Stephanie Cox

Insider

First SEC filing: July 15, 2025 · Latest: July 15, 2025

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Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Derivatives Options and other derivative holdings reported by this person.
Initial holdings The stakes this person held when they first started reporting.

Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 52 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

52 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
July 10, 2026	LNT	A	524	$76.40	$40,034	17,907 Direct	+3.01%	Acquired	-7.8% (price as of 2026-08-20)
July 11, 2025	LNT	A	1,168	$62.08	$72,509	14,663 Direct	+8.66%	Acquired	13.5% (price as of 2026-08-20)
April 11, 2025	LNT	A	1,197	$60.59	$72,526	13,385 Direct	+9.82%	Acquired	16.3% (price as of 2026-08-20)
Jan. 10, 2025	LNT	A	1,280	$56.66	$72,525	12,089 Direct	+11.84%	Acquired	24.3% (price as of 2026-08-20)
Oct. 11, 2024	LNT	A	1,173	$59.67	$69,993	10,725 Direct	+12.28%	Acquired	18.1% (price as of 2026-08-20)
July 12, 2024	LNT	A	1,299	$53.87	$69,977	9,472 Direct	+15.89%	Acquired	30.8% (price as of 2026-08-20)
April 12, 2024	LNT	A	1,458	$48.00	$69,984	8,098 Direct	+21.96%	Acquired	46.8% (price as of 2026-08-20)
Jan. 12, 2024	LNT	A	1,389	$50.38	$69,978	6,574 Direct	+26.79%	Acquired	39.8% (price as of 2026-08-20)
Oct. 13, 2023	LNT	A	1,357	$49.75	$67,511	5,138 Direct	+35.89%	Acquired	41.6% (price as of 2026-08-20)
July 11, 2023	LNT	A	1,275	$52.95	$67,511	3,747 Direct	+51.58%	Acquired	33.1% (price as of 2026-08-20)
April 11, 2023	LNT	A	2,452	$55.06	$135,007	2,452 Direct	—	Acquired	28.0% (price as of 2026-08-20)
July 25, 2019	SLB	S	24,057	$40.59	$976,474	46,354 Direct	-34.17%	Disposed	33.3% (price as of 2026-08-20)
July 20, 2019	SLB	M	10,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
July 20, 2019	SLB	F	3,935	$38.32	$150,789	70,411 Direct	-5.29%	Disposed	41.2% (price as of 2026-08-20)
July 20, 2019	SLB	M	10,000	—	—	74,346 Direct	+15.54%	Acquired	(price as of 2026-08-20)
April 17, 2019	SLB	M	49,141	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
April 17, 2019	SLB	F	48,277	$47.25	$2,281,088	64,004 Direct	-43.00%	Disposed	14.6% (price as of 2026-08-20)
April 17, 2019	SLB	M	49,141	$45.88	$2,254,589	112,281 Direct	+77.83%	Acquired	18.0% (price as of 2026-08-20)
Jan. 18, 2019	SLB	F	16,010	$43.97	$703,960	63,140 Direct	-20.23%	Disposed	23.1% (price as of 2026-08-20)
Jan. 18, 2019	SLB	F	9,117	$43.97	$400,874	70,033 Direct	-11.52%	Disposed	23.1% (price as of 2026-08-20)
Jan. 18, 2019	SLB	A	41,000	—	—	79,150 Direct	+107.47%	Acquired	(price as of 2026-08-20)
Jan. 14, 2019	SLB	M	5,602	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Jan. 14, 2019	SLB	M	2,398	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Jan. 14, 2019	SLB	F	7,477	$41.24	$308,351	38,191 Direct	-16.37%	Disposed	31.2% (price as of 2026-08-20)
Jan. 14, 2019	SLB	M	5,602	$37.84	$211,980	45,668 Direct	+13.98%	Acquired	43.0% (price as of 2026-08-20)
Jan. 14, 2019	SLB	M	2,398	$37.84	$90,740	40,066 Direct	+6.37%	Acquired	43.0% (price as of 2026-08-20)
Oct. 18, 2017	SLB	A	20,000	—	—	20,000 Direct	—	Acquired	(price as of 2026-08-20)
July 17, 2017	SLB	M	10,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
July 17, 2017	SLB	M	10,000	—	—	37,111 Direct	+36.89%	Acquired	(price as of 2026-08-20)
April 25, 2014	SLB	S	19,522	$101.44	$1,980,312	16,404 Direct	-54.34%	Disposed	-46.6% (price as of 2026-08-20)
Jan. 17, 2014	SLB	A	9,324	—	—	35,926 Direct	+35.05%	Acquired	(price as of 2026-08-20)
Jan. 16, 2014	SLB	A	1,126	—	—	1,126 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 16, 2014	SLB	A	33,874	—	—	33,874 Direct	—	Acquired	(price as of 2026-08-20)
May 29, 2013	SLB	M	256	$23.01	$5,891	22,636 Direct	+1.14%	Acquired	135.2% (price as of 2026-08-20)
May 29, 2013	SLB	M	2,199	$23.01	$50,599	24,835 Direct	+9.71%	Acquired	135.2% (price as of 2026-08-20)
May 29, 2013	SLB	M	1,419	$32.62	$46,288	26,254 Direct	+5.71%	Acquired	65.9% (price as of 2026-08-20)
May 29, 2013	SLB	M	256	—	—	214 Direct	-54.47%	Disposed	(price as of 2026-08-20)
May 29, 2013	SLB	M	2,199	—	—	1,831 Direct	-54.57%	Disposed	(price as of 2026-08-20)
May 29, 2013	SLB	M	1,419	—	—	81 Direct	-94.60%	Disposed	(price as of 2026-08-20)
Jan. 17, 2013	SLB	A	1,365	—	—	1,365 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 17, 2013	SLB	A	40,635	—	—	40,635 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 17, 2013	SLB	A	7,400	—	—	7,400 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 17, 2013	SLB	A	7,400	—	—	7,400 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 17, 2013	SLB	A	14,800	—	—	14,800 Direct	—	Acquired	(price as of 2026-08-20)
March 30, 2012	SLB	M	4,102	$27.87	$114,323	22,012 Direct	+22.90%	Acquired	94.2% (price as of 2026-08-20)
March 30, 2012	SLB	M	4,102	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Jan. 19, 2012	SLB	A	68,614	—	—	68,614 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 19, 2012	SLB	A	1,386	—	—	1,386 Direct	—	Acquired	(price as of 2026-08-20)
Sept. 26, 2011	SLB	P	200	$62.03	$12,406	17,016 Direct	+1.19%	Acquired	-12.7% (price as of 2026-08-20)
Sept. 26, 2011	SLB	P	100	$62.05	$6,205	17,116 Direct	+0.59%	Acquired	-12.8% (price as of 2026-08-20)
Sept. 26, 2011	SLB	P	450	$62.06	$27,927	17,566 Direct	+2.63%	Acquired	-12.8% (price as of 2026-08-20)
Sept. 26, 2011	SLB	P	200	$62.10	$12,420	17,766 Direct	+1.14%	Acquired	-12.8% (price as of 2026-08-20)
March 30, 2011	SLB	M	5,720	$31.19	$178,407	18,595 Direct	+44.43%	Acquired	73.5% (price as of 2026-08-20)
March 30, 2011	SLB	S	1,927	$92.93	$179,076	16,668 Direct	-10.36%	Disposed	-41.8% (price as of 2026-08-20)
March 30, 2011	SLB	M	5,720	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Jan. 20, 2011	SLB	A	1,192	—	—	1,192 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 20, 2011	SLB	A	48,808	—	—	48,808 Direct	—	Acquired	(price as of 2026-08-20)
Dec. 20, 2010	SLB	M	4,000	$31.19	$124,760	14,168 Direct	+39.34%	Acquired	73.5% (price as of 2026-08-20)
Dec. 20, 2010	SLB	S	1,521	$82.29	$125,163	12,647 Direct	-10.74%	Disposed	-34.2% (price as of 2026-08-20)
Dec. 20, 2010	SLB	M	4,000	—	—	5,720 Direct	-41.15%	Disposed	(price as of 2026-08-20)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II)

Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
July 10, 2026	LNT	Deferred Common Stock Units	Common Stock (524)	$0.00	—	524	Acquired
July 11, 2025	LNT	Deferred Common Stock Units	Common Stock (1,168)	$0.00	—	1,168	Acquired
April 11, 2025	LNT	Deferred Common Stock Units	Common Stock (1,197)	$0.00	—	1,197	Acquired
Jan. 10, 2025	LNT	Deferred Common Stock Units	Common Stock (1,280)	$0.00	—	1,280	Acquired
Oct. 11, 2024	LNT	Deferred Common Stock Units	Common Stock (1,173)	$0.00	—	1,173	Acquired
July 12, 2024	LNT	Deferred Common Stock Units	Common Stock (1,299)	$0.00	—	1,299	Acquired
April 12, 2024	LNT	Deferred Common Stock Units	Common Stock (1,458)	$0.00	—	1,458	Acquired
Jan. 12, 2024	LNT	Deferred Common Stock Units	Common Stock (1,389)	$0.00	—	1,389	Acquired
Oct. 13, 2023	LNT	Deferred Common Stock Units	Common Stock (1,357)	$0.00	—	1,357	Acquired
July 11, 2023	LNT	Deferred Common Stock Units	Common Stock (1,275)	$0.00	—	1,275	Acquired
April 11, 2023	LNT	Deferred Common Stock Units	Common Stock (2,452)	$0.00	—	2,452	Acquired
July 20, 2019	SLB	RSU (Restricted Stock Unit)	Common Stock, $0.01 Par Value Per Share (10,000)	—	—	10,000	Disposed
April 17, 2019	SLB	Non-Qualified Stock Option (Right to Buy)	Common Stock, $0.01 Par Value Per Share (49,141)	$45.88	April 23, 2019	49,141	Disposed
Jan. 14, 2019	SLB	Non-Qualified Stock Option (Right to Buy)	Common Stock, $0.01 Par Value Per Share (5,602)	$37.84	Jan. 22, 2019	5,602	Disposed
Jan. 14, 2019	SLB	Incentive Stock Option (Right to Buy)	Common Stock, $0.01 Par Value Per Share (2,398)	$37.84	Jan. 22, 2019	2,398	Disposed
Oct. 18, 2017	SLB	RSU (Restricted Stock Unit)	Common Stock, $0.01 Par Value Per Share (20,000)	$0.00	—	20,000	Acquired
July 17, 2017	SLB	RSU (Restricted Stock Unit)	Common Stock, $0.01 Par Value Per Share (10,000)	—	—	10,000	Disposed
Jan. 16, 2014	SLB	Incentive Stock Option (right to buy)	Common Stock, $0.01 par value per share (1,126)	$88.76	Jan. 16, 2024	1,126	Acquired
Jan. 16, 2014	SLB	NQ Stock Option (right to buy)w/tandem tax w/h right	Common Stock, $0.01 par value per share (33,874)	$88.76	Jan. 16, 2024	33,874	Acquired
May 29, 2013	SLB	Incentive Stock Option (right to buy)	Common Stock, $0.01 par value per share (256)	$23.01	July 16, 2013	256	Disposed
May 29, 2013	SLB	NQ Stock Option (right to buy) w/ tandem Tax w/h right	Common Stock, $0.01 par value per share (2,199)	$23.01	July 16, 2013	2,199	Disposed
May 29, 2013	SLB	NQ Stock Option (right to buy) w/ tandem Tax w/h right	Common Stock, $0.01 par value per share (1,419)	$32.62	July 21, 2014	1,419	Disposed
Jan. 17, 2013	SLB	Incentive Stock Option (right to buy)	Common Stock, $0.01 par value per share (1,365)	$73.25	Jan. 17, 2023	1,365	Acquired
Jan. 17, 2013	SLB	NQ Stock Option (right to buy) w/tandem Tax w/h right	Common Stock, $0.01 par value per share (40,635)	$73.25	Jan. 17, 2023	40,635	Acquired
Jan. 17, 2013	SLB	Performance Share Unit (PSU)	Common Stock, $0.01 par value per share (7,400)	$0.00	—	7,400	Acquired
Jan. 17, 2013	SLB	Performance Share Unit (PSU)	Common Stock, $0.01 par value per share (7,400)	$0.00	—	7,400	Acquired
Jan. 17, 2013	SLB	Performance Share Unit (PSU)	Common Stock, $0.01 par value per share (14,800)	$0.00	—	14,800	Acquired
March 30, 2012	SLB	Incentive Stock Option (right to buy)	Common Stock, $0.01 par value per share (4,102)	$27.87	April 17, 2012	4,102	Disposed
Jan. 19, 2012	SLB	NQ Stock Option (right to buy) w/ tandem Tax w/h right	Common Stock, $0.01 par value per share (68,614)	$72.11	Jan. 19, 2022	68,614	Acquired
Jan. 19, 2012	SLB	Incentive Stock Option (right to buy)	Common Stock, $0.01 par value per share (1,386)	$72.11	Jan. 19, 2022	1,386	Acquired
March 30, 2011	SLB	Incentive Stock Option (right to buy)	Common Stock, $0.01 par value per share (5,720)	$31.19	April 18, 2011	5,720	Disposed
Jan. 20, 2011	SLB	Incentive Stock Option (right to buy)	Common Stock, $0.01 par value per share (1,192)	$83.88	Jan. 20, 2021	1,192	Acquired
Jan. 20, 2011	SLB	NQ Stock Option (right to buy) w/ tandem Tax w/h right	Common Stock, $0.01 par value per share (48,808)	$83.88	Jan. 20, 2021	48,808	Acquired
Dec. 20, 2010	SLB	Incentive Stock Option (right to buy)	Common Stock, $0.01 par value per share (9,720)	$31.19	April 18, 2011	4,000	Disposed

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 45 holdings

Securities held when first becoming an insider, per SEC Form 3.

Date	Ticker	Security	Shares	Ownership
Feb. 14, 2023	LNT	Common Stock	500	Direct
June 13, 2017	SLB	Common Stock, $0.01 Par Value Per Share	2,711	Direct
June 13, 2017	SLB	Incentive Stock Option (Right to Buy)→ Common Stock, $0.01 Par Value Per Share (2,399)	2,399	Direct
June 13, 2017	SLB	Incentive Stock Option (Right to Buy)→ Common Stock, $0.01 Par Value Per Share (2,398)	2,398	Direct
June 13, 2017	SLB	Incentive Stock Option (Right to Buy)→ Common Stock, $0.01 Par Value Per Share (859)	859	Direct
June 13, 2017	SLB	Incentive Stock Option (Right to Buy)→ Common Stock, $0.01 Par Value Per Share (1,459)	1,459	Direct
June 13, 2017	SLB	Incentive Stock Option (Right to Buy)→ Common Stock, $0.01 Par Value Per Share (1,192)	1,192	Direct
June 13, 2017	SLB	Incentive Stock Option (Right to Buy)→ Common Stock, $0.01 Par Value Per Share (1,386)	1,386	Direct
June 13, 2017	SLB	Incentive Stock Option (Right to Buy)→ Common Stock, $0.01 Par Value Per Share (1,126)	1,126	Direct
June 13, 2017	SLB	Incentive Stock Option (Right to Buy)→ Common Stock, $0.01 Par Value Per Share (1,090)	1,090	Direct
June 13, 2017	SLB	Incentive Stock Option (Right to Buy)→ Common Stock, $0.01 Par Value Per Share (1,241)	1,241	Direct
June 13, 2017	SLB	Incentive Stock Option (Right to Buy)→ Common Stock, $0.01 Par Value Per Share (1,144)	1,144	Direct
June 13, 2017	SLB	Non-Qualified Stock Option (Right to Buy)→ Common Stock, $0.01 Par Value Per Share (2,601)	2,601	Direct
June 13, 2017	SLB	Non-Qualified Stock Option (Right to Buy)→ Common Stock, $0.01 Par Value Per Share (5,602)	5,602	Direct
June 13, 2017	SLB	Non-Qualified Stock Option (Right to Buy)→ Common Stock, $0.01 Par Value Per Share (49,141)	49,141	Direct
June 13, 2017	SLB	Non-Qualified Stock Option (Right to Buy)→ Common Stock, $0.01 Par Value Per Share (43,541)	43,541	Direct
June 13, 2017	SLB	Non-Qualified Stock Option (Right to Buy)→ Common Stock, $0.01 Par Value Per Share (48,808)	48,808	Direct
June 13, 2017	SLB	Non-Qualified Stock Option (Right to Buy)→ Common Stock, $0.01 Par Value Per Share (68,614)	68,614	Direct
June 13, 2017	SLB	Non-Qualified Stock Option (Right to Buy)→ Common Stock, $0.01 Par Value Per Share (40,635)	40,635	Direct
June 13, 2017	SLB	Non-Qualified Stock Option (Right to Buy)→ Common Stock, $0.01 Par Value Per Share (33,874)	33,874	Direct
June 13, 2017	SLB	Non-Qualified Stock Option (Right to Buy)→ Common Stock, $0.01 Par Value Per Share (22,910)	22,910	Direct
June 13, 2017	SLB	Non-Qualified Stock Option (Right to Buy)→ Common Stock, $0.01 Par Value Per Share (28,759)	28,759	Direct
June 13, 2017	SLB	Non-Qualified Stock Option (Right to Buy)→ Common Stock, $0.01 Par Value Per Share (13,856)	13,856	Direct
June 13, 2017	SLB	RSU (Restricted Stock Unit)→ Common Stock, $0.01 Par Value Per Share (10,000)	10,000	Direct
June 13, 2017	SLB	RSU (Restricted Stock Unit)→ Common Stock, $0.01 Par Value Per Share (10,000)	10,000	Direct
June 13, 2017	SLB	RSU (Restricted Stock Unit)→ Common Stock, $0.01 Par Value Per Share (3,800)	3,800	Direct
June 13, 2017	SLB	Incentive Stock Option (Right to Buy)→ Common Stock, $0.01 Par Value Per Share (1,365)	1,365	Direct
May 7, 2009	SLB	Common Stock	5,472	Direct
May 7, 2009	SLB	Employee Stock Option (right to buy) w/ tandem Tx w/h right→ Common Stock (4,030)	4,030	Direct
May 7, 2009	SLB	Employee Stock Option (right to buy) w/ tandem Tx w/h right→ Common Stock (1,500)	1,500	Direct
May 7, 2009	SLB	Employee Stock Option (right to buy) w/ tandem Tx w/h right→ Common Stock (5,602)	5,602	Direct
May 7, 2009	SLB	Employee Stock Option (right to buy) w/ tandem Tx w/h right→ Common Stock (49,141)	49,141	Direct
May 7, 2009	SLB	Employee Stock Option (right to buy) w/ tandem Tx w/h right→ Common Stock (3,510)	3,510	Direct
May 7, 2009	SLB	Employee Stock Option (right to buy) w/ tandem Tx w/h right→ Common Stock (3,718)	3,718	Direct
May 7, 2009	SLB	Employee Stock Option (right to buy) w/ tandem Tx w/h right→ Common Stock (2,601)	2,601	Direct
May 7, 2009	SLB	Incentive Stock Option (right to buy)→ Common Stock (470)	470	Direct
May 7, 2009	SLB	Incentive Stock Option (right to buy)→ Common Stock (4,102)	4,102	Direct
May 7, 2009	SLB	Incentive Stock Option (right to buy)→ Common Stock (9,720)	9,720	Direct
May 7, 2009	SLB	Incentive Stock Option (right to buy)→ Common Stock (3,000)	3,000	Direct
May 7, 2009	SLB	Incentive Stock Option (right to buy)→ Common Stock (4,000)	4,000	Direct
May 7, 2009	SLB	Incentive Stock Option (right to buy)→ Common Stock (2,398)	2,398	Direct
May 7, 2009	SLB	Incentive Stock Option (right to buy)→ Common Stock (859)	859	Direct
May 7, 2009	SLB	Incentive Stock Option (right to buy)→ Common Stock (2,490)	2,490	Direct
May 7, 2009	SLB	Incentive Stock Option (right to buy)→ Common Stock (1,282)	1,282	Direct
May 7, 2009	SLB	Incentive Stock Option (right to buy)→ Common Stock (2,399)	2,399	Direct