Chambers Douglas W
Director · Officer · USM, TDS
As of 2026-09-17, Chambers Douglas W has 59 Form 4 transactions on record across 2 companies — 0 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.
Reconstructed holdings
- Direct $903K
- Indirect $0
| USM | direct | 17,600 sh | $903K |
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 |
|---|---|---|---|---|---|---|---|
| 2025-08-12 | USM | Sale | 93,300 @ $75.77 | $7.1M | −84.1% of holding | 17,600 | Form 4 |
| 2025-08-12 | TDS | Sale | 41,992 @ $38.63 | $1.6M | −100.0% of holding | 0 | Form 4 |
57 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2025-08-12 | TDS | Option exercise | 11,601 | 41,978 | Form 4 |
| 2025-08-12 | TDS | Option exercise | 11,601 | 0 | Form 4 |
| 2025-08-12 | TDS | Option exercise | 10,592 | 0 | Form 4 |
| 2025-08-12 | TDS | Option exercise | 10,592 | 30,377 | Form 4 |
| 2025-08-12 | TDS | Option exercise | 6,634 | 19,785 | Form 4 |
| 2025-08-12 | TDS | Option exercise | 6,634 | 0 | Form 4 |
| 2025-08-01 | USM | Disposition | 67,005 | 110,900 | Form 4 |
| 2025-08-01 | USM | Withheld for tax | 19,333 | 110,900 | Form 4 |
| 2025-08-01 | USM | Withheld for tax | 5,416 | 89,101 | Form 4 |
| 2025-08-01 | USM | Option exercise | 41,132 | 0 | Form 4 |
| 2025-08-01 | USM | Option exercise | 11,522 | 94,517 | Form 4 |
| 2025-08-01 | USM | Option exercise | 11,484 | 0 | Form 4 |
| 2025-08-01 | USM | Option exercise | 41,132 | 130,233 | Form 4 |
| 2025-08-01 | USM | Option exercise | 67,005 | 177,905 | Form 4 |
| 2025-08-01 | USM | Option exercise | 11,522 | 0 | Form 4 |
| 2025-08-01 | USM | Option exercise | 30,225 | 0 | Form 4 |
| 2025-08-01 | USM | Option exercise | 13,812 | 0 | Form 4 |
| 2025-08-01 | USM | Award / grant | 2,871 | 11,484 | Form 4 |
| 2025-08-01 | USM | Option exercise | 11,484 | 0 | Form 4 |
| 2025-08-01 | USM | Option exercise | 30,225 | 0 | Form 4 |
| 2025-08-01 | USM | Option exercise | 13,812 | 0 | Form 4 |
| 2025-08-01 | USM | Award / grant | 2,871 | 11,484 | Form 4 |
| 2025-08-01 | USM | Option exercise | 11,484 | 0 | Form 4 |
| 2025-08-01 | USM | Option exercise | 11,484 | 0 | Form 4 |
| 2025-08-01 | USM | Option exercise | 11,522 | 94,517 | Form 4 |
| 2025-08-01 | USM | Option exercise | 41,132 | 130,233 | Form 4 |
| 2025-08-01 | USM | Option exercise | 67,005 | 177,905 | Form 4 |
| 2025-08-01 | USM | Option exercise | 11,522 | 0 | Form 4 |
| 2025-08-01 | USM | Option exercise | 41,132 | 0 | Form 4 |
| 2025-04-04 | USM | Withheld for tax | 10,523 | 72,198 | Form 4 |
| 2025-04-04 | USM | Withheld for tax | 9,577 | 82,995 | Form 4 |
| 2025-04-04 | USM | Option exercise | 20,374 | 0 | Form 4 |
| 2025-04-04 | USM | Option exercise | 22,389 | 0 | Form 4 |
| 2025-04-04 | USM | Option exercise | 20,374 | 0 | Form 4 |
| 2025-04-04 | USM | Option exercise | 22,389 | 82,721 | Form 4 |
| 2025-04-04 | USM | Option exercise | 20,374 | 92,572 | Form 4 |
| 2025-04-04 | USM | Option exercise | 22,389 | 82,721 | Form 4 |
| 2025-04-04 | USM | Option exercise | 20,374 | 92,572 | Form 4 |
| 2025-04-04 | USM | Option exercise | 22,389 | 0 | Form 4 |
| 2025-04-03 | USM | Withheld for tax | 4,953 | 60,332 | 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.