Dean M Harrison

Insider

First SEC filing: Jan. 5, 2015 · Latest: July 2, 2025

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

NTRSO selling April 3, 2019

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 96 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

96 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
July 1, 2026	NTRSO	A	131	$175.60	$23,004	34,905 Direct	+0.38%	Acquired	-89.5% (price as of 2026-08-19)
June 30, 2026	NTRSO	A	259	$173.84	$45,025	34,774 Direct	+0.75%	Acquired	-89.4% (price as of 2026-08-19)
July 1, 2025	NTRSO	A	146	$127.99	$18,687	32,046 Direct	+0.46%	Acquired	-85.6% (price as of 2026-08-19)
June 30, 2025	NTRSO	A	348	$126.79	$44,123	31,901 Direct	+1.10%	Acquired	-85.5% (price as of 2026-08-19)
April 22, 2025	NTRSO	A	1,902	—	—	31,553 Direct	+6.41%	Acquired	(price as of 2026-08-19)
April 22, 2025	NTRSO	A	61	$89.36	$5,451	29,651 Direct	+0.21%	Acquired	-79.4% (price as of 2026-08-19)
April 1, 2025	NTRSO	A	168	$97.95	$16,456	29,589 Direct	+0.57%	Acquired	-81.2% (price as of 2026-08-19)
March 31, 2025	NTRSO	A	418	$98.65	$41,236	29,421 Direct	+1.44%	Acquired	-81.4% (price as of 2026-08-19)
Jan. 1, 2025	NTRSO	A	160	$102.50	$16,400	29,003 Direct	+0.55%	Acquired	-82.1% (price as of 2026-08-19)
Dec. 31, 2024	NTRSO	A	402	$102.50	$41,205	28,843 Direct	+1.41%	Acquired	-82.1% (price as of 2026-08-19)
Oct. 1, 2024	NTRSO	A	179	$88.72	$15,881	28,440 Direct	+0.63%	Acquired	-79.3% (price as of 2026-08-19)
Sept. 30, 2024	NTRSO	A	458	$90.03	$41,234	28,261 Direct	+1.65%	Acquired	-79.6% (price as of 2026-08-19)
July 1, 2024	NTRSO	A	184	$83.83	$15,425	27,803 Direct	+0.67%	Acquired	-78.1% (price as of 2026-08-19)
June 30, 2024	NTRSO	A	491	$83.98	$41,234	27,619 Direct	+1.81%	Acquired	-78.1% (price as of 2026-08-19)
April 16, 2024	NTRSO	A	1,822	—	—	27,128 Direct	+7.20%	Acquired	(price as of 2026-08-19)
April 16, 2024	NTRSO	A	70	$79.56	$5,569	25,306 Direct	+0.28%	Acquired	-76.9% (price as of 2026-08-19)
April 1, 2024	NTRSO	A	153	$88.44	$13,531	25,236 Direct	+0.61%	Acquired	-79.2% (price as of 2026-08-19)
March 31, 2024	NTRSO	A	464	$88.92	$41,259	25,084 Direct	+1.88%	Acquired	-79.3% (price as of 2026-08-19)
Jan. 1, 2024	NTRSO	A	154	$84.38	$12,995	24,620 Direct	+0.63%	Acquired	-78.2% (price as of 2026-08-19)
Dec. 31, 2023	NTRSO	A	489	$84.38	$41,262	24,465 Direct	+2.04%	Acquired	-78.2% (price as of 2026-08-19)
Oct. 1, 2023	NTRSO	A	179	$69.48	$12,437	23,977 Direct	+0.75%	Acquired	-73.5% (price as of 2026-08-19)
Sept. 30, 2023	NTRSO	A	594	$69.48	$41,271	23,798 Direct	+2.56%	Acquired	-73.5% (price as of 2026-08-19)
July 1, 2023	NTRSO	A	160	$74.14	$11,862	23,204 Direct	+0.69%	Acquired	-75.2% (price as of 2026-08-19)
June 30, 2023	NTRSO	A	556	$74.14	$41,222	23,043 Direct	+2.47%	Acquired	-75.2% (price as of 2026-08-19)
April 25, 2023	NTRSO	A	1,855	—	—	22,487 Direct	+8.99%	Acquired	(price as of 2026-08-19)
April 25, 2023	NTRSO	A	51	$78.16	$3,986	20,632 Direct	+0.25%	Acquired	-76.5% (price as of 2026-08-19)
April 1, 2023	NTRSO	A	118	$88.13	$10,399	20,581 Direct	+0.58%	Acquired	-79.1% (price as of 2026-08-19)
March 31, 2023	NTRSO	A	468	$88.13	$41,245	20,463 Direct	+2.34%	Acquired	-79.1% (price as of 2026-08-19)
Jan. 1, 2023	NTRSO	A	113	$88.49	$9,999	19,995 Direct	+0.57%	Acquired	-79.2% (price as of 2026-08-19)
Dec. 31, 2022	NTRSO	A	466	$88.49	$41,236	19,882 Direct	+2.40%	Acquired	-79.2% (price as of 2026-08-19)
Oct. 1, 2022	NTRSO	A	111	$85.56	$9,497	19,416 Direct	+0.57%	Acquired	-78.5% (price as of 2026-08-19)
Sept. 30, 2022	NTRSO	A	482	$85.56	$41,240	19,305 Direct	+2.56%	Acquired	-78.5% (price as of 2026-08-19)
July 1, 2022	NTRSO	A	87	$97.72	$8,502	18,823 Direct	+0.46%	Acquired	-81.2% (price as of 2026-08-19)
June 30, 2022	NTRSO	A	428	$96.48	$41,293	18,735 Direct	+2.34%	Acquired	-80.9% (price as of 2026-08-19)
April 26, 2022	NTRSO	A	1,343	—	—	18,308 Direct	+7.92%	Acquired	(price as of 2026-08-19)
April 26, 2022	NTRSO	A	30	$107.93	$3,238	16,965 Direct	+0.18%	Acquired	-83.0% (price as of 2026-08-19)
April 1, 2022	NTRSO	A	64	$115.55	$7,395	16,935 Direct	+0.38%	Acquired	-84.1% (price as of 2026-08-19)
March 31, 2022	NTRSO	A	354	$116.45	$41,223	16,871 Direct	+2.14%	Acquired	-84.2% (price as of 2026-08-19)
Jan. 1, 2022	NTRSO	A	60	$119.61	$7,177	16,516 Direct	+0.36%	Acquired	-84.6% (price as of 2026-08-19)
Dec. 31, 2021	NTRSO	A	334	$119.61	$39,950	16,457 Direct	+2.07%	Acquired	-84.6% (price as of 2026-08-19)
Oct. 1, 2021	NTRSO	A	63	$109.23	$6,881	16,122 Direct	+0.39%	Acquired	-83.2% (price as of 2026-08-19)
Sept. 30, 2021	NTRSO	A	371	$107.81	$39,998	16,060 Direct	+2.36%	Acquired	-83.0% (price as of 2026-08-19)
July 1, 2021	NTRSO	A	56	$116.32	$6,514	15,689 Direct	+0.36%	Acquired	-84.2% (price as of 2026-08-19)
June 30, 2021	NTRSO	A	346	$115.62	$40,005	15,633 Direct	+2.26%	Acquired	-84.1% (price as of 2026-08-19)
April 20, 2021	NTRSO	A	1,164	—	—	15,287 Direct	+8.24%	Acquired	(price as of 2026-08-19)
April 20, 2021	NTRSO	A	44	$107.37	$4,724	14,123 Direct	+0.31%	Acquired	-82.9% (price as of 2026-08-19)
April 1, 2021	NTRSO	A	48	$105.63	$5,070	14,079 Direct	+0.34%	Acquired	-82.6% (price as of 2026-08-19)
March 31, 2021	NTRSO	A	381	$105.11	$40,047	14,031 Direct	+2.79%	Acquired	-82.5% (price as of 2026-08-19)
Jan. 1, 2021	NTRSO	A	51	$93.14	$4,750	13,651 Direct	+0.38%	Acquired	-80.3% (price as of 2026-08-19)
Dec. 31, 2020	NTRSO	A	403	$93.14	$37,535	13,600 Direct	+3.05%	Acquired	-80.3% (price as of 2026-08-19)
Oct. 1, 2020	NTRSO	A	56	$77.05	$4,315	13,197 Direct	+0.43%	Acquired	-76.1% (price as of 2026-08-19)
Sept. 30, 2020	NTRSO	A	481	$77.97	$37,504	13,141 Direct	+3.80%	Acquired	-76.4% (price as of 2026-08-19)
July 1, 2020	NTRSO	A	52	$76.94	$4,001	12,660 Direct	+0.41%	Acquired	-76.1% (price as of 2026-08-19)
June 30, 2020	NTRSO	A	473	$79.34	$37,528	12,608 Direct	+3.90%	Acquired	-76.8% (price as of 2026-08-19)
April 21, 2020	NTRSO	A	1,679	—	—	12,136 Direct	+16.06%	Acquired	(price as of 2026-08-19)
April 21, 2020	NTRSO	A	42	$74.43	$3,126	10,457 Direct	+0.40%	Acquired	-75.3% (price as of 2026-08-19)
April 1, 2020	NTRSO	A	38	$73.00	$2,774	10,415 Direct	+0.37%	Acquired	-74.8% (price as of 2026-08-19)
March 31, 2020	NTRSO	A	497	$75.46	$37,504	10,377 Direct	+5.03%	Acquired	-75.6% (price as of 2026-08-19)
Jan. 1, 2020	NTRSO	A	24	$106.24	$2,550	9,880 Direct	+0.24%	Acquired	-82.7% (price as of 2026-08-19)
Dec. 31, 2019	NTRSO	A	341	$106.24	$36,228	9,856 Direct	+3.58%	Acquired	-82.7% (price as of 2026-08-19)
Oct. 1, 2019	NTRSO	A	25	$89.88	$2,247	9,515 Direct	+0.26%	Acquired	-79.6% (price as of 2026-08-19)
Sept. 30, 2019	NTRSO	A	388	$93.32	$36,208	9,490 Direct	+4.26%	Acquired	-80.3% (price as of 2026-08-19)
July 1, 2019	NTRSO	A	18	$91.65	$1,650	9,102 Direct	+0.20%	Acquired	-79.9% (price as of 2026-08-19)
June 30, 2019	NTRSO	A	393	$90.00	$35,370	9,084 Direct	+4.52%	Acquired	-79.6% (price as of 2026-08-19)
April 23, 2019	NTRSO	A	1,146	—	—	8,691 Direct	+15.19%	Acquired	(price as of 2026-08-19)
April 23, 2019	NTRSO	A	23	$95.94	$2,207	7,545 Direct	+0.31%	Acquired	-80.8% (price as of 2026-08-19)
April 3, 2019	NTRSO	S	4	$93.99	$376	47 Indirect	-7.84%	Disposed	-80.4% (price as of 2026-08-19)
April 1, 2019	NTRSO	A	9	$92.70	$834	7,522 Direct	+0.12%	Acquired	-80.2% (price as of 2026-08-19)
March 31, 2019	NTRSO	A	359	$90.41	$32,457	7,513 Direct	+5.02%	Acquired	-79.7% (price as of 2026-08-19)
Jan. 23, 2019	NTRSO	L	4	$89.78	$359	51 Indirect	+8.51%	Acquired	-79.5% (price as of 2026-08-19)
Jan. 1, 2019	NTRSO	A	6	$83.59	$502	7,154 Direct	+0.08%	Acquired	-78.0% (price as of 2026-08-19)
Dec. 31, 2018	NTRSO	A	389	$83.59	$32,517	7,148 Direct	+5.76%	Acquired	-78.0% (price as of 2026-08-19)
Oct. 10, 2018	NTRSO	L	1	$103.35	$103	47 Indirect	+2.17%	Acquired	-82.2% (price as of 2026-08-19)
Oct. 1, 2018	NTRSO	A	3	$103.66	$311	6,759 Direct	+0.04%	Acquired	-82.3% (price as of 2026-08-19)
Sept. 30, 2018	NTRSO	A	318	$102.13	$32,477	6,756 Direct	+4.94%	Acquired	-82.0% (price as of 2026-08-19)
July 1, 2018	NTRSO	A	1	$102.89	$103	6,437 Direct	+0.02%	Acquired	-82.1% (price as of 2026-08-19)
June 30, 2018	NTRSO	A	316	$102.89	$32,513	6,436 Direct	+5.16%	Acquired	-82.1% (price as of 2026-08-19)
June 22, 2018	NTRSO	L	1	$107.64	$108	46 Indirect	+2.22%	Acquired	-82.9% (price as of 2026-08-19)
May 18, 2018	NTRSO	L	14	$107.81	$1,509	45 Indirect	+45.16%	Acquired	-83.0% (price as of 2026-08-19)
April 17, 2018	NTRSO	A	1,033	—	—	6,120 Direct	+20.31%	Acquired	(price as of 2026-08-19)
March 31, 2018	NTRSO	A	315	$103.13	$32,486	5,087 Direct	+6.60%	Acquired	-82.2% (price as of 2026-08-19)
Dec. 31, 2017	NTRSO	A	322	$100.66	$32,413	4,787 Direct	+7.21%	Acquired	-81.7% (price as of 2026-08-19)
Sept. 30, 2017	NTRSO	A	352	$92.13	$32,430	4,465 Direct	+8.56%	Acquired	-80.0% (price as of 2026-08-19)
June 30, 2017	NTRSO	A	333	$97.55	$32,484	4,113 Direct	+8.81%	Acquired	-81.2% (price as of 2026-08-19)
May 1, 2017	NTRSO	S	2	$90.13	$180	31 Indirect	-6.06%	Disposed	-79.6% (price as of 2026-08-19)
April 25, 2017	NTRSO	A	1,214	—	—	4,772 Direct	+34.12%	Acquired	(price as of 2026-08-19)
March 31, 2017	NTRSO	A	374	$86.78	$32,456	3,780 Direct	+10.98%	Acquired	-78.8% (price as of 2026-08-19)
Dec. 31, 2016	NTRSO	A	365	$88.82	$32,419	3,406 Direct	+12.00%	Acquired	-79.3% (price as of 2026-08-19)
Sept. 30, 2016	NTRSO	A	481	$67.56	$32,496	3,041 Direct	+18.79%	Acquired	-72.8% (price as of 2026-08-19)
June 30, 2016	NTRSO	A	497	$65.31	$32,459	2,560 Direct	+24.09%	Acquired	-71.9% (price as of 2026-08-19)
April 19, 2016	NTRSO	A	1,531	—	—	3,558 Direct	+75.53%	Acquired	(price as of 2026-08-19)
March 31, 2016	NTRSO	A	467	$65.48	$30,579	2,063 Direct	+29.26%	Acquired	-71.9% (price as of 2026-08-19)
Dec. 31, 2015	NTRSO	A	405	$72.63	$29,415	1,596 Direct	+34.01%	Acquired	-74.7% (price as of 2026-08-19)
Dec. 15, 2015	NTRSO	P	1,000	$72.98	$72,980	1,000 Indirect	—	Acquired	-74.8% (price as of 2026-08-19)
Sept. 30, 2015	NTRSO	A	424	$67.79	$28,743	1,201 Direct	+54.57%	Acquired	-72.9% (price as of 2026-08-19)
June 30, 2015	NTRSO	A	374	$76.76	$28,708	777 Direct	+92.80%	Acquired	-76.1% (price as of 2026-08-19)
April 21, 2015	NTRSO	A	1,530	—	—	2,027 Direct	+307.85%	Acquired	(price as of 2026-08-19)
March 31, 2015	NTRSO	A	403	$69.61	$28,053	403 Direct	—	Acquired	-73.6% (price as of 2026-08-19)
Feb. 25, 2015	NTRSO	P	18	$71.06	$1,279	33 Indirect	+120.00%	Acquired	-74.1% (price as of 2026-08-19)
Jan. 1, 2015	NTRSO	A	497	—	—	497 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
Dec. 31, 2017	NTRSO	Stock Units	Common Stock (322)	—	—	322	Acquired
Sept. 30, 2017	NTRSO	Stock Units	Common Stock (352)	—	—	352	Acquired
June 30, 2017	NTRSO	Stock Units	Common Stock (333)	—	—	333	Acquired
March 31, 2017	NTRSO	Stock Units	Common Stock (374)	—	—	374	Acquired
Dec. 31, 2016	NTRSO	Stock Units	Common Stock (365)	—	—	365	Acquired
Sept. 30, 2016	NTRSO	Stock Units	Common Stock (481)	—	—	481	Acquired
June 30, 2016	NTRSO	Stock Units	Common Stock (497)	—	—	497	Acquired
March 31, 2016	NTRSO	Stock Units	Common Stock (467)	—	—	467	Acquired
Dec. 31, 2015	NTRSO	Stock Units [F2]	Common Stock (395)	—	—	405	Acquired
Sept. 30, 2015	NTRSO	Stock Units [F2]	Common Stock (424)	—	—	424	Acquired
June 30, 2015	NTRSO	Stock Units [F2]	Common Stock (374)	—	—	374	Acquired
March 31, 2015	NTRSO	Stock Units [F2]	Common Stock (403)	—	—	403	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
Jan. 5, 2015	NTRSO	Common Stock	15	Indirect