Darlene J. S. Solomon

Insider

First SEC filing: Feb. 10, 2014 · Latest: June 12, 2026

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.

Insider at

Insider transactions

0 buys (P) 1 sells (S) Net: $-1,082,675 + 91 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

91 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Aug. 7, 2026	MTRN	S	3,705	$292.22	$1,082,675	26,718 Direct	-12.18%	Disposed	-20.0% (price as of 2026-08-21)
June 10, 2026	MASI	D	1,119	—	—	0 Direct	-100.00%	Disposed
June 10, 2026	MASI	D	3,015	$180.00	$542,700	0 Direct	-100.00%	Disposed
Jan. 2, 2026	NOVTU	A	1,799	—	—	1,799 Direct	—	Acquired	(price as of 2026-08-21)
Jan. 2, 2026	NOVTU	M	1,325	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Jan. 2, 2026	NOVTU	M	1,325	—	—	3,541 Direct	+59.79%	Acquired	(price as of 2026-08-21)
Dec. 5, 2025	MTRN	A	2	—	—	2,004 Direct	+0.10%	Acquired	(price as of 2026-08-21)
Sept. 5, 2025	MTRN	A	2	—	—	2,002 Direct	+0.10%	Acquired	(price as of 2026-08-21)
June 13, 2025	MTRN	A	4	—	—	2,000 Direct	+0.20%	Acquired	(price as of 2026-08-21)
May 8, 2025	MTRN	A	1,996	—	—	1,996 Direct	—	Acquired	(price as of 2026-08-21)
May 7, 2025	MTRN	M	1,155	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
May 7, 2025	MTRN	M	1,155	—	—	28,417 Direct	+4.24%	Acquired	(price as of 2026-08-21)
April 29, 2025	MASI	A	1,225	—	—	1,225 Direct	—	Acquired
April 29, 2025	MASI	M	1,790	—	—	0 Direct	-100.00%	Disposed
April 29, 2025	MASI	M	1,790	—	—	1,790 Direct	—	Acquired
March 7, 2025	MTRN	A	2	—	—	1,155 Direct	+0.17%	Acquired	(price as of 2026-08-21)
Jan. 2, 2025	NOVTU	M	1,217	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Jan. 2, 2025	NOVTU	A	1,325	—	—	1,325 Direct	—	Acquired	(price as of 2026-08-21)
Jan. 2, 2025	NOVTU	M	1,217	—	—	2,216 Direct	+121.82%	Acquired	(price as of 2026-08-21)
Dec. 6, 2024	MTRN	A	1	—	—	1,153 Direct	+0.09%	Acquired	(price as of 2026-08-21)
Sept. 19, 2024	MASI	A	1,790	—	—	1,790 Direct	—	Acquired
Sept. 6, 2024	MTRN	A	1	—	—	1,152 Direct	+0.09%	Acquired	(price as of 2026-08-21)
July 3, 2024	NOVTU	M	278	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
July 3, 2024	NOVTU	M	278	—	—	999 Direct	+38.56%	Acquired	(price as of 2026-08-21)
June 7, 2024	MTRN	A	1	—	—	1,151 Direct	+0.09%	Acquired	(price as of 2026-08-21)
May 10, 2024	MTRN	A	1,150	—	—	1,150 Direct	—	Acquired	(price as of 2026-08-21)
May 9, 2024	MTRN	M	1,152	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
May 9, 2024	MTRN	M	1,152	—	—	27,262 Direct	+4.41%	Acquired	(price as of 2026-08-21)
March 8, 2024	MTRN	A	1	—	—	1,152 Direct	+0.09%	Acquired	(price as of 2026-08-21)
Jan. 3, 2024	NOVTU	M	464	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Jan. 3, 2024	NOVTU	M	464	—	—	721 Direct	+180.54%	Acquired	(price as of 2026-08-21)
Jan. 2, 2024	NOVTU	A	1,217	—	—	1,217 Direct	—	Acquired	(price as of 2026-08-21)
Dec. 8, 2023	MTRN	A	1	—	—	1,151 Direct	+0.09%	Acquired	(price as of 2026-08-21)
Sept. 7, 2023	MTRN	A	1	—	—	1,150 Direct	+0.09%	Acquired	(price as of 2026-08-21)
July 3, 2023	NOVTU	A	278	—	—	278 Direct	—	Acquired	(price as of 2026-08-21)
June 28, 2023	NOVTU	M	257	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
June 28, 2023	NOVTU	M	257	—	—	257 Direct	—	Acquired	(price as of 2026-08-21)
June 15, 2023	MTRN	A	1	—	—	1,149 Direct	+0.09%	Acquired	(price as of 2026-08-21)
May 18, 2023	MTRN	A	1,148	—	—	1,148 Direct	—	Acquired	(price as of 2026-08-21)
May 5, 2023	MTRN	M	1,398	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
May 5, 2023	MTRN	M	1,398	—	—	26,110 Direct	+5.66%	Acquired	(price as of 2026-08-21)
March 10, 2023	MTRN	A	2	—	—	1,398 Direct	+0.14%	Acquired	(price as of 2026-08-21)
Jan. 3, 2023	NOVTU	A	464	—	—	721 Direct	+180.54%	Acquired	(price as of 2026-08-21)
Jan. 3, 2023	NOVTU	A	464	—	—	464 Direct	—	Acquired	(price as of 2026-08-21)
Dec. 8, 2022	MTRN	A	2	—	—	1,396 Direct	+0.14%	Acquired	(price as of 2026-08-21)
Sept. 8, 2022	MTRN	A	2	—	—	1,394 Direct	+0.14%	Acquired	(price as of 2026-08-21)
June 28, 2022	NOVTU	A	257	—	—	257 Direct	—	Acquired	(price as of 2026-08-21)
June 28, 2022	NOVTU	A	257	—	—	257 Direct	—	Acquired	(price as of 2026-08-21)
June 16, 2022	MTRN	A	2	—	—	1,392 Direct	+0.14%	Acquired	(price as of 2026-08-21)
May 5, 2022	MTRN	A	1,390	—	—	1,390 Direct	—	Acquired	(price as of 2026-08-21)
May 4, 2022	MTRN	M	1,246	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
May 4, 2022	MTRN	M	1,246	—	—	24,712 Direct	+5.31%	Acquired	(price as of 2026-08-21)
March 11, 2022	MTRN	A	2	—	—	1,246 Direct	+0.16%	Acquired	(price as of 2026-08-21)
Dec. 3, 2021	MTRN	A	2	—	—	1,244 Direct	+0.16%	Acquired	(price as of 2026-08-21)
Sept. 3, 2021	MTRN	A	2	—	—	1,242 Direct	+0.16%	Acquired	(price as of 2026-08-21)
June 11, 2021	MTRN	A	2	—	—	1,240 Direct	+0.16%	Acquired	(price as of 2026-08-21)
May 6, 2021	MTRN	A	1,238	—	—	1,238 Direct	—	Acquired	(price as of 2026-08-21)
May 6, 2021	MTRN	M	2,012	$76.73	$154,381	0 Direct	-100.00%	Disposed	204.7% (price as of 2026-08-21)
May 6, 2021	MTRN	M	2,012	$76.73	$154,381	23,466 Direct	+9.38%	Acquired	204.7% (price as of 2026-08-21)
March 5, 2021	MTRN	A	3	—	—	2,012 Direct	+0.15%	Acquired	(price as of 2026-08-21)
Nov. 30, 2020	MTRN	A	4	—	—	2,009 Direct	+0.20%	Acquired	(price as of 2026-08-21)
Sept. 4, 2020	MTRN	A	4	—	—	2,005 Direct	+0.20%	Acquired	(price as of 2026-08-21)
June 10, 2020	MTRN	A	4	—	—	2,001 Direct	+0.20%	Acquired	(price as of 2026-08-21)
May 14, 2020	MTRN	A	1,997	$47.57	$94,997	1,997 Direct	—	Acquired	391.4% (price as of 2026-08-21)
May 8, 2020	MTRN	M	1,391	$51.76	$71,998	0 Direct	-100.00%	Disposed	351.6% (price as of 2026-08-21)
May 8, 2020	MTRN	M	1,391	$51.76	$71,998	21,454 Direct	+6.93%	Acquired	351.6% (price as of 2026-08-21)
March 6, 2020	MTRN	A	3	—	—	1,391 Direct	+0.22%	Acquired	(price as of 2026-08-21)
Dec. 4, 2019	MTRN	A	3	—	—	1,388 Direct	+0.22%	Acquired	(price as of 2026-08-21)
Sept. 5, 2019	MTRN	A	2	—	—	1,385 Direct	+0.14%	Acquired	(price as of 2026-08-21)
June 5, 2019	MTRN	A	2	—	—	1,383 Direct	+0.14%	Acquired	(price as of 2026-08-21)
May 9, 2019	MTRN	A	1,381	$68.79	$94,999	1,381 Direct	—	Acquired	239.8% (price as of 2026-08-21)
May 3, 2019	MTRN	M	1,855	—	—	20,063 Direct	+10.19%	Acquired	(price as of 2026-08-21)
May 3, 2019	MTRN	M	1,855	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
March 7, 2019	MTRN	A	3	—	—	1,855 Direct	+0.16%	Acquired	(price as of 2026-08-21)
Dec. 3, 2018	MTRN	A	4	—	—	1,852 Direct	+0.22%	Acquired	(price as of 2026-08-21)
Sept. 5, 2018	MTRN	A	3	—	—	1,848 Direct	+0.16%	Acquired	(price as of 2026-08-21)
June 1, 2018	MTRN	A	4	—	—	1,845 Direct	+0.22%	Acquired	(price as of 2026-08-21)
May 3, 2018	MTRN	A	2,332	$52.35	$122,080	18,208 Direct	+14.69%	Acquired	346.5% (price as of 2026-08-21)
May 3, 2018	MTRN	A	1,841	$51.60	$94,996	4,782 Direct	+62.60%	Acquired	353.0% (price as of 2026-08-21)
May 5, 2017	MTRN	A	2,941	$34.40	$101,170	15,876 Direct	+22.74%	Acquired	579.5% (price as of 2026-08-21)
May 4, 2017	MTRN	A	2,332	$34.30	$79,988	5,273 Direct	+79.29%	Acquired	581.5% (price as of 2026-08-21)
May 4, 2016	MTRN	A	2,941	—	—	2,941 Direct	—	Acquired	(price as of 2026-08-21)
May 7, 2015	MTRN	A	2,098	$38.13	$79,997	12,935 Direct	+19.36%	Acquired	513.1% (price as of 2026-08-21)
March 3, 2015	MTRN	A	5	$36.81	$184	10,837 Direct	+0.05%	Acquired	535.1% (price as of 2026-08-21)
Nov. 20, 2014	MTRN	A	5	$36.11	$181	10,832 Direct	+0.05%	Acquired	547.4% (price as of 2026-08-21)
Aug. 20, 2014	MTRN	A	6	$32.98	$198	10,827 Direct	+0.06%	Acquired	608.8% (price as of 2026-08-21)
June 4, 2014	MTRN	A	5	$34.38	$172	10,821 Direct	+0.05%	Acquired	579.9% (price as of 2026-08-21)
May 8, 2014	MTRN	A	2,463	$32.48	$79,998	10,816 Direct	+29.49%	Acquired	619.7% (price as of 2026-08-21)
March 6, 2014	MTRN	A	7	$34.13	$239	8,353 Direct	+0.08%	Acquired	584.9% (price as of 2026-08-21)
May 2, 2013	MTRN	A	3,186	$25.11	$80,000	8,321 Direct	+62.04%	Acquired	831.0% (price as of 2026-08-21)
May 3, 2012	MTRN	A	2,654	$24.50	$65,023	5,135 Direct	+106.97%	Acquired	854.1% (price as of 2026-08-21)
July 28, 2011	MTRN	A	2,481	$40.31	$100,009	2,481 Direct	—	Acquired	479.9% (price as of 2026-08-21)

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
June 10, 2026	MASI	Restricted Stock Units	Common Stock (1,119)	—	—	1,119	Disposed
Jan. 2, 2026	NOVTU	Restricted Stock Units	Common Stock (1,799)	—	—	1,799	Acquired
Jan. 2, 2026	NOVTU	Restricted Stock Units	Common Stock (1,325)	—	—	1,325	Disposed
Dec. 5, 2025	MTRN	Restricted Stock Units	Common Stock (2)	—	—	2	Acquired
Sept. 5, 2025	MTRN	Restricted Stock Units	Common Stock (2)	—	—	2	Acquired
June 13, 2025	MTRN	Restricted Stock Units	Common Stock (4)	—	—	4	Acquired
May 8, 2025	MTRN	Restricted Stock Units	Common Stock (1,996)	—	—	1,996	Acquired
May 7, 2025	MTRN	Restricted Stock Units	Common Stock (1,155)	—	—	1,155	Disposed
April 29, 2025	MASI	Restricted Stock Units	Common Stock (1,225)	—	April 29, 2035	1,225	Acquired
April 29, 2025	MASI	Restricted Stock Units	Common Stock (1,790)	—	Sept. 19, 2034	1,790	Disposed
March 7, 2025	MTRN	Restricted Stock Units	Common Stock (2)	—	—	2	Acquired
Jan. 2, 2025	NOVTU	Restricted Stock Units	Common Stock (1,217)	—	—	1,217	Disposed
Jan. 2, 2025	NOVTU	Restricted Stock Units	Common Stock (1,325)	—	—	1,325	Acquired
Dec. 6, 2024	MTRN	Restricted Stock Units	Common Stock (1)	—	—	1	Acquired
Sept. 19, 2024	MASI	Restricted Stock Units	Common Stock (1,790)	—	Sept. 19, 2034	1,790	Acquired
Sept. 6, 2024	MTRN	Restricted Stock Units	Common Stock (1)	—	—	1	Acquired
July 3, 2024	NOVTU	Restricted Stock Units	Common Stock (278)	—	—	278	Disposed
June 7, 2024	MTRN	Restricted Stock Units	Common Stock (1)	—	—	1	Acquired
May 10, 2024	MTRN	Restricted Stock Units	Common Stock (1,150)	—	—	1,150	Acquired
May 9, 2024	MTRN	Restricted Stock Units	Common Stock (1,152)	—	—	1,152	Disposed
March 8, 2024	MTRN	Restricted Stock Units	Common Stock (1)	—	—	1	Acquired
Jan. 3, 2024	NOVTU	Restricted Stock Units	Common Stock (464)	—	—	464	Disposed
Jan. 2, 2024	NOVTU	Restricted Stock Units	Common Stock (1,217)	—	—	1,217	Acquired
Dec. 8, 2023	MTRN	Restricted Stock Units	Common Stock (1)	—	—	1	Acquired
Sept. 7, 2023	MTRN	Restricted Stock Units	Common Stock (1)	—	—	1	Acquired
July 3, 2023	NOVTU	Restricted Stock Units	Common Stock (278)	—	—	278	Acquired
June 28, 2023	NOVTU	Restricted Stock Units	Common Stock (257)	—	—	257	Disposed
June 15, 2023	MTRN	Restricted Stock Units	Common Stock (1)	—	—	1	Acquired
May 18, 2023	MTRN	Restricted Stock Units	Common Stock (1,148)	—	—	1,148	Acquired
May 5, 2023	MTRN	Restricted Stock Units	Common Stock (1,398)	—	—	1,398	Disposed
March 10, 2023	MTRN	Restricted Stock Units	Common Stock (2)	—	—	2	Acquired
Jan. 3, 2023	NOVTU	Deferred Stock Units	Common Stock (464)	—	—	464	Acquired
Jan. 3, 2023	NOVTU	Restricted Stock Units [F1]	Common Stock (464)	—	—	464	Acquired
Dec. 8, 2022	MTRN	Restricted Stock Units	Common Stock (2)	—	—	2	Acquired
Sept. 8, 2022	MTRN	Restricted Stock Units	Common Stock (2)	—	—	2	Acquired
June 28, 2022	NOVTU	Restricted Stock Units	Common Stock (257)	—	—	257	Acquired
June 28, 2022	NOVTU	Deferred Stock Units	Common Stock (257)	—	—	257	Acquired
June 16, 2022	MTRN	Restricted Stock Units	Common Stock (2)	—	—	2	Acquired
May 5, 2022	MTRN	Restricted Stock Units	Common Stock (1,390)	—	—	1,390	Acquired
May 4, 2022	MTRN	Restricted Stock Units	Common Stock (1,246)	—	—	1,246	Disposed
March 11, 2022	MTRN	Restricted Stock Units	Common Stock (2)	—	—	2	Acquired
Dec. 3, 2021	MTRN	Restricted Stock Units	Common Stock (2)	—	—	2	Acquired
Sept. 3, 2021	MTRN	Common Stock	Common Stock (2)	—	—	2	Acquired
June 11, 2021	MTRN	Restricted Stock Units	Common Stock (2)	—	—	2	Acquired
May 6, 2021	MTRN	Restricted Stock Units	Common Stock (1,238)	—	—	1,238	Acquired
May 6, 2021	MTRN	Restricted Stock Units	Common Stock (2,012)	—	—	2,012	Disposed
March 5, 2021	MTRN	Restricted Stock Units	Common Stock (3)	—	—	3	Acquired
Nov. 30, 2020	MTRN	Restricted Stock Units	Common Stock (4)	—	—	4	Acquired
Sept. 4, 2020	MTRN	Restricted Stock Units	Common Stock (4)	—	—	4	Acquired
June 10, 2020	MTRN	Common Stock	Common Stock (4)	—	—	4	Acquired
May 14, 2020	MTRN	Common Stock	Common Stock (1,997)	—	—	1,997	Acquired
May 8, 2020	MTRN	Common Stock	Common Stock (1,391)	—	—	1,391	Disposed
March 6, 2020	MTRN	Common Stock	Common Stock (3)	—	—	3	Acquired
Dec. 4, 2019	MTRN	Restricted Stock Units	Common Stock (3)	—	—	3	Acquired
Sept. 5, 2019	MTRN	Restricted Stock Units	Common Stock (2)	—	—	2	Acquired
June 5, 2019	MTRN	Restricted Stock Units	Common Stock (2)	—	—	2	Acquired
May 9, 2019	MTRN	Restricted Stock Units	Common Stock (1,381)	—	—	1,381	Acquired
May 3, 2019	MTRN	Restricted Stock Unit	Common Stock (1,855)	—	—	1,855	Disposed
March 7, 2019	MTRN	Restricted Stock Unit	Common Stock (3)	—	—	3	Acquired
Dec. 3, 2018	MTRN	Restricted Stock Units	Common Stock (4)	—	—	4	Acquired
Sept. 5, 2018	MTRN	Restricted Stock Units	Common Stock (3)	—	—	3	Acquired
June 1, 2018	MTRN	Restricted Stock Units	Common Stock (4)	—	—	4	Acquired
May 3, 2018	MTRN	Restricted Stock Unit	Common Stock (1,841)	—	—	1,841	Acquired
May 4, 2017	MTRN	Restricted Stock Units [F1]	Common Stock (2,332)	—	—	2,332	Acquired
May 4, 2016	MTRN	Restricted Stock Unit	Common Stock (2,941)	—	May 4, 2022	2,941	Acquired

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