Erin K Gattis

Insider

First SEC filing: Oct. 6, 2011 · Latest: Oct. 6, 2011

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.
Initial holdings The stakes this person held when they first started reporting.

Insider at

ARCB selling Aug. 4, 2026

Insider transactions

0 buys (P) 1 sells (S) Net: $-862,820 + 35 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

35 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Aug. 4, 2026	ARCB	S	6,163	$140.00	$862,820	24,286 Direct	-20.24%	Disposed	0.0% (price as of 2026-08-21)
May 7, 2025	ARCB	F	144	$58.93	$8,486	29,544 Direct	-0.49%	Disposed	137.5% (price as of 2026-08-21)
May 6, 2025	ARCB	F	264	$58.54	$15,455	26,438 Direct	-0.99%	Disposed	139.1% (price as of 2026-08-21)
May 6, 2025	ARCB	A	3,250	—	—	29,688 Direct	+12.29%	Acquired	(price as of 2026-08-21)
May 5, 2025	ARCB	F	245	$60.96	$14,935	26,702 Direct	-0.91%	Disposed	129.6% (price as of 2026-08-21)
May 12, 2024	ARCB	F	4,288	$117.40	$503,411	26,947 Direct	-13.73%	Disposed	19.2% (price as of 2026-08-21)
May 11, 2024	ARCB	F	1,006	$117.40	$118,104	31,235 Direct	-3.12%	Disposed	19.2% (price as of 2026-08-21)
May 7, 2024	ARCB	A	1,525	—	—	32,241 Direct	+4.96%	Acquired	(price as of 2026-08-21)
May 6, 2024	ARCB	F	282	$117.99	$33,273	30,716 Direct	-0.91%	Disposed	18.6% (price as of 2026-08-21)
May 5, 2024	ARCB	F	249	$114.85	$28,598	30,998 Direct	-0.80%	Disposed	21.9% (price as of 2026-08-21)
March 1, 2024	ARCB	S	1,276	$141.81	$180,950	32,971 Direct	-3.73%	Disposed	-1.3% (price as of 2026-08-21)
March 1, 2024	ARCB	S	724	$141.18	$102,214	32,247 Direct	-2.20%	Disposed	-0.9% (price as of 2026-08-21)
March 1, 2024	ARCB	G	1,000	—	—	31,247 Direct	-3.10%	Disposed	(price as of 2026-08-21)
Aug. 2, 2023	ARCB	S	799	$112.97	$90,263	34,247 Direct	-2.28%	Disposed	23.9% (price as of 2026-08-21)
Aug. 2, 2023	ARCB	S	1,504	$113.68	$170,975	35,046 Direct	-4.11%	Disposed	23.1% (price as of 2026-08-21)
Aug. 2, 2023	ARCB	S	1,150	$114.97	$132,216	36,550 Direct	-3.05%	Disposed	21.7% (price as of 2026-08-21)
Aug. 2, 2023	ARCB	S	2,765	$116.15	$321,155	37,700 Direct	-6.83%	Disposed	20.5% (price as of 2026-08-21)
Aug. 2, 2023	ARCB	S	1,253	$117.29	$146,964	40,465 Direct	-3.00%	Disposed	19.3% (price as of 2026-08-21)
May 9, 2023	ARCB	F	2,890	$86.70	$250,563	41,718 Direct	-6.48%	Disposed	61.4% (price as of 2026-08-21)
May 6, 2023	ARCB	F	273	$87.82	$23,975	44,608 Direct	-0.61%	Disposed	59.4% (price as of 2026-08-21)
May 5, 2023	ARCB	A	2,600	—	—	44,881 Direct	+6.15%	Acquired	(price as of 2026-08-21)
Aug. 22, 2022	ARCB	G	1,200	—	—	42,281 Direct	-2.76%	Disposed	(price as of 2026-08-21)
Aug. 1, 2022	ARCB	F	1,794	$87.86	$157,621	43,481 Direct	-3.96%	Disposed	59.3% (price as of 2026-08-21)
May 12, 2022	ARCB	F	3,529	$74.30	$262,205	45,275 Direct	-7.23%	Disposed	88.4% (price as of 2026-08-21)
May 6, 2022	ARCB	A	2,800	—	—	48,804 Direct	+6.09%	Acquired	(price as of 2026-08-21)
Nov. 11, 2021	ARCB	S	2,765	$110.02	$304,205	46,004 Direct	-5.67%	Disposed	27.2% (price as of 2026-08-21)
Nov. 11, 2021	ARCB	S	2,500	$109.36	$273,400	48,769 Direct	-4.88%	Disposed	28.0% (price as of 2026-08-21)
May 11, 2021	ARCB	A	2,300	$87.87	$202,101	51,269 Direct	+4.70%	Acquired	59.3% (price as of 2026-08-21)
May 6, 2021	ARCB	F	2,835	$86.58	$245,454	48,969 Direct	-5.47%	Disposed	61.6% (price as of 2026-08-21)
Feb. 16, 2021	ARCB	G	1,448	—	—	51,804 Direct	-2.72%	Disposed	(price as of 2026-08-21)
May 12, 2020	ARCB	A	9,800	—	—	53,252 Direct	+22.55%	Acquired	(price as of 2026-08-21)
May 11, 2020	ARCB	F	1,299	$21.01	$27,292	43,452 Direct	-2.90%	Disposed	566.1% (price as of 2026-08-21)
May 9, 2019	ARCB	A	6,600	—	—	44,751 Direct	+17.30%	Acquired	(price as of 2026-08-21)
May 8, 2019	ARCB	F	1,250	$28.88	$36,100	38,151 Direct	-3.17%	Disposed	384.6% (price as of 2026-08-21)
Nov. 1, 2018	ARCB	F	1,812	$36.90	$66,863	39,401 Direct	-4.40%	Disposed	279.3% (price as of 2026-08-21)
Aug. 1, 2018	ARCB	A	4,000	—	—	41,213 Direct	+10.75%	Acquired	(price as of 2026-08-21)
May 12, 2017	ARCB	A	8,400	—	—	37,213 Direct	+29.15%	Acquired	(price as of 2026-08-21)
May 4, 2017	ARCB	F	2,735	$26.25	$71,794	28,813 Direct	-8.67%	Disposed	433.1% (price as of 2026-08-21)
May 6, 2016	ARCB	A	8,100	—	—	31,548 Direct	+34.54%	Acquired	(price as of 2026-08-21)
May 2, 2016	ARCB	F	376	$17.84	$6,708	23,448 Direct	-1.58%	Disposed	684.4% (price as of 2026-08-21)
July 28, 2015	ARCB	F	376	$30.69	$11,539	23,824 Direct	-1.55%	Disposed	356.0% (price as of 2026-08-21)
May 11, 2015	ARCB	A	4,200	—	—	24,200 Direct	+21.00%	Acquired	(price as of 2026-08-21)
May 8, 2014	ARCB	A	4,000	—	—	20,000 Direct	+25.00%	Acquired	(price as of 2026-08-21)
Nov. 1, 2013	ARCB	A	5,800	—	—	16,000 Direct	+56.86%	Acquired	(price as of 2026-08-21)
May 4, 2012	ARCB	A	8,000	—	—	10,200 Direct	+363.64%	Acquired	(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.

Initial ownership (Form 3) 2 holdings

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

Date	Ticker	Security	Shares	Ownership
Oct. 6, 2011	ARCB	Common Stock, par value $0.01 per share	2,200	Direct
Oct. 6, 2011	ARCB	Common Stock, par value $0.01 per share	118	Indirect