William Francis Ballhaus JR insider trades: Osi Systems (OSIS) stock sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where William reports to the SEC
Open-market buys and sales
12 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Sep 12, 2025 | OSIS | ↓ Sell | 562 | $237.84 | $134K | Indirect | Sep 15, 2025 (3d) |
| May 21, 2025 | OSIS | ↓ Sell | 750 | $228.88 | $172K | Indirect | May 22, 2025 (1d) |
| May 6, 2025 | OSIS | ↓ Sell | 933 | $219.77 | $205K | Indirect | May 7, 2025 (1d) |
| Dec 10, 2024 | OSIS | ↓ Sell | 675 | $181.63 | $123K | Indirect | Dec 12, 2024 (2d) |
| May 8, 2024 | OSIS | ↓ Sell | 675 | $133.98 | $90K | Indirect | May 9, 2024 (1d) |
| Jun 14, 2023 | OSIS | ↓ Sell | 1,025 | $125.72 | $129K | Indirect | Jun 15, 2023 (1d) |
| Feb 1, 2023 | OSIS | ↓ Sell | 400 | $94.96 | $38K | Indirect | Feb 3, 2023 (2d) |
| Mar 9, 2021 | OSIS | ↓ Sell | 400 | $98.96 | $40K | Indirect | Mar 11, 2021 (2d) |
| Feb 25, 2020 | OSIS | ↓ Sell | 651 | $89.68 | $58K | Indirect | Feb 25, 2020 (0d) |
| Feb 4, 2019 | OSIS | ↓ Sell10b5-1 | 675 | $89.14 | $60K | Indirect | Feb 6, 2019 (2d) |
| Dec 15, 2016 | OSIS | ↓ Sell | 875 | $76.12 | $67K | Indirect | Aug 9, 2017 (237d) |
| Sep 10, 2014 | OSIS | ↓ Sell | 875 | $66.68 | $58K | Direct | Sep 11, 2014 (1d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other OSIS insiders
Open-market trades in the last 12 months
About William Francis Ballhaus JR's insider trades
William Francis Ballhaus JR is an insider at Osi Systems (OSIS). Since Sep 10, 2014, William has reported no open-market purchases and 12 sales worth $1.2M on SEC Form 4. There have been no open-market trades in the last 12 months.
1 sale (5% of the value sold) was made under a Rule 10b5-1 trading plan, which is set up months in advance and runs on a schedule, so it says little about how the insider sees the stock today.
Their filings also include grants and awards (19 filings), gifts (15 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every OSIS insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.