Company
CSTL · CIK 0001447362
Acquisition (code M) of 8,580 shares at $2.39 per share.
Reporting Person MAETZOLD DEREK J · Officer Title Pres. & Chief Exec. Officer · Transaction Code M
Traded Sep 21, 2026 · Disclosed Sep 23, 2026
Source: SEC Form 4 · 0001628280-26-063221 · filed 2026-09-23 · View filing →
Sale of 8,580 shares at $35.334 per share.
Reporting Person MAETZOLD DEREK J · Officer Title Pres. & Chief Exec. Officer · Transaction Code S
Traded Sep 21, 2026 · Disclosed Sep 23, 2026
Source: SEC Form 4 · 0001628280-26-063221 · filed 2026-09-23 · View filing →
Sale of 3,198 shares at $35.334 per share.
Reporting Person MAETZOLD DEREK J · Officer Title Pres. & Chief Exec. Officer · Transaction Code S
Traded Sep 21, 2026 · Disclosed Sep 23, 2026
Source: SEC Form 4 · 0001628280-26-063221 · filed 2026-09-23 · View filing →
Sale of 2,718 shares at $35.334 per share.
Reporting Person MAETZOLD DEREK J · Officer Title Pres. & Chief Exec. Officer · Transaction Code S
Traded Sep 21, 2026 · Disclosed Sep 23, 2026
Source: SEC Form 4 · 0001628280-26-063221 · filed 2026-09-23 · View filing →
Sale of 3,294 shares at $35.142 per share.
Reporting Person Juvenal Tobin W · Officer Title Chief Commercial Officer · Transaction Code S
Traded Sep 15, 2026 · Disclosed Sep 16, 2026
Source: SEC Form 4 · 0001628280-26-062255 · filed 2026-09-16 · View filing →
Sale of 3,306 shares at $32.324 per share.
Reporting Person Juvenal Tobin W · Officer Title Chief Commercial Officer · Transaction Code S
Traded Sep 14, 2026 · Disclosed Sep 16, 2026
Source: SEC Form 4 · 0001628280-26-062255 · filed 2026-09-16 · View filing →
Acquisition (code M) of 8,584 shares at $2.39 per share.
Reporting Person MAETZOLD DEREK J · Officer Title Pres. & Chief Exec. Officer · Transaction Code M
Traded Sep 11, 2026 · Disclosed Sep 15, 2026
Source: SEC Form 4 · 0001628280-26-062047 · filed 2026-09-15 · View filing →
Sale of 8,361 shares at $32 per share.
Reporting Person MAETZOLD DEREK J · Officer Title Pres. & Chief Exec. Officer · Transaction Code S
Traded Sep 11, 2026 · Disclosed Sep 15, 2026
Source: SEC Form 4 · 0001628280-26-062047 · filed 2026-09-15 · View filing →
Sale of 3,124 shares at $32 per share.
Reporting Person MAETZOLD DEREK J · Officer Title Pres. & Chief Exec. Officer · Transaction Code S
Traded Sep 11, 2026 · Disclosed Sep 15, 2026
Source: SEC Form 4 · 0001628280-26-062047 · filed 2026-09-15 · View filing →
Sale of 2,656 shares at $32 per share.
Reporting Person MAETZOLD DEREK J · Officer Title Pres. & Chief Exec. Officer · Transaction Code S
Traded Sep 11, 2026 · Disclosed Sep 15, 2026
Source: SEC Form 4 · 0001628280-26-062047 · filed 2026-09-15 · View filing →
Sale of 223 shares at $32.78 per share.
Reporting Person MAETZOLD DEREK J · Officer Title Pres. & Chief Exec. Officer · Transaction Code S
Traded Sep 11, 2026 · Disclosed Sep 15, 2026
Source: SEC Form 4 · 0001628280-26-062047 · filed 2026-09-15 · View filing →
Sale of 83 shares at $32.78 per share.
Reporting Person MAETZOLD DEREK J · Officer Title Pres. & Chief Exec. Officer · Transaction Code S
Traded Sep 11, 2026 · Disclosed Sep 15, 2026
Source: SEC Form 4 · 0001628280-26-062047 · filed 2026-09-15 · View filing →
Sale of 71 shares at $32.78 per share.
Reporting Person MAETZOLD DEREK J · Officer Title Pres. & Chief Exec. Officer · Transaction Code S
Traded Sep 11, 2026 · Disclosed Sep 15, 2026
Source: SEC Form 4 · 0001628280-26-062047 · filed 2026-09-15 · View filing →
Acquisition (code M) of 4,152 shares at $3.38 per share.
Reporting Person Oelschlager Kristen M · Officer Title Chief Operating Officer · Transaction Code M
Traded Sep 1, 2026 · Disclosed Sep 3, 2026
Source: SEC Form 4 · 0001628280-26-060430 · filed 2026-09-03 · View filing →
Sale of 3,952 shares at $33.36 per share.
Reporting Person Oelschlager Kristen M · Officer Title Chief Operating Officer · Transaction Code S
Traded Sep 1, 2026 · Disclosed Sep 3, 2026
Source: SEC Form 4 · 0001628280-26-060430 · filed 2026-09-03 · View filing →
Sale of 200 shares at $34.02 per share.
Reporting Person Oelschlager Kristen M · Officer Title Chief Operating Officer · Transaction Code S
Traded Sep 1, 2026 · Disclosed Sep 3, 2026
Source: SEC Form 4 · 0001628280-26-060430 · filed 2026-09-03 · View filing →
Sale of 1,730 shares at $32.81 per share.
Reporting Person Juvenal Tobin W · Officer Title Chief Commercial Officer · Transaction Code S
Traded Aug 31, 2026 · Disclosed Sep 2, 2026
Source: SEC Form 4 · 0001628280-26-060089 · filed 2026-09-02 · View filing →
Acquisition (code M) of 12,428 shares at $2.39 per share.
Reporting Person MAETZOLD DEREK J · Officer Title Pres. & Chief Exec. Officer · Transaction Code M
Traded Aug 28, 2026 · Disclosed Sep 1, 2026
Source: SEC Form 4 · 0001628280-26-059816 · filed 2026-09-01 · View filing →
Sale of 209 shares at $33.88 per share.
Reporting Person MAETZOLD DEREK J · Officer Title Pres. & Chief Exec. Officer · Transaction Code S
Traded Aug 28, 2026 · Disclosed Sep 1, 2026
Source: SEC Form 4 · 0001628280-26-059816 · filed 2026-09-01 · View filing →
Sale of 177 shares at $33.88 per share.
Reporting Person MAETZOLD DEREK J · Officer Title Pres. & Chief Exec. Officer · Transaction Code S
Traded Aug 28, 2026 · Disclosed Sep 1, 2026
Source: SEC Form 4 · 0001628280-26-059816 · filed 2026-09-01 · View filing →
Sale of 21 shares at $33.88 per share.
Reporting Person MAETZOLD DEREK J · Officer Title Pres. & Chief Exec. Officer · Transaction Code S
Traded Aug 28, 2026 · Disclosed Sep 1, 2026
Source: SEC Form 4 · 0001628280-26-059816 · filed 2026-09-01 · View filing →
Sale of 21 shares at $33.88 per share.
Reporting Person MAETZOLD DEREK J · Officer Title Pres. & Chief Exec. Officer · Transaction Code S
Traded Aug 28, 2026 · Disclosed Sep 1, 2026
Source: SEC Form 4 · 0001628280-26-059816 · filed 2026-09-01 · View filing →
Sale of 21 shares at $33.88 per share.
Reporting Person MAETZOLD DEREK J · Officer Title Pres. & Chief Exec. Officer · Transaction Code S
Traded Aug 28, 2026 · Disclosed Sep 1, 2026
Source: SEC Form 4 · 0001628280-26-059816 · filed 2026-09-01 · View filing →
Sale of 21 shares at $33.88 per share.
Reporting Person MAETZOLD DEREK J · Officer Title Pres. & Chief Exec. Officer · Transaction Code S
Traded Aug 28, 2026 · Disclosed Sep 1, 2026
Source: SEC Form 4 · 0001628280-26-059816 · filed 2026-09-01 · View filing →
Sale of 11,472 shares at $33.14 per share.
Reporting Person MAETZOLD DEREK J · Officer Title Pres. & Chief Exec. Officer · Transaction Code S
Traded Aug 28, 2026 · Disclosed Sep 1, 2026
Source: SEC Form 4 · 0001628280-26-059816 · filed 2026-09-01 · View filing →
Sale of 2,505 shares at $33.14 per share.
Reporting Person MAETZOLD DEREK J · Officer Title Pres. & Chief Exec. Officer · Transaction Code S
Traded Aug 28, 2026 · Disclosed Sep 1, 2026
Source: SEC Form 4 · 0001628280-26-059816 · filed 2026-09-01 · View filing →
Sale of 2,129 shares at $33.14 per share.
Reporting Person MAETZOLD DEREK J · Officer Title Pres. & Chief Exec. Officer · Transaction Code S
Traded Aug 28, 2026 · Disclosed Sep 1, 2026
Source: SEC Form 4 · 0001628280-26-059816 · filed 2026-09-01 · View filing →
Sale of 257 shares at $33.14 per share.
Reporting Person MAETZOLD DEREK J · Officer Title Pres. & Chief Exec. Officer · Transaction Code S
Traded Aug 28, 2026 · Disclosed Sep 1, 2026
Source: SEC Form 4 · 0001628280-26-059816 · filed 2026-09-01 · View filing →
Sale of 257 shares at $33.14 per share.
Reporting Person MAETZOLD DEREK J · Officer Title Pres. & Chief Exec. Officer · Transaction Code S
Traded Aug 28, 2026 · Disclosed Sep 1, 2026
Source: SEC Form 4 · 0001628280-26-059816 · filed 2026-09-01 · View filing →
Sale of 257 shares at $33.14 per share.
Reporting Person MAETZOLD DEREK J · Officer Title Pres. & Chief Exec. Officer · Transaction Code S
Traded Aug 28, 2026 · Disclosed Sep 1, 2026
Source: SEC Form 4 · 0001628280-26-059816 · filed 2026-09-01 · View filing →
Sale of 257 shares at $33.14 per share.
Reporting Person MAETZOLD DEREK J · Officer Title Pres. & Chief Exec. Officer · Transaction Code S
Traded Aug 28, 2026 · Disclosed Sep 1, 2026
Source: SEC Form 4 · 0001628280-26-059816 · filed 2026-09-01 · View filing →
Sale of 956 shares at $33.88 per share.
Reporting Person MAETZOLD DEREK J · Officer Title Pres. & Chief Exec. Officer · Transaction Code S
Traded Aug 28, 2026 · Disclosed Sep 1, 2026
Source: SEC Form 4 · 0001628280-26-059816 · filed 2026-09-01 · View filing →
Sale of 9,050 shares at $35.04 per share.
Reporting Person Juvenal Tobin W · Officer Title Chief Commercial Officer · Transaction Code S
Traded Aug 25, 2026 · Disclosed Aug 27, 2026
Source: SEC Form 4 · 0001628280-26-059272 · filed 2026-08-27 · View filing →
Sale of 7,161 shares at $34.263 per share.
Reporting Person Oelschlager Kristen M · Officer Title Chief Operating Officer · Transaction Code S
Traded Aug 25, 2026 · Disclosed Aug 26, 2026
Source: SEC Form 4 · 0001628280-26-059091 · filed 2026-08-26 · View filing →
Sale of 5,223 shares at $34.639 per share.
Reporting Person Oelschlager Kristen M · Officer Title Chief Operating Officer · Transaction Code S
Traded Aug 25, 2026 · Disclosed Aug 26, 2026
Source: SEC Form 4 · 0001628280-26-059091 · filed 2026-08-26 · View filing →
Sale of 12,218 shares at $33.687 per share.
Reporting Person Oelschlager Kristen M · Officer Title Chief Operating Officer · Transaction Code S
Traded Aug 24, 2026 · Disclosed Aug 26, 2026
Source: SEC Form 4 · 0001628280-26-059091 · filed 2026-08-26 · View filing →
Sale of 1,730 shares at $29.59 per share.
Reporting Person Juvenal Tobin W · Officer Title Chief Commercial Officer · Transaction Code S
Traded Aug 17, 2026 · Disclosed Aug 19, 2026
Source: SEC Form 4 · 0001628280-26-057949 · filed 2026-08-19 · View filing →
Acquisition (code M) of 1,100 shares at $2.39 per share.
Reporting Person MAETZOLD DEREK J · Officer Title Pres. & Chief Exec. Officer · Transaction Code M
Traded Aug 14, 2026 · Disclosed Aug 18, 2026
Source: SEC Form 4 · 0001628280-26-057642 · filed 2026-08-18 · View filing →
Sale of 1,100 shares at $30.02 per share.
Reporting Person MAETZOLD DEREK J · Officer Title Pres. & Chief Exec. Officer · Transaction Code S
Traded Aug 14, 2026 · Disclosed Aug 18, 2026
Source: SEC Form 4 · 0001628280-26-057642 · filed 2026-08-18 · View filing →
Sale of 2,714 shares at $30.02 per share.
Reporting Person MAETZOLD DEREK J · Officer Title Pres. & Chief Exec. Officer · Transaction Code S
Traded Aug 14, 2026 · Disclosed Aug 18, 2026
Source: SEC Form 4 · 0001628280-26-057642 · filed 2026-08-18 · View filing →
Sale of 2,306 shares at $30.02 per share.
Reporting Person MAETZOLD DEREK J · Officer Title Pres. & Chief Exec. Officer · Transaction Code S
Traded Aug 14, 2026 · Disclosed Aug 18, 2026
Source: SEC Form 4 · 0001628280-26-057642 · filed 2026-08-18 · View filing →
Sale of 278 shares at $30.02 per share.
Reporting Person MAETZOLD DEREK J · Officer Title Pres. & Chief Exec. Officer · Transaction Code S
Traded Aug 14, 2026 · Disclosed Aug 18, 2026
Source: SEC Form 4 · 0001628280-26-057642 · filed 2026-08-18 · View filing →
Sale of 278 shares at $30.02 per share.
Reporting Person MAETZOLD DEREK J · Officer Title Pres. & Chief Exec. Officer · Transaction Code S
Traded Aug 14, 2026 · Disclosed Aug 18, 2026
Source: SEC Form 4 · 0001628280-26-057642 · filed 2026-08-18 · View filing →
Sale of 278 shares at $30.02 per share.
Reporting Person MAETZOLD DEREK J · Officer Title Pres. & Chief Exec. Officer · Transaction Code S
Traded Aug 14, 2026 · Disclosed Aug 18, 2026
Source: SEC Form 4 · 0001628280-26-057642 · filed 2026-08-18 · View filing →
Sale of 278 shares at $30.02 per share.
Reporting Person MAETZOLD DEREK J · Officer Title Pres. & Chief Exec. Officer · Transaction Code S
Traded Aug 14, 2026 · Disclosed Aug 18, 2026
Source: SEC Form 4 · 0001628280-26-057642 · filed 2026-08-18 · View filing →
Sale of 24,908 shares at $29.77 per share.
Reporting Person Stokes Frank · Officer Title Chief Financial Officer · Transaction Code S
Traded Aug 14, 2026 · Disclosed Aug 18, 2026
Source: SEC Form 4 · 0001628280-26-057644 · filed 2026-08-18 · View filing →