William Francis Ballhaus Jr serves as Executive at OSI SYSTEMS INC, where they oversee executive responsibilities. Since joining the company, William Francis Ballhaus Jr has executed 38 insider transactions totaling $674.0K, demonstrating a bearish approach to their equity position. Their most recent transaction on Nov 4, 2025 involved gifting 750 shares valued at $0.
William Francis Ballhaus Jr currently holds 24,850 shares of OSI SYSTEMS INC (OSIS), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, William Francis Ballhaus Jr has been a net seller of OSIS stock. They have purchased $0 and sold $674.0K worth of shares.
William Francis Ballhaus Jr's most recent insider trade was on Nov 4, 2025, when they sold 750 shares at $0.00 per share.
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| $237.84 |
| Discretionary |
| Aug 20, 2025 | OSIS | $225.0K | Award | 1,007 | $223.39 | Discretionary |
| Aug 20, 2025 | OSIS | $225.0K | Award | 1,007 | $223.39 | Discretionary |
| Aug 20, 2025 | OSIS | $225.0K | Award | 1,007 | $223.39 | Discretionary |
| Jul 9, 2025 | OSIS | $0 | Gift | 113 | $N/A | Discretionary |
| Aug 14, 2024 | OSIS | $224.9K | Award | 1,618 | $139.02 | Discretionary |
| May 8, 2024 | OSIS | $90.4K | Sale | 675 | $133.98 | Discretionary |
| Jul 28, 2023 | OSIS | $225.0K | Award | 1,913 | $117.63 | Discretionary |
| Jun 14, 2023 | OSIS | $128.9K | Sale | 1,025 | $125.72 | Discretionary |
| Jun 8, 2023 | OSIS | $0 | Gift | 622 | $N/A | Discretionary |
| Feb 1, 2023 | OSIS | $38.0K | Sale | 400 | $94.96 | Discretionary |
| Aug 16, 2022 | OSIS | $0 | Gift | 744 | $N/A | Discretionary |
| Jul 6, 2022 | OSIS | $0 | Award | 2,590 | $N/A | Discretionary |
| Nov 23, 2021 | OSIS | $0 | Gift | 53 | $N/A | Discretionary |
| Jul 8, 2021 | OSIS | $0 | Award | 2,262 | $N/A | Discretionary |
| Mar 9, 2021 | OSIS | $39.6K | Sale | 400 | $98.96 | Discretionary |
| Dec 28, 2020 | OSIS | $0 | Gift | 6 | $N/A | Discretionary |
| Jul 8, 2020 | OSIS | $0 | Award | 3,225 | $N/A | Discretionary |
| Feb 25, 2020 | OSIS | $58.4K | Sale | 651 | $89.68 | Discretionary |
| Aug 5, 2019 | OSIS | $0 | Gift | 770 | $N/A | Discretionary |
| Jul 3, 2019 | OSIS | $0 | Award | 1,941 | $N/A | Discretionary |
| Feb 4, 2019 | OSIS | $60.2K | Sale | 675 | $89.14 | Discretionary |
| Sep 11, 2018 | OSIS | $0 | Gift | 10 | $N/A | Discretionary |
| Sep 6, 2018 | OSIS | $0 | Gift | 10 | $N/A | Discretionary |
| Aug 7, 2018 | OSIS | $0 | Gift | 20 | $N/A | Discretionary |
| Jul 6, 2018 | OSIS | $0 | Award | 2,606 | $N/A | Discretionary |
| Aug 22, 2017 | OSIS | $0 | Award | 2,515 | $N/A | Discretionary |
| Dec 15, 2016 | OSIS | $66.6K | Sale | 875 | $76.12 | Discretionary |
| Aug 1, 2016 | OSIS | $0 | Award | 4,100 | $N/A | Discretionary |