Castleark Management LLC
- SEC CIK
- 0001106832
- Latest filing
- Aug 14, 2026
MTZ holding history
Mastec Inc in every 13F filed by Castleark Management LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.
MTZ overviewAll 13F holders of MTZFull Q2 2026 holdings
- Shares (Q2 2026)
- 2,690
- Value
- $1.12M
- % of portfolio
- <0.1%
- Quarters held
- 9
- Since Q4 2022
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q2 2026 | 2,690 | $1.12M | <0.1% | 00.0% | Unchanged | Holders |
| Q1 2026 | 2,690 | $865.5K | <0.1% | −5,780−68.2% | Reduced | Holders |
| Q4 2025 | 8,470 | $1.84M | 0.1% | +4,930+139.3% | Added | Holders |
| Q3 2025 | 3,540 | $753.3K | <0.1% | 00.0% | Unchanged | Holders |
| Q2 2025 | 3,540 | $603.3K | <0.1% | −4,300−54.8% | Reduced | Holders |
| Q1 2025 | 7,840 | $915.0K | <0.1% | +7,840 | New | Holders |
| Q3 2023 | 0 | $0 | 0.0% | −61,080−100.0% | Sold out | Holders |
| Q2 2023 | 61,080 | $7.21M | 0.3% | −4,350−6.6% | Reduced | Holders |
| Q1 2023 | 65,430 | $6.18M | 0.3% | 00.0% | Unchanged | Holders |
| Q4 2022 | 65,430 | $5.58M | 0.3% | +65,430 | New | Holders |