Neil M Koehler

CIK 1320697 · View on SEC EDGAR ↗

Insider

First SEC filing: Feb. 27, 2009 · Latest: Feb. 27, 2009

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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.
Compensation Executive pay disclosed in company proxy statements.

Insider at

ALTO buying Aug. 26, 2020

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 33 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

33 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Oct. 14, 2020	ALTO	F	55,155	$9.55	$526,730	866,544 Direct	-5.98%	Disposed	-55.7% (price as of 2026-08-20)
Aug. 26, 2020	ALTO	P	33,789	$3.36	$113,531	921,699 Direct	+3.81%	Acquired	25.9% (price as of 2026-08-20)
Aug. 26, 2020	ALTO	P	2	$3.36	$7	887,910 Direct	0.00%	Acquired	25.9% (price as of 2026-08-20)
Aug. 26, 2020	ALTO	P	9,216	$3.35	$30,874	887,908 Direct	+1.05%	Acquired	26.3% (price as of 2026-08-20)
Aug. 26, 2020	ALTO	P	6,258	$3.34	$20,902	878,692 Direct	+0.72%	Acquired	26.6% (price as of 2026-08-20)
Aug. 26, 2020	ALTO	P	735	$3.30	$2,426	872,434 Direct	+0.08%	Acquired	28.2% (price as of 2026-08-20)
June 11, 2020	ALTO	P	1,883	$0.67	$1,262	871,699 Direct	+0.22%	Acquired	531.3% (price as of 2026-08-20)
April 1, 2020	ALTO	F	63,169	$0.25	$15,792	869,816 Direct	-6.77%	Disposed	1592.0% (price as of 2026-08-20)
Aug. 22, 2019	ALTO	P	100,000	$0.57	$57,000	932,985 Direct	+12.01%	Acquired	642.1% (price as of 2026-08-20)
June 16, 2016	ALTO	A	100,000	—	—	470,895 Direct	+26.96%	Acquired	(price as of 2026-08-20)
April 1, 2016	ALTO	F	17,168	$4.40	$75,539	370,895 Direct	-4.42%	Disposed	-3.9% (price as of 2026-08-20)
Nov. 10, 2015	ALTO	P	10,000	$4.60	$46,000	388,063 Direct	+2.65%	Acquired	-8.0% (price as of 2026-08-20)
Nov. 9, 2015	ALTO	P	10,000	$4.95	$49,500	378,063 Direct	+2.72%	Acquired	-14.5% (price as of 2026-08-20)
Aug. 7, 2015	ALTO	P	15,000	$7.45	$111,750	368,063 Direct	+4.25%	Acquired	-43.2% (price as of 2026-08-20)
April 1, 2015	ALTO	F	23,395	$11.15	$260,854	353,063 Direct	-6.21%	Disposed	-62.1% (price as of 2026-08-20)
March 17, 2015	ALTO	A	47,847	—	—	376,458 Direct	+14.56%	Acquired	(price as of 2026-08-20)
Aug. 22, 2014	ALTO	S	25,000	$21.27	$531,750	328,611 Direct	-7.07%	Disposed	-80.1% (price as of 2026-08-20)
June 18, 2014	ALTO	A	33,944	—	—	353,611 Direct	+10.62%	Acquired	(price as of 2026-08-20)
May 28, 2014	ALTO	A	17,270	—	—	319,667 Direct	+5.71%	Acquired	(price as of 2026-08-20)
April 1, 2014	ALTO	F	16,179	$17.90	$289,604	302,397 Direct	-5.08%	Disposed	-76.4% (price as of 2026-08-20)
Nov. 19, 2013	ALTO	P	15,000	$2.55	$38,250	318,576 Direct	+4.94%	Acquired	65.9% (price as of 2026-08-20)
Nov. 19, 2013	ALTO	P	15,000	—	—	318,576 Direct	+4.94%	Acquired	(price as of 2026-08-20)
Sept. 17, 2013	ALTO	A	28,247	—	—	303,576 Direct	+10.26%	Acquired	(price as of 2026-08-20)
July 31, 2013	ALTO	A	25,082	—	—	275,329 Direct	+10.02%	Acquired	(price as of 2026-08-20)
June 24, 2013	ALTO	A	113,379	—	—	113,379 Direct	—	Acquired	(price as of 2026-08-20)
June 24, 2013	ALTO	A	55,556	—	—	250,247 Direct	+28.54%	Acquired	(price as of 2026-08-20)
April 12, 2013	ALTO	A	250,000	—	—	2,920,356 Direct	+9.36%	Acquired	(price as of 2026-08-20)
March 28, 2013	ALTO	A	300,000	—	—	2,670,356 Direct	+12.66%	Acquired	(price as of 2026-08-20)
March 28, 2013	ALTO	A	300,000	—	—	2,920,356 Direct	+11.45%	Acquired	(price as of 2026-08-20)
March 1, 2013	ALTO	A	1,000,000	—	—	2,370,356 Direct	+72.97%	Acquired	(price as of 2026-08-20)
March 1, 2013	ALTO	A	1,250,000	—	—	2,620,356 Direct	+91.22%	Acquired	(price as of 2026-08-20)
Dec. 31, 2012	ALTO	A	311,301	$0.34	$105,842	1,370,356 Direct	+29.39%	Acquired	-17.1% (price as of 2026-08-20)
Aug. 24, 2012	ALTO	A	338,709	$0.31	$105,000	1,059,055 Direct	+47.02%	Acquired	-9.0% (price as of 2026-08-20)
Sept. 9, 2011	ALTO	P	26,800	$0.37	$9,916	720,346 Direct	+3.86%	Acquired	-23.8% (price as of 2026-08-20)
Sept. 9, 2011	ALTO	P	8,200	$0.37	$3,034	693,546 Direct	+1.20%	Acquired	-23.8% (price as of 2026-08-20)
Aug. 24, 2011	ALTO	P	35,200	$0.34	$11,968	685,346 Direct	+5.41%	Acquired	-17.1% (price as of 2026-08-20)
Aug. 24, 2011	ALTO	P	4,800	$0.34	$1,632	650,146 Direct	+0.74%	Acquired	-17.1% (price as of 2026-08-20)
Aug. 22, 2011	ALTO	P	2,500	$0.34	$850	614,646 Direct	+0.41%	Acquired	-17.1% (price as of 2026-08-20)
Aug. 22, 2011	ALTO	P	100	$0.34	$34	614,746 Direct	+0.02%	Acquired	-17.1% (price as of 2026-08-20)
Aug. 22, 2011	ALTO	P	30,600	$0.34	$10,404	645,346 Direct	+4.98%	Acquired	-17.1% (price as of 2026-08-20)
Aug. 22, 2011	ALTO	P	11,800	$0.34	$4,012	612,146 Direct	+1.97%	Acquired	-17.1% (price as of 2026-08-20)
Aug. 18, 2011	ALTO	P	2,840	$0.37	$1,051	600,346 Direct	+0.48%	Acquired	-23.8% (price as of 2026-08-20)
Aug. 18, 2011	ALTO	P	2,900	$0.37	$1,073	597,506 Direct	+0.49%	Acquired	-23.8% (price as of 2026-08-20)
Aug. 18, 2011	ALTO	P	16,800	$0.37	$6,216	594,606 Direct	+2.91%	Acquired	-23.8% (price as of 2026-08-20)
Aug. 18, 2011	ALTO	P	100	$0.37	$37	577,806 Direct	+0.02%	Acquired	-23.8% (price as of 2026-08-20)
Aug. 18, 2011	ALTO	P	7,100	$0.37	$2,627	577,706 Direct	+1.24%	Acquired	-23.8% (price as of 2026-08-20)
Aug. 18, 2011	ALTO	P	260	$0.37	$96	570,606 Direct	+0.05%	Acquired	-23.8% (price as of 2026-08-20)
Aug. 1, 2011	ALTO	A	56,250	—	—	56,250 Direct	—	Acquired	(price as of 2026-08-20)
Aug. 1, 2011	ALTO	A	71,429	—	—	570,346 Direct	+14.32%	Acquired	(price as of 2026-08-20)
Oct. 20, 2010	ALTO	A	750,000	—	—	3,492,413 Direct	+27.35%	Acquired	(price as of 2026-08-20)
Jan. 28, 2010	ALTO	A	250,000	—	—	2,742,413 Direct	+10.03%	Acquired	(price as of 2026-08-20)
Sept. 18, 2009	ALTO	G	300,000	—	—	2,492,413 Direct	-10.74%	Disposed	(price as of 2026-08-20)
April 1, 2009	ALTO	F	5,957	$0.33	$1,966	2,792,413 Direct	-0.21%	Disposed	-87.8% (price as of 2026-08-20)
May 22, 2008	ALTO	P	384,615	—	—	384,615 Direct	—	Acquired	(price as of 2026-08-20)
May 22, 2008	ALTO	P	256,410	—	—	256,410 Direct	—	Acquired	(price as of 2026-08-20)
April 8, 2008	ALTO	A	79,908	—	—	3,238,535 Direct	+2.53%	Acquired	(price as of 2026-08-20)
May 14, 2007	ALTO	S 10b5-1	2,912	$16.00	$46,592	3,198,627 Direct	-0.09%	Disposed	-99.7% (price as of 2026-08-20)
April 10, 2007	ALTO	S	800	$16.39	$13,112	3,205,461 Direct	-0.02%	Disposed	-99.8% (price as of 2026-08-20)
April 10, 2007	ALTO	S	1,700	$16.38	$27,846	3,206,261 Direct	-0.05%	Disposed	-99.8% (price as of 2026-08-20)
April 10, 2007	ALTO	S	1,300	$16.37	$21,281	3,207,961 Direct	-0.04%	Disposed	-99.8% (price as of 2026-08-20)
April 10, 2007	ALTO	S	1,200	$16.36	$19,632	3,209,261 Direct	-0.04%	Disposed	-99.8% (price as of 2026-08-20)
April 10, 2007	ALTO	S	2,100	$16.35	$34,335	3,210,461 Direct	-0.07%	Disposed	-99.8% (price as of 2026-08-20)
April 10, 2007	ALTO	S	300	$16.33	$4,899	3,212,561 Direct	-0.01%	Disposed	-99.8% (price as of 2026-08-20)
April 10, 2007	ALTO	S	200	$16.32	$3,264	3,212,861 Direct	-0.01%	Disposed	-99.8% (price as of 2026-08-20)
April 10, 2007	ALTO	S	600	$16.31	$9,786	3,213,061 Direct	-0.02%	Disposed	-99.8% (price as of 2026-08-20)
April 10, 2007	ALTO	S	600	$16.30	$9,780	3,213,661 Direct	-0.02%	Disposed	-99.8% (price as of 2026-08-20)
April 10, 2007	ALTO	S	300	$16.29	$4,887	3,214,261 Direct	-0.01%	Disposed	-99.8% (price as of 2026-08-20)
April 10, 2007	ALTO	S	100	$16.28	$1,628	3,214,561 Direct	0.00%	Disposed	-99.8% (price as of 2026-08-20)
April 10, 2007	ALTO	S	100	$16.27	$1,627	3,214,661 Direct	0.00%	Disposed	-99.8% (price as of 2026-08-20)
April 10, 2007	ALTO	S	300	$16.26	$4,878	3,214,761 Direct	-0.01%	Disposed	-99.8% (price as of 2026-08-20)
April 10, 2007	ALTO	S	1,400	$16.25	$22,750	3,215,061 Direct	-0.04%	Disposed	-99.8% (price as of 2026-08-20)
April 10, 2007	ALTO	S	3,160	$16.24	$51,318	3,216,461 Direct	-0.10%	Disposed	-99.8% (price as of 2026-08-20)
April 10, 2007	ALTO	S	3,130	$16.23	$50,800	3,219,621 Direct	-0.10%	Disposed	-99.8% (price as of 2026-08-20)
April 10, 2007	ALTO	S	2,625	$16.22	$42,578	3,222,751 Direct	-0.08%	Disposed	-99.8% (price as of 2026-08-20)
April 10, 2007	ALTO	S	2,675	$16.21	$43,362	3,225,376 Direct	-0.08%	Disposed	-99.8% (price as of 2026-08-20)
April 10, 2007	ALTO	S	6,230	$16.20	$100,926	3,228,051 Direct	-0.19%	Disposed	-99.8% (price as of 2026-08-20)
April 10, 2007	ALTO	S	7,420	$16.19	$120,130	3,234,281 Direct	-0.23%	Disposed	-99.8% (price as of 2026-08-20)
April 10, 2007	ALTO	S	12,537	$16.18	$202,849	3,241,701 Direct	-0.39%	Disposed	-99.8% (price as of 2026-08-20)
April 10, 2007	ALTO	S	6,371	$16.17	$103,019	3,254,238 Direct	-0.20%	Disposed	-99.8% (price as of 2026-08-20)
April 10, 2007	ALTO	S	4,700	$16.16	$75,952	3,260,609 Direct	-0.14%	Disposed	-99.8% (price as of 2026-08-20)
April 10, 2007	ALTO	S	8,148	$16.15	$131,590	3,265,309 Direct	-0.25%	Disposed	-99.8% (price as of 2026-08-20)
April 10, 2007	ALTO	S	4,052	$16.14	$65,399	3,273,457 Direct	-0.12%	Disposed	-99.8% (price as of 2026-08-20)
April 10, 2007	ALTO	S	8,800	$16.13	$141,944	3,277,509 Direct	-0.27%	Disposed	-99.8% (price as of 2026-08-20)
April 10, 2007	ALTO	S	5,200	$16.12	$83,824	3,286,309 Direct	-0.16%	Disposed	-99.8% (price as of 2026-08-20)
April 10, 2007	ALTO	S	2,580	$16.11	$41,564	3,291,509 Direct	-0.08%	Disposed	-99.7% (price as of 2026-08-20)
April 10, 2007	ALTO	S	7,350	$16.10	$118,335	3,294,089 Direct	-0.22%	Disposed	-99.7% (price as of 2026-08-20)
April 10, 2007	ALTO	S	100	$16.08	$1,608	3,301,439 Direct	0.00%	Disposed	-99.7% (price as of 2026-08-20)
April 10, 2007	ALTO	S	150	$16.56	$2,484	3,201,539 Direct	0.00%	Disposed	-99.8% (price as of 2026-08-20)
April 10, 2007	ALTO	S	1,000	$16.54	$16,540	3,201,689 Direct	-0.03%	Disposed	-99.8% (price as of 2026-08-20)
April 10, 2007	ALTO	S	1,017	$16.46	$16,740	3,202,689 Direct	-0.03%	Disposed	-99.8% (price as of 2026-08-20)
April 10, 2007	ALTO	S	1,555	$16.41	$25,518	3,203,706 Direct	-0.05%	Disposed	-99.8% (price as of 2026-08-20)
April 10, 2007	ALTO	S	200	$16.40	$3,280	3,205,261 Direct	-0.01%	Disposed	-99.8% (price as of 2026-08-20)
March 29, 2007	ALTO	G	250,000	—	—	3,301,539 Direct	-7.04%	Disposed	(price as of 2026-08-20)
March 29, 2007	ALTO	G	105,000	—	—	3,551,539 Direct	-2.87%	Disposed	(price as of 2026-08-20)
Feb. 27, 2007	ALTO	G	15,000	—	—	3,656,539 Direct	-0.41%	Disposed	(price as of 2026-08-20)
Feb. 27, 2007	ALTO	G	10,000	—	—	3,671,539 Direct	-0.27%	Disposed	(price as of 2026-08-20)
Nov. 3, 2006	ALTO	G	200	—	—	3,681,539 Direct	-0.01%	Disposed	(price as of 2026-08-20)
Oct. 4, 2006	ALTO	A	93,600	—	—	3,681,739 Direct	+2.61%	Acquired	(price as of 2026-08-20)
April 19, 2006	ALTO	S	1,000	$31.99	$31,990	3,610,233 Direct	-0.03%	Disposed	-99.9% (price as of 2026-08-20)
April 19, 2006	ALTO	S	1,000	$31.99	$31,990	3,611,233 Direct	-0.03%	Disposed	-99.9% (price as of 2026-08-20)

Showing latest 100 of 388 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
June 24, 2013	ALTO	Stock Option (Right to Buy)	Common Stock (113,379)	$3.74	June 24, 2023	113,379	Acquired
Aug. 1, 2011	ALTO	Stock Option (Right to Buy) [F1]	Common Stock (56,250)	$0.86	Aug. 1, 2021	56,250	Acquired
May 22, 2008	ALTO	Common Stock Warrant (Right to Buy)	Common Stock (384,615)	$7.00	May 22, 2018	384,615	Acquired
May 22, 2008	ALTO	Series B Cumulative Convertible Preferred Stock	Common Stock (769,230)	—	—	256,410	Acquired

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

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

ALTO

Chief Executive

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2020	$382,034	—	—	—	—	—	$149,263	$531,297
2019	$489,305	—	$187,040	—	—	—	$18,600	$694,945
2017	$472,487	—	$500,000	—	$66,148	—	$17,700	$1,056,335

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.