Thomas L Winton

Insider

First SEC filing: April 14, 2008 · Latest: April 14, 2008

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

Insider at

SD buying Sept. 13, 2011

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 40 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

40 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Jan. 14, 2012	SD	F	2,140	$8.05	$17,227	205,203 Direct	-1.03%	Disposed	80.0% (price as of 2026-08-20)
Jan. 13, 2012	SD	A	27,000	—	—	207,343 Direct	+14.97%	Acquired	(price as of 2026-08-20)
Jan. 11, 2012	SD	F	535	$8.47	$4,531	180,343 Direct	-0.30%	Disposed	71.1% (price as of 2026-08-20)
Jan. 9, 2012	SD	F	1,211	$8.50	$10,294	180,878 Direct	-0.67%	Disposed	70.5% (price as of 2026-08-20)
Jan. 8, 2012	SD	F	1,212	$8.54	$10,350	182,089 Direct	-0.66%	Disposed	69.7% (price as of 2026-08-20)
Jan. 3, 2012	SD	A	1,355	$8.30	$11,246	183,301 Direct	+0.74%	Acquired	74.6% (price as of 2026-08-20)
Oct. 3, 2011	SD	A	6,638	$5.07	$33,655	181,946 Direct	+3.79%	Acquired	185.8% (price as of 2026-08-20)
Sept. 13, 2011	SD	P	2,000	$6.90	$13,800	173,308 Direct	+1.17%	Acquired	110.0% (price as of 2026-08-20)
Sept. 13, 2011	SD	P	2,000	$6.95	$13,900	175,308 Direct	+1.15%	Acquired	108.5% (price as of 2026-08-20)
July 11, 2011	SD	F	600	$10.28	$6,168	171,847 Direct	-0.35%	Disposed	41.0% (price as of 2026-08-20)
July 11, 2011	SD	F	539	$10.28	$5,541	171,308 Direct	-0.31%	Disposed	41.0% (price as of 2026-08-20)
July 10, 2011	SD	F	1,079	$10.83	$11,686	172,447 Direct	-0.62%	Disposed	33.8% (price as of 2026-08-20)
July 9, 2011	SD	F	1,798	$10.83	$19,472	173,526 Direct	-1.03%	Disposed	33.8% (price as of 2026-08-20)
July 8, 2011	SD	A	27,000	—	—	175,324 Direct	+18.20%	Acquired	(price as of 2026-08-20)
July 1, 2011	SD	A	1,004	$10.55	$10,592	148,324 Direct	+0.68%	Acquired	37.3% (price as of 2026-08-20)
April 1, 2011	SD	A	743	$13.01	$9,666	147,320 Direct	+0.51%	Acquired	11.4% (price as of 2026-08-20)
Jan. 14, 2011	SD	A	27,000	—	—	146,577 Direct	+22.58%	Acquired	(price as of 2026-08-20)
Jan. 11, 2011	SD	F	610	$7.80	$4,758	119,577 Direct	-0.51%	Disposed	85.8% (price as of 2026-08-20)
Jan. 10, 2011	SD	F	678	$7.85	$5,322	120,187 Direct	-0.56%	Disposed	84.6% (price as of 2026-08-20)
Jan. 9, 2011	SD	F	1,221	$7.81	$9,536	120,865 Direct	-1.00%	Disposed	85.5% (price as of 2026-08-20)
Jan. 8, 2011	SD	F	1,221	$7.81	$9,536	122,086 Direct	-0.99%	Disposed	85.5% (price as of 2026-08-20)
Jan. 3, 2011	SD	A	1,378	$7.54	$10,390	123,307 Direct	+1.13%	Acquired	92.2% (price as of 2026-08-20)
Oct. 5, 2010	SD	A	5,258	$5.87	$30,864	121,929 Direct	+4.51%	Acquired	146.8% (price as of 2026-08-20)
Aug. 18, 2010	SD	P	5,000	$4.50	$22,500	116,671 Direct	+4.48%	Acquired	222.0% (price as of 2026-08-20)
July 9, 2010	SD	A	22,500	—	—	111,671 Direct	+25.23%	Acquired	(price as of 2026-08-20)
July 6, 2010	SD	A	1,760	$5.90	$10,384	89,171 Direct	+2.01%	Acquired	145.6% (price as of 2026-08-20)
May 24, 2010	SD	P	2,000	$5.50	$11,000	85,411 Direct	+2.40%	Acquired	163.5% (price as of 2026-08-20)
May 24, 2010	SD	P	2,000	$5.75	$11,500	87,411 Direct	+2.34%	Acquired	152.0% (price as of 2026-08-20)
May 21, 2010	SD	P	1,000	$5.85	$5,850	83,411 Direct	+1.21%	Acquired	147.7% (price as of 2026-08-20)
April 5, 2010	SD	A	1,160	$7.58	$8,793	82,411 Direct	+1.43%	Acquired	91.2% (price as of 2026-08-20)
Jan. 11, 2010	SD	F	539	$10.34	$5,573	81,251 Direct	-0.66%	Disposed	40.1% (price as of 2026-08-20)
Jan. 10, 2010	SD	F	599	$10.84	$6,493	81,790 Direct	-0.73%	Disposed	33.7% (price as of 2026-08-20)
Jan. 9, 2010	SD	F	1,078	$10.84	$11,686	82,389 Direct	-1.29%	Disposed	33.7% (price as of 2026-08-20)
Jan. 8, 2010	SD	A	13,500	—	—	83,467 Direct	+19.29%	Acquired	(price as of 2026-08-20)
Jan. 4, 2010	SD	A	982	$10.12	$9,938	69,967 Direct	+1.42%	Acquired	43.2% (price as of 2026-08-20)
Oct. 7, 2009	SD	A	2,127	$13.08	$27,821	68,985 Direct	+3.18%	Acquired	10.8% (price as of 2026-08-20)
July 10, 2009	SD	A	13,500	—	—	66,858 Direct	+25.30%	Acquired	(price as of 2026-08-20)
July 1, 2009	SD	A	1,305	$8.61	$11,236	53,358 Direct	+2.51%	Acquired	68.3% (price as of 2026-08-20)
March 30, 2009	SD	A	515	$6.57	$3,384	52,053 Direct	+1.00%	Acquired	120.5% (price as of 2026-08-20)
Jan. 9, 2009	SD	A	13,500	—	—	51,538 Direct	+35.49%	Acquired	(price as of 2026-08-20)
Oct. 17, 2008	SD	A	2,057	$11.62	$23,902	36,527 Direct	+5.97%	Acquired	24.7% (price as of 2026-08-20)
July 14, 2008	SD	A	462	$35.86	$16,567	34,184 Direct	+1.37%	Acquired	-59.6% (price as of 2026-08-20)
July 14, 2008	SD	A	109	$39.15	$4,267	34,293 Direct	+0.32%	Acquired	-63.0% (price as of 2026-08-20)
July 14, 2008	SD	A	177	$60.53	$10,714	34,470 Direct	+0.52%	Acquired	-76.1% (price as of 2026-08-20)
July 11, 2008	SD	A	6,750	—	—	33,722 Direct	+25.03%	Acquired	(price as of 2026-08-20)
Jan. 10, 2008	SD	A	6,750	—	—	26,528 Direct	+34.13%	Acquired	(price as of 2026-08-20)
Nov. 9, 2007	SD	P	4,000	$26.00	$104,000	19,778 Direct	+25.35%	Acquired	-44.3% (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.

Initial ownership (Form 3) 2 holdings

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

Date	Ticker	Security	Shares	Ownership
April 14, 2008	SD	Common Stock	16,222	Direct
Nov. 5, 2007	SD	Common Stock	15,778	Direct