Mark J Airola

Insider

First SEC filing: Aug. 15, 2018 · Latest: Aug. 15, 2018

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.
Compensation Executive pay disclosed in company proxy statements.

Insider at

NPKI selling May 1, 2018

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 82 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

82 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Aug. 14, 2018	NPKI	M	26,998	—	—	46,231 Direct	-36.87%	Disposed	(price as of 2026-08-20)
Aug. 14, 2018	NPKI	F	10,623	$10.40	$110,479	387,868 Direct	-2.67%	Disposed	33.4% (price as of 2026-08-20)
Aug. 14, 2018	NPKI	M	26,998	—	—	398,491 Direct	+7.27%	Acquired	(price as of 2026-08-20)
June 1, 2018	NPKI	M	24,602	—	—	55,862 Direct	-30.58%	Disposed	(price as of 2026-08-20)
June 1, 2018	NPKI	M	15,631	—	—	80,464 Direct	-16.27%	Disposed	(price as of 2026-08-20)
June 1, 2018	NPKI	M	13,412	—	—	96,095 Direct	-12.25%	Disposed	(price as of 2026-08-20)
June 1, 2018	NPKI	F	9,680	$10.85	$105,028	371,493 Direct	-2.54%	Disposed	27.8% (price as of 2026-08-20)
June 1, 2018	NPKI	M	24,602	—	—	381,173 Direct	+6.90%	Acquired	(price as of 2026-08-20)
June 1, 2018	NPKI	F	6,150	$10.85	$66,728	356,571 Direct	-1.70%	Disposed	27.8% (price as of 2026-08-20)
June 1, 2018	NPKI	M	15,631	—	—	362,721 Direct	+4.50%	Acquired	(price as of 2026-08-20)
June 1, 2018	NPKI	F	5,277	$10.85	$57,255	347,090 Direct	-1.50%	Disposed	27.8% (price as of 2026-08-20)
June 1, 2018	NPKI	M	13,412	—	—	352,367 Direct	+3.96%	Acquired	(price as of 2026-08-20)
May 1, 2018	NPKI	M	127,250	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 1, 2018	NPKI	S	127,250	$10.34	$1,315,765	338,955 Direct	-27.29%	Disposed	34.1% (price as of 2026-08-20)
May 1, 2018	NPKI	M	127,250	$3.31	$421,198	466,205 Direct	+37.54%	Acquired	319.0% (price as of 2026-08-20)
Aug. 16, 2017	NPKI	M	21,856	—	—	73,229 Direct	-22.99%	Disposed	(price as of 2026-08-20)
Aug. 16, 2017	NPKI	F	5,977	$7.50	$44,828	338,955 Direct	-1.73%	Disposed	84.9% (price as of 2026-08-20)
Aug. 16, 2017	NPKI	M	21,856	—	—	344,932 Direct	+6.76%	Acquired	(price as of 2026-08-20)
June 1, 2017	NPKI	M	24,602	—	—	109,507 Direct	-18.34%	Disposed	(price as of 2026-08-20)
June 1, 2017	NPKI	M	13,412	—	—	134,109 Direct	-9.09%	Disposed	(price as of 2026-08-20)
June 1, 2017	NPKI	F	6,728	$7.54	$50,729	323,076 Direct	-2.04%	Disposed	84.0% (price as of 2026-08-20)
June 1, 2017	NPKI	M	24,602	—	—	329,804 Direct	+8.06%	Acquired	(price as of 2026-08-20)
June 1, 2017	NPKI	F	3,668	$7.54	$27,657	305,202 Direct	-1.19%	Disposed	84.0% (price as of 2026-08-20)
June 1, 2017	NPKI	M	13,412	—	—	308,870 Direct	+4.54%	Acquired	(price as of 2026-08-20)
June 1, 2017	NPKI	F	3,162	$7.54	$23,841	295,458 Direct	-1.06%	Disposed	84.0% (price as of 2026-08-20)
May 18, 2017	NPKI	A	46,891	—	—	147,521 Direct	+46.60%	Acquired	(price as of 2026-08-20)
Aug. 10, 2016	NPKI	M	19,392	—	—	95,085 Direct	-16.94%	Disposed	(price as of 2026-08-20)
Aug. 10, 2016	NPKI	F	2,435	$6.72	$16,363	298,620 Direct	-0.81%	Disposed	106.4% (price as of 2026-08-20)
Aug. 10, 2016	NPKI	M	8,906	—	—	301,055 Direct	+3.05%	Acquired	(price as of 2026-08-20)
June 9, 2016	NPKI	F	2,704	$5.36	$14,493	292,149 Direct	-0.92%	Disposed	158.8% (price as of 2026-08-20)
June 1, 2016	NPKI	M	13,412	—	—	100,630 Direct	-11.76%	Disposed	(price as of 2026-08-20)
June 1, 2016	NPKI	F	3,668	$4.99	$18,303	294,853 Direct	-1.23%	Disposed	178.0% (price as of 2026-08-20)
June 1, 2016	NPKI	M	13,412	—	—	298,521 Direct	+4.70%	Acquired	(price as of 2026-08-20)
June 1, 2016	NPKI	F	2,957	$4.99	$14,755	285,109 Direct	-1.03%	Disposed	178.0% (price as of 2026-08-20)
May 19, 2016	NPKI	A	73,806	—	—	114,042 Direct	+183.43%	Acquired	(price as of 2026-08-20)
May 19, 2016	NPKI	A	46,231	—	—	114,477 Direct	+67.74%	Acquired	(price as of 2026-08-20)
May 19, 2016	NPKI	A	81,157	—	—	81,157 Direct	—	Acquired	(price as of 2026-08-20)
Dec. 21, 2015	NPKI	F	10,119	$5.33	$53,934	288,066 Direct	-3.39%	Disposed	160.2% (price as of 2026-08-20)
June 9, 2015	NPKI	F	4,249	$8.66	$36,796	298,185 Direct	-1.40%	Disposed	60.2% (price as of 2026-08-20)
June 9, 2015	NPKI	F	2,704	$8.66	$23,417	302,434 Direct	-0.89%	Disposed	60.2% (price as of 2026-08-20)
June 1, 2015	NPKI	F	2,977	$8.70	$25,900	305,138 Direct	-0.97%	Disposed	59.4% (price as of 2026-08-20)
May 22, 2015	NPKI	A	40,236	—	—	40,236 Direct	—	Acquired	(price as of 2026-08-20)
May 22, 2015	NPKI	A	26,998	—	—	68,246 Direct	+65.45%	Acquired	(price as of 2026-08-20)
May 22, 2015	NPKI	A	46,258	—	—	46,258 Direct	—	Acquired	(price as of 2026-08-20)
Aug. 27, 2014	NPKI	M	9,300	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Aug. 27, 2014	NPKI	M	20,000	—	—	127,250 Direct	-13.58%	Disposed	(price as of 2026-08-20)
Aug. 27, 2014	NPKI	S	29,300	$12.49	$365,957	308,115 Direct	-8.68%	Disposed	11.0% (price as of 2026-08-20)
Aug. 27, 2014	NPKI	M	20,000	$3.31	$66,200	337,415 Direct	+6.30%	Acquired	319.0% (price as of 2026-08-20)
Aug. 27, 2014	NPKI	M	9,300	$7.89	$73,377	317,415 Direct	+3.02%	Acquired	75.8% (price as of 2026-08-20)
Aug. 26, 2014	NPKI	M	68,200	—	—	9,300 Direct	-88.00%	Disposed	(price as of 2026-08-20)
Aug. 26, 2014	NPKI	M	50,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Aug. 26, 2014	NPKI	S	45,100	$12.51	$564,201	308,115 Direct	-12.77%	Disposed	10.9% (price as of 2026-08-20)
Aug. 26, 2014	NPKI	S	73,100	$12.45	$910,095	353,215 Direct	-17.15%	Disposed	11.4% (price as of 2026-08-20)
Aug. 26, 2014	NPKI	M	50,000	$7.82	$391,000	426,315 Direct	+13.29%	Acquired	77.4% (price as of 2026-08-20)
Aug. 26, 2014	NPKI	M	68,200	$7.89	$538,098	376,315 Direct	+22.13%	Acquired	75.8% (price as of 2026-08-20)
June 9, 2014	NPKI	F	8,792	$11.99	$105,416	308,115 Direct	-2.77%	Disposed	15.7% (price as of 2026-08-20)
May 22, 2014	NPKI	G	500	—	—	316,907 Direct	-0.16%	Disposed	(price as of 2026-08-20)
May 22, 2014	NPKI	G	500	—	—	316,907 Direct	-0.16%	Disposed	(price as of 2026-08-20)
May 21, 2014	NPKI	A	21,856	—	—	41,248 Direct	+112.71%	Acquired	(price as of 2026-08-20)
May 21, 2014	NPKI	A	36,795	—	—	36,795 Direct	—	Acquired	(price as of 2026-08-20)
May 21, 2014	NPKI	A	32,656	—	—	317,407 Direct	+11.47%	Acquired	(price as of 2026-08-20)
May 21, 2014	NPKI	A	21,856	—	—	41,248 Direct	+112.71%	Acquired	(price as of 2026-08-20)
May 21, 2014	NPKI	A	36,795	—	—	36,795 Direct	—	Acquired	(price as of 2026-08-20)
May 21, 2014	NPKI	A	32,656	—	—	317,407 Direct	+11.47%	Acquired	(price as of 2026-08-20)
Dec. 21, 2013	NPKI	F	10,501	$11.90	$124,962	284,751 Direct	-3.56%	Disposed	16.6% (price as of 2026-08-20)
June 9, 2013	NPKI	F	8,690	$11.45	$99,500	295,252 Direct	-2.86%	Disposed	21.1% (price as of 2026-08-20)
June 6, 2013	NPKI	A	19,392	—	—	19,392 Direct	—	Acquired	(price as of 2026-08-20)
June 6, 2013	NPKI	A	31,250	—	—	31,250 Direct	—	Acquired	(price as of 2026-08-20)
June 6, 2013	NPKI	A	29,661	—	—	303,942 Direct	+10.81%	Acquired	(price as of 2026-08-20)
June 9, 2012	NPKI	F	1,779	$5.56	$9,891	274,281 Direct	-0.64%	Disposed	149.5% (price as of 2026-08-20)
June 9, 2012	NPKI	F	2,515	$5.56	$13,983	276,060 Direct	-0.90%	Disposed	149.5% (price as of 2026-08-20)
June 6, 2012	NPKI	A	89,972	—	—	89,972 Direct	—	Acquired	(price as of 2026-08-20)
June 6, 2012	NPKI	A	46,611	—	—	278,575 Direct	+20.09%	Acquired	(price as of 2026-08-20)
Dec. 21, 2011	NPKI	A	74,000	—	—	231,964 Direct	+46.85%	Acquired	(price as of 2026-08-20)
June 13, 2011	NPKI	F	2,515	—	—	157,964 Direct	-1.57%	Disposed	(price as of 2026-08-20)
June 9, 2011	NPKI	A	36,820	—	—	36,820 Direct	—	Acquired	(price as of 2026-08-20)
June 9, 2011	NPKI	A	20,183	—	—	160,479 Direct	+14.39%	Acquired	(price as of 2026-08-20)
June 9, 2010	NPKI	A	28,533	—	—	140,296 Direct	+25.53%	Acquired	(price as of 2026-08-20)
Oct. 2, 2009	NPKI	F	8,816	$3.08	$27,153	111,763 Direct	-7.31%	Disposed	350.3% (price as of 2026-08-20)
June 10, 2009	NPKI	A	147,250	—	—	147,250 Direct	—	Acquired	(price as of 2026-08-20)
March 5, 2009	NPKI	F	4,554	$2.32	$10,565	120,579 Direct	-3.64%	Disposed	497.8% (price as of 2026-08-20)
March 5, 2009	NPKI	A	13,950	—	—	125,133 Direct	+12.55%	Acquired	(price as of 2026-08-20)
Dec. 5, 2008	NPKI	P	10,000	$3.60	$36,000	111,183 Direct	+9.88%	Acquired	285.3% (price as of 2026-08-20)
Oct. 2, 2008	NPKI	F	8,817	$6.37	$56,164	101,183 Direct	-8.02%	Disposed	117.7% (price as of 2026-08-20)
June 10, 2008	NPKI	A	77,500	—	—	77,500 Direct	—	Acquired	(price as of 2026-08-20)
June 12, 2007	NPKI	A	50,000	—	—	50,000 Direct	—	Acquired	(price as of 2026-08-20)
Dec. 8, 2006	NPKI	P	9,600	$6.57	$63,072	110,000 Direct	+9.56%	Acquired	111.1% (price as of 2026-08-20)
Dec. 8, 2006	NPKI	P	400	$6.54	$2,616	100,400 Direct	+0.40%	Acquired	112.1% (price as of 2026-08-20)
Oct. 2, 2006	NPKI	A	100,000	—	—	100,000 Direct	—	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
Aug. 14, 2018	NPKI	Performance Shares	Common Stock (26,998)	$0.00	—	26,998	Disposed
June 1, 2018	NPKI	Restricted Stock Units	Common Stock (24,602)	—	—	24,602	Disposed
June 1, 2018	NPKI	Restricted Stock Units	Common Stock (15,631)	—	—	15,631	Disposed
June 1, 2018	NPKI	Restricted Stock Units	Common Stock (13,412)	—	—	13,412	Disposed
May 1, 2018	NPKI	Non-Qualified Stock Option (right to buy)	Common Stock (127,250)	$3.31	June 10, 2019	127,250	Disposed
Aug. 16, 2017	NPKI	Performance Shares	Common Stock (21,856)	$0.00	—	21,856	Disposed
June 1, 2017	NPKI	Restricted Stock Units	Common Stock (24,602)	—	—	24,602	Disposed
June 1, 2017	NPKI	Restricted Stock Units	Common Stock (13,412)	—	—	13,412	Disposed
May 18, 2017	NPKI	Restricted Stock Units	Common Stock (46,891)	$0.00	—	46,891	Acquired
Aug. 10, 2016	NPKI	Performance Shares	Common Stock (19,392)	$0.00	—	19,392	Disposed
June 1, 2016	NPKI	Restricted Stock Units	Common Stock (13,412)	—	—	13,412	Disposed
May 19, 2016	NPKI	Restricted Stock Units	Common Stock (73,806)	$0.00	—	73,806	Acquired
May 19, 2016	NPKI	Performance Shares	Common Stock (46,231)	$0.00	—	46,231	Acquired
May 19, 2016	NPKI	Non-Qualified Stock Option (right to buy)	Common Stock (81,157)	$4.32	May 19, 2026	81,157	Acquired
May 22, 2015	NPKI	Restricted Stock Units	Common Stock (40,236)	$0.00	—	40,236	Acquired
May 22, 2015	NPKI	Performance Shares	Common Stock (26,998)	$0.00	—	26,998	Acquired
May 22, 2015	NPKI	Non-Qualified Stock Option (right to buy)	Common Stock (46,258)	$9.00	May 21, 2025	46,258	Acquired
Aug. 27, 2014	NPKI	Non-Qualified Stock Option (right to buy)	Common Stock (9,300)	$7.89	June 10, 2018	9,300	Disposed
Aug. 27, 2014	NPKI	Non-Qualified Stock Option (right to buy)	Common Stock (20,000)	$3.31	June 10, 2019	20,000	Disposed
Aug. 26, 2014	NPKI	Non-Qualified Stock Option (right to buy)	Common Stock (68,200)	$7.89	June 10, 2018	68,200	Disposed
Aug. 26, 2014	NPKI	Non-Qualified Stock Option (right to buy)	Common Stock (50,000)	$7.82	June 11, 2017	50,000	Disposed
May 21, 2014	NPKI	Performance Shares	Common Stock (21,856)	$0.00	—	21,856	Acquired
May 21, 2014	NPKI	Non-Qualified Stock Option (right to buy)	Common Stock (36,795)	$11.20	May 21, 2024	36,795	Acquired
May 21, 2014	NPKI	Performance Shares	Common Stock (21,856)	$0.00	—	21,856	Acquired
May 21, 2014	NPKI	Non-Qualified Stock Option (right to buy)	Common Stock (36,795)	$11.20	May 21, 2024	36,795	Acquired
June 6, 2013	NPKI	Performance Shares	Common Stock (19,392)	$0.00	—	19,392	Acquired
June 6, 2013	NPKI	Non-Qualified Stock Option (right to buy)	Common Stock (31,250)	$11.43	June 6, 2023	31,250	Acquired
June 6, 2012	NPKI	Non-Qualified Stock Option (right to buy)	Common Stock (89,972)	$5.57	June 6, 2022	89,972	Acquired
June 9, 2011	NPKI	Non-Qualified Stock Option (right to buy)	Common Stock (36,820)	$9.13	June 9, 2021	36,820	Acquired
June 10, 2009	NPKI	Stock Option	Common Stock (147,250)	$3.31	June 10, 2019	147,250	Acquired
June 10, 2008	NPKI	Stock Option	Common Stock (77,500)	$7.89	June 10, 2018	77,500	Acquired
June 12, 2007	NPKI	Stock Option	Common Stock (50,000)	$7.82	June 11, 2017	50,000	Acquired

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

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

NPKI

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2014	$376,250	—	$548,613	$182,941	$316,905	—	$30,372	$1,455,081
2013	$346,250	—	$508,511	$169,484	$203,376	—	$31,447	$1,259,068
2012	$331,250	—	$259,623	$259,614	$106,317	—	$28,842	$985,646

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.