PAGEInsider
| Ticker | Owner | Relationship | Date | Transaction | Cost | #Shares | Value ($) | #Shares Total | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| OSIS | Ballhaus William Francis JR | Director | Sep 12 '25 | Sale | 237.84 | 562 | 133,666 | 25,600 | Sep 15 |
| OSIS | Ballhaus William Francis JR | Director | May 21 '25 | Sale | 228.88 | 750 | 171,660 | 24,055 | May 22 |
| OSIS | Ballhaus William Francis JR | Director | May 06 '25 | Sale | 219.77 | 933 | 205,045 | 24,805 | May 07 |
| OSIS | Ballhaus William Francis JR | Director | Dec 10 '24 | Sale | 181.63 | 675 | 122,600 | 26,516 | Dec 12 |
| OSIS | Ballhaus William Francis JR | Director | May 08 '24 | Sale | 133.98 | 675 | 90,437 | 25,907 | May 09 |
| OSIS | Ballhaus William Francis JR | Director | Jun 14 '23 | Sale | 125.72 | 1,025 | 128,863 | 22,935 | Jun 15 |
| OSIS | Ballhaus William Francis JR | Director | Feb 01 '23 | Sale | 94.96 | 400 | 37,984 | 23,960 | Feb 03 |
| OSIS | Ballhaus William Francis JR | Director | Mar 09 '21 | Sale | 98.96 | 400 | 39,584 | 21,842 | Mar 11 |