Patrick M. Antkowiak

Insider

First SEC filing: Nov. 25, 2014 · Latest: Nov. 25, 2014

On this page

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

NOC selling May 20, 2019

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 43 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

43 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
May 20, 2019	NOC	S 10b5-1	1,932	$310.00	$598,920	5,208 Direct	-27.06%	Disposed	86.6% (price as of 2026-08-20)
Feb. 28, 2019	NOC	S 10b5-1	1,336	$286.20	$382,363	7,140 Direct	-15.76%	Disposed	102.1% (price as of 2026-08-20)
Feb. 21, 2019	NOC	S 10b5-1	432	$288.38	$124,580	8,476 Direct	-4.85%	Disposed	100.6% (price as of 2026-08-20)
Feb. 19, 2019	NOC	M	1,648	—	—	9,692 Direct	+20.49%	Acquired	(price as of 2026-08-20)
Feb. 19, 2019	NOC	F	784	$287.35	$225,282	8,908 Direct	-8.09%	Disposed	101.3% (price as of 2026-08-20)
Feb. 19, 2019	NOC	M	1,648	—	—	3,273 Direct	-33.49%	Disposed	(price as of 2026-08-20)
Feb. 13, 2019	NOC	M	4,176	—	—	9,546 Direct	+77.77%	Acquired	(price as of 2026-08-20)
Feb. 13, 2019	NOC	F	1,502	—	—	8,044 Direct	-15.73%	Disposed	(price as of 2026-08-20)
Feb. 13, 2019	NOC	A	3,127	—	—	11,797 Direct	+36.07%	Acquired	(price as of 2026-08-20)
Feb. 13, 2019	NOC	M	4,176	—	—	7,621 Direct	-35.40%	Disposed	(price as of 2026-08-20)
Feb. 13, 2019	NOC	A	1,094	—	—	4,921 Direct	+28.59%	Acquired	(price as of 2026-08-20)
Sept. 17, 2018	NOC	S 10b5-1	5,137	$310.00	$1,592,470	5,371 Direct	-48.89%	Disposed	86.6% (price as of 2026-08-20)
Feb. 18, 2018	NOC	M	1,861	—	—	11,385 Direct	+19.54%	Acquired	(price as of 2026-08-20)
Feb. 18, 2018	NOC	F	889	$350.36	$311,470	10,496 Direct	-7.81%	Disposed	65.1% (price as of 2026-08-20)
Feb. 18, 2018	NOC	M	1,861	—	—	3,827 Direct	-32.72%	Disposed	(price as of 2026-08-20)
Feb. 13, 2018	NOC	M	5,919	—	—	12,099 Direct	+95.78%	Acquired	(price as of 2026-08-20)
Feb. 13, 2018	NOC	F	2,563	—	—	9,536 Direct	-21.18%	Disposed	(price as of 2026-08-20)
Feb. 13, 2018	NOC	M	5,919	—	—	8,670 Direct	-40.57%	Disposed	(price as of 2026-08-20)
Feb. 13, 2018	NOC	M	5,919	—	—	12,099 Direct	+95.78%	Acquired	(price as of 2026-08-20)
Feb. 13, 2018	NOC	F	2,575	—	—	9,524 Direct	-21.28%	Disposed	(price as of 2026-08-20)
Feb. 13, 2018	NOC	A	3,962	—	—	14,589 Direct	+37.28%	Acquired	(price as of 2026-08-20)
Feb. 13, 2018	NOC	M	5,919	—	—	8,670 Direct	-40.57%	Disposed	(price as of 2026-08-20)
Feb. 13, 2018	NOC	A	903	—	—	5,689 Direct	+18.87%	Acquired	(price as of 2026-08-20)
Feb. 27, 2017	NOC	S 10b5-1	58	$248.17	$14,394	6,180 Direct	-0.93%	Disposed	133.1% (price as of 2026-08-20)
Feb. 23, 2017	NOC	S 10b5-1	207	$242.11	$50,117	6,238 Direct	-3.21%	Disposed	138.9% (price as of 2026-08-20)
Feb. 21, 2017	NOC	S 10b5-1	4,841	$242.09	$1,171,958	6,445 Direct	-42.89%	Disposed	138.9% (price as of 2026-08-20)
Feb. 19, 2017	NOC	M	892	—	—	4,785 Direct	-15.71%	Disposed	(price as of 2026-08-20)
Feb. 19, 2017	NOC	A	1,276	—	—	5,677 Direct	+28.99%	Acquired	(price as of 2026-08-20)
Feb. 19, 2017	NOC	F	361	$243.58	$87,932	11,286 Direct	-3.10%	Disposed	137.5% (price as of 2026-08-20)
Feb. 19, 2017	NOC	M	892	—	—	11,647 Direct	+8.29%	Acquired	(price as of 2026-08-20)
Feb. 17, 2017	NOC	M	3,184	—	—	10,627 Direct	-23.05%	Disposed	(price as of 2026-08-20)
Feb. 17, 2017	NOC	A	4,153	—	—	13,811 Direct	+43.00%	Acquired	(price as of 2026-08-20)
Feb. 17, 2017	NOC	F	1,168	$243.58	$284,501	10,755 Direct	-9.80%	Disposed	137.5% (price as of 2026-08-20)
Feb. 17, 2017	NOC	M	3,184	—	—	11,923 Direct	+36.43%	Acquired	(price as of 2026-08-20)
March 1, 2016	NOC	S	4,500	$193.82	$872,190	8,739 Direct	-33.99%	Disposed	198.4% (price as of 2026-08-20)
Feb. 20, 2016	NOC	M	1,635	—	—	4,401 Direct	-27.09%	Disposed	(price as of 2026-08-20)
Feb. 20, 2016	NOC	F	791	$190.68	$150,828	13,239 Direct	-5.64%	Disposed	203.3% (price as of 2026-08-20)
Feb. 20, 2016	NOC	M	1,635	—	—	14,030 Direct	+13.19%	Acquired	(price as of 2026-08-20)
Feb. 17, 2016	NOC	A	1,648	—	—	6,036 Direct	+37.56%	Acquired	(price as of 2026-08-20)
Feb. 17, 2016	NOC	M	4,770	—	—	9,658 Direct	-33.06%	Disposed	(price as of 2026-08-20)
Feb. 17, 2016	NOC	A	4,585	—	—	14,428 Direct	+46.58%	Acquired	(price as of 2026-08-20)
Feb. 17, 2016	NOC	F	1,749	$190.06	$332,415	12,395 Direct	-12.37%	Disposed	204.3% (price as of 2026-08-20)
Feb. 17, 2016	NOC	M	4,770	—	—	14,144 Direct	+50.89%	Acquired	(price as of 2026-08-20)
May 26, 2015	NOC	S	4,009	$158.46	$635,266	0 Indirect	-100.00%	Disposed	265.0% (price as of 2026-08-20)
March 5, 2015	NOC	S	2,970	$163.25	$484,852	9,374 Direct	-24.06%	Disposed	254.3% (price as of 2026-08-20)
Feb. 18, 2015	NOC	A	1,861	—	—	4,388 Direct	+73.64%	Acquired	(price as of 2026-08-20)
Feb. 18, 2015	NOC	M	8,447	—	—	9,843 Direct	-46.18%	Disposed	(price as of 2026-08-20)
Feb. 18, 2015	NOC	A	7,876	—	—	18,290 Direct	+75.63%	Acquired	(price as of 2026-08-20)
Feb. 18, 2015	NOC	F	3,723	$167.68	$624,273	12,344 Direct	-23.17%	Disposed	244.9% (price as of 2026-08-20)
Feb. 18, 2015	NOC	M	8,447	—	—	16,067 Direct	+110.85%	Acquired	(price as of 2026-08-20)
Feb. 13, 2015	NOC	M	1,936	—	—	2,527 Direct	-43.38%	Disposed	(price as of 2026-08-20)
Feb. 13, 2015	NOC	F	718	$167.14	$120,007	7,620 Direct	-8.61%	Disposed	246.1% (price as of 2026-08-20)
Feb. 13, 2015	NOC	M	1,936	—	—	8,338 Direct	+30.24%	Acquired	(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
Feb. 19, 2019	NOC	Restricted Stock Rights	Common Stock (1,648)	—	—	1,648	Disposed
Feb. 13, 2019	NOC	Restricted Performance Stock Rights	Common Stock (3,127)	—	—	3,127	Acquired
Feb. 13, 2019	NOC	Restricted Performance Stock Rights	Common Stock (4,176)	—	—	4,176	Disposed
Feb. 13, 2019	NOC	Restricted Stock Rights	Common Stock (1,094)	—	—	1,094	Acquired
Feb. 18, 2018	NOC	Restricted Stock Rights	Common Stock (1,861)	—	—	1,861	Disposed
Feb. 13, 2018	NOC	Restricted Performance Stock Rights	Common Stock (5,919)	—	—	5,919	Disposed
Feb. 13, 2018	NOC	Restricted Performance Stock Rights	Common Stock (3,962)	—	—	3,962	Acquired
Feb. 13, 2018	NOC	Restricted Performance Stock Rights	Common Stock (5,919)	—	—	5,919	Disposed
Feb. 13, 2018	NOC	Restricted Stock Rights	Common Stock (903)	—	—	903	Acquired
Feb. 19, 2017	NOC	Restricted Stock Rights	Common Stock (892)	—	—	892	Disposed
Feb. 19, 2017	NOC	Restricted Stock Rights	Common Stock (1,276)	—	—	1,276	Acquired
Feb. 17, 2017	NOC	Restricted Performance Stock Rights	Common Stock (3,184)	—	—	3,184	Disposed
Feb. 17, 2017	NOC	Restricted Performance Stock Rights	Common Stock (4,153)	—	—	4,153	Acquired
Feb. 20, 2016	NOC	Restricted Stock Rights	Common Stock (1,635)	—	—	1,635	Disposed
Feb. 17, 2016	NOC	Restricted Stock Rights	Common Stock (1,648)	—	—	1,648	Acquired
Feb. 17, 2016	NOC	Restricted Performance Stock Rights	Common Stock (4,770)	—	—	4,770	Disposed
Feb. 17, 2016	NOC	Restricted Performance Stock Rights	Common Stock (4,585)	—	—	4,585	Acquired
Feb. 18, 2015	NOC	Restricted Stock Rights	Common Stock (1,861)	—	—	1,861	Acquired
Feb. 18, 2015	NOC	Restricted Performance Stock Rights	Common Stock (8,447)	—	—	8,447	Disposed
Feb. 18, 2015	NOC	Restricted Performance Stock Rights	Common Stock (7,876)	—	—	7,876	Acquired
Feb. 13, 2015	NOC	Restricted Stock Rights	Common Stock (1,936)	—	—	1,936	Disposed

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

Initial ownership (Form 3) 4 holdings

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

Date	Ticker	Security	Shares	Ownership
Nov. 25, 2014	NOC	Common Stock	6,402	Direct
Nov. 25, 2014	NOC	Common Stock	3,976	Indirect
Nov. 25, 2014	NOC	Restricted Performance Stock Rights→ Common Stock	—	Direct
Nov. 25, 2014	NOC	Restricted Stock Rights→ Common Stock	—	Direct