Nicholas M Grindstaff Net Worth - Insider Trades and Bio as of Jun 30, 2026

STRLSTERLING INFRASTRUCTURE, INC.SEC CIK: 0001134710

Estimated Net Worth

$31.6 Million0.0%vs Last Year

Last Updated: May 19, 2026 11:08 PM EST

Transaction Summary

Total Transactions52

Buy-Sell Ratio0.00

Buy Transactions0

Sell Transactions6

Transaction Volume

Total Volume-$2.96M

Net Volume$2.96M

Buy Volume$0.00

Sell Volume-$2.96M

Trade Analysis

AVG Trade Size-$78.58K

Largest Trade$0.00

Most Active MonthMar

Most Active Year2021

Trading Sentiment

OverallBullish

Recent TradeNeutral

Last 90 Days0 Trades

ConvictionNone

Net Worth & Trading Activity Over Time

Monthly Trading Pattern

Past Insider Trading and Trends

Nicholas M Grindstaff has an estimated net worth of $31.6 Million. This is based on reported shares across multiple companies, which include Orbital Infrastructure Group, Inc., QUANTA SERVICES, INC., and STERLING INFRASTRUCTURE, INC..

2014 was Nicholas M Grindstaff's most active year for acquiring shares with 3 total transactions. Nicholas M Grindstaff's most active month to acquire stocks was the month of February. 2007 was Nicholas M Grindstaff's most active year for disposing of shares, totalling 9 transactions. Nicholas M Grindstaff's most active month to dispose stocks was the month of January. 2022 saw Nicholas M Grindstaff paying a total of $0.00 for 654,106 shares, this is the most they've acquired in one year. In 2017 Nicholas M Grindstaff cashed out on 27,823 shares for a total of $1,062,199.53, their largest year based on trade value.

Holdings & Transactions

STRLsterling infrastructure, inc.

Chief Financial Officer (CFO) Officer

Updated: Jan 05, 2026VIEW QUOTE

Form Type	Δ Own, %	Traded Shares	Price	Size, $	Filing Date	Own, %	Type	Scheduled	Trade Dates	SEC Filing
From 4	0.17	968.00	$306.23	-$18.68K	Jan 05, 2026	6.59K	Grant	—	Dec 31 - 01	View
From 4	—	5.56K	—	—	Jul 10, 2025	5.56K	Grant	—	Jul 10	View
From 3	—	—	—	—	Jul 10, 2025	—	—	—	—	View

OIGBQorbital infrastructure group, inc.

Chief Financial Officer Officer

Updated: Oct 17, 2022VIEW QUOTE

Form Type	Δ Own, %	Traded Shares	Price	Size, $	Filing Date	Own, %	Type	Scheduled	Trade Dates	SEC Filing
From 4	4.61	654.11K	—	—	Oct 17, 2022	796.05K	Grant	—	Sep 15	View
From 3	—	—	—	—	Nov 23, 2021	8.00K	—	—	—	View

PWRquanta services, inc.

VP - Finance and Treasurer Officer

Updated: May 12, 2021VIEW QUOTE

Form Type	Δ Own, %	Traded Shares	Price	Size, $	Filing Date	Own, %	Type	Scheduled	Trade Dates	SEC Filing
From 4	-0.21	8.45K	$101.22	-$855.71K	May 12, 2021	31.87K	Sale	—	May 10	View
From 4	0.02	909.00	$83.48	-$40.99K	Mar 29, 2021	40.32K	Grant	—	Mar 25 - 26	View
From 4	0.10	3.65K	$84.21	-$179.03K	Mar 05, 2021	39.41K	Grant	—	Mar 03	View
From 4	-0.01	399.00	$83.85	-$33.46K	Mar 02, 2021	35.77K	Tax	—	Feb 28	View
From 4	-0.07	2.62K	$72.02	-$188.98K	Jan 05, 2021	36.17K	Tax	—	Jan 01	View
From 4	-0.18	8.26K	$64.53	-$532.76K	Nov 04, 2020	38.79K	Sale	—	Nov 02	View
From 4	0.09	3.74K	—	—	Mar 30, 2020	47.05K	Grant	—	Mar 26	View
From 4	0.09	3.69K	$38.56	-$67.60K	Mar 06, 2020	43.30K	Grant	—	Mar 04	View
From 4	-0.01	470.00	$39.42	-$18.53K	Mar 03, 2020	39.61K	Tax	—	Feb 28	View
From 4	-0.04	1.77K	$40.71	-$72.18K	Jan 03, 2020	40.08K	Tax	—	Jan 01	View
From 4	0.07	2.86K	—	—	Mar 11, 2019	41.85K	Grant	—	Mar 08	View
From 4	0.20	6.61K	$35.97	-$12.88K	Mar 04, 2019	38.99K	Grant	—	Feb 28	View
From 4	0.23	6.11K	$35.04	-$9.08K	Mar 02, 2018	32.38K	Grant	—	Feb 28	View
From 4	0.12	2.72K	—	—	Mar 24, 2017	26.27K	Grant	—	Mar 22	View
From 4	-0.00	109.00	$38.13	-$4.16K	Mar 02, 2017	23.55K	Tax	—	Feb 28	View
From 4	-0.53	27.00K	$38.20	-$1.03M	Mar 01, 2017	23.66K	Sale	—	Feb 27	View
From 4	0.03	1.47K	$37.24	-$26.59K	Feb 22, 2017	50.66K	Grant	—	Feb 20	View
From 4	0.10	4.52K	—	—	Apr 01, 2016	49.19K	Grant	—	Mar 30	View
From 4	-0.03	1.18K	$20.21	-$23.91K	Mar 01, 2016	44.67K	Tax	—	Feb 28	View
From 4	0.08	3.48K	—	—	Mar 18, 2015	45.85K	Grant	—	Mar 16	View
From 4	-0.04	1.55K	$28.78	-$44.61K	Mar 03, 2015	42.37K	Tax	—	Feb 28	View
From 4	-0.01	319.00	$36.10	-$11.52K	Mar 28, 2014	43.92K	Tax	—	Mar 28	View
From 4	0.33	11.01K	—	—	Mar 14, 2014	44.24K	Grant	—	Mar 12	View
From 4	-0.04	1.46K	$35.01	-$51.15K	Mar 03, 2014	33.23K	Tax	—	Feb 28	View
From 4	0.25	7.03K	—	—	Mar 08, 2013	34.69K	Grant	—	Mar 08	View
From 4	-0.04	1.16K	$28.04	-$32.47K	Mar 01, 2013	27.67K	Tax	—	Feb 28	View
From 4	-0.22	8.00K	$27.13	-$217.03K	Dec 26, 2012	28.82K	Sale	—	Dec 24	View
From 4	0.14	4.60K	—	—	Mar 13, 2012	36.82K	Grant	—	Mar 09	View
From 4	-0.03	1.08K	$21.34	-$23.05K	Mar 01, 2012	32.22K	Tax	—	Feb 28	View
From 4	0.11	3.37K	—	—	Mar 11, 2011	33.30K	Grant	—	Mar 11	View
From 4	-0.03	1.08K	$22.28	-$24.08K	Mar 02, 2011	29.93K	Tax	—	Feb 28	View
From 4	0.12	3.34K	—	—	Mar 15, 2010	31.01K	Grant	—	Mar 12	View
From 4	-0.04	1.23K	$19.00	-$23.45K	Mar 02, 2010	27.67K	Tax	—	Feb 28	View
From 4	0.16	3.96K	—	—	Mar 16, 2009	28.90K	Grant	—	Mar 13	View
From 4	-0.06	1.58K	$17.60	-$27.83K	Mar 03, 2009	24.94K	Tax	—	Feb 28	View
From 4	0.15	3.42K	—	—	Mar 14, 2008	26.52K	Grant	—	Mar 13	View
From 4	-0.08	1.91K	$25.23	-$48.19K	Feb 29, 2008	23.10K	Tax	—	Feb 28	View
From 4	-0.29	10.00K	$28.86	-$288.57K	May 11, 2007	25.01K	Sale	—	May 10	View
From 4	0.13	3.93K	—	—	Mar 23, 2007	35.01K	Grant	—	Mar 22	View
From 4	-0.07	2.29K	$22.68	-$51.87K	Mar 02, 2007	31.07K	Tax	—	Feb 28	View
From 4	-0.06	2.27K	$17.37	-$39.40K	Aug 23, 2006	33.36K	Sale	—	Aug 22	View
From 4	0.27	7.55K	—	—	Mar 13, 2006	35.63K	Grant	—	Mar 10	View
From 4	-0.11	3.34K	$13.81	-$46.07K	Mar 02, 2006	28.07K	Tax	—	Feb 28	View
From 4	0.35	8.17K	—	—	Mar 17, 2005	31.41K	Grant	—	Mar 15	View
From 4	-0.12	3.03K	$8.00	-$24.26K	Mar 02, 2005	23.24K	Tax	—	Mar 01	View
From 4	0.44	8.09K	—	—	Mar 19, 2004	26.27K	Grant	—	Mar 17	View
From 4	-0.10	1.94K	$8.60	-$16.72K	Mar 04, 2004	18.18K	Tax	—	Mar 02	View

Benzinga

Benzinga

Net Worth & Trading Activity Over Time

Monthly Trading Pattern

Past Insider Trading and Trends

Holdings & Transactions