Christopher D'Ambrosio

Insider

First SEC filing: June 9, 2021 · Latest: June 9, 2021

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

ADP selling April 14, 2026

Insider transactions

0 buys (P) 5 sells (S) Net: $-654,496 + 47 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

47 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Aug. 5, 2026	ADP	A	2,601	—	—	10,970 Direct	+31.08%	Acquired	(price as of 2026-08-19)
April 14, 2026	ADP	S 10b5-1	543	$195.74	$106,287	8,369 Direct	-6.09%	Disposed	41.4% (price as of 2026-08-19)
March 16, 2026	ADP	S 10b5-1	543	$208.45	$113,188	8,912 Direct	-5.74%	Disposed	32.8% (price as of 2026-08-19)
Feb. 17, 2026	ADP	S 10b5-1	543	$212.43	$115,349	9,455 Direct	-5.43%	Disposed	30.3% (price as of 2026-08-19)
Jan. 13, 2026	ADP	S 10b5-1	543	$262.29	$142,423	9,998 Direct	-5.15%	Disposed	5.5% (price as of 2026-08-19)
Sept. 10, 2025	ADP	S 10b5-1	597	$296.90	$177,249	10,541 Direct	-5.36%	Disposed	-6.8% (price as of 2026-08-19)
Sept. 2, 2025	ADP	F	2,005	$304.05	$609,620	11,138 Direct	-15.26%	Disposed	-9.0% (price as of 2026-08-19)
Sept. 1, 2025	ADP	A	2,265	—	—	13,143 Direct	+20.82%	Acquired	(price as of 2026-08-19)
Aug. 6, 2025	ADP	A	3,387	—	—	10,878 Direct	+45.21%	Acquired	(price as of 2026-08-19)
May 12, 2025	ADP	M	373	$169.84	$63,350	7,737 Direct	+5.07%	Acquired	62.9% (price as of 2026-08-19)
May 12, 2025	ADP	M	226	$146.75	$33,166	7,963 Direct	+2.92%	Acquired	88.6% (price as of 2026-08-19)
May 12, 2025	ADP	S 10b5-1	472	$311.82	$147,179	7,491 Direct	-5.93%	Disposed	-11.3% (price as of 2026-08-19)
May 12, 2025	ADP	M	226	$146.75	$33,166	0 Direct	-100.00%	Disposed	88.6% (price as of 2026-08-19)
May 12, 2025	ADP	M	373	$169.84	$63,350	0 Direct	-100.00%	Disposed	62.9% (price as of 2026-08-19)
April 10, 2025	ADP	M	373	$169.84	$63,350	7,617 Direct	+5.15%	Acquired	62.9% (price as of 2026-08-19)
April 10, 2025	ADP	M	225	$146.75	$33,019	7,842 Direct	+2.95%	Acquired	88.6% (price as of 2026-08-19)
April 10, 2025	ADP	S 10b5-1	478	$293.14	$140,121	7,364 Direct	-6.10%	Disposed	-5.6% (price as of 2026-08-19)
April 10, 2025	ADP	M	225	$146.75	$33,019	226 Direct	-49.89%	Disposed	88.6% (price as of 2026-08-19)
April 10, 2025	ADP	M	373	$169.84	$63,350	373 Direct	-50.00%	Disposed	62.9% (price as of 2026-08-19)
March 10, 2025	ADP	M	373	$169.84	$63,350	7,491 Direct	+5.24%	Acquired	62.9% (price as of 2026-08-19)
March 10, 2025	ADP	M	226	$146.75	$33,166	7,717 Direct	+3.02%	Acquired	88.6% (price as of 2026-08-19)
March 10, 2025	ADP	S 10b5-1	473	$306.20	$144,833	7,244 Direct	-6.13%	Disposed	-9.6% (price as of 2026-08-19)
March 10, 2025	ADP	M	226	$146.75	$33,166	451 Direct	-33.38%	Disposed	88.6% (price as of 2026-08-19)
March 10, 2025	ADP	M	373	$169.84	$63,350	746 Direct	-33.33%	Disposed	62.9% (price as of 2026-08-19)
Feb. 10, 2025	ADP	M	372	$169.84	$63,180	7,364 Direct	+5.32%	Acquired	62.9% (price as of 2026-08-19)
Feb. 10, 2025	ADP	M	225	$146.75	$33,019	7,589 Direct	+3.06%	Acquired	88.6% (price as of 2026-08-19)
Feb. 10, 2025	ADP	S 10b5-1	471	$308.24	$145,181	7,118 Direct	-6.21%	Disposed	-10.2% (price as of 2026-08-19)
Feb. 10, 2025	ADP	M	225	$146.75	$33,019	677 Direct	-24.94%	Disposed	88.6% (price as of 2026-08-19)
Feb. 10, 2025	ADP	M	372	$169.84	$63,180	1,119 Direct	-24.95%	Disposed	62.9% (price as of 2026-08-19)
Sept. 4, 2024	ADP	S 10b5-1	479	$276.00	$132,204	6,992 Direct	-6.41%	Disposed	0.3% (price as of 2026-08-19)
Sept. 3, 2024	ADP	F	1,205	$275.91	$332,472	7,471 Direct	-13.89%	Disposed	0.3% (price as of 2026-08-19)
Sept. 1, 2024	ADP	A	1,341	—	—	8,676 Direct	+18.28%	Acquired	(price as of 2026-08-19)
Aug. 7, 2024	ADP	A	2,562	—	—	7,335 Direct	+53.68%	Acquired	(price as of 2026-08-19)
Sept. 5, 2023	ADP	S 10b5-1	259	$253.90	$65,760	4,772 Direct	-5.15%	Disposed	9.0% (price as of 2026-08-19)
Sept. 1, 2023	ADP	A	816	—	—	5,669 Direct	+16.81%	Acquired	(price as of 2026-08-19)
Sept. 1, 2023	ADP	F	638	$255.75	$163,168	5,031 Direct	-11.25%	Disposed	8.2% (price as of 2026-08-19)
Aug. 3, 2023	ADP	A	1,578	—	—	4,853 Direct	+48.18%	Acquired	(price as of 2026-08-19)
Nov. 7, 2022	ADP	M	315	$107.35	$33,815	3,472 Direct	+9.98%	Acquired	157.8% (price as of 2026-08-19)
Nov. 7, 2022	ADP	M	108	$90.63	$9,788	3,580 Direct	+3.11%	Acquired	205.4% (price as of 2026-08-19)
Nov. 7, 2022	ADP	S 10b5-1	76	$238.23	$18,105	3,504 Direct	-2.12%	Disposed	16.2% (price as of 2026-08-19)
Nov. 7, 2022	ADP	S 10b5-1	228	$238.52	$54,383	3,276 Direct	-6.51%	Disposed	16.0% (price as of 2026-08-19)
Nov. 7, 2022	ADP	M	108	$90.63	$9,788	0 Direct	-100.00%	Disposed	205.4% (price as of 2026-08-19)
Nov. 7, 2022	ADP	M	315	$107.35	$33,815	0 Direct	-100.00%	Disposed	157.8% (price as of 2026-08-19)
Sept. 8, 2022	ADP	S 10b5-1	174	$236.69	$41,184	3,157 Direct	-5.22%	Disposed	16.9% (price as of 2026-08-19)
Sept. 1, 2022	ADP	A	848	—	—	3,695 Direct	+29.79%	Acquired	(price as of 2026-08-19)
Sept. 1, 2022	ADP	F	364	$245.96	$89,529	3,331 Direct	-9.85%	Disposed	12.5% (price as of 2026-08-19)
Aug. 8, 2022	ADP	M	314	$107.35	$33,708	3,038 Direct	+11.53%	Acquired	157.8% (price as of 2026-08-19)
Aug. 8, 2022	ADP	M	107	$90.63	$9,697	3,145 Direct	+3.52%	Acquired	205.4% (price as of 2026-08-19)
Aug. 8, 2022	ADP	S 10b5-1	74	$249.81	$18,486	3,071 Direct	-2.35%	Disposed	10.8% (price as of 2026-08-19)
Aug. 8, 2022	ADP	S 10b5-1	224	$249.62	$55,915	2,847 Direct	-7.29%	Disposed	10.9% (price as of 2026-08-19)
Aug. 8, 2022	ADP	M	107	$90.63	$9,697	108 Direct	-49.77%	Disposed	205.4% (price as of 2026-08-19)
Aug. 8, 2022	ADP	M	314	$107.35	$33,708	315 Direct	-49.92%	Disposed	157.8% (price as of 2026-08-19)
Aug. 3, 2022	ADP	A	1,061	—	—	2,724 Direct	+63.80%	Acquired	(price as of 2026-08-19)
May 9, 2022	ADP	M	314	$107.35	$33,708	1,868 Direct	+20.21%	Acquired	157.8% (price as of 2026-08-19)
May 9, 2022	ADP	M	107	$90.63	$9,697	1,975 Direct	+5.73%	Acquired	205.4% (price as of 2026-08-19)
May 9, 2022	ADP	S 10b5-1	78	$214.15	$16,704	1,897 Direct	-3.95%	Disposed	29.2% (price as of 2026-08-19)
May 9, 2022	ADP	S 10b5-1	234	$214.04	$50,085	1,663 Direct	-12.34%	Disposed	29.3% (price as of 2026-08-19)
May 9, 2022	ADP	M	107	$90.63	$9,697	215 Direct	-33.23%	Disposed	205.4% (price as of 2026-08-19)
May 9, 2022	ADP	M	314	$107.35	$33,708	629 Direct	-33.30%	Disposed	157.8% (price as of 2026-08-19)
Feb. 7, 2022	ADP	M	314	$107.35	$33,708	1,776 Direct	+21.48%	Acquired	157.8% (price as of 2026-08-19)
Feb. 7, 2022	ADP	M	107	$90.63	$9,697	1,883 Direct	+6.02%	Acquired	205.4% (price as of 2026-08-19)
Feb. 7, 2022	ADP	S 10b5-1	81	$207.05	$16,771	1,802 Direct	-4.30%	Disposed	33.7% (price as of 2026-08-19)
Feb. 7, 2022	ADP	S 10b5-1	248	$206.89	$51,309	1,554 Direct	-13.76%	Disposed	33.8% (price as of 2026-08-19)
Feb. 7, 2022	ADP	M	107	$90.63	$9,697	322 Direct	-24.94%	Disposed	205.4% (price as of 2026-08-19)
Feb. 7, 2022	ADP	M	314	$107.35	$33,708	943 Direct	-24.98%	Disposed	157.8% (price as of 2026-08-19)
Sept. 1, 2021	ADP	F	184	$206.86	$38,062	1,462 Direct	-11.18%	Disposed	33.8% (price as of 2026-08-19)
Sept. 1, 2021	ADP	A	5,222	—	—	5,222 Direct	—	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
May 12, 2025	ADP	Stock Option (Right to Buy)	Common Stock (226)	$146.75	Aug. 31, 2028	226	Disposed
May 12, 2025	ADP	Stock Option (Right to Buy)	Common Stock (373)	$169.84	Aug. 31, 2029	373	Disposed
April 10, 2025	ADP	Stock Option (Right to Buy)	Common Stock (225)	$146.75	Aug. 31, 2028	225	Disposed
April 10, 2025	ADP	Stock Option (Right to Buy)	Common Stock (373)	$169.84	Aug. 31, 2029	373	Disposed
March 10, 2025	ADP	Stock Option (Right to Buy)	Common Stock (226)	$146.75	Aug. 31, 2028	226	Disposed
March 10, 2025	ADP	Stock Option (Right to Buy)	Common Stock (373)	$169.84	Aug. 31, 2029	373	Disposed
Feb. 10, 2025	ADP	Stock Option (Right to Buy)	Common Stock (225)	$146.75	Aug. 31, 2028	225	Disposed
Feb. 10, 2025	ADP	Stock Option (Right to Buy)	Common Stock (372)	$169.84	Aug. 31, 2029	372	Disposed
Nov. 7, 2022	ADP	Stock Option (Right to Buy)	Common Stock (108)	$90.63	Aug. 31, 2026	108	Disposed
Nov. 7, 2022	ADP	Stock Option (Right to Buy)	Common Stock (315)	$107.35	Aug. 31, 2027	315	Disposed
Aug. 8, 2022	ADP	Stock Option (Right to Buy)	Common Stock (107)	$90.63	Aug. 31, 2026	107	Disposed
Aug. 8, 2022	ADP	Stock Option (Right to Buy)	Common Stock (314)	$107.35	Aug. 31, 2027	314	Disposed
May 9, 2022	ADP	Stock Option (Right to Buy)	Common Stock (107)	$90.63	Aug. 31, 2026	107	Disposed
May 9, 2022	ADP	Stock Option (Right to Buy)	Common Stock (314)	$107.35	Aug. 31, 2027	314	Disposed
Feb. 7, 2022	ADP	Stock Option (Right to Buy)	Common Stock (107)	$90.63	Aug. 31, 2026	107	Disposed
Feb. 7, 2022	ADP	Stock Option (Right to Buy)	Common Stock (314)	$107.35	Aug. 31, 2027	314	Disposed
Sept. 1, 2021	ADP	Stock Option (Right to Buy)	Common Stock (5,222)	$206.86	Aug. 31, 2031	5,222	Acquired

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

Initial ownership (Form 3) 6 holdings

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

Date	Ticker	Security	Shares	Ownership
June 9, 2021	ADP	Common Stock	1,646	Direct
June 9, 2021	ADP	Stock Option (Right to Buy)→ Common Stock (429)	429	Direct
June 9, 2021	ADP	Stock Option (Right to Buy)→ Common Stock (1,257)	1,257	Direct
June 9, 2021	ADP	Stock Option (Right to Buy)→ Common Stock (1,735)	1,735	Direct
June 9, 2021	ADP	Stock Option (Right to Buy)→ Common Stock (902)	902	Direct
June 9, 2021	ADP	Stock Option (Right to Buy)→ Common Stock (1,491)	1,491	Direct