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CSTL • CIK 0001447362
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People and entities that have reported ownership via Form 3, 3/A, 4, 4/A, 5, 5/A
Parsed transactions from Form 4 (and 3/5) filings (past year)
0 transactions · 0 shares
— total value
181 transactions · 485.80K shares
$14.44M total value
43 transactions · 336.18K shares
| Filing Date | Insiders | Transactions | Filing |
|---|---|---|---|
| Oct 7, 2026 | MAETZOLD DEREK J | Exercised 16.33K options @ $1.195/share; sold 14.50K @ $35.566/share ($515.56K) | View |
| Oct 5, 2026 | Oelschlager Kristen M | Exercised 8.31K options @ $1.69/share; sold 4.15K @ $35.9542/share ($149.32K) | View |
| Oct 1, 2026 | Juvenal Tobin W | Sold 6.58K @ $35.2939/share ($232.13K) | View |
| Sep 23, 2026 | MAETZOLD DEREK J | Exercised 17.16K options @ $1.195/share; sold 14.50K @ $35.334/share ($512.20K) | View |
| Sep 16, 2026 | Juvenal Tobin W | Sold 6.60K @ $33.7304/share ($222.62K) | View |
| Sep 15, 2026 | MAETZOLD DEREK J | Exercised 17.17K options @ $1.195/share; sold 14.52K @ $32.0203/share ($464.87K) | View |
| Sep 3, 2026 | Oelschlager Kristen M | Exercised 8.30K options @ $1.69/share; sold 4.15K @ $33.3918/share ($138.64K) | View |
| Sep 2, 2026 | Juvenal Tobin W | Sold 1.73K @ $32.81/share ($56.76K) | View |
| Sep 1, 2026 | MAETZOLD DEREK J | Exercised 12.43K options @ $2.39/share; sold 18.56K @ $33.1969/share ($616.13K) | View |
| Aug 27, 2026 | Juvenal Tobin W | Sold 9.05K @ $35.04/share ($317.11K) | View |
| Aug 26, 2026 | Oelschlager Kristen M | Sold 24.60K @ $34.0568/share ($837.86K) | View |
| Aug 19, 2026 | Juvenal Tobin W | Sold 1.73K @ $29.59/share ($51.19K) | View |
| Aug 18, 2026 | Stokes Frank | Sold 24.91K @ $29.77/share ($741.51K) | View |
| Aug 18, 2026 | MAETZOLD DEREK J | Exercised 1.10K options @ $2.39/share; sold 7.23K @ $30.02/share ($217.10K) | View |
| Aug 6, 2026 | MAETZOLD DEREK J | Exercised 22.90K options @ $2.39/share; sold 39.02K @ $31.0701/share ($1.21M) | View |
| Aug 4, 2026 | MAETZOLD DEREK J | Exercised 17.14K options @ $2.39/share; sold 28.65K @ $30.2818/share ($867.45K) | View |
| Jul 29, 2026 | MAETZOLD DEREK J | Exercised 6.21K options @ $2.39/share; sold 9.84K @ $24.1645/share ($237.68K) | View |
| Jul 16, 2026 | MAETZOLD DEREK J | Exercised 550 options @ $2.39/share; sold 4.17K @ $22.92/share ($95.62K) | View |
| Jul 6, 2026 | MAETZOLD DEREK J | Exercised 6.21K options @ $2.39/share; sold 9.84K @ $24.29/share ($238.92K) | View |
| Jun 17, 2026 | MAETZOLD DEREK J | Exercised 550 options @ $2.39/share; sold 4.17K @ $20.66/share ($86.19K) | View |
| Jun 3, 2026 | MAETZOLD DEREK J | Exercised 6.21K options @ $2.39/share; sold 9.84K @ $20.857/share ($205.15K) | View |
| Jun 1, 2026 | — | — | View |
| Jun 1, 2026 | — | — | View |
| Jun 1, 2026 | — | — | View |
| May 27, 2026 | BRADBURY DANIEL | Exercised 13.67K options | View |
| May 27, 2026 | Olson Tiffany | Exercised 13.67K options | View |
| May 27, 2026 | Cole G Bradley | Exercised 13.67K options | View |
| May 22, 2026 | MAETZOLD DEREK J | Exercised 550 options @ $2.39/share; sold 4.17K @ $20.15/share ($84.07K) | View |
| May 11, 2026 | MAETZOLD DEREK J | Exercised 6.21K options @ $2.39/share; sold 9.84K @ $22.1537/share ($217.90K) | View |
| Apr 23, 2026 | MAETZOLD DEREK J | Exercised 550 options @ $2.39/share; sold 4.17K @ $25.098/share ($104.71K) | View |
| Apr 8, 2026 | MAETZOLD DEREK J | Exercised 6.21K options @ $2.39/share; sold 9.84K @ $25.03/share ($246.20K) | View |
| Mar 30, 2026 | MAETZOLD DEREK J | Exercised 550 options @ $2.39/share; sold 4.17K @ $25.551/share ($106.60K) | View |
| Mar 19, 2026 | MAETZOLD DEREK J | Sold 19.30K @ $25.9118/share ($500.10K) | View |
| Mar 17, 2026 | MAETZOLD DEREK J | Sold 30.78K @ $25.7451/share ($792.41K) | View |
| Mar 13, 2026 | MAETZOLD DEREK J | Exercised 6.23K options @ $2.39/share; sold 44.13K @ $25.673/share ($1.13M) | View |
| Mar 9, 2026 | Cole G Bradley | Exercised 4.75K options @ $3.38/share; sold 7.40K @ $28.4651/share ($210.73K) | View |
| Mar 5, 2026 | MAETZOLD DEREK J | Exercised 59.10K options Tax Withholding: 36.97K @ $27.861 ($1.03M) | View |
| Jan 14, 2026 | Oelschlager Kristen M | Grant/Award: 9.21K shares | View |
| Jan 14, 2026 | Juvenal Tobin W | Grant/Award: 9.21K shares | View |
| Jan 14, 2026 | Stokes Frank | Grant/Award: 8.12K shares | View |
| Dec 19, 2025 | Oelschlager Kristen M | Sold 14.89K @ $39.313/share ($585.29K) | View |
| Dec 15, 2025 | Juvenal Tobin W | Sold 13.20K @ $37.48/share ($494.74K) | View |
| Dec 15, 2025 | Stokes Frank | Sold 4.50K @ $37.45/share ($168.38K) | View |
| Dec 11, 2025 | Oelschlager Kristen M | Exercised 22.13K options Tax Withholding: 7.24K @ $38.169 ($276.46K) | View |
| Dec 11, 2025 | Stokes Frank | Exercised 20.79K options Tax Withholding: 9.29K @ $38.1817 ($354.78K) | View |
| Dec 11, 2025 | Juvenal Tobin W | Exercised 22.13K options Tax Withholding: 8.93K @ $38.1859 ($341.04K) | View |
| Nov 24, 2025 | Juvenal Tobin W | Exercised 4.69K options @ $3.38/share; sold 4.69K @ $35.58/share ($166.98K) | View |
| Nov 14, 2025 | Juvenal Tobin W | Exercised 700 options @ $3.38/share; sold 700 @ $35.3929/share ($24.77K) | View |
| Nov 13, 2025 | Stokes Frank | Sold 5.39K @ $35.08/share ($189.01K) | View |
| Nov 13, 2025 | Juvenal Tobin W | Sold 700 @ $35.3929/share ($24.77K) | View |
| Nov 13, 2025 | Oelschlager Kristen M | Sold 18.93K @ $35.10/share ($664.51K) | View |
| Nov 4, 2025 | Oelschlager Kristen M | Sold 12.68K @ $25.04/share ($317.46K) | View |
| Nov 4, 2025 | Oelschlager Kristen M | Sold 18.01K @ $21.69/share ($390.57K) | View |