David A Brown

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.
Initial holdings The stakes this person held when they first started reporting.

Insider at

SIGIP selling Nov. 14, 2017

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 73 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

73 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Nov. 14, 2017	SIGIP	M	14,612	$11.60	$169,499	29,996 Direct	+94.98%	Acquired	35.1% (price as of 2026-08-19)
Nov. 14, 2017	SIGIP	S	4,000	$57.76	$231,040	25,996 Direct	-13.34%	Disposed	-72.9% (price as of 2026-08-19)
Nov. 14, 2017	SIGIP	S	14,612	$58.13	$849,396	11,384 Direct	-56.21%	Disposed	-73.0% (price as of 2026-08-19)
Nov. 14, 2017	SIGIP	M	14,612	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
May 23, 2017	SIGIP	M	6,275	$23.93	$150,161	21,650 Direct	+40.81%	Acquired	-34.5% (price as of 2026-08-19)
May 23, 2017	SIGIP	S	6,275	$50.49	$316,825	15,375 Direct	-28.98%	Disposed	-69.0% (price as of 2026-08-19)
May 23, 2017	SIGIP	M	6,275	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
April 28, 2017	SIGIP	A	1,516	—	—	15,375 Direct	+10.94%	Acquired	(price as of 2026-08-19)
Aug. 11, 2016	SIGIP	S	6,400	$39.23	$251,072	13,833 Direct	-31.63%	Disposed	-60.1% (price as of 2026-08-19)
May 6, 2016	SIGIP	A	2,250	—	—	20,224 Direct	+12.52%	Acquired	(price as of 2026-08-19)
Oct. 30, 2015	SIGIP	M	5,031	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
Oct. 30, 2015	SIGIP	M	4,238	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
Oct. 30, 2015	SIGIP	S	9,269	$37.15	$344,343	17,974 Direct	-34.02%	Disposed	-57.8% (price as of 2026-08-19)
Oct. 30, 2015	SIGIP	M	4,238	$27.19	$115,231	27,243 Direct	+18.42%	Acquired	-42.4% (price as of 2026-08-19)
Oct. 30, 2015	SIGIP	M	5,031	$24.54	$123,461	23,005 Direct	+27.99%	Acquired	-36.1% (price as of 2026-08-19)
Oct. 31, 2014	SIGIP	M	6,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
Oct. 31, 2014	SIGIP	S	6,000	$25.23	$151,380	33,674 Direct	-15.12%	Disposed	-37.9% (price as of 2026-08-19)
Oct. 31, 2014	SIGIP	A	243	—	—	39,674 Direct	+0.62%	Acquired	(price as of 2026-08-19)
Oct. 31, 2014	SIGIP	M	6,000	$23.18	$139,080	39,431 Direct	+17.95%	Acquired	-32.4% (price as of 2026-08-19)
Aug. 1, 2014	SIGIP	A	270	—	—	33,398 Direct	+0.82%	Acquired	(price as of 2026-08-19)
May 5, 2014	SIGIP	S	4,619	$23.07	$106,560	33,095 Direct	-12.25%	Disposed	-32.1% (price as of 2026-08-19)
April 25, 2014	SIGIP	A	3,053	—	—	37,714 Direct	+8.81%	Acquired	(price as of 2026-08-19)
Feb. 3, 2014	SIGIP	A	276	—	—	34,623 Direct	+0.80%	Acquired	(price as of 2026-08-19)
Nov. 1, 2013	SIGIP	S	7,193	$25.68	$184,716	34,316 Direct	-17.33%	Disposed	-39.0% (price as of 2026-08-19)
Nov. 1, 2013	SIGIP	A	241	—	—	41,509 Direct	+0.58%	Acquired	(price as of 2026-08-19)
Aug. 2, 2013	SIGIP	A	247	—	—	41,230 Direct	+0.60%	Acquired	(price as of 2026-08-19)
May 3, 2013	SIGIP	M	6,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
May 3, 2013	SIGIP	S	6,000	$23.43	$140,580	40,947 Direct	-12.78%	Disposed	-33.1% (price as of 2026-08-19)
May 3, 2013	SIGIP	S	4,000	$23.09	$92,360	46,947 Direct	-7.85%	Disposed	-32.1% (price as of 2026-08-19)
May 3, 2013	SIGIP	M	6,000	$18.58	$111,480	50,947 Direct	+13.35%	Acquired	-15.7% (price as of 2026-08-19)
April 26, 2013	SIGIP	A	3,057	—	—	44,947 Direct	+7.30%	Acquired	(price as of 2026-08-19)
Feb. 4, 2013	SIGIP	A	290	—	—	41,848 Direct	+0.70%	Acquired	(price as of 2026-08-19)
Oct. 26, 2012	SIGIP	S	7,000	$18.89	$132,230	41,509 Direct	-14.43%	Disposed	-17.0% (price as of 2026-08-19)
May 3, 2012	SIGIP	M	6,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
May 3, 2012	SIGIP	S	6,000	$17.71	$106,260	48,405 Direct	-11.03%	Disposed	-11.5% (price as of 2026-08-19)
May 3, 2012	SIGIP	M	6,000	$11.78	$70,680	54,405 Direct	+12.40%	Acquired	33.0% (price as of 2026-08-19)
April 27, 2012	SIGIP	A	3,728	—	—	48,405 Direct	+8.34%	Acquired	(price as of 2026-08-19)
Oct. 28, 2011	SIGIP	M	6,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
Oct. 28, 2011	SIGIP	S	6,000	$16.53	$99,180	44,580 Direct	-11.86%	Disposed	-5.2% (price as of 2026-08-19)
Oct. 28, 2011	SIGIP	M	6,000	$11.34	$68,040	50,580 Direct	+13.46%	Acquired	38.2% (price as of 2026-08-19)
April 29, 2011	SIGIP	A	3,685	—	—	44,479 Direct	+9.03%	Acquired	(price as of 2026-08-19)
Oct. 1, 2010	SIGIP	A	384	—	—	40,727 Direct	+0.95%	Acquired	(price as of 2026-08-19)
July 1, 2010	SIGIP	A	426	—	—	40,305 Direct	+1.07%	Acquired	(price as of 2026-08-19)
April 30, 2010	SIGIP	M	6,000	$10.83	$64,980	51,291 Direct	+13.25%	Acquired	44.7% (price as of 2026-08-19)
April 30, 2010	SIGIP	A	1,945	—	—	53,236 Direct	+3.79%	Acquired	(price as of 2026-08-19)
April 30, 2010	SIGIP	S	5,670	$16.86	$95,596	47,566 Direct	-10.65%	Disposed	-7.1% (price as of 2026-08-19)
April 30, 2010	SIGIP	A	7,953	—	—	7,953 Direct	—	Acquired	(price as of 2026-08-19)
April 30, 2010	SIGIP	M	6,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
April 30, 2010	SIGIP	S	7,724	$16.86	$130,227	39,842 Direct	-16.24%	Disposed	-7.1% (price as of 2026-08-19)
April 1, 2010	SIGIP	A	373	—	—	45,291 Direct	+0.83%	Acquired	(price as of 2026-08-19)
Jan. 4, 2010	SIGIP	A	373	—	—	44,887 Direct	+0.84%	Acquired	(price as of 2026-08-19)
Oct. 1, 2009	SIGIP	A	404	—	—	44,483 Direct	+0.92%	Acquired	(price as of 2026-08-19)
July 1, 2009	SIGIP	A	476	—	—	44,050 Direct	+1.09%	Acquired	(price as of 2026-08-19)
April 1, 2009	SIGIP	A	512	—	—	43,537 Direct	+1.19%	Acquired	(price as of 2026-08-19)
March 2, 2009	SIGIP	A	14,612	—	—	14,612 Direct	—	Acquired	(price as of 2026-08-19)
March 2, 2009	SIGIP	A	2,802	—	—	43,010 Direct	+6.97%	Acquired	(price as of 2026-08-19)
Jan. 2, 2009	SIGIP	A	276	$22.71	$6,268	40,208 Direct	+0.69%	Acquired	-31.0% (price as of 2026-08-19)
Oct. 1, 2008	SIGIP	A	492	$25.44	$12,516	39,924 Direct	+1.25%	Acquired	-38.4% (price as of 2026-08-19)
July 1, 2008	SIGIP	A	657	$19.03	$12,503	39,424 Direct	+1.69%	Acquired	-17.7% (price as of 2026-08-19)
April 1, 2008	SIGIP	A	505	$24.78	$12,514	38,759 Direct	+1.32%	Acquired	-36.8% (price as of 2026-08-19)
March 3, 2008	SIGIP	A	6,275	—	—	6,275 Direct	—	Acquired	(price as of 2026-08-19)
March 3, 2008	SIGIP	A	1,359	—	—	38,254 Direct	+3.68%	Acquired	(price as of 2026-08-19)
Jan. 2, 2008	SIGIP	A	550	$22.73	$12,502	36,895 Direct	+1.51%	Acquired	-31.1% (price as of 2026-08-19)
Oct. 29, 2007	SIGIP	M	6,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
Oct. 29, 2007	SIGIP	S	2,000	$24.30	$48,600	36,345 Direct	-5.22%	Disposed	-35.5% (price as of 2026-08-19)
Oct. 29, 2007	SIGIP	S	1,000	$24.32	$24,320	38,345 Direct	-2.54%	Disposed	-35.6% (price as of 2026-08-19)
Oct. 29, 2007	SIGIP	S	1,000	$24.40	$24,400	39,345 Direct	-2.48%	Disposed	-35.8% (price as of 2026-08-19)
Oct. 29, 2007	SIGIP	S	800	$24.24	$19,392	40,345 Direct	-1.94%	Disposed	-35.4% (price as of 2026-08-19)
Oct. 29, 2007	SIGIP	S	496	$24.26	$12,033	41,145 Direct	-1.19%	Disposed	-35.4% (price as of 2026-08-19)
Oct. 29, 2007	SIGIP	S	365	$24.23	$8,844	41,641 Direct	-0.87%	Disposed	-35.3% (price as of 2026-08-19)
Oct. 29, 2007	SIGIP	S	239	$24.25	$5,796	42,006 Direct	-0.57%	Disposed	-35.4% (price as of 2026-08-19)
Oct. 29, 2007	SIGIP	S	100	$24.21	$2,421	42,245 Direct	-0.24%	Disposed	-35.3% (price as of 2026-08-19)
Oct. 29, 2007	SIGIP	M	6,000	$13.56	$81,360	42,345 Direct	+16.51%	Acquired	15.6% (price as of 2026-08-19)
Oct. 1, 2007	SIGIP	A	569	$21.97	$12,501	36,345 Direct	+1.59%	Acquired	-28.7% (price as of 2026-08-19)
July 2, 2007	SIGIP	A	460	$27.19	$12,507	35,776 Direct	+1.30%	Acquired	-42.4% (price as of 2026-08-19)
April 2, 2007	SIGIP	A	491	$25.51	$12,525	35,316 Direct	+1.41%	Acquired	-38.6% (price as of 2026-08-19)
March 1, 2007	SIGIP	A	5,031	—	—	5,031 Direct	—	Acquired	(price as of 2026-08-19)
March 1, 2007	SIGIP	A	1,325	—	—	34,825 Direct	+3.96%	Acquired	(price as of 2026-08-19)
Jan. 3, 2007	SIGIP	A	219	$57.20	$12,527	16,750 Direct	+1.32%	Acquired	-72.6% (price as of 2026-08-19)
Nov. 9, 2006	SIGIP	M	3,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
Nov. 9, 2006	SIGIP	S	100	$53.90	$5,390	16,531 Direct	-0.60%	Disposed	-70.9% (price as of 2026-08-19)
Nov. 9, 2006	SIGIP	S	2,900	$53.89	$156,281	16,631 Direct	-14.85%	Disposed	-70.9% (price as of 2026-08-19)
Nov. 9, 2006	SIGIP	M	3,000	$20.81	$62,430	19,531 Direct	+18.15%	Acquired	-24.7% (price as of 2026-08-19)
Oct. 2, 2006	SIGIP	A	240	$52.10	$12,504	16,531 Direct	+1.47%	Acquired	-69.9% (price as of 2026-08-19)
July 3, 2006	SIGIP	A	224	$56.04	$12,553	16,291 Direct	+1.39%	Acquired	-72.0% (price as of 2026-08-19)
April 3, 2006	SIGIP	A	237	$52.84	$12,523	16,067 Direct	+1.50%	Acquired	-70.3% (price as of 2026-08-19)
March 1, 2006	SIGIP	A	4,238	—	—	4,238 Direct	—	Acquired	(price as of 2026-08-19)
March 1, 2006	SIGIP	A	598	—	—	598 Direct	—	Acquired	(price as of 2026-08-19)
March 1, 2006	SIGIP	A	598	—	—	15,830 Direct	+3.93%	Acquired	(price as of 2026-08-19)
Jan. 3, 2006	SIGIP	A	199	$54.23	$10,792	15,232 Direct	+1.32%	Acquired	-71.1% (price as of 2026-08-19)
Oct. 3, 2005	SIGIP	A	219	$49.17	$10,768	15,033 Direct	+1.48%	Acquired	-68.1% (price as of 2026-08-19)
July 1, 2005	SIGIP	A	216	$49.78	$10,752	14,814 Direct	+1.48%	Acquired	-68.5% (price as of 2026-08-19)
April 1, 2005	SIGIP	A	235	$45.88	$10,782	14,598 Direct	+1.64%	Acquired	-65.8% (price as of 2026-08-19)
March 1, 2005	SIGIP	A	3,000	—	—	3,000 Direct	—	Acquired	(price as of 2026-08-19)
Jan. 3, 2005	SIGIP	A	245	$44.00	$10,780	14,363 Direct	+1.74%	Acquired	-64.4% (price as of 2026-08-19)
Nov. 15, 2004	SIGIP	S	100	$41.64	$4,164	17,275 Direct	-0.58%	Disposed	-62.4% (price as of 2026-08-19)
Nov. 15, 2004	SIGIP	S	100	$41.60	$4,160	17,375 Direct	-0.57%	Disposed	-62.3% (price as of 2026-08-19)
Nov. 15, 2004	SIGIP	M	3,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
Nov. 15, 2004	SIGIP	M	3,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
Nov. 15, 2004	SIGIP	M	3,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)

Showing latest 100 of 118 transactions

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. 14, 2017	SIGIP	Stock Option	Common Stock (14,612)	$11.60	March 2, 2019	14,612	Disposed
May 23, 2017	SIGIP	Stock Option	Common Stock (6,275)	$23.93	March 3, 2018	6,275	Disposed
Oct. 30, 2015	SIGIP	Stock Option	Common Stock (5,031)	$24.54	March 1, 2017	5,031	Disposed
Oct. 30, 2015	SIGIP	Stock Option	Common Stock (4,238)	$27.19	March 1, 2016	4,238	Disposed
Oct. 31, 2014	SIGIP	Stock Option	Common Stock (6,000)	$23.18	March 1, 2015	6,000	Disposed
May 3, 2013	SIGIP	Stock Option	Common Stock (6,000)	$18.58	March 1, 2014	6,000	Disposed
May 3, 2012	SIGIP	Stock Option	Common Stock (6,000)	$11.78	March 3, 2013	6,000	Disposed
Oct. 28, 2011	SIGIP	Stock Option	Common Stock (6,000)	$11.34	March 1, 2012	6,000	Disposed
April 30, 2010	SIGIP	Stock Option	Common Stock (7,953)	$16.71	April 30, 2020	7,953	Acquired
April 30, 2010	SIGIP	Stock Option	Common Stock (6,000)	$10.83	March 1, 2011	6,000	Disposed
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
Oct. 29, 2007	SIGIP	Stock Option	Common Stock (6,000)	$13.56	March 2, 2008	6,000	Disposed
March 1, 2007	SIGIP	Stock Option	Common Stock (5,031)	$24.54	March 1, 2017	5,031	Acquired
Nov. 9, 2006	SIGIP	Stock Option	Common Stock (3,000)	$20.81	March 3, 2007	3,000	Disposed
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
March 1, 2005	SIGIP	Stock Option	Common Stock (3,000)	$46.36	March 1, 2015	3,000	Acquired
Nov. 15, 2004	SIGIP	Stock Option	Common Stock (3,000)	$18.31	March 1, 2009	3,000	Disposed
Nov. 15, 2004	SIGIP	Stock Option	Common Stock (3,000)	$18.31	March 1, 2006	3,000	Disposed
Nov. 15, 2004	SIGIP	Stock Option	Common Stock (3,000)	$15.23	March 1, 2010	3,000	Disposed
March 1, 2004	SIGIP	Stock Option	Common Stock (3,000)	$37.15	March 1, 2014	3,000	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
Aug. 4, 2015	SIGIP	Common Stock	17,974	Direct
Aug. 4, 2015	SIGIP	Stock Option→ Common Stock (14,612)	14,612	Direct
Aug. 4, 2015	SIGIP	Stock Option→ Common Stock (7,953)	7,953	Direct
Aug. 4, 2015	SIGIP	Stock Option→ Common Stock (6,275)	6,275	Direct
Aug. 4, 2015	SIGIP	Stock Option→ Common Stock (5,031)	5,031	Direct
Aug. 4, 2015	SIGIP	Stock Option→ Common Stock (4,238)	4,238	Direct