Aileen B Blake

Insider

First SEC filing: March 5, 2019 · Latest: March 5, 2019

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 May 7, 2018

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 39 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

39 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
March 1, 2019	NTRSO	F	477	$93.49	$44,595	11,692 Direct	-3.92%	Disposed	-80.3% (price as of 2026-08-20)
Feb. 19, 2019	NTRSO	A	2,339	—	—	12,767 Direct	+22.43%	Acquired	(price as of 2026-08-20)
Feb. 19, 2019	NTRSO	F	261	$92.83	$24,229	10,428 Direct	-2.44%	Disposed	-80.2% (price as of 2026-08-20)
Feb. 19, 2019	NTRSO	F	299	$92.83	$27,756	11,318 Direct	-2.57%	Disposed	-80.2% (price as of 2026-08-20)
Jan. 22, 2019	NTRSO	F	1,423	$90.42	$128,668	12,338 Direct	-10.34%	Disposed	-79.7% (price as of 2026-08-20)
Jan. 22, 2019	NTRSO	A	4,641	—	—	16,979 Direct	+37.62%	Acquired	(price as of 2026-08-20)
May 8, 2018	NTRSO	G	925	—	—	11,660 Indirect	-7.35%	Disposed	(price as of 2026-08-20)
May 7, 2018	NTRSO	M	6,163	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 7, 2018	NTRSO	S	6,163	$105.10	$647,731	12,338 Direct	-33.31%	Disposed	-82.5% (price as of 2026-08-20)
May 7, 2018	NTRSO	M	6,163	$60.85	$375,019	18,501 Direct	+49.95%	Acquired	-69.8% (price as of 2026-08-20)
May 7, 2018	NTRSO	S	1,000	$105.49	$105,490	12,585 Indirect	-7.36%	Disposed	-82.6% (price as of 2026-08-20)
Feb. 20, 2018	NTRSO	A	4,298	—	—	12,338 Direct	+53.46%	Acquired	(price as of 2026-08-20)
Feb. 20, 2018	NTRSO	F	262	$105.15	$27,549	8,040 Direct	-3.16%	Disposed	-82.5% (price as of 2026-08-20)
Feb. 12, 2018	NTRSO	F	301	$98.88	$29,763	8,931 Direct	-3.26%	Disposed	-81.4% (price as of 2026-08-20)
Jan. 26, 2018	NTRSO	S	3,000	$105.32	$315,960	12,230 Indirect	-19.70%	Disposed	-82.5% (price as of 2026-08-20)
Jan. 23, 2018	NTRSO	F	1,335	$106.71	$142,458	9,958 Direct	-11.82%	Disposed	-82.8% (price as of 2026-08-20)
Jan. 23, 2018	NTRSO	A	3,978	$106.71	$424,492	13,936 Direct	+39.95%	Acquired	-82.8% (price as of 2026-08-20)
Dec. 1, 2017	NTRSO	G	585	—	—	12,587 Indirect	-4.44%	Disposed	(price as of 2026-08-20)
Oct. 6, 2017	NTRSO	S 10b5-1	1,000	$94.00	$94,000	13,172 Indirect	-7.06%	Disposed	-80.4% (price as of 2026-08-20)
Sept. 27, 2017	NTRSO	S 10b5-1	1,000	$92.00	$92,000	14,172 Indirect	-6.59%	Disposed	-80.0% (price as of 2026-08-20)
Aug. 28, 2017	NTRSO	S 10b5-1	1,000	$90.00	$90,000	15,172 Indirect	-6.18%	Disposed	-79.6% (price as of 2026-08-20)
Aug. 14, 2017	NTRSO	M	6,762	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Aug. 14, 2017	NTRSO	S	1,000	$88.44	$88,440	16,172 Indirect	-5.82%	Disposed	-79.2% (price as of 2026-08-20)
Aug. 14, 2017	NTRSO	S	6,762	$88.45	$598,099	9,958 Direct	-40.44%	Disposed	-79.2% (price as of 2026-08-20)
Aug. 14, 2017	NTRSO	M	6,762	$52.69	$356,290	16,720 Direct	+67.91%	Acquired	-65.1% (price as of 2026-08-20)
Feb. 16, 2012	NTRSO	F	462	$43.50	$20,097	24,923 Direct	-1.82%	Disposed	-57.7% (price as of 2026-08-20)
Feb. 13, 2012	NTRSO	A	10,883	—	—	10,883 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 13, 2012	NTRSO	A	7,255	—	—	26,217 Direct	+38.26%	Acquired	(price as of 2026-08-20)
May 3, 2011	NTRSO	S	95	$49.37	$4,690	0 Indirect	-100.00%	Disposed	-62.8% (price as of 2026-08-20)
Feb. 14, 2011	NTRSO	A	12,538	—	—	12,538 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 14, 2011	NTRSO	A	4,180	—	—	18,962 Direct	+28.28%	Acquired	(price as of 2026-08-20)
Oct. 18, 2010	NTRSO	A	7,977	—	—	14,782 Direct	+117.22%	Acquired	(price as of 2026-08-20)
Feb. 22, 2010	NTRSO	F	231	$54.44	$12,576	6,805 Direct	-3.28%	Disposed	-66.2% (price as of 2026-08-20)
Feb. 16, 2010	NTRSO	F	357	$50.99	$18,203	0 Direct	-100.00%	Disposed	-63.9% (price as of 2026-08-20)
Feb. 15, 2010	NTRSO	A	12,650	—	—	12,650 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 15, 2010	NTRSO	A	4,217	—	—	7,545 Direct	+126.71%	Acquired	(price as of 2026-08-20)
Nov. 9, 2009	NTRSO	F	442	$50.42	$22,286	1,000 Direct	-30.65%	Disposed	-63.5% (price as of 2026-08-20)
Feb. 21, 2009	NTRSO	F	226	$56.38	$12,742	3,328 Direct	-6.36%	Disposed	-67.4% (price as of 2026-08-20)
Feb. 17, 2009	NTRSO	F	357	$55.50	$19,814	2,500 Direct	-12.50%	Disposed	-66.9% (price as of 2026-08-20)
Feb. 16, 2009	NTRSO	A	15,527	—	—	15,527 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 16, 2009	NTRSO	A	2,588	—	—	4,067 Direct	+174.98%	Acquired	(price as of 2026-08-20)
Nov. 10, 2008	NTRSO	F	221	$51.42	$11,364	3,500 Direct	-5.94%	Disposed	-64.2% (price as of 2026-08-20)
Feb. 19, 2008	NTRSO	A	8,950	—	—	8,950 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 15, 2008	NTRSO	F	357	$72.00	$25,704	4,250 Direct	-7.75%	Disposed	-74.5% (price as of 2026-08-20)
Nov. 8, 2007	NTRSO	F	221	$76.16	$16,831	5,779 Direct	-3.68%	Disposed	-75.9% (price as of 2026-08-20)
Feb. 20, 2007	NTRSO	A	9,222	—	—	9,222 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 21, 2006	NTRSO	A	13,299	—	—	13,299 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 21, 2006	NTRSO	A	1,479	—	—	1,479 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 7, 2018	NTRSO	Employee Stock Option (right-to-buy)	Common Stock (6,163)	$60.85	Feb. 10, 2024	6,163	Disposed
Aug. 14, 2017	NTRSO	Employee Stock Option (right-to-buy)	Common Stock (6,762)	$52.69	Feb. 11, 2023	6,762	Disposed
Feb. 13, 2012	NTRSO	Employee Stock Option (right-to-buy)	Common Stock (10,883)	$43.65	Feb. 13, 2022	10,883	Acquired
Feb. 14, 2011	NTRSO	Employee Stock Option (right-to-buy)	Common Stock (12,538)	$52.64	Feb. 14, 2021	12,538	Acquired
Feb. 15, 2010	NTRSO	Employee Stock Option (right-to-buy)	Common Stock (12,650)	$50.99	Feb. 15, 2020	12,650	Acquired
Feb. 16, 2009	NTRSO	Employee Stock Option (right-to-buy)	Common Stock (15,527)	$55.39	Feb. 16, 2019	15,527	Acquired
Feb. 19, 2008	NTRSO	Employee Stock Option (right-to-buy)	Common Stock (8,950)	$71.23	Feb. 19, 2018	8,950	Acquired
Feb. 20, 2007	NTRSO	Employee Stock Option (right-to-buy)	Common Stock (9,222)	$63.36	Feb. 20, 2017	9,222	Acquired
Feb. 21, 2006	NTRSO	Employee Stock Option (right-to-buy)	Common Stock (13,299)	$52.10	Feb. 21, 2016	13,299	Acquired

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

Initial ownership (Form 3) 18 holdings

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

Date	Ticker	Security	Shares	Ownership
May 15, 2017	NTRSO	Common Stock	9,958	Direct
May 15, 2017	NTRSO	Common Stock	17,172	Indirect
May 15, 2017	NTRSO	Employee Stock Option (right-to-buy)→ Common Stock (6,762)	6,762	Direct
May 15, 2017	NTRSO	Employee Stock Option (right-to-buy)→ Common Stock (6,163)	6,163	Direct
May 15, 2017	NTRSO	Employee Stock Option (right-to-buy)→ Common Stock (5,935)	5,935	Direct
May 15, 2017	NTRSO	Employee Stock Option (right-to-buy)→ Common Stock (7,281)	7,281	Direct
April 6, 2005	NTRSO	Common Stock	6,000	Direct
April 6, 2005	NTRSO	Employee Stock Option (right-to-buy)→ Common Stock (3,750)	3,750	Direct
April 6, 2005	NTRSO	Employee Stock Option (right-to-buy)→ Common Stock (3,750)	3,750	Direct
April 6, 2005	NTRSO	Employee Stock Option (right-to-buy)→ Common Stock (3,750)	3,750	Direct
April 6, 2005	NTRSO	Employee Stock Option (right-to-buy)→ Common Stock (3,750)	3,750	Direct
April 6, 2005	NTRSO	Employee Stock Option (right-to-buy)→ Common Stock (15,000)	15,000	Direct
April 6, 2005	NTRSO	Common Stock	6,000	Direct
April 6, 2005	NTRSO	Employee Stock Option (right-to-buy)→ Common Stock (3,750)	3,750	Direct
April 6, 2005	NTRSO	Employee Stock Option (right-to-buy)→ Common Stock (3,750)	3,750	Direct
April 6, 2005	NTRSO	Employee Stock Option (right-to-buy)→ Common Stock (3,750)	3,750	Direct
April 6, 2005	NTRSO	Employee Stock Option (right-to-buy)→ Common Stock (3,750)	3,750	Direct
April 6, 2005	NTRSO	Employee Stock Option (right-to-buy)→ Common Stock (15,000)	15,000	Direct