Ballhaus William Francis Jr. sold OSI Systems Inc. ($OSIS) shares on the open market three times over the last year, for a total of $510,000. His most recent sale occurred on September 12, 2025. These transactions rank 6,388th among 11,678 insiders in the database by sale value, well below the average of $8.6 million across 6.37 transactions per insider. He made no open market purchases during this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nov. 4, 2025 | OSI SYSTEMS INC | $OSIS | Ballhaus William Francis JR | Not found | G | Common Stock | 750 | $0.00 | 28,551.0000 | 17,473,000 | 2.56% | 0.00% |
| Sept. 12, 2025 | OSI SYSTEMS INC | $OSIS | Ballhaus William Francis JR | Not found | S | Common Stock | 562 | $237.84 | 29,301.0000 | 17,178,000 | 1.88% | 0.00% |
| Aug. 20, 2025 | OSI SYSTEMS INC | $OSIS | Ballhaus William Francis JR | Not found | A | Common Stock | 1007 | $223.39 | 29,863.0000 | 17,178,000 | 3.49% | 0.01% |
| Aug. 20, 2025 | OSI SYSTEMS INC | $OSIS | Ballhaus William Francis JR | Not found | A | Common Stock | 1007 | $223.39 | 29,863.0000 | 17,178,000 | 3.49% | 0.01% |
| Aug. 20, 2025 | OSI SYSTEMS INC | $OSIS | Ballhaus William Francis JR | Not found | A | Common Stock | 1007 | $223.39 | 29,863.0000 | 17,178,000 | 3.49% | 0.01% |
| July 9, 2025 | OSI SYSTEMS INC | $OSIS | Ballhaus William Francis JR | Not found | G | Common Stock | 113 | $0.00 | 28,856.0000 | 17,178,000 | 0.39% | 0.00% |
| May 21, 2025 | OSI SYSTEMS INC | $OSIS | Ballhaus William Francis JR | Not found | S | Common Stock | 750 | $228.88 | 28,969.0000 | 17,159,000 | 2.52% | 0.00% |
| May 6, 2025 | OSI SYSTEMS INC | $OSIS | Ballhaus William Francis JR | Not found | S | Common Stock | 933 | $219.77 | 29,719.0000 | 17,159,000 | 3.04% | 0.01% |
| Feb. 10, 2025 | OSI SYSTEMS INC | $OSIS | Ballhaus William Francis JR | Not found | G | Common Stock | 750 | $0.00 | 30,652.0000 | 17,040,000 | 2.39% | 0.00% |
| Dec. 10, 2024 | OSI SYSTEMS INC | $OSIS | Ballhaus William Francis JR | Not found | G | Common Stock | 28 | $0.00 | 31,402.0000 | 17,055,000 | 0.09% | 0.00% |
| Dec. 10, 2024 | OSI SYSTEMS INC | $OSIS | Ballhaus William Francis JR | Not found | S | Common Stock | 675 | $181.63 | 31,430.0000 | 17,055,000 | 2.10% | 0.00% |
| Dec. 4, 2024 | OSI SYSTEMS INC | $OSIS | Ballhaus William Francis JR | Not found | G | Common Stock | 120 | $0.00 | 32,105.0000 | 17,055,000 | 0.37% | 0.00% |
| Nov. 13, 2024 | OSI SYSTEMS INC | $OSIS | Ballhaus William Francis JR | Not found | G | Common Stock | 875 | $0.00 | 32,225.0000 | 17,055,000 | 2.64% | 0.01% |
| May 21, 2024 | OSI SYSTEMS INC | $OSIS | Ballhaus William Francis JR | Not found | G | Common Stock | 73 | $0.00 | 33,173.0000 | 17,425,000 | 0.22% | 0.00% |
| May 21, 2024 | OSI SYSTEMS INC | $OSIS | Ballhaus William Francis JR | Not found | G | Common Stock | 73 | $0.00 | 33,246.0000 | 17,425,000 | 0.22% | 0.00% |
| July 3, 2024 | OSI SYSTEMS INC | $OSIS | Ballhaus William Francis JR | Not found | G | Common Stock | 73 | $0.00 | 33,100.0000 | 17,354,000 | 0.22% | 0.00% |
| Aug. 14, 2024 | OSI SYSTEMS INC | $OSIS | Ballhaus William Francis JR | Not found | A | Common Stock | 1618 | $139.02 | 33,319.0000 | 17,354,000 | 5.10% | 0.01% |
| May 8, 2024 | OSI SYSTEMS INC | $OSIS | Ballhaus William Francis JR | Not found | S | Common Stock | 675 | $133.98 | 31,701.0000 | 17,425,000 | 2.08% | 0.00% |
| July 28, 2023 | OSI SYSTEMS INC | $OSIS | Ballhaus William Francis JR | Not found | A | Common Stock | 1913 | $117.63 | 32,376.0000 | 17,190,000 | 6.28% | 0.01% |
| June 8, 2023 | OSI SYSTEMS INC | $OSIS | Ballhaus William Francis JR | Not found | G | Common Stock | 622 | $0.00 | 30,463.0000 | 17,184,000 | 2.00% | 0.00% |
| June 14, 2023 | OSI SYSTEMS INC | $OSIS | Ballhaus William Francis JR | Not found | S | Common Stock | 1025 | $125.72 | 31,085.0000 | 17,184,000 | 3.19% | 0.01% |
| Feb. 1, 2023 | OSI SYSTEMS INC | $OSIS | Ballhaus William Francis JR | Not found | S | Common Stock | 400 | $94.96 | 32,110.0000 | 17,103,000 | 1.23% | 0.00% |