Kelli Mari Howell

Insider

First SEC filing: March 14, 2018 · Latest: March 14, 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.
Initial holdings The stakes this person held when they first started reporting.

Insider at

ATEC buying March 11, 2019

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 16 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

16 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Aug. 5, 2022	ATEC	F	6,050	$8.03	$48,582	540,098 Direct	-1.11%	Disposed	19.7% (price as of 2026-08-20)
March 18, 2022	ATEC	F	2,940	$10.94	$32,164	544,114 Direct	-0.54%	Disposed	-12.2% (price as of 2026-08-20)
Feb. 24, 2022	ATEC	A	30,655	—	—	547,054 Direct	+5.94%	Acquired	(price as of 2026-08-20)
Feb. 24, 2022	ATEC	A	25,000	—	—	516,399 Direct	+5.09%	Acquired	(price as of 2026-08-20)
Aug. 5, 2021	ATEC	F	6,050	$15.23	$92,142	491,399 Direct	-1.22%	Disposed	-36.9% (price as of 2026-08-20)
May 17, 2021	ATEC	F	17,525	$14.81	$259,545	497,449 Direct	-3.40%	Disposed	-35.1% (price as of 2026-08-20)
April 29, 2021	ATEC	F	11,474	$16.33	$187,370	512,467 Direct	-2.19%	Disposed	-41.2% (price as of 2026-08-20)
Feb. 18, 2021	ATEC	A	20,000	—	—	523,941 Direct	+3.97%	Acquired	(price as of 2026-08-20)
April 22, 2020	ATEC	A	98,534	—	—	500,549 Direct	+24.51%	Acquired	(price as of 2026-08-20)
April 6, 2020	ATEC	A	11,136	$3.93	$43,764	402,015 Direct	+2.85%	Acquired	144.5% (price as of 2026-08-20)
May 13, 2019	ATEC	A	35,345	—	—	390,368 Direct	+9.96%	Acquired	(price as of 2026-08-20)
May 13, 2019	ATEC	A	141,379	—	—	347,019 Direct	+68.75%	Acquired	(price as of 2026-08-20)
March 11, 2019	ATEC	P	100,000	$2.59	$259,000	205,640 Direct	+94.66%	Acquired	271.0% (price as of 2026-08-20)
July 30, 2018	ATEC	A	71,006	—	—	71,006 Direct	—	Acquired	(price as of 2026-08-20)
July 30, 2018	ATEC	A	48,810	—	—	98,810 Direct	+97.62%	Acquired	(price as of 2026-08-20)
March 12, 2018	ATEC	A	50,000	—	—	50,000 Direct	—	Acquired	(price as of 2026-08-20)
March 12, 2018	ATEC	A	50,000	—	—	50,000 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
July 30, 2018	ATEC	Employee Stock Option (right to buy)	Common Stock (71,006)	$2.69	July 30, 2028	71,006	Acquired
March 12, 2018	ATEC	Employee Stock Option (right to buy)	Common Stock (50,000)	$3.30	March 11, 2028	50,000	Acquired

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

Initial ownership (Form 3) 1 holding

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

Date	Ticker	Security	Shares	Ownership
March 14, 2018	ATEC	No securities are beneficially owned	0	Direct