John Burville

Insider

First SEC filing: March 5, 2007 · Latest: March 5, 2007

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.

Insider at

SIGIP selling Feb. 6, 2023

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. 6, 2023	SIGIP	S	20,000	$100.17	$2,003,400	46,304 Direct	-30.16%	Disposed	-84.3% (price as of 2026-08-21)
Nov. 30, 2022	SIGIP	S	17,348	$95.50	$1,656,734	66,301 Direct	-20.74%	Disposed	-83.5% (price as of 2026-08-21)
Nov. 29, 2022	SIGIP	S	2,652	$95.52	$253,319	83,649 Direct	-3.07%	Disposed	-83.5% (price as of 2026-08-21)
May 6, 2022	SIGIP	A	2,282	—	—	86,292 Direct	+2.72%	Acquired	(price as of 2026-08-21)
April 30, 2021	SIGIP	A	2,168	—	—	83,996 Direct	+2.65%	Acquired	(price as of 2026-08-21)
May 7, 2020	SIGIP	A	3,575	—	—	81,806 Direct	+4.57%	Acquired	(price as of 2026-08-21)
Nov. 21, 2019	SIGIP	M	7,953	$16.71	$132,895	78,222 Direct	+11.32%	Acquired	-5.7% (price as of 2026-08-21)
Nov. 21, 2019	SIGIP	M	7,953	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
May 3, 2019	SIGIP	A	1,129	—	—	70,263 Direct	+1.63%	Acquired	(price as of 2026-08-21)
Feb. 22, 2019	SIGIP	S	3,614	$66.27	$239,500	69,130 Direct	-4.97%	Disposed	-76.2% (price as of 2026-08-21)
Feb. 19, 2019	SIGIP	M	14,612	$11.60	$169,499	75,359 Direct	+24.05%	Acquired	35.8% (price as of 2026-08-21)
Feb. 19, 2019	SIGIP	S	2,615	$65.19	$170,472	72,744 Direct	-3.47%	Disposed	-75.8% (price as of 2026-08-21)
Feb. 19, 2019	SIGIP	M	14,612	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
May 4, 2018	SIGIP	A	1,451	—	—	60,734 Direct	+2.45%	Acquired	(price as of 2026-08-21)
Jan. 25, 2018	SIGIP	M	6,275	$23.93	$150,161	59,278 Direct	+11.84%	Acquired	-34.2% (price as of 2026-08-21)
Jan. 25, 2018	SIGIP	M	6,275	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Nov. 28, 2017	SIGIP	S	6,840	$59.65	$408,006	52,998 Direct	-11.43%	Disposed	-73.6% (price as of 2026-08-21)
Nov. 22, 2017	SIGIP	S	60	$59.50	$3,570	59,838 Direct	-0.10%	Disposed	-73.5% (price as of 2026-08-21)
Nov. 21, 2017	SIGIP	S	10,000	$60.07	$600,700	59,898 Direct	-14.31%	Disposed	-73.8% (price as of 2026-08-21)
Nov. 20, 2017	SIGIP	S	5,000	$59.04	$295,200	69,898 Direct	-6.68%	Disposed	-73.3% (price as of 2026-08-21)
Nov. 17, 2017	SIGIP	S	1,000	$58.80	$58,800	74,898 Direct	-1.32%	Disposed	-73.2% (price as of 2026-08-21)
Nov. 16, 2017	SIGIP	S	4,000	$58.70	$234,800	75,898 Direct	-5.01%	Disposed	-73.2% (price as of 2026-08-21)
Nov. 15, 2017	SIGIP	S	1,000	$58.60	$58,600	79,898 Direct	-1.24%	Disposed	-73.1% (price as of 2026-08-21)
Nov. 13, 2017	SIGIP	S	2,000	$58.53	$117,060	80,898 Direct	-2.41%	Disposed	-73.1% (price as of 2026-08-21)
Nov. 10, 2017	SIGIP	S	1,000	$58.76	$58,760	82,898 Direct	-1.19%	Disposed	-73.2% (price as of 2026-08-21)
Nov. 7, 2017	SIGIP	S	600	$59.10	$35,460	83,898 Direct	-0.71%	Disposed	-73.4% (price as of 2026-08-21)
April 28, 2017	SIGIP	A	2,842	—	—	84,489 Direct	+3.48%	Acquired	(price as of 2026-08-21)
Feb. 10, 2017	SIGIP	M	5,031	$24.54	$123,461	81,635 Direct	+6.57%	Acquired	-35.8% (price as of 2026-08-21)
Feb. 10, 2017	SIGIP	M	5,031	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Oct. 28, 2016	SIGIP	A	380	—	—	76,591 Direct	+0.50%	Acquired	(price as of 2026-08-21)
July 29, 2016	SIGIP	A	358	—	—	76,199 Direct	+0.47%	Acquired	(price as of 2026-08-21)
May 6, 2016	SIGIP	A	2,644	—	—	75,828 Direct	+3.61%	Acquired	(price as of 2026-08-21)
Feb. 19, 2016	SIGIP	M	4,238	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Feb. 19, 2016	SIGIP	M	4,238	$27.19	$115,231	73,158 Direct	+6.15%	Acquired	-42.1% (price as of 2026-08-21)
Feb. 8, 2016	SIGIP	A	423	—	—	68,920 Direct	+0.62%	Acquired	(price as of 2026-08-21)
Oct. 30, 2015	SIGIP	A	288	—	—	68,472 Direct	+0.42%	Acquired	(price as of 2026-08-21)
July 31, 2015	SIGIP	A	341	—	—	68,156 Direct	+0.50%	Acquired	(price as of 2026-08-21)
May 1, 2015	SIGIP	A	3,327	—	—	67,785 Direct	+5.16%	Acquired	(price as of 2026-08-21)
Feb. 2, 2015	SIGIP	A	404	—	—	64,427 Direct	+0.63%	Acquired	(price as of 2026-08-21)
Oct. 31, 2014	SIGIP	A	291	—	—	63,992 Direct	+0.46%	Acquired	(price as of 2026-08-21)
Aug. 1, 2014	SIGIP	A	324	—	—	63,668 Direct	+0.51%	Acquired	(price as of 2026-08-21)
April 25, 2014	SIGIP	A	3,107	—	—	63,311 Direct	+5.16%	Acquired	(price as of 2026-08-21)
Feb. 3, 2014	SIGIP	A	331	—	—	60,166 Direct	+0.55%	Acquired	(price as of 2026-08-21)
Nov. 1, 2013	SIGIP	A	289	—	—	59,804 Direct	+0.49%	Acquired	(price as of 2026-08-21)
Aug. 2, 2013	SIGIP	A	297	—	—	59,477 Direct	+0.50%	Acquired	(price as of 2026-08-21)
April 26, 2013	SIGIP	A	3,110	—	—	59,144 Direct	+5.55%	Acquired	(price as of 2026-08-21)
Feb. 4, 2013	SIGIP	A	347	—	—	55,992 Direct	+0.62%	Acquired	(price as of 2026-08-21)
April 27, 2012	SIGIP	A	3,728	—	—	55,492 Direct	+7.20%	Acquired	(price as of 2026-08-21)
April 27, 2012	SIGIP	P	11,500	$17.43	$200,445	51,764 Direct	+28.56%	Acquired	-9.6% (price as of 2026-08-21)
Aug. 1, 2011	SIGIP	P	20,000	$16.31	$326,200	40,114 Direct	+99.43%	Acquired	-3.4% (price as of 2026-08-21)
April 29, 2011	SIGIP	A	3,685	—	—	20,066 Direct	+22.50%	Acquired	(price as of 2026-08-21)
Oct. 1, 2010	SIGIP	A	461	—	—	16,314 Direct	+2.91%	Acquired	(price as of 2026-08-21)
July 1, 2010	SIGIP	A	511	—	—	15,815 Direct	+3.34%	Acquired	(price as of 2026-08-21)
April 30, 2010	SIGIP	A	7,953	—	—	7,953 Direct	—	Acquired	(price as of 2026-08-21)
April 30, 2010	SIGIP	A	1,945	—	—	15,267 Direct	+14.60%	Acquired	(price as of 2026-08-21)
April 1, 2010	SIGIP	A	447	—	—	13,322 Direct	+3.47%	Acquired	(price as of 2026-08-21)
Jan. 4, 2010	SIGIP	A	447	—	—	12,844 Direct	+3.61%	Acquired	(price as of 2026-08-21)
Oct. 1, 2009	SIGIP	A	485	—	—	12,366 Direct	+4.08%	Acquired	(price as of 2026-08-21)
July 1, 2009	SIGIP	A	571	—	—	11,852 Direct	+5.06%	Acquired	(price as of 2026-08-21)
April 1, 2009	SIGIP	A	614	—	—	11,244 Direct	+5.78%	Acquired	(price as of 2026-08-21)
March 2, 2009	SIGIP	A	14,612	—	—	14,612 Direct	—	Acquired	(price as of 2026-08-21)
March 2, 2009	SIGIP	A	2,802	—	—	10,615 Direct	+35.86%	Acquired	(price as of 2026-08-21)
Jan. 2, 2009	SIGIP	A	331	$22.71	$7,517	7,813 Direct	+4.42%	Acquired	-30.6% (price as of 2026-08-21)
Oct. 1, 2008	SIGIP	A	295	$25.44	$7,505	7,474 Direct	+4.11%	Acquired	-38.1% (price as of 2026-08-21)
July 1, 2008	SIGIP	A	395	$19.03	$7,517	7,171 Direct	+5.83%	Acquired	-17.2% (price as of 2026-08-21)
April 1, 2008	SIGIP	A	303	$24.78	$7,508	6,768 Direct	+4.69%	Acquired	-36.4% (price as of 2026-08-21)
March 3, 2008	SIGIP	A	6,275	—	—	6,275 Direct	—	Acquired	(price as of 2026-08-21)
March 3, 2008	SIGIP	A	1,359	—	—	6,465 Direct	+26.62%	Acquired	(price as of 2026-08-21)
Jan. 2, 2008	SIGIP	A	330	$22.73	$7,501	5,106 Direct	+6.91%	Acquired	-30.7% (price as of 2026-08-21)
Oct. 1, 2007	SIGIP	A	342	$21.97	$7,514	4,776 Direct	+7.71%	Acquired	-28.3% (price as of 2026-08-21)
July 2, 2007	SIGIP	A	276	$27.19	$7,504	4,434 Direct	+6.64%	Acquired	-42.1% (price as of 2026-08-21)
April 2, 2007	SIGIP	A	295	$25.51	$7,525	4,158 Direct	+7.64%	Acquired	-38.3% (price as of 2026-08-21)
March 1, 2007	SIGIP	A	1,325	—	—	3,863 Direct	+52.21%	Acquired	(price as of 2026-08-21)
March 1, 2007	SIGIP	A	5,031	—	—	5,031 Direct	—	Acquired	(price as of 2026-08-21)
Jan. 3, 2007	SIGIP	A	132	$57.20	$7,550	1,269 Direct	+11.61%	Acquired	-72.5% (price as of 2026-08-21)
Oct. 2, 2006	SIGIP	A	144	$52.10	$7,502	1,137 Direct	+14.50%	Acquired	-69.8% (price as of 2026-08-21)
July 3, 2006	SIGIP	A	134	$56.04	$7,509	993 Direct	+15.60%	Acquired	-71.9% (price as of 2026-08-21)
April 3, 2006	SIGIP	A	142	$52.84	$7,503	859 Direct	+19.80%	Acquired	-70.2% (price as of 2026-08-21)
March 1, 2006	SIGIP	A	4,238	—	—	4,238 Direct	—	Acquired	(price as of 2026-08-21)
March 1, 2006	SIGIP	A	598	—	—	598 Direct	—	Acquired	(price as of 2026-08-21)
March 1, 2006	SIGIP	A	598	—	—	717 Direct	+502.52%	Acquired	(price as of 2026-08-21)
Jan. 3, 2006	SIGIP	A	119	$54.23	$6,453	119 Direct	—	Acquired	-71.0% (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.

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
Nov. 21, 2019	SIGIP	Stock Option	Common Stock (7,953)	$16.71	April 30, 2020	7,953	Disposed
Feb. 19, 2019	SIGIP	Stock Option	Common Stock (14,612)	$11.60	March 2, 2019	14,612	Disposed
Jan. 25, 2018	SIGIP	Stock Option	Common Stock (6,275)	$23.93	March 3, 2018	6,275	Disposed
Feb. 10, 2017	SIGIP	Stock Option	Common Stock (5,031)	$24.54	March 1, 2017	5,031	Disposed
Feb. 19, 2016	SIGIP	Stock Option	Common Stock (4,238)	$27.19	March 1, 2016	4,238	Disposed
April 30, 2010	SIGIP	Stock Option	Common Stock (7,953)	$16.71	April 30, 2020	7,953	Acquired
March 2, 2009	SIGIP	Stock Option	Common Stock (14,612)	$11.60	March 2, 2019	14,612	Acquired
March 3, 2008	SIGIP	Stock Option	Common Stock (6,275)	$23.93	March 3, 2018	6,275	Acquired
March 1, 2007	SIGIP	Stock Option	Common Stock (5,031)	$24.54	March 1, 2017	5,031	Acquired
March 1, 2006	SIGIP	Stock Option	Common Stock (4,238)	$27.19	March 1, 2016	4,238	Acquired
March 1, 2006	SIGIP	Stock Option	Common Stock (598)	$54.38	March 1, 2016	598	Acquired

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