Issuer positions
3
Reporting Owner Activity for Nicholas M. Grindstaff
Form 3/4/5 issuer positions and transaction evidence for this reporting owner.
Largest position
QUANTA SERVICES, INC.
Disclosed value
$9.12M
Recent activity
Available
- Location
- The Woodlands, TX
- Ownership read
-
Disclosed holdings value
$9,122,096
Parsed Forms 3/4/5 holdings where value can be estimated.
Issuer positions
3
Distinct issuers linked to this reporting owner.
Largest parsed position
QUANTA SERVICES, INC. (PWR)
About $6.88M reported.
Latest ownership filing
05 Jan 2026
Most recent owner-level filing date in the parsed SEC record.
Values come from parsed SEC Forms 3/4/5 and should be verified against the source filing.
- Reporting signature
- Mark D. Wolf (Under a Power of Attorney)
- Source filings
- Open source filing history
Identity
SEC ownership signals
SEC record
SEC evidence
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Reported issuer positions for Nicholas M. Grindstaff
PWR
Forms 3/4/5
QUANTA SERVICES, INC.
- Relationship
- VP - Finance and Treasurer
- Holdings value
- $6,877,114
- Past year net change
- Change %
- Report period
- 10 May 2021
STRL
Forms 3/4/5
STERLING INFRASTRUCTURE, INC.
- Relationship
- Chief Financial Officer (CFO)
- Holdings value
- $2,244,982
- Past year net change
- Change %
- Report period
- 31 Dec 2025
OIG
Forms 3/4/5
Orbital Infrastructure Group, Inc.
- Relationship
- Chief Financial Officer
- Holdings value
- Past year net change
- Change %
- Report period
- 15 Sep 2022
Insider Transactions Reported by Nicholas M. Grindstaff:
| Sym | Company | Class | Transaction | % | Reported value | Reported price | Shares | Shares after | Date | Ownership |
|---|
* indicates a reported price that failed the local validity check.