pharmaceuticals Inc. | $VNDA | Polymeropoulos Mihael Hristos | President and CEO | P | Common Stock | 10000 | $4.76 | 2,361,730.0000 | 58,316,044 | 0.43% | 0.02% |
| Feb. 27, 2025 | Vanda Pharmaceuticals Inc. | $VNDA | Polymeropoulos Mihael Hristos | President and CEO | P | Common Stock | 10000 | $4.76 | 2,351,730.0000 | 58,316,044 | 0.43% | 0.02% |
| Feb. 26, 2025 | Vanda Pharmaceuticals Inc. | $VNDA | Polymeropoulos Mihael Hristos | President and CEO | P | Common Stock | 5000 | $4.78 | 2,341,730.0000 | 58,316,044 | 0.21% | 0.01% |
| Feb. 26, 2025 | Vanda Pharmaceuticals Inc. | $VNDA | Polymeropoulos Mihael Hristos | President and CEO | P | Common Stock | 5000 | $4.75 | 2,336,730.0000 | 58,316,044 | 0.21% | 0.01% |
| Feb. 25, 2025 | Vanda Pharmaceuticals Inc. | $VNDA | Polymeropoulos Mihael Hristos | President and CEO | P | Common Stock | 10000 | $4.46 | 2,331,730.0000 | 58,316,044 | 0.43% | 0.02% |
| Feb. 18, 2025 | Vanda Pharmaceuticals Inc. | $VNDA | Polymeropoulos Mihael Hristos | President and CEO | A | Common Stock | 450000 | $0.00 | 2,321,730.0000 | 58,316,044 | 24.04% | 0.77% |
| March 4, 2024 | Vanda Pharmaceuticals Inc. | $VNDA | Polymeropoulos Mihael Hristos | President and CEO | S | Common Stock | 30884 | $4.24 | 1,896,018.0000 | 0 | 1.60% | 0.00% |
| March 5, 2024 | Vanda Pharmaceuticals Inc. | $VNDA | Polymeropoulos Mihael Hristos | President and CEO | S | Common Stock | 24288 | $4.13 | 1,871,730.0000 | 0 | 1.28% | 0.00% |
| Feb. 16, 2024 | Vanda Pharmaceuticals Inc. | $VNDA | Polymeropoulos Mihael Hristos | President and CEO | A | Common Stock | 450000 | $0.00 | 1,926,902.0000 | 0 | 30.47% | 0.00% |