Csiszar Ernst N
Director · MTZ
As of 2026-09-16, Csiszar Ernst N has 17 Form 4 transactions on record across 1 company — 10 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Pattern in the record: open-market sales filed in March in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.
Reconstructed holdings
- Direct $2.5M
- Indirect $0
| MTZ | direct | 10,934 sh | $2.5M |
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-06-03 | MTZ | Sale | 6,500 @ $371.17 | $2.4M | −37.5% of holding | 10,816 | Form 4 |
| 2026-03-03 | MTZ | Sale | 6,500 @ $300.40 | $2.0M | −27.4% of holding | 17,235 | Form 4 |
| 2025-03-24 | MTZ | Sale | 2,517 @ $131.63 | $331K | −9.9% of holding | 23,000 | Form 4 |
14 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-08-14 | MTZ | Withheld for tax | 34 | 10,934 | Form 4 |
| 2026-08-14 | MTZ | Award / grant | 152 | 10,968 | Form 4 |
| 2026-05-15 | MTZ | Withheld for tax | 23 | 17,316 | Form 4 |
| 2026-05-15 | MTZ | Award / grant | 104 | 17,339 | Form 4 |
| 2026-02-13 | MTZ | Withheld for tax | 37 | 23,735 | Form 4 |
| 2026-02-13 | MTZ | Award / grant | 168 | 23,772 | Form 4 |
| 2025-11-14 | MTZ | Withheld for tax | 52 | 23,604 | Form 4 |
| 2025-11-14 | MTZ | Award / grant | 235 | 23,656 | Form 4 |
| 2025-08-15 | MTZ | Withheld for tax | 56 | 23,421 | Form 4 |
| 2025-08-15 | MTZ | Award / grant | 254 | 23,477 | Form 4 |
| 2025-05-15 | MTZ | Withheld for tax | 64 | 23,223 | Form 4 |
| 2025-05-15 | MTZ | Award / grant | 287 | 23,287 | Form 4 |
| 2025-02-14 | MTZ | Withheld for tax | 74 | 25,517 | Form 4 |
| 2025-02-14 | MTZ | Award / grant | 332 | 25,591 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.