STRONG-TREISTER DIANE W
Director · CHCO
As of 2026-09-16, STRONG-TREISTER DIANE W has 9 Form 4 transactions on record across 1 company — 5 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 purchases filed in July in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.
Reconstructed holdings
- Direct $589K
- Indirect $0
| CHCO | direct | 4,097 sh | $589K |
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 |
|---|---|---|---|---|---|---|---|
| 2026-07-21 | CHCO | Purchase | 110 @ $134.55 | $15K | +2.8% of holding | 4,097 | Form 4 |
| 2026-04-20 | CHCO | Purchase | 119 @ $126.36 | $15K | +3.1% of holding | 3,987 | Form 4 |
| 2026-03-09 | CHCO | Purchase | 129 @ $115.88 | $15K | +3.4% of holding | 3,871 | Form 4 |
| 2025-10-16 | CHCO | Purchase | 128 @ $117.23 | $15K | +3.8% of holding | 3,477 | Form 4 |
| 2025-07-28 | CHCO | Purchase | 102 @ $127.05 | $13K | +3.1% of holding | 3,349 | Form 4 |
| 2025-05-07 | CHCO | Purchase | 120 @ $116.72 | $14K | +3.8% of holding | 3,247 | Form 4 |
| 2025-03-25 | CHCO | Purchase | 116 @ $119.85 | $14K | +4.2% of holding | 2,861 | Form 4 |
2 award / exercise / gift records — not counted as purchases
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.