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$CSTL
$34.51 +$1.21 (3.63%) Close

$CSTL SEC Filings

Filed On Filing
21 Oct 2026 Form 4: Maetzold Derek J, Director

Sold 14,496 shares ($463K)

14 Oct 2026 Form 4: Juvenal Tobin W, Chief Commercial Officer

Sold 3,288 shares ($111K)

13 Oct 2026 144
07 Oct 2026 Form 4: Maetzold Derek J, Director

Received 8,165 shares by exercise or conversion ($19.5K) · Sold 14,496 shares ($516K)

05 Oct 2026 Form 4: Oelschlager Kristen M, Chief Operating Officer

Received 4,153 shares by exercise or conversion ($14K) · Sold 4,153 shares ($149K)

05 Oct 2026 144
01 Oct 2026 Form 4: Juvenal Tobin W, Chief Commercial Officer

Sold 5,543 shares ($197K) · Sold 1,034 shares ($35.4K)

01 Oct 2026 144
23 Sep 2026 Form 4: Maetzold Derek J, Director

Received 8,580 shares by exercise or conversion ($20.5K) · Sold 14,496 shares ($512K)

16 Sep 2026 Form 4: Juvenal Tobin W, Chief Commercial Officer

Sold 3,306 shares ($107K) · Sold 3,294 shares ($116K)

15 Sep 2026 Form 4: Maetzold Derek J, Director

Received 8,584 shares by exercise or conversion ($20.5K) · Sold 14,518 shares ($465K)

14 Sep 2026 144
11 Sep 2026 144
03 Sep 2026 Form 4: Oelschlager Kristen M, Chief Operating Officer

Received 4,152 shares by exercise or conversion ($14K) · Sold 4,152 shares ($139K)

02 Sep 2026 Form 4: Juvenal Tobin W, Chief Commercial Officer

Sold 1,730 shares ($56.8K)

01 Sep 2026 Form 4: Maetzold Derek J, Director

Received 12,428 shares by exercise or conversion ($29.7K) · Sold 18,560 shares ($616K)

27 Aug 2026 Form 4: Juvenal Tobin W, Chief Commercial Officer

Sold 9,050 shares ($317K)

26 Aug 2026 Form 4: Oelschlager Kristen M, Chief Operating Officer

Sold 12,218 shares ($412K) · Sold 12,384 shares ($426K)

25 Aug 2026 144
24 Aug 2026 144

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