Mark E Stoering

Insider

First SEC filing: Jan. 6, 2012 · Latest: Jan. 6, 2012

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

XELLL selling Nov. 6, 2017

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 24 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

24 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Feb. 20, 2018	XELLL	M	1,224	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
Feb. 20, 2018	XELLL	F	3,072	$44.68	$137,257	53,306 Direct	-5.45%	Disposed	-48.8% (price as of 2026-08-19)
Feb. 20, 2018	XELLL	M	1,224	—	—	56,378 Direct	+2.22%	Acquired	(price as of 2026-08-19)
Feb. 20, 2018	XELLL	A	6,730	—	—	55,154 Direct	+13.90%	Acquired	(price as of 2026-08-19)
Jan. 2, 2018	XELLL	A	921	—	—	921 Direct	—	Acquired	(price as of 2026-08-19)
Nov. 6, 2017	XELLL	S	20,187	$49.66	$1,002,486	48,424 Direct	-29.42%	Disposed	-53.9% (price as of 2026-08-19)
Feb. 21, 2017	XELLL	M	1,498	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
Feb. 21, 2017	XELLL	F	3,755	$42.00	$157,710	68,611 Direct	-5.19%	Disposed	-45.5% (price as of 2026-08-19)
Feb. 21, 2017	XELLL	M	1,498	—	—	72,368 Direct	+2.11%	Acquired	(price as of 2026-08-19)
Feb. 21, 2017	XELLL	A	7,698	$42.00	$323,316	70,870 Direct	+12.19%	Acquired	-45.5% (price as of 2026-08-19)
Jan. 3, 2017	XELLL	A	1,084	—	—	1,084 Direct	—	Acquired	(price as of 2026-08-19)
Feb. 16, 2016	XELLL	F	3,459	$38.82	$134,278	63,172 Direct	-5.19%	Disposed	-41.0% (price as of 2026-08-19)
Feb. 16, 2016	XELLL	A	7,692	—	—	66,631 Direct	+13.05%	Acquired	(price as of 2026-08-19)
Jan. 4, 2016	XELLL	A	1,121	—	—	1,121 Direct	—	Acquired	(price as of 2026-08-19)
Feb. 17, 2015	XELLL	F	3,282	$35.00	$114,870	58,939 Direct	-5.27%	Disposed	-34.6% (price as of 2026-08-19)
Feb. 17, 2015	XELLL	A	6,334	—	—	62,221 Direct	+11.33%	Acquired	(price as of 2026-08-19)
Jan. 2, 2015	XELLL	A	1,108	—	—	1,108 Direct	—	Acquired	(price as of 2026-08-19)
Feb. 19, 2014	XELLL	A	10,197	—	—	61,147 Direct	+20.01%	Acquired	(price as of 2026-08-19)
Feb. 19, 2014	XELLL	F	5,260	$29.69	$156,169	55,887 Direct	-8.60%	Disposed	-22.9% (price as of 2026-08-19)
Feb. 19, 2014	XELLL	A	1,348	—	—	1,348 Direct	—	Acquired	(price as of 2026-08-19)
Feb. 20, 2013	XELLL	F	82	$28.30	$2,321	50,950 Direct	-0.16%	Disposed	-19.1% (price as of 2026-08-19)
Feb. 20, 2013	XELLL	A	235	—	—	51,032 Direct	+0.46%	Acquired	(price as of 2026-08-19)
Feb. 22, 2012	XELLL	F	3,155	$26.50	$83,608	50,797 Direct	-5.85%	Disposed	-13.6% (price as of 2026-08-19)
Feb. 22, 2012	XELLL	F	2,685	$26.43	$70,965	53,952 Direct	-4.74%	Disposed	-13.4% (price as of 2026-08-19)
Feb. 22, 2012	XELLL	A	13,652	—	—	56,637 Direct	+31.76%	Acquired	(price as of 2026-08-19)

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. 20, 2018	XELLL	Restricted Stock Units	Common Stock	—	—	1,224	Disposed
Jan. 2, 2018	XELLL	Restricted Stock Units	Common Stock (921)	—	Dec. 31, 2020	921	Acquired
Feb. 21, 2017	XELLL	Restricted Stock Units	Common Stock	—	—	1,498	Disposed
Jan. 3, 2017	XELLL	Restricted Stock Units	Common Stock (1,084)	—	Dec. 31, 2019	1,084	Acquired
Jan. 4, 2016	XELLL	Restricted Stock Units	Common Stock (1,121)	—	Dec. 31, 2018	1,121	Acquired
Jan. 2, 2015	XELLL	Restricted Stock Units	Common Stock (1,108)	—	Dec. 31, 2017	1,108	Acquired
Feb. 19, 2014	XELLL	Restricted Stock Units	Common Stock (1,348)	—	Dec. 31, 2016	1,348	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. 6, 2012	XELLL	Common Stock	42,985	Direct
Jan. 6, 2012	XELLL	Common Stock	68	Indirect
Jan. 6, 2012	XELLL	Phantom Stock→ Common Stock (449)	449	Direct