$CSTL

📈 Chart

145 transactions across 39 dates · last 365 days

30d 90d 180d 365d

6-Month Buy/Sell Trend

Buys Sells
▶ 2026-04-21
▼ 7 sells · $105K 2 other
Insider Title Type Shares Price $ Value 10b5-1 Filed
MAETZOLD DEREK J Pres. & Chief Exec. Officer M 550 $2 $1K Plan Apr 23
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 550 $25 $14K Plan Apr 23
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 1,357 $25 $34K Plan Apr 23
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 1,153 $25 $29K Plan Apr 23
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 278 $25 $7K Plan Apr 23
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 278 $25 $7K Plan Apr 23
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 278 $25 $7K Plan Apr 23
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 278 $25 $7K Plan Apr 23
MAETZOLD DEREK J Pres. & Chief Exec. Officer M 550 $0 $0 Plan Apr 23
▶ 2026-04-06
▼ 7 sells · $246K 2 other
Insider Title Type Shares Price $ Value 10b5-1 Filed
MAETZOLD DEREK J Pres. & Chief Exec. Officer M 6,214 $2 $15K Plan Apr 8
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 6,214 $25 $156K Plan Apr 8
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 1,357 $25 $34K Plan Apr 8
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 1,153 $25 $29K Plan Apr 8
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 278 $25 $7K Plan Apr 8
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 278 $25 $7K Plan Apr 8
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 278 $25 $7K Plan Apr 8
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 278 $25 $7K Plan Apr 8
MAETZOLD DEREK J Pres. & Chief Exec. Officer M 6,214 $0 $0 Plan Apr 8
▶ 2026-03-26
▼ 7 sells · $107K 4 other
⚡ 2 insiders
Insider Title Type Shares Price $ Value 10b5-1 Filed
Cotton Rodney — M 5,329 — — Mar 30
Cotton Rodney — M 5,329 $0 $0 Mar 30
MAETZOLD DEREK J Pres. & Chief Exec. Officer M 550 $2 $1K Plan Mar 30
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 550 $26 $14K Plan Mar 30
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 1,357 $26 $35K Plan Mar 30
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 1,153 $26 $29K Plan Mar 30
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 278 $26 $7K Plan Mar 30
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 278 $26 $7K Plan Mar 30
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 278 $26 $7K Plan Mar 30
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 278 $26 $7K Plan Mar 30
MAETZOLD DEREK J Pres. & Chief Exec. Officer M 550 $0 $0 Plan Mar 30
▶ 2026-02-03
▼ 1 sell · $128K
Insider Title Type Shares Price $ Value 10b5-1 Filed
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 3,200 $40 $128K Plan Feb 5
▶ 2026-02-04
▼ 2 sells · $31K
Insider Title Type Shares Price $ Value 10b5-1 Filed
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 646 $38 $24K Plan Feb 5
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 171 $39 $7K Plan Feb 5
▶ 2026-01-20
▼ 1 sell · $161K
Insider Title Type Shares Price $ Value 10b5-1 Filed
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 4,017 $40 $161K Plan Jan 22
▶ 2026-01-12
8 other
⚡ 4 insiders
Insider Title Type Shares Price $ Value 10b5-1 Filed
MAETZOLD DEREK J Pres. & Chief Exec. Officer A 62,219 $0 $0 Jan 14
MAETZOLD DEREK J Pres. & Chief Exec. Officer A 62,219 $0 $0 Jan 14
Stokes Frank Chief Financial Officer A 8,124 $0 $0 Jan 14
Stokes Frank Chief Financial Officer A 8,124 $0 $0 Jan 14
Juvenal Tobin W Chief Commercial Officer A 9,207 $0 $0 Jan 14
Juvenal Tobin W Chief Commercial Officer A 9,207 $0 $0 Jan 14
Oelschlager Kristen M Chief Operating Officer A 9,207 $0 $0 Jan 14
Oelschlager Kristen M Chief Operating Officer A 9,207 $0 $0 Jan 14
▶ 2026-01-05
▼ 1 sell · $102K
Insider Title Type Shares Price $ Value 10b5-1 Filed
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 2,678 $38 $102K Plan Jan 7
▶ 2026-01-06
▼ 1 sell · $54K
Insider Title Type Shares Price $ Value 10b5-1 Filed
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 1,339 $40 $54K Plan Jan 7
▶ 2025-12-22
▼ 1 sell · $33K
Insider Title Type Shares Price $ Value 10b5-1 Filed
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 830 $40 $33K Plan Dec 29
▶ 2025-12-17
▼ 2 sells · $606K
⚡ 2 insiders
Insider Title Type Shares Price $ Value 10b5-1 Filed
Oelschlager Kristen M Chief Operating Officer ▼ Sell 14,888 $39 $585K Dec 19
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 509 $40 $20K Plan Dec 19
▶ 2025-12-15
▼ 2 sells · $757K
Insider Title Type Shares Price $ Value 10b5-1 Filed
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 18,513 $39 $717K Plan Dec 17
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 1,012 $39 $40K Plan Dec 17
▶ 2025-12-16
▼ 1 sell · $494K
Insider Title Type Shares Price $ Value 10b5-1 Filed
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 12,821 $39 $494K Plan Dec 17
▶ 2025-12-11
▼ 2 sells · $663K
⚡ 2 insiders
Insider Title Type Shares Price $ Value 10b5-1 Filed
Stokes Frank Chief Financial Officer ▼ Sell 4,496 $37 $168K Dec 15
Juvenal Tobin W Chief Commercial Officer ▼ Sell 13,200 $37 $495K Dec 15
▶ 2025-12-09
12 other
⚡ 4 insiders
Insider Title Type Shares Price $ Value 10b5-1 Filed
Juvenal Tobin W Chief Commercial Officer M 15,961 — — Dec 11
Juvenal Tobin W Chief Commercial Officer F 6,441 $38 $246K Dec 11
Juvenal Tobin W Chief Commercial Officer M 15,961 $0 $0 Dec 11
Stokes Frank Chief Financial Officer M 14,616 — — Dec 11
Stokes Frank Chief Financial Officer F 6,534 $38 $250K Dec 11
Stokes Frank Chief Financial Officer M 14,616 $0 $0 Dec 11
Oelschlager Kristen M Chief Operating Officer M 15,961 — — Dec 11
Oelschlager Kristen M Chief Operating Officer F 4,691 $38 $179K Dec 11
Oelschlager Kristen M Chief Operating Officer M 15,961 $0 $0 Dec 11
MAETZOLD DEREK J Pres. & Chief Exec. Officer M 33,495 — — Dec 11
MAETZOLD DEREK J Pres. & Chief Exec. Officer F 13,181 $38 $504K Dec 11
MAETZOLD DEREK J Pres. & Chief Exec. Officer M 33,495 $0 $0 Dec 11
▶ 2025-12-10
12 other
⚡ 4 insiders
Insider Title Type Shares Price $ Value 10b5-1 Filed
Juvenal Tobin W Chief Commercial Officer M 6,170 — — Dec 11
Juvenal Tobin W Chief Commercial Officer F 2,490 $38 $95K Dec 11
Juvenal Tobin W Chief Commercial Officer M 6,170 $0 $0 Dec 11
Stokes Frank Chief Financial Officer M 6,170 — — Dec 11
Stokes Frank Chief Financial Officer F 2,758 $38 $105K Dec 11
Stokes Frank Chief Financial Officer M 6,170 $0 $0 Dec 11
Oelschlager Kristen M Chief Operating Officer M 6,170 — — Dec 11
Oelschlager Kristen M Chief Operating Officer F 2,552 $38 $97K Dec 11
Oelschlager Kristen M Chief Operating Officer M 6,170 $0 $0 Dec 11
MAETZOLD DEREK J Pres. & Chief Exec. Officer M 15,424 — — Dec 11
MAETZOLD DEREK J Pres. & Chief Exec. Officer F 6,070 $38 $231K Dec 11
MAETZOLD DEREK J Pres. & Chief Exec. Officer M 15,424 $0 $0 Dec 11
▶ 2025-12-04
▼ 1 sell · $54K
Insider Title Type Shares Price $ Value 10b5-1 Filed
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 1,339 $40 $54K Plan Dec 8
▶ 2025-12-02
▼ 1 sell · $105K
Insider Title Type Shares Price $ Value 10b5-1 Filed
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 2,678 $39 $105K Plan Dec 4
▶ 2025-11-26
▼ 1 sell · $171K
Insider Title Type Shares Price $ Value 10b5-1 Filed
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 4,258 $40 $171K Plan Dec 1
▶ 2025-11-25
▼ 1 sell · $205K
Insider Title Type Shares Price $ Value 10b5-1 Filed
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 5,115 $40 $205K Plan Nov 26
▶ 2025-11-20
▼ 1 sell · $167K 2 other
Insider Title Type Shares Price $ Value 10b5-1 Filed
Juvenal Tobin W Chief Commercial Officer M 4,693 $3 $16K Plan Nov 24
Juvenal Tobin W Chief Commercial Officer ▼ Sell 4,693 $36 $167K Plan Nov 24
Juvenal Tobin W Chief Commercial Officer M 4,693 $0 $0 Plan Nov 24
▶ 2025-11-18
▼ 1 sell · $91K
Insider Title Type Shares Price $ Value 10b5-1 Filed
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 2,678 $34 $91K Plan Nov 20
▶ 2025-11-11
▼ 3 sells · $871K 2 other
⚡ 3 insiders
Insider Title Type Shares Price $ Value 10b5-1 Filed
Juvenal Tobin W Chief Commercial Officer M 500 $3 $2K Plan Nov 14
Juvenal Tobin W Chief Commercial Officer ▼ Sell 500 $35 $18K Plan Nov 14
Juvenal Tobin W Chief Commercial Officer M 500 $0 $0 Plan Nov 14
Oelschlager Kristen M Chief Operating Officer ▼ Sell 18,932 $35 $665K Plan Nov 13
Stokes Frank Chief Financial Officer ▼ Sell 5,388 $35 $189K Plan Nov 13
▶ 2025-11-12
▼ 1 sell · $7K 2 other
Insider Title Type Shares Price $ Value 10b5-1 Filed
Juvenal Tobin W Chief Commercial Officer M 200 $3 $676 Plan Nov 14
Juvenal Tobin W Chief Commercial Officer ▼ Sell 200 $35 $7K Plan Nov 14
Juvenal Tobin W Chief Commercial Officer M 200 $0 $0 Plan Nov 14
▶ 2025-11-04
▼ 2 sells · $204K
Insider Title Type Shares Price $ Value 10b5-1 Filed
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 6,458 $30 $196K Plan Nov 6
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 237 $31 $7K Plan Nov 6
▶ 2025-11-05
▼ 1 sell · $85K
Insider Title Type Shares Price $ Value 10b5-1 Filed
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 2,678 $32 $85K Plan Nov 6
▶ 2025-10-31
▼ 1 sell · $317K
Insider Title Type Shares Price $ Value 10b5-1 Filed
Oelschlager Kristen M Chief Operating Officer ▼ Sell 12,678 $25 $317K Plan Nov 4
▶ 2025-08-27
▼ 2 sells · $670K
Insider Title Type Shares Price $ Value 10b5-1 Filed
Oelschlager Kristen M Chief Operating Officer ▼ Sell 18,007 $22 $391K Nov 4
Oelschlager Kristen M Chief Operating Officer ▼ Sell 12,677 $22 $279K Plan Aug 29
▶ 2025-10-20
▼ 1 sell · $30K
Insider Title Type Shares Price $ Value 10b5-1 Filed
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 1,339 $22 $30K Plan Oct 23
▶ 2025-10-02
▼ 1 sell · $30K
Insider Title Type Shares Price $ Value 10b5-1 Filed
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 1,339 $23 $30K Plan Oct 6
▶ 2025-09-17
▼ 1 sell · $29K
Insider Title Type Shares Price $ Value 10b5-1 Filed
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 1,339 $22 $29K Plan Sep 19
▶ 2025-09-02
▼ 1 sell · $32K
Insider Title Type Shares Price $ Value 10b5-1 Filed
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 1,339 $24 $32K Plan Sep 4
▶ 2025-08-15
▼ 1 sell · $27K
Insider Title Type Shares Price $ Value 10b5-1 Filed
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 1,339 $20 $27K Plan Aug 19
▶ 2025-08-13
▼ 1 sell · $839K
Insider Title Type Shares Price $ Value 10b5-1 Filed
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 43,019 $20 $839K Plan Aug 15
▶ 2025-08-08
12 other
⚡ 4 insiders
Insider Title Type Shares Price $ Value 10b5-1 Filed
MAETZOLD DEREK J Pres. & Chief Exec. Officer M 66,991 $0 $0 Aug 12
MAETZOLD DEREK J Pres. & Chief Exec. Officer F 23,972 $19 $464K Aug 12
MAETZOLD DEREK J Pres. & Chief Exec. Officer M 66,991 $0 $0 Aug 12
Stokes Frank Chief Financial Officer M 9,744 $0 $0 Aug 12
Stokes Frank Chief Financial Officer F 4,356 $19 $84K Aug 12
Stokes Frank Chief Financial Officer M 9,744 $0 $0 Aug 12
Juvenal Tobin W Chief Commercial Officer M 10,640 $0 $0 Aug 12
Juvenal Tobin W Chief Commercial Officer F 4,294 $19 $83K Aug 12
Juvenal Tobin W Chief Commercial Officer M 10,640 $0 $0 Aug 12
Oelschlager Kristen M Chief Operating Officer M 10,640 $0 $0 Aug 12
Oelschlager Kristen M Chief Operating Officer F 2,804 $19 $54K Aug 12
Oelschlager Kristen M Chief Operating Officer M 10,640 $0 $0 Aug 12
▶ 2025-06-27
▼ 7 sells · $458K
Insider Title Type Shares Price $ Value 10b5-1 Filed
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 4,944 $20 $100K Plan Jul 1
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 8,068 $20 $164K Plan Jul 1
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 6,924 $20 $141K Plan Jul 1
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 660 $20 $13K Plan Jul 1
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 660 $20 $13K Plan Jul 1
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 660 $20 $13K Plan Jul 1
MAETZOLD DEREK J Pres. & Chief Exec. Officer ▼ Sell 660 $20 $13K Plan Jul 1
▶ 2025-05-21
15 other
⚡ 7 insiders
Insider Title Type Shares Price $ Value 10b5-1 Filed
BRADBURY DANIEL — M 8,673 — — May 23
BRADBURY DANIEL — M 8,673 $0 $0 May 23
Harrison Miles — M 8,673 — — May 23
Harrison Miles — M 8,673 $0 $0 May 23
Olson Tiffany — M 8,673 — — May 23
Olson Tiffany — M 8,673 $0 $0 May 23
Goldberg Ellen — M 8,673 — — May 23
Goldberg Ellen — M 8,673 $0 $0 May 23
Caple Kim — M 8,673 — — May 23
Caple Kim — M 8,673 $0 $0 May 23
Cotton Rodney — M 8,673 — — May 23
Cotton Rodney — M 6,721 $0 $0 May 23
Cotton Rodney — M 1,952 $0 $0 May 23
Cole G Bradley — M 8,673 — — May 23
Cole G Bradley — M 8,673 $0 $0 May 23
▶ 2025-05-22
7 other
⚡ 7 insiders
Insider Title Type Shares Price $ Value 10b5-1 Filed
BRADBURY DANIEL — A 13,667 $0 $0 May 23
Harrison Miles — A 13,667 $0 $0 May 23
Olson Tiffany — A 13,667 $0 $0 May 23
Goldberg Ellen — A 13,667 $0 $0 May 23
Caple Kim — A 13,667 $0 $0 May 23
Cotton Rodney — A 13,667 $0 $0 May 23
Cole G Bradley — A 13,667 $0 $0 May 23
▶ 2025-05-08
1 other
Insider Title Type Shares Price $ Value 10b5-1 Filed
Cotton Rodney — A 1,952 $0 $0 May 12