Donald Arthur Seibel Jr

Insider

First SEC filing: July 6, 2017 · Latest: June 17, 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.
Initial holdings The stakes this person held when they first started reporting.

Insider at

ACNB selling Aug. 7, 2026

Insider transactions

0 buys (P) 1 sells (S) Net: $-96,525 + 31 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

31 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Aug. 7, 2026	ACNB	S	1,500	$64.35	$96,525	5,312 Direct	-22.02%	Disposed	-0.5% (price as of 2026-08-21)
June 15, 2026	ACNB	A	243	$56.51	$13,732	6,812 Direct	+3.70%	Acquired	13.3% (price as of 2026-08-21)
June 13, 2025	ACNB	A	192	$40.96	$7,864	10,709 Direct	+1.83%	Acquired	56.3% (price as of 2026-08-21)
March 14, 2025	ACNB	A	191	$41.28	$7,884	10,472 Direct	+1.86%	Acquired	55.0% (price as of 2026-08-21)
Dec. 13, 2024	ACNB	A	173	$45.55	$7,880	10,241 Direct	+1.72%	Acquired	40.5% (price as of 2026-08-21)
Sept. 13, 2024	ACNB	A	187	$42.10	$7,873	10,033 Direct	+1.90%	Acquired	52.0% (price as of 2026-08-21)
June 14, 2024	ACNB	A	148	$30.72	$4,547	9,810 Direct	+1.53%	Acquired	108.3% (price as of 2026-08-21)
March 15, 2024	ACNB	A	126	$35.28	$4,445	9,661 Direct	+1.32%	Acquired	81.4% (price as of 2026-08-21)
Dec. 15, 2023	ACNB	A	94	$47.04	$4,422	9,536 Direct	+1.00%	Acquired	36.1% (price as of 2026-08-21)
Sept. 15, 2023	ACNB	A	129	$33.10	$4,270	9,442 Direct	+1.39%	Acquired	93.4% (price as of 2026-08-21)
June 15, 2023	ACNB	A	127	$33.38	$4,239	9,313 Direct	+1.38%	Acquired	91.7% (price as of 2026-08-21)
March 15, 2023	ACNB	A	125	$31.92	$3,990	9,186 Direct	+1.38%	Acquired	100.5% (price as of 2026-08-21)
Dec. 15, 2022	ACNB	A	180	$37.86	$6,815	9,061 Direct	+2.03%	Acquired	69.0% (price as of 2026-08-21)
Nov. 23, 2022	ACNB	S	89	$39.18	$3,487	8,880 Direct	-0.99%	Disposed	63.3% (price as of 2026-08-21)
Nov. 23, 2022	ACNB	S	11,814	$38.95	$460,155	8,969 Direct	-56.84%	Disposed	64.3% (price as of 2026-08-21)
Sept. 15, 2022	ACNB	A	176	$32.72	$5,759	20,783 Direct	+0.85%	Acquired	95.6% (price as of 2026-08-21)
June 15, 2022	ACNB	A	171	$33.56	$5,739	20,579 Direct	+0.84%	Acquired	90.7% (price as of 2026-08-21)
March 15, 2022	ACNB	A	450	$32.74	$14,733	20,381 Direct	+2.26%	Acquired	95.5% (price as of 2026-08-21)
March 15, 2022	ACNB	A	176	$32.74	$5,762	19,931 Direct	+0.89%	Acquired	95.5% (price as of 2026-08-21)
Dec. 15, 2021	ACNB	A	98	$29.36	$2,877	19,725 Direct	+0.50%	Acquired	118.0% (price as of 2026-08-21)
Sept. 15, 2021	ACNB	A	104	$27.63	$2,874	19,603 Direct	+0.53%	Acquired	131.6% (price as of 2026-08-21)
June 15, 2021	ACNB	A	102	$28.27	$2,884	19,477 Direct	+0.53%	Acquired	126.4% (price as of 2026-08-21)
March 15, 2021	ACNB	A	89	$32.15	$2,861	19,352 Direct	+0.46%	Acquired	99.1% (price as of 2026-08-21)
Dec. 15, 2020	ACNB	A	104	$27.58	$2,868	19,245 Direct	+0.54%	Acquired	132.1% (price as of 2026-08-21)
Sept. 15, 2020	ACNB	A	133	$21.62	$2,875	19,121 Direct	+0.70%	Acquired	196.0% (price as of 2026-08-21)
June 15, 2020	ACNB	A	500	$25.30	$12,650	18,965 Direct	+2.71%	Acquired	153.0% (price as of 2026-08-21)
June 15, 2020	ACNB	A	114	$25.30	$2,884	18,465 Direct	+0.62%	Acquired	153.0% (price as of 2026-08-21)
March 13, 2020	ACNB	A	124	$23.27	$2,885	18,338 Direct	+0.68%	Acquired	175.0% (price as of 2026-08-21)
Dec. 13, 2019	ACNB	A	80	$35.94	$2,875	18,201 Direct	+0.44%	Acquired	78.1% (price as of 2026-08-21)
Sept. 13, 2019	ACNB	A	81	$35.48	$2,874	18,113 Direct	+0.45%	Acquired	80.4% (price as of 2026-08-21)
June 14, 2019	ACNB	A	500	$36.47	$18,235	18,024 Direct	+2.85%	Acquired	75.5% (price as of 2026-08-21)
June 14, 2019	ACNB	A	62	$36.47	$2,261	17,524 Direct	+0.36%	Acquired	75.5% (price as of 2026-08-21)
March 15, 2019	ACNB	A	61	$37.10	$2,263	17,459 Direct	+0.35%	Acquired	72.5% (price as of 2026-08-21)
Feb. 25, 2019	ACNB	S	310	$41.00	$12,710	17,396 Direct	-1.75%	Disposed	56.1% (price as of 2026-08-21)
Dec. 20, 2018	ACNB	S	700	$39.50	$27,650	17,706 Direct	-3.80%	Disposed	62.0% (price as of 2026-08-21)
Dec. 20, 2018	ACNB	S	700	$39.50	$27,650	17,706 Direct	-3.80%	Disposed	62.0% (price as of 2026-08-21)
Dec. 19, 2018	ACNB	S	1,900	$37.50	$71,250	18,406 Direct	-9.36%	Disposed	70.7% (price as of 2026-08-21)
Dec. 19, 2018	ACNB	S	100	$37.77	$3,777	20,306 Direct	-0.49%	Disposed	69.4% (price as of 2026-08-21)
Dec. 19, 2018	ACNB	S	8,000	$38.00	$304,000	20,406 Direct	-28.16%	Disposed	68.4% (price as of 2026-08-21)
Dec. 19, 2018	ACNB	S	2,000	$38.50	$77,000	28,406 Direct	-6.58%	Disposed	66.2% (price as of 2026-08-21)
Dec. 19, 2018	ACNB	S	1,900	$37.50	$71,250	18,406 Direct	-9.36%	Disposed	70.7% (price as of 2026-08-21)
Dec. 19, 2018	ACNB	S	100	$37.77	$3,777	20,306 Direct	-0.49%	Disposed	69.4% (price as of 2026-08-21)
Dec. 19, 2018	ACNB	S	8,000	$38.00	$304,000	20,406 Direct	-28.16%	Disposed	68.4% (price as of 2026-08-21)
Dec. 19, 2018	ACNB	S	2,000	$38.50	$77,000	28,406 Direct	-6.58%	Disposed	66.2% (price as of 2026-08-21)
Dec. 14, 2018	ACNB	A	62	$36.30	$2,251	30,406 Direct	+0.20%	Acquired	76.3% (price as of 2026-08-21)
Sept. 14, 2018	ACNB	P	57	$39.38	$2,245	30,341 Direct	+0.19%	Acquired	62.5% (price as of 2026-08-21)
June 15, 2018	ACNB	P	71	$31.62	$2,245	30,282 Direct	+0.24%	Acquired	102.4% (price as of 2026-08-21)
March 15, 2018	ACNB	P	77	$29.38	$2,262	30,210 Direct	+0.26%	Acquired	117.8% (price as of 2026-08-21)
Dec. 15, 2017	ACNB	P	78	$28.88	$2,253	30,132 Direct	+0.26%	Acquired	121.6% (price as of 2026-08-21)
Sept. 15, 2017	ACNB	P	40	$26.98	$1,079	9,693 Indirect	+0.41%	Acquired	137.2% (price as of 2026-08-21)
Sept. 15, 2017	ACNB	P	83	$26.98	$2,239	30,053 Direct	+0.28%	Acquired	137.2% (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) 1 holding

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

Date	Ticker	Security	Shares	Ownership
July 6, 2017	ACNB	ACNB Corporation Common	39,552	Direct