Julia A Houston

Insider

First SEC filing: Nov. 13, 2017 · Latest: Nov. 13, 2017

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

EFX selling May 31, 2024

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 65 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

65 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Feb. 25, 2026	EFX	A	11,152	—	—	28,598 Direct	+63.92%	Acquired	(price as of 2026-08-20)
Feb. 10, 2026	EFX	A	4,119	—	—	20,060 Direct	+25.84%	Acquired	(price as of 2026-08-20)
Feb. 10, 2026	EFX	F	2,614	$202.71	$529,884	17,446 Direct	-13.03%	Disposed	-4.5% (price as of 2026-08-20)
Nov. 14, 2025	EFX	F	260	$204.86	$53,264	15,927 Direct	-1.61%	Disposed	-5.5% (price as of 2026-08-20)
May 1, 2025	EFX	A	720	—	—	16,163 Direct	+4.66%	Acquired	(price as of 2026-08-20)
May 1, 2025	EFX	A	2,312	—	—	2,312 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 11, 2025	EFX	A	1,865	—	—	16,830 Direct	+12.46%	Acquired	(price as of 2026-08-20)
Feb. 11, 2025	EFX	F	1,396	$253.00	$353,188	15,434 Direct	-8.29%	Disposed	-23.5% (price as of 2026-08-20)
Feb. 10, 2025	EFX	A	2,076	—	—	14,965 Direct	+16.11%	Acquired	(price as of 2026-08-20)
Feb. 10, 2025	EFX	A	6,670	—	—	6,670 Direct	—	Acquired	(price as of 2026-08-20)
July 29, 2024	EFX	M	4,832	$191.44	$925,038	16,156 Direct	+42.67%	Acquired	1.1% (price as of 2026-08-20)
July 29, 2024	EFX	M	3,830	$175.48	$672,088	19,986 Direct	+23.71%	Acquired	10.3% (price as of 2026-08-20)
July 29, 2024	EFX	F	7,111	$273.60	$1,945,570	12,875 Direct	-35.58%	Disposed	-29.2% (price as of 2026-08-20)
July 29, 2024	EFX	M	3,830	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
July 29, 2024	EFX	M	4,832	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 31, 2024	EFX	M 10b5-1	4,815	$149.53	$719,987	16,148 Direct	+42.49%	Acquired	29.5% (price as of 2026-08-20)
May 31, 2024	EFX	S 10b5-1	108	$230.04	$24,844	16,040 Direct	-0.67%	Disposed	-15.8% (price as of 2026-08-20)
May 31, 2024	EFX	S 10b5-1	109	$231.04	$25,183	15,931 Direct	-0.68%	Disposed	-16.2% (price as of 2026-08-20)
May 31, 2024	EFX	S 10b5-1	1,647	$228.97	$377,114	14,284 Direct	-10.34%	Disposed	-15.5% (price as of 2026-08-20)
May 31, 2024	EFX	S 10b5-1	2,951	$228.29	$673,684	11,333 Direct	-20.66%	Disposed	-15.2% (price as of 2026-08-20)
May 31, 2024	EFX	M 10b5-1	4,815	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 24, 2024	EFX	M 10b5-1	4,280	$149.53	$639,988	15,613 Direct	+37.77%	Acquired	29.5% (price as of 2026-08-20)
May 24, 2024	EFX	S 10b5-1	136	$237.92	$32,357	15,477 Direct	-0.87%	Disposed	-18.6% (price as of 2026-08-20)
May 24, 2024	EFX	S 10b5-1	311	$235.58	$73,265	15,166 Direct	-2.01%	Disposed	-17.8% (price as of 2026-08-20)
May 24, 2024	EFX	S 10b5-1	614	$240.05	$147,391	14,552 Direct	-4.05%	Disposed	-19.4% (price as of 2026-08-20)
May 24, 2024	EFX	S 10b5-1	712	$236.86	$168,644	13,840 Direct	-4.89%	Disposed	-18.3% (price as of 2026-08-20)
May 24, 2024	EFX	S 10b5-1	2,507	$239.20	$599,674	11,333 Direct	-18.11%	Disposed	-19.1% (price as of 2026-08-20)
May 24, 2024	EFX	M 10b5-1	4,280	—	—	4,815 Direct	-47.06%	Disposed	(price as of 2026-08-20)
Feb. 12, 2024	EFX	A	2,463	—	—	12,909 Direct	+23.58%	Acquired	(price as of 2026-08-20)
Feb. 12, 2024	EFX	F	1,599	$255.78	$408,992	11,310 Direct	-12.39%	Disposed	-24.3% (price as of 2026-08-20)
Feb. 9, 2024	EFX	A	1,706	—	—	10,446 Direct	+19.52%	Acquired	(price as of 2026-08-20)
Feb. 9, 2024	EFX	A	5,484	—	—	5,484 Direct	—	Acquired	(price as of 2026-08-20)
Nov. 20, 2023	EFX	S 10b5-1	118	$205.36	$24,232	10,616 Direct	-1.10%	Disposed	-5.7% (price as of 2026-08-20)
Nov. 20, 2023	EFX	S 10b5-1	215	$209.81	$45,109	10,401 Direct	-2.03%	Disposed	-7.7% (price as of 2026-08-20)
Nov. 20, 2023	EFX	S 10b5-1	255	$207.91	$53,017	10,146 Direct	-2.45%	Disposed	-6.9% (price as of 2026-08-20)
Nov. 20, 2023	EFX	S 10b5-1	264	$206.85	$54,608	9,882 Direct	-2.60%	Disposed	-6.4% (price as of 2026-08-20)
Nov. 20, 2023	EFX	S 10b5-1	1,148	$209.13	$240,081	8,734 Direct	-11.62%	Disposed	-7.4% (price as of 2026-08-20)
Nov. 15, 2023	EFX	M 10b5-1	7,543	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Nov. 15, 2023	EFX	M 10b5-1	3,378	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Nov. 15, 2023	EFX	M 10b5-1	6,238	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Nov. 15, 2023	EFX	M 10b5-1	4,326	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Nov. 15, 2023	EFX	S 10b5-1	5,403	$201.03	$1,086,165	10,734 Direct	-33.48%	Disposed	-3.7% (price as of 2026-08-20)
Nov. 15, 2023	EFX	S 10b5-1	2,577	$200.13	$515,735	16,137 Direct	-13.77%	Disposed	-3.3% (price as of 2026-08-20)
Nov. 15, 2023	EFX	S 10b5-1	10,114	$199.02	$2,012,888	18,714 Direct	-35.08%	Disposed	-2.7% (price as of 2026-08-20)
Nov. 15, 2023	EFX	S 10b5-1	2,902	$198.36	$575,641	28,828 Direct	-9.15%	Disposed	-2.4% (price as of 2026-08-20)
Nov. 15, 2023	EFX	S 10b5-1	265	$196.77	$52,144	31,730 Direct	-0.83%	Disposed	-1.6% (price as of 2026-08-20)
Nov. 15, 2023	EFX	S 10b5-1	224	$195.02	$43,684	31,995 Direct	-0.70%	Disposed	-0.7% (price as of 2026-08-20)
Nov. 15, 2023	EFX	M 10b5-1	7,543	$138.45	$1,044,328	32,219 Direct	+30.57%	Acquired	39.8% (price as of 2026-08-20)
Nov. 15, 2023	EFX	M 10b5-1	3,378	$134.58	$454,611	24,676 Direct	+15.86%	Acquired	43.8% (price as of 2026-08-20)
Nov. 15, 2023	EFX	M 10b5-1	6,238	$127.37	$794,534	21,298 Direct	+41.42%	Acquired	52.0% (price as of 2026-08-20)
Nov. 15, 2023	EFX	M 10b5-1	4,326	$121.35	$524,960	15,060 Direct	+40.30%	Acquired	59.5% (price as of 2026-08-20)
Feb. 21, 2023	EFX	A	2,663	—	—	12,420 Direct	+27.29%	Acquired	(price as of 2026-08-20)
Feb. 21, 2023	EFX	F	1,709	$203.81	$348,311	10,711 Direct	-13.76%	Disposed	-5.0% (price as of 2026-08-20)
Feb. 10, 2023	EFX	A	1,819	—	—	9,757 Direct	+22.92%	Acquired	(price as of 2026-08-20)
Feb. 10, 2023	EFX	A	5,801	—	—	5,801 Direct	—	Acquired	(price as of 2026-08-20)
Oct. 26, 2022	EFX	S 10b5-1	231	$162.24	$37,477	12,701 Direct	-1.79%	Disposed	19.3% (price as of 2026-08-20)
Oct. 26, 2022	EFX	S 10b5-1	236	$167.71	$39,580	12,465 Direct	-1.86%	Disposed	15.4% (price as of 2026-08-20)
Oct. 26, 2022	EFX	S 10b5-1	308	$163.30	$50,296	12,157 Direct	-2.47%	Disposed	18.5% (price as of 2026-08-20)
Oct. 26, 2022	EFX	S 10b5-1	1,125	$164.55	$185,119	11,032 Direct	-9.25%	Disposed	17.6% (price as of 2026-08-20)
Oct. 26, 2022	EFX	S 10b5-1	1,496	$167.02	$249,862	9,536 Direct	-13.56%	Disposed	15.9% (price as of 2026-08-20)
Oct. 26, 2022	EFX	S 10b5-1	1,604	$165.39	$265,286	7,932 Direct	-16.82%	Disposed	17.1% (price as of 2026-08-20)
Feb. 22, 2022	EFX	A	8,408	—	—	17,333 Direct	+94.21%	Acquired	(price as of 2026-08-20)
Feb. 22, 2022	EFX	F	4,421	$212.24	$938,313	12,912 Direct	-25.51%	Disposed	-8.8% (price as of 2026-08-20)
Feb. 11, 2022	EFX	A	1,223	—	—	8,925 Direct	+15.88%	Acquired	(price as of 2026-08-20)
Feb. 11, 2022	EFX	A	4,880	—	—	4,880 Direct	—	Acquired	(price as of 2026-08-20)
Aug. 20, 2021	EFX	M 10b5-1	6,038	$105.99	$639,968	13,730 Direct	+78.50%	Acquired	82.6% (price as of 2026-08-20)
Aug. 20, 2021	EFX	M 10b5-1	4,600	$97.18	$447,028	18,330 Direct	+33.50%	Acquired	99.2% (price as of 2026-08-20)
Aug. 20, 2021	EFX	M 10b5-1	1,730	$73.40	$126,982	20,060 Direct	+9.44%	Acquired	163.7% (price as of 2026-08-20)
Aug. 20, 2021	EFX	S 10b5-1	360	$257.97	$92,869	19,700 Direct	-1.79%	Disposed	-25.0% (price as of 2026-08-20)
Aug. 20, 2021	EFX	S 10b5-1	4,921	$256.16	$1,260,563	14,779 Direct	-24.98%	Disposed	-24.4% (price as of 2026-08-20)
Aug. 20, 2021	EFX	S 10b5-1	7,087	$257.12	$1,822,209	7,692 Direct	-47.95%	Disposed	-24.7% (price as of 2026-08-20)
Aug. 20, 2021	EFX	M 10b5-1	6,038	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Aug. 20, 2021	EFX	M 10b5-1	4,600	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Aug. 20, 2021	EFX	M 10b5-1	1,730	—	—	2,892 Direct	-37.43%	Disposed	(price as of 2026-08-20)
May 24, 2021	EFX	M	1,056	$73.40	$77,510	8,342 Direct	+14.49%	Acquired	163.7% (price as of 2026-08-20)
May 24, 2021	EFX	F	656	$237.49	$155,793	7,686 Direct	-7.86%	Disposed	-18.5% (price as of 2026-08-20)
May 24, 2021	EFX	M	1,056	—	—	4,622 Direct	-18.60%	Disposed	(price as of 2026-08-20)
March 5, 2021	EFX	A	3,674	—	—	9,383 Direct	+64.35%	Acquired	(price as of 2026-08-20)
March 5, 2021	EFX	F	2,106	$169.75	$357,494	7,277 Direct	-22.44%	Disposed	14.0% (price as of 2026-08-20)
Feb. 12, 2021	EFX	A	1,058	—	—	5,709 Direct	+22.75%	Acquired	(price as of 2026-08-20)
Feb. 12, 2021	EFX	A	4,234	—	—	4,234 Direct	—	Acquired	(price as of 2026-08-20)
Sept. 29, 2020	EFX	F	675	$157.84	$106,542	4,643 Direct	-12.69%	Disposed	22.6% (price as of 2026-08-20)
July 29, 2020	EFX	S 10b5-1	234	$163.21	$38,191	8,072 Direct	-2.82%	Disposed	18.6% (price as of 2026-08-20)
July 29, 2020	EFX	S 10b5-1	1,167	$164.47	$191,936	6,905 Direct	-14.46%	Disposed	17.7% (price as of 2026-08-20)
July 29, 2020	EFX	S 10b5-1	1,599	$165.27	$264,267	5,306 Direct	-23.16%	Disposed	17.1% (price as of 2026-08-20)
Feb. 21, 2020	EFX	A	1,097	—	—	8,281 Direct	+15.27%	Acquired	(price as of 2026-08-20)
Feb. 21, 2020	EFX	A	4,832	—	—	4,832 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 21, 2020	EFX	A	3,830	—	—	3,830 Direct	—	Acquired	(price as of 2026-08-20)
Sept. 30, 2019	EFX	F	336	$140.67	$47,265	7,173 Direct	-4.47%	Disposed	37.6% (price as of 2026-08-20)
March 1, 2019	EFX	F	203	$110.46	$22,423	7,474 Direct	-2.64%	Disposed	75.3% (price as of 2026-08-20)
Feb. 22, 2019	EFX	A	1,354	—	—	7,677 Direct	+21.41%	Acquired	(price as of 2026-08-20)
Feb. 22, 2019	EFX	A	9,095	—	—	9,095 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 22, 2019	EFX	A	7,543	—	—	7,543 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 22, 2019	EFX	A	6,238	—	—	6,238 Direct	—	Acquired	(price as of 2026-08-20)
Sept. 30, 2018	EFX	F	659	$130.79	$86,191	6,313 Direct	-9.45%	Disposed	48.0% (price as of 2026-08-20)
March 5, 2018	EFX	A	1,082	—	—	6,947 Direct	+18.45%	Acquired	(price as of 2026-08-20)
March 5, 2018	EFX	A	4,326	—	—	4,326 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
May 1, 2025	EFX	Stock Option/Right to Buy	Common Stock (2,312)	$260.61	May 1, 2035	2,312	Acquired
Feb. 10, 2025	EFX	Stock Option/Right to Buy	Common Stock (6,670)	$252.90	Feb. 10, 2035	6,670	Acquired
July 29, 2024	EFX	Stock Option/Right to Buy	Common Stock (3,830)	$175.48	Feb. 21, 2026	3,830	Disposed
July 29, 2024	EFX	Stock Option/Right to Buy	Common Stock (4,832)	$191.44	Feb. 21, 2026	4,832	Disposed
May 31, 2024	EFX	Stock Option/Right to Buy	Common Stock (4,815)	$149.53	Feb. 22, 2025	4,815	Disposed
May 24, 2024	EFX	Stock Option/Right to Buy	Common Stock (4,280)	$149.53	Feb. 22, 2025	4,280	Disposed
Feb. 9, 2024	EFX	Stock Option/Right to Buy	Common Stock (5,484)	$249.18	Feb. 9, 2034	5,484	Acquired
Nov. 15, 2023	EFX	Stock Option/Right to Buy	Common Stock (7,543)	$138.45	Feb. 22, 2025	7,543	Disposed
Nov. 15, 2023	EFX	Stock Option/Right to Buy	Common Stock (3,378)	$134.58	Sept. 30, 2026	3,378	Disposed
Nov. 15, 2023	EFX	Stock Option/Right to Buy	Common Stock (6,238)	$127.37	Feb. 22, 2025	6,238	Disposed
Nov. 15, 2023	EFX	Stock Option/Right to Buy	Common Stock (4,326)	$121.35	March 5, 2028	4,326	Disposed
Feb. 10, 2023	EFX	Stock Option/Right to Buy	Common Stock (5,801)	$206.16	Feb. 10, 2033	5,801	Acquired
Feb. 11, 2022	EFX	Stock Option/Right to Buy	Common Stock (4,880)	$225.00	Feb. 11, 2032	4,880	Acquired
Aug. 20, 2021	EFX	Stock Option/Right to Buy	Common Stock (6,038)	$105.99	Sept. 29, 2027	6,038	Disposed
Aug. 20, 2021	EFX	Stock Option/Right to Buy	Common Stock (4,600)	$97.18	Sept. 30, 2025	4,600	Disposed
Aug. 20, 2021	EFX	Stock Option/Right to Buy	Common Stock (1,730)	$73.40	Oct. 1, 2024	1,730	Disposed
May 24, 2021	EFX	Stock Option/Right to Buy	Common Stock (1,056)	$73.40	Oct. 1, 2024	1,056	Disposed
Feb. 12, 2021	EFX	Stock Option/Right to Buy	Common Stock (4,234)	$177.19	Feb. 12, 2031	4,234	Acquired
Feb. 21, 2020	EFX	Stock Option/Right to Buy	Common Stock (4,832)	$191.44	Feb. 21, 2026	4,832	Acquired
Feb. 21, 2020	EFX	Stock Option/Right to Buy	Common Stock (3,830)	$175.48	Feb. 21, 2026	3,830	Acquired
Feb. 22, 2019	EFX	Stock Option/Right to Buy [F3]	Common Stock (9,095)	$149.53	Feb. 22, 2025	9,095	Acquired
Feb. 22, 2019	EFX	Stock Option/Right to Buy [F3]	Common Stock (7,543)	$138.45	Feb. 22, 2025	7,543	Acquired
Feb. 22, 2019	EFX	Stock Option/Right to Buy [F3]	Common Stock (6,238)	$127.37	Feb. 22, 2025	6,238	Acquired
March 5, 2018	EFX	Stock Option/Right to Buy	Common Stock (4,326)	$121.35	March 5, 2028	4,326	Acquired

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

Initial ownership (Form 3) 5 holdings

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

Date	Ticker	Security	Shares	Ownership
Nov. 13, 2017	EFX	Common Stock	5,861	Direct
Nov. 13, 2017	EFX	Stock Option/Right to Buy→ Common Stock (5,678)	5,678	Direct
Nov. 13, 2017	EFX	Stock Option/Right to Buy→ Common Stock (4,600)	4,600	Direct
Nov. 13, 2017	EFX	Stock Option/Right to Buy→ Common Stock (6,038)	6,038	Direct
Nov. 13, 2017	EFX	Stock Option/Right to Buy→ Common Stock (3,378)	3,378	Direct