CSTL Insider Activity
View recent SEC Form 4 insider transactions for CSTL, including purchases, sales, option exercises, and other insider filings.
| Date | Insider | Type | Quantity | Price | Total Value | Shares Owned |
|---|---|---|---|---|---|---|
| Sep 21, 2026 | MAETZOLD DEREK J | Sale | 2,718 | $35.33 | $96,037.81 | 9,550 |
| Sep 21, 2026 | MAETZOLD DEREK J | Exercise | 8,580 | $2.39 | $20,506.20 | 30,059 |
| Sep 21, 2026 | MAETZOLD DEREK J | Sale | 3,198 | $35.33 | $112,998.13 | 11,236 |
| Sep 15, 2026 | Juvenal Tobin W | Sale | 3,294 | $35.14 | $115,757.75 | 58,584 |
| Sep 14, 2026 | Juvenal Tobin W | Sale | 3,306 | $32.32 | $106,863.14 | 61,878 |
| Sep 11, 2026 | MAETZOLD DEREK J | Exercise | 8,584 | $2.39 | $20,515.76 | 30,063 |
| Sep 11, 2026 | MAETZOLD DEREK J | Sale | 71 | $32.78 | $2,327.38 | 12,268 |
| Sep 11, 2026 | MAETZOLD DEREK J | Sale | 2,656 | $32.00 | $84,992.00 | 12,339 |
| Sep 11, 2026 | MAETZOLD DEREK J | Sale | 3,124 | $32.00 | $99,968.00 | 14,517 |
| Sep 11, 2026 | MAETZOLD DEREK J | Sale | 8,361 | $32.00 | $267,552.00 | 21,702 |
| Sep 11, 2026 | MAETZOLD DEREK J | Sale | 223 | $32.78 | $7,309.94 | 21,479 |
| Sep 11, 2026 | MAETZOLD DEREK J | Sale | 83 | $32.78 | $2,720.74 | 14,434 |
| Sep 01, 2026 | Oelschlager Kristen M | Sale | 3,952 | $33.36 | $131,838.72 | 13,556 |
| Sep 01, 2026 | Oelschlager Kristen M | Sale | 200 | $34.02 | $6,804.00 | 13,356 |
| Sep 01, 2026 | Oelschlager Kristen M | Exercise | 4,152 | $3.38 | $14,033.76 | 17,508 |
| Aug 31, 2026 | Juvenal Tobin W | Sale | 1,730 | $32.81 | $56,761.30 | 65,184 |
| Aug 28, 2026 | MAETZOLD DEREK J | Exercise | 12,428 | $2.39 | $29,702.92 | 33,907 |
| Aug 28, 2026 | MAETZOLD DEREK J | Sale | 177 | $33.88 | $5,996.76 | 14,995 |
| Aug 28, 2026 | MAETZOLD DEREK J | Sale | 2,129 | $33.14 | $70,555.06 | 15,172 |
| Aug 28, 2026 | MAETZOLD DEREK J | Sale | 21 | $33.88 | $711.48 | 11,256 |
| Aug 28, 2026 | MAETZOLD DEREK J | Sale | 11,472 | $33.14 | $380,182.08 | 22,435 |
| Aug 28, 2026 | MAETZOLD DEREK J | Sale | 257 | $33.14 | $8,516.98 | 11,277 |
| Aug 28, 2026 | MAETZOLD DEREK J | Sale | 209 | $33.88 | $7,080.92 | 17,641 |
| Aug 28, 2026 | MAETZOLD DEREK J | Sale | 2,505 | $33.14 | $83,015.70 | 17,850 |
| Aug 28, 2026 | MAETZOLD DEREK J | Sale | 956 | $33.88 | $32,389.28 | 21,479 |
| Aug 25, 2026 | Juvenal Tobin W | Sale | 9,050 | $35.04 | $317,112.00 | 66,914 |
| Aug 25, 2026 | Oelschlager Kristen M | Sale | 7,161 | $34.26 | $245,357.34 | 77,872 |
| Aug 25, 2026 | Oelschlager Kristen M | Sale | 5,223 | $34.64 | $180,919.50 | 72,649 |
| Aug 24, 2026 | Oelschlager Kristen M | Sale | 12,218 | $33.69 | $411,587.77 | 85,033 |
| Aug 17, 2026 | Juvenal Tobin W | Sale | 1,730 | $29.59 | $51,190.70 | 75,964 |
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