Mark M Gambill

Insider

First SEC filing: Aug. 12, 2009 · Latest: Feb. 6, 2018

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

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 27 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

27 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
July 1, 2026	NEU	A	157	—	—	4,149 Direct	+3.93%	Acquired	(price as of 2026-08-20)
July 1, 2025	NEU	A	144	—	—	3,992 Direct	+3.74%	Acquired	(price as of 2026-08-20)
July 1, 2024	NEU	A	193	—	—	3,848 Direct	+5.28%	Acquired	(price as of 2026-08-20)
July 3, 2023	NEU	A	223	—	—	3,655 Direct	+6.50%	Acquired	(price as of 2026-08-20)
July 1, 2022	NEU	A	299	—	—	3,432 Direct	+9.54%	Acquired	(price as of 2026-08-20)
July 1, 2021	NEU	A	279	—	—	3,133 Direct	+9.78%	Acquired	(price as of 2026-08-20)
July 1, 2020	NEU	A	224	—	—	2,854 Direct	+8.52%	Acquired	(price as of 2026-08-20)
July 1, 2019	NEU	A	224	—	—	2,630 Direct	+9.31%	Acquired	(price as of 2026-08-20)
July 2, 2018	NEU	A	222	—	—	2,406 Direct	+10.16%	Acquired	(price as of 2026-08-20)
May 2, 2018	BBDC	A	4,351	$11.49	$49,993	34,301 Direct	+14.53%	Acquired	-18.5% (price as of 2026-08-20)
July 3, 2017	NEU	A	130	—	—	2,184 Direct	+6.33%	Acquired	(price as of 2026-08-20)
May 3, 2017	BBDC	A	2,694	—	—	27,381 Direct	+10.91%	Acquired	(price as of 2026-08-20)
July 1, 2016	NEU	A	144	—	—	2,054 Direct	+7.54%	Acquired	(price as of 2026-08-20)
May 25, 2016	BBDC	A	2,721	—	—	22,928 Direct	+13.47%	Acquired	(price as of 2026-08-20)
July 1, 2015	NEU	A	112	—	—	1,910 Direct	+6.23%	Acquired	(price as of 2026-08-20)
May 6, 2015	BBDC	A	2,168	—	—	18,666 Direct	+13.14%	Acquired	(price as of 2026-08-20)
July 1, 2014	NEU	A	127	—	—	1,798 Direct	+7.60%	Acquired	(price as of 2026-08-20)
May 7, 2014	BBDC	A	1,926	—	—	15,434 Direct	+14.26%	Acquired	(price as of 2026-08-20)
July 1, 2013	NEU	A	114	—	—	1,671 Direct	+7.32%	Acquired	(price as of 2026-08-20)
May 8, 2013	BBDC	A	1,682	—	—	12,915 Direct	+14.97%	Acquired	(price as of 2026-08-20)
Jan. 30, 2013	NEU	P	500	$256.07	$128,035	1,557 Direct	+47.30%	Acquired	262.2% (price as of 2026-08-20)
July 2, 2012	NEU	A	138	—	—	1,057 Direct	+15.02%	Acquired	(price as of 2026-08-20)
May 11, 2012	BBDC	P	5,000	$20.00	$100,000	10,744 Direct	+87.05%	Acquired	-53.2% (price as of 2026-08-20)
May 2, 2012	BBDC	A	1,491	—	—	5,744 Direct	+35.06%	Acquired	(price as of 2026-08-20)
July 1, 2011	NEU	A	117	—	—	919 Direct	+14.59%	Acquired	(price as of 2026-08-20)
May 4, 2011	BBDC	A	1,679	—	—	3,885 Direct	+76.11%	Acquired	(price as of 2026-08-20)
July 1, 2010	NEU	A	229	—	—	1,256 Direct	+22.30%	Acquired	(price as of 2026-08-20)
May 5, 2010	BBDC	A	2,089	—	—	2,089 Direct	—	Acquired	(price as of 2026-08-20)
July 1, 2009	NEU	A	297	—	—	1,027 Direct	+40.68%	Acquired	(price as of 2026-08-20)
June 25, 2009	NEU	S	222	$66.69	$14,805	276 Direct	-44.58%	Disposed	1290.6% (price as of 2026-08-20)
May 28, 2009	NEU	S	232	$71.15	$16,507	498 Direct	-31.78%	Disposed	1203.4% (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
Aug. 12, 2009	BBDC	No securities are beneficially owned	0	Direct
Jan. 20, 2009	NEU	Common Stock	730	Direct