Brian G. Mason

Insider

First SEC filing: Jan. 9, 2017 · Latest: Jan. 9, 2017

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.
Compensation Executive pay disclosed in company proxy statements.

Insider at

SPXC selling Sept. 30, 2021

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 36 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

36 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Oct. 1, 2021	SPXC	F	1,185	$53.45	$63,338	60,061 Direct	-1.93%	Disposed	284.9% (price as of 2026-08-20)
Sept. 30, 2021	SPXC	M	10,000	$12.36	$123,600	71,246 Direct	+16.33%	Acquired	1564.3% (price as of 2026-08-20)
Sept. 30, 2021	SPXC	M	10,000	—	—	1,574 Direct	-86.40%	Disposed	(price as of 2026-08-20)
Sept. 30, 2021	SPXC	S 10b5-1	2,800	$54.73	$153,244	61,246 Direct	-4.37%	Disposed	275.9% (price as of 2026-08-20)
Sept. 30, 2021	SPXC	S 10b5-1	7,200	$53.98	$388,656	64,046 Direct	-10.11%	Disposed	281.1% (price as of 2026-08-20)
Sept. 23, 2021	SPXC	M	10,000	—	—	11,574 Direct	-46.35%	Disposed	(price as of 2026-08-20)
Sept. 23, 2021	SPXC	S 10b5-1	10,000	$55.49	$554,900	61,246 Direct	-14.04%	Disposed	270.7% (price as of 2026-08-20)
Sept. 23, 2021	SPXC	M	10,000	$12.36	$123,600	71,246 Direct	+16.33%	Acquired	1564.3% (price as of 2026-08-20)
March 1, 2021	SPXC	A	5,786	—	—	5,786 Direct	—	Acquired	(price as of 2026-08-20)
March 1, 2021	SPXC	A	6,730	—	—	61,246 Direct	+12.34%	Acquired	(price as of 2026-08-20)
Feb. 22, 2021	SPXC	F	333	$56.03	$18,658	54,516 Direct	-0.61%	Disposed	267.1% (price as of 2026-08-20)
Feb. 22, 2021	SPXC	F	521	$56.03	$29,192	54,849 Direct	-0.94%	Disposed	267.1% (price as of 2026-08-20)
Feb. 22, 2021	SPXC	F	518	$56.03	$29,024	55,370 Direct	-0.93%	Disposed	267.1% (price as of 2026-08-20)
Feb. 22, 2021	SPXC	F	2,306	$56.03	$129,205	55,888 Direct	-3.96%	Disposed	267.1% (price as of 2026-08-20)
Feb. 22, 2021	SPXC	A	1,752	—	—	58,194 Direct	+3.10%	Acquired	(price as of 2026-08-20)
March 2, 2020	SPXC	F	583	$41.93	$24,445	56,442 Direct	-1.02%	Disposed	390.6% (price as of 2026-08-20)
Feb. 24, 2020	SPXC	F	518	$50.30	$26,055	57,025 Direct	-0.90%	Disposed	309.0% (price as of 2026-08-20)
Feb. 21, 2020	SPXC	F	3,218	$50.09	$161,190	57,543 Direct	-5.30%	Disposed	310.7% (price as of 2026-08-20)
Feb. 21, 2020	SPXC	A	1,974	—	—	60,761 Direct	+3.36%	Acquired	(price as of 2026-08-20)
Feb. 20, 2020	SPXC	A	6,472	—	—	6,472 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 20, 2020	SPXC	A	6,761	—	—	58,787 Direct	+13.00%	Acquired	(price as of 2026-08-20)
Dec. 20, 2019	SPXC	S 10b5-1	25,000	$50.94	$1,273,500	52,026 Direct	-32.46%	Disposed	303.8% (price as of 2026-08-20)
Dec. 20, 2019	SPXC	M	25,000	—	—	21,574 Direct	-53.68%	Disposed	(price as of 2026-08-20)
Dec. 20, 2019	SPXC	M	25,000	$12.36	$309,000	77,026 Direct	+48.05%	Acquired	1564.3% (price as of 2026-08-20)
March 4, 2019	SPXC	F	1,104	$36.48	$40,274	52,026 Direct	-2.08%	Disposed	463.9% (price as of 2026-08-20)
March 1, 2019	SPXC	F	583	$36.36	$21,198	53,130 Direct	-1.09%	Disposed	465.8% (price as of 2026-08-20)
Feb. 22, 2019	SPXC	F	5,663	$36.51	$206,756	53,713 Direct	-9.54%	Disposed	463.4% (price as of 2026-08-20)
Feb. 22, 2019	SPXC	A	3,738	$36.51	$136,474	59,376 Direct	+6.72%	Acquired	463.4% (price as of 2026-08-20)
Feb. 21, 2019	SPXC	A	9,683	—	—	9,683 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 21, 2019	SPXC	A	10,577	—	—	55,638 Direct	+23.47%	Acquired	(price as of 2026-08-20)
Oct. 15, 2018	SPXC	F	6,698	$29.75	$199,266	45,061 Direct	-12.94%	Disposed	591.5% (price as of 2026-08-20)
March 2, 2018	SPXC	F	731	$30.81	$22,522	51,759 Direct	-1.39%	Disposed	567.7% (price as of 2026-08-20)
March 1, 2018	SPXC	F	376	$31.23	$11,742	52,490 Direct	-0.71%	Disposed	558.7% (price as of 2026-08-20)
Feb. 22, 2018	SPXC	A	10,029	—	—	10,029 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 22, 2018	SPXC	A	7,008	—	—	52,866 Direct	+15.28%	Acquired	(price as of 2026-08-20)
Jan. 12, 2018	SPXC	F	1,823	$32.87	$59,922	45,858 Direct	-3.82%	Disposed	525.8% (price as of 2026-08-20)
March 2, 2017	SPXC	F	757	$27.40	$20,742	47,681 Direct	-1.56%	Disposed	650.8% (price as of 2026-08-20)
March 1, 2017	SPXC	A	11,367	—	—	11,367 Direct	—	Acquired	(price as of 2026-08-20)
March 1, 2017	SPXC	A	7,894	—	—	48,438 Direct	+19.47%	Acquired	(price as of 2026-08-20)
Jan. 12, 2017	SPXC	F	1,833	$24.89	$45,623	40,544 Direct	-4.33%	Disposed	726.5% (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
Sept. 30, 2021	SPXC	Employee stock option to purchase common stock	Common Stock (10,000)	$12.36	Oct. 13, 2025	10,000	Disposed
Sept. 23, 2021	SPXC	Employee stock option to purchase common stock	Common Stock (10,000)	$12.36	Oct. 13, 2025	10,000	Disposed
March 1, 2021	SPXC	Employee stock option to purchase common stock	Common Stock (5,786)	$58.34	March 1, 2031	5,786	Acquired
Feb. 20, 2020	SPXC	Employee stock option to purchase common stock	Common Stock (6,472)	$50.09	Feb. 20, 2030	6,472	Acquired
Dec. 20, 2019	SPXC	Employee stock option to purchase common stock	Common Stock (25,000)	$12.36	Oct. 13, 2025	25,000	Disposed
Feb. 21, 2019	SPXC	Employee stock option to purchase common stock	Common Stock (9,683)	$36.51	Feb. 21, 2029	9,683	Acquired
Feb. 22, 2018	SPXC	Employee stock option to purchase common stock	Common Stock (10,029)	$32.69	Feb. 22, 2028	10,029	Acquired
March 1, 2017	SPXC	Employee stock option to purchase common stock	Common Stock (11,367)	$27.40	March 1, 2027	11,367	Acquired

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

Initial ownership (Form 3) 3 holdings

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

Date	Ticker	Security	Shares	Ownership
Jan. 9, 2017	SPXC	Common Stock	42,377	Direct
Jan. 9, 2017	SPXC	Employee stock option to purchase common stock→ Common Stock (46,574)	46,574	Direct
Jan. 9, 2017	SPXC	Employee stock option to purchase common stock→ Common Stock (22,430)	22,430	Direct

Compensation (DEF 14A)

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

SPXC

President, Transformer Solutions

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2020	$397,520	—	$346,591	$112,613	$483,217	—	$59,477	$1,399,418

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