Impax Asset Management 13F-HR Quarterly holdings report by institutional manager

The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F INFORMATION TABLE

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COLUMN 1	COLUMN 2	COLUMN 3	COLUMN 4	COLUMN 5			COLUMN 6	COLUMN 7	COLUMN 8
			VALUE	SHRS OR	SH/	PUT/	INVESTMENT	OTHER	VOTING AUTHORITY
NAME OF ISSUER	TITLE OF CLASS	CUSIP	(x$1000)	PRN AMT	PRN	CALL	DISCRETION	MANAGER	SOLE	SHARED	NONE
3M Co.	COM	88579Y101	17,218	114,298	SH		SOLE		114,298	0	0
ACE, Ltd.	SHS	H0023R105	18,842	161,252	SH		SOLE		161,252	0	0
ACI Worldwide, Inc.	COM	004498101	14,829	692,938	SH		SOLE		692,938	0	0
AT&T, Inc.	COM	00206R102	24,178	702,644	SH		DFND	1	702,644	0	0
AbbVie, Inc.	COM	00287Y109	17,207	290,462	SH		SOLE		290,462	0	0
Abbott Laboratories	COM	002824100	6,103	135,883	SH		DFND	1	135,883	0	0
Accenture PLC, Class A	SHS CLASS A	G1151C101	344	3,292	SH		SOLE	1	3,292	0	0
Aetna, Inc.	COM	00817Y108	1,521	14,071	SH		SOLE	1	14,071	0	0
Agilent Technologies, Inc.	COM	00846U101	2,855	68,296	SH		SOLE		68,296	0	0
Alexion Pharmaceuticals, Inc.	COM	015351109	200	1,049	SH		SOLE		1,049	0	0
Alleghany Corp.	COM	017175100	15,649	32,744	SH		SOLE		32,744	0	0
Alphabet, Inc., Class A	CAP STK CL A	02079K305	33,556	43,130	SH		DFND	1	43,130	0	0
Alphabet, Inc., Class C	CAP STK CL C	02079K107	30,015	39,551	SH		DFND	1	39,551	0	0
Amazon.com, Inc.	COM	023135106	32,508	48,096	SH		SOLE		48,096	0	0
Amdocs, Ltd.	SHS	G02602103	9,932	182,003	SH		SOLE		182,003	0	0
American Express Co.	COM	025816109	2,440	35,085	SH		SOLE		35,085	0	0
American Tower Corp., REIT	COM	03027X100	35,583	367,020	SH		DFND	1	367,020	0	0
American Water Works Co., Inc.	COM	030420103	3,289	55,041	SH		DFND	1	55,041	0	0
Apache Corp.	COM	037411105	5,367	120,693	SH		SOLE		120,693	0	0
Apple, Inc.	COM	037833100	56,924	540,790	SH		SOLE		540,790	0	0
Axiall Corp.	COM	05463D100	6,715	436,042	SH		SOLE		436,042	0	0
Bank of America Corp.	COM	060505104	870	51,700	SH		SOLE	1	51,700	0	0
Bank of New York Mellon Corp., The	COM	064058100	25,651	622,284	SH		SOLE		622,284	0	0
Becton Dickinson & Co.	COM	075887109	41,155	267,083	SH		DFND	1	267,083	0	0
Beneficial Bancorp, Inc.	COM	08171T102	4,962	372,487	SH		SOLE		372,487	0	0
Berkshire Hathaway, Inc., Class B	CL B NEW	084670702	802	6,076	SH		SOLE	1	6,076	0	0
Berkshire Hills Bancorp, Inc.	COM	084680107	7,649	262,759	SH		SOLE		262,759	0	0
Biogen, Inc.	COM	09062X103	1,950	6,365	SH		DFND	1	6,365	0	0
BlackRock, Inc.	COM	09247X101	17,906	52,584	SH		SOLE		52,584	0	0
BorgWarner, Inc.	COM	099724106	2,219	51,327	SH		SOLE		51,327	0	0
Bristol-Myers Squibb Co.	COM	110122108	3,739	54,347	SH		DFND	1	54,347	0	0
Brookdale Senior Living, Inc.	COM	112463104	15,968	864,999	SH		SOLE		864,999	0	0
CBRE Group, Inc., Class A	CL A	12504L109	2,073	59,938	SH		SOLE		59,938	0	0
CVS Health Corp.	COM	126650100	1,916	19,600	SH		DFND	1	19,600	0	0
Cabela's, Inc.	COM	126804301	21,013	449,679	SH		SOLE		449,679	0	0
Capitol Federal Financial, Inc.	COM	14057j101	25,265	2,011,566	SH		SOLE		2,011,566	0	0
Carter's, Inc.	COM	146229109	13,889	156,006	SH		SOLE		156,006	0	0
Celgene Corp.	COM	151020104	27,101	226,292	SH		SOLE		226,292	0	0
Charles Schwab Corp., The	COM	808513105	17,148	520,726	SH		SOLE		520,726	0	0
Cisco Systems, Inc.	COM	17275R102	750	27,603	SH		SOLE	1	27,603	0	0
Citigroup, Inc.	COM	172967424	25,398	490,776	SH		SOLE		490,776	0	0
Coca-Cola Co., The	COM	191216100	897	20,881	SH		SOLE	1	20,881	0	0
Coca-Cola Enterprises, Inc.	COM	19122T109	1,520	30,878	SH		SOLE	1	30,878	0	0
Cognizant Technology Solutions, Class A	CL A	192446102	23,034	383,765	SH		SOLE		383,765	0	0
Colgate-Palmolive Co.	COM	194162103	291	4,372	SH		SOLE	1	4,372	0	0
ConocoPhillips	COM	20825C104	7,313	156,626	SH		DFND	1	156,626	0	0
Core Laboratories NV	COM	N22717107	3,301	30,358	SH		DFND	1	30,358	0	0
Cummins, Inc.	COM	231021106	1,345	15,278	SH		DFND	1	15,278	0	0
Dominion Resources, Inc.	COM	25746U109	225	3,320	SH		SOLE	1	3,320	0	0
Duke Energy Corp.	COM	26441C204	271	3,803	SH		SOLE	1	3,803	0	0
EMC Corp.	COM	268648102	2,585	100,667	SH		SOLE		100,667	0	0
EMCOR Group, Inc.	COM	29084Q100	10,809	225,000	SH		SOLE		225,000	0	0
EQT Corp.	COM	26884L109	2,763	52,994	SH		SOLE		52,994	0	0
Eaton Corp PLC	SHS	G29183103	1,981	38,074	SH		SOLE		38,074	0	0
Ecolab, Inc.	COM	278865100	8,669	75,789	SH		DFND	1	75,789	0	0
Eli Lilly & Co.	COM	532457108	429	5,092	SH		SOLE	1	5,092	0	0
Estee Lauder Cos, Inc., Class A	CL A	518439104	27,106	307,811	SH		DFND	1	307,811	0	0
Eversource Energy	COM	30040W108	12,709	248,855	SH		SOLE		248,855	0	0
ExlService Holdings, Inc.	COM	302081104	11,888	264,599	SH		SOLE		264,599	0	0
Expeditors Int. of Washington, Inc.	COM	302130109	8,621	191,157	SH		SOLE		191,157	0	0
Express Scripts Holding Co.	COM	30219G108	25,991	297,349	SH		SOLE		297,349	0	0
FBR & Co.	COM	30247C400	4,690	235,676	SH		SOLE		235,676	0	0
Facebook, Inc., Class A	CL A	30303M102	19,607	187,340	SH		DFND	1	187,340	0	0
Fox Chase Bancorp, Inc.	COM	35137T108	11,496	566,599	SH		SOLE		566,599	0	0
Frontier Communications Corp.	COM	35906A108	167	35,752	SH		SOLE	1	35,752	0	0
General Mills, Inc.	COM	370334104	20,032	347,413	SH		DFND	1	347,413	0	0
Gilead Sciences, Inc.	COM	375558103	18,736	185,154	SH		DFND	1	185,154	0	0
Goldman Sachs Group, Inc., The	COM	38141G104	19,406	107,672	SH		SOLE		107,672	0	0
HP, Inc.	COM	40434L105	236	19,954	SH		SOLE	1	19,954	0	0
Hercules Technology Growth Capital, Inc.	COM	427096508	1,048	86,000	SH		SOLE		86,000	0	0
Hologic, Inc.	COM	436440101	8,050	208,058	SH		DFND	1	208,058	0	0
Home Depot, Inc., The	COM	437076102	26,055	197,010	SH		DFND	1	197,010	0	0
HomeTrust Bancshares, Inc.	COM	437872104	11,490	567,383	SH		SOLE		567,383	0	0
IBM	COM	459200101	715	5,194	SH		DFND	1	5,194	0	0
ICF International, Inc.	COM	44925C103	9,054	254,614	SH		SOLE		254,614	0	0
ICON PLC	SHS	G4705A100	2,564	33,000	SH		SOLE		33,000	0	0
Independent Bank Corp.	COM	453836108	11,017	236,828	SH		SOLE		236,828	0	0
Ingersoll-Rand PLC	SHS	G47791101	10,045	181,685	SH		DFND	1	181,685	0	0
Ingram Micro, Inc., Class A	CL A	457153104	19,257	633,880	SH		SOLE		633,880	0	0
Intuit, Inc.	COM	461202103	2,403	24,902	SH		DFND	1	24,902	0	0
Investors Bancorp, Inc.	COM	46146L101	26,806	2,154,806	SH		SOLE		2,154,806	0	0
Jamba, Inc.	COM	47023A309	6,069	449,874	SH		SOLE		449,874	0	0
Johnson & Johnson	COM	478160104	29,225	284,511	SH		DFND	1	284,511	0	0
KLX, Inc.	COM	482539103	4,662	151,410	SH		SOLE		151,410	0	0
Kaiser Aluminum Corp.	COM PAR $0.01	483007704	5,803	69,365	SH		SOLE		69,365	0	0
Kearny Financial Corp/MD	COM	48716p108	10,718	845,972	SH		SOLE		845,972	0	0
Kellogg Co.	COM	487836108	1,495	20,681	SH		SOLE	1	20,681	0	0
KeyCorp	COM	493267108	1,226	92,984	SH		SOLE	1	92,984	0	0
Kimberly-Clark Corp.	COM	494368103	242	1,900	SH		SOLE	1	1,900	0	0
Knoll, Inc.	COM	498904200	9,037	480,693	SH		SOLE		480,693	0	0
Korn/Ferry International	COM	500643200	4,103	123,656	SH		SOLE		123,656	0	0
Kroger Co., The	COM	501044101	201	4,800	SH		SOLE	1	4,800	0	0
Laboratory Corp of America Holdings	COM	50540R409	5,847	47,293	SH		SOLE		47,293	0	0
Laclede Group, Inc., The	COM	505597104	21,477	361,508	SH		SOLE		361,508	0	0
Landstar System, Inc.	COM	515098101	1,777	30,293	SH		SOLE		30,293	0	0
Legg Mason, Inc.	COM	524901105	9,770	249,052	SH		SOLE		249,052	0	0
Libbey, Inc.	COM	529898108	860	40,339	SH		SOLE		40,339	0	0
Lowe's Cos., Inc.	COM	548661107	4,598	60,464	SH		SOLE		60,464	0	0
Lydall, Inc.	COM	550819106	4,241	119,521	SH		SOLE		119,521	0	0
LyondellBasell Industries NV, Class A	SHS - A -	N53745100	13,448	154,747	SH		SOLE		154,747	0	0
MRC Global, Inc.	COM	55345K103	11,425	885,692	SH		SOLE		885,692	0	0
Macy's, Inc.	COM	55616P104	2,550	72,885	SH		DFND	1	72,885	0	0
Marathon Petroleum Corp.	COM	56585A102	10,758	207,514	SH		SOLE		207,514	0	0
Marriott International, Inc., Class A	CL A	571903202	2,114	31,537	SH		DFND	1	31,537	0	0
Masco Corp.	COM	574599106	6,111	215,940	SH		SOLE		215,940	0	0
MasterCard, Inc., Class A	CL A	57636Q104	3,947	40,544	SH		DFND	1	40,544	0	0
McDonald's Corp.	COM	580135101	20,116	170,270	SH		SOLE		170,270	0	0
McKesson Corp.	COM	58155q103	237	1,200	SH		SOLE	1	1,200	0	0
Medtronic PLC	SHS	G5960L103	546	7,100	SH		SOLE	1	7,100	0	0
Men's Wearhouse, Inc., The	COM	587118100	3,217	219,152	SH		SOLE		219,152	0	0
Merck & Co., Inc.	COM	58933Y105	29,362	555,879	SH		SOLE		555,879	0	0
Meridian Bancorp, Inc.	COM	58958U103	12,847	911,107	SH		SOLE		911,107	0	0
MetLife, Inc.	COM	59156R108	233	4,835	SH		SOLE	1	4,835	0	0
Metaldyne Performance Group, Inc.	COM	59116R107	5,529	301,449	SH		SOLE		301,449	0	0
Michael Kors Holdings, Ltd.	SHS	G60754101	466	11,621	SH		DFND	1	11,621	0	0
Microsoft Corp.	COM	594918104	47,443	855,136	SH		DFND	1	855,136	0	0
Mondelez International, Inc., Class A	CL A	609207105	389	8,686	SH		SOLE	1	8,686	0	0
Morgan Stanley	COM	617446448	13,800	433,816	SH		SOLE		433,816	0	0
Mylan, Inc.	SHS EURO	N59465109	2,098	38,794	SH		SOLE		38,794	0	0
NIKE, Inc., Class B	CL B	654106103	15,021	240,332	SH		DFND	1	240,332	0	0
NN, Inc.	COM	629337106	5,068	317,963	SH		SOLE		317,963	0	0
NXP Semiconductors NV	COM	N6596X109	1,180	14,000	SH		SOLE		14,000	0	0
Natus Medical, Inc.	COM	639050103	13,012	270,800	SH		SOLE		270,800	0	0
Netflix, Inc.	COM	64110L106	229	2,002	SH		SOLE	1	2,002	0	0
Newell Rubbermaid, Inc.	COM	651229106	9,225	209,280	SH		SOLE		209,280	0	0
Newmont Mining Corp.	COM	651639106	12,392	688,806	SH		DFND	1	688,806	0	0
Nucor Corp.	COM	670346105	2,696	66,905	SH		SOLE		66,905	0	0
ONE Gas, Inc.	COM	68235P108	20,119	401,021	SH		SOLE		401,021	0	0
Occidental Petroleum Corp.	COM	674599105	13,882	205,328	SH		SOLE		205,328	0	0
Oracle Corp.	COM	68389x105	1,633	44,713	SH		SOLE		44,713	0	0
Oshkosh Corp.	COM	688239201	12,579	322,218	SH		SOLE		322,218	0	0
PNC Financial Services Group, Inc.	COM	693475105	6,172	64,756	SH		DFND	1	64,756	0	0
Parsley Energy, Inc., Class A	CL A	701877102	1,845	100,000	SH		SOLE		100,000	0	0
PayPal Holdings Inc	COM	70450Y103	2,962	81,821	SH		SOLE		81,821	0	0
PepsiCo, Inc.	COM	713448108	28,138	281,610	SH		DFND	1	281,610	0	0
Phillips 66	COM	718546104	224	2,739	SH		SOLE	1	2,739	0	0
Physicians Realty Trust, REIT	COM	71943U104	7,808	463,117	SH		SOLE		463,117	0	0
Pioneer Natural Resources Co.	COM	723787107	11,805	94,150	SH		SOLE		94,150	0	0
Planet Fitness, Inc., Class A	CL A	72703H101	5,451	348,760	SH		SOLE		348,760	0	0
Praxair, Inc.	COM	74005P104	2,683	26,205	SH		SOLE		26,205	0	0
Procter & Gamble Co., The	COM	742718109	24,014	302,408	SH		DFND	1	302,408	0	0
QUALCOMM, Inc.	COM	747525103	1,535	30,718	SH		SOLE		30,718	0	0
Quanta Services, Inc.	COM	74762E102	2,029	100,199	SH		SOLE		100,199	0	0
Red Hat, Inc.	COM	756577102	1,949	23,534	SH		SOLE		23,534	0	0
RenaissanceRe Holdings, Ltd.	COM	G7496G103	21,591	190,748	SH		SOLE		190,748	0	0
Roper Technologies, Inc.	COM	776696106	2,865	15,097	SH		SOLE		15,097	0	0
SM Energy Co.	COM	78454L100	1,376	70,000	SH		SOLE		70,000	0	0
Salesforce.com, Inc.	COM	79466L302	3,330	42,472	SH		SOLE		42,472	0	0
Sally Beauty Holdings, Inc.	COM	79546E104	17,914	642,300	SH		SOLE		642,300	0	0
Scripps Networks Interactive, Inc. Class A	CL A COM	811065101	1,405	25,452	SH		DFND	1	25,452	0	0
SolarCity Corp.	COM	83416T100	402	7,871	SH		SOLE		7,871	0	0
Sovran Self Storage, Inc., REIT	COM	84610H108	5,542	51,642	SH		SOLE		51,642	0	0
Stanley Black & Decker, Inc.	COM	854502101	22,358	209,485	SH		SOLE		209,485	0	0
Starbucks Corp.	COM	855244109	3,696	61,572	SH		SOLE		61,572	0	0
State Street Corp.	COM	857477103	2,445	36,852	SH		SOLE		36,852	0	0
SunPower Corp.	COM	867652406	1,716	57,172	SH		SOLE		57,172	0	0
Syntel, Inc.	COM	87162H103	18,165	401,440	SH		SOLE		401,440	0	0
T Rowe Price Group, Inc.	COM	74144T108	7,483	104,669	SH		SOLE		104,669	0	0
TEGNA, Inc.	COM	87901j105	332	13,000	SH		SOLE	1	13,000	0	0
TJX Cos., Inc., The	COM	872540109	255	3,600	SH		SOLE	1	3,600	0	0
Tableau Software, Inc., Class A	CL A	87336U105	1,167	12,387	SH		SOLE		12,387	0	0
Texas Instruments, Inc.	COM	882508104	3,310	60,385	SH		DFND	1	60,385	0	0
TheStreet, Inc.	COM	88368Q103	2,207	1,471,653	SH		SOLE		1,471,653	0	0
Thermo Fisher Scientific, Inc.	COM	883556102	5,554	39,151	SH		SOLE		39,151	0	0
Thermon Group Holdings, Inc.	COM	88362t103	8,031	474,623	SH		SOLE		474,623	0	0
TiVo, Inc.	COM	888706108	6,672	773,070	SH		SOLE		773,070	0	0
Time Warner Cable, Inc.	COM	88732J207	278	1,500	SH		SOLE	1	1,500	0	0
Time Warner, Inc.	COM	887317303	12,421	192,063	SH		SOLE		192,063	0	0
US Bancorp	COM	902973304	11,060	259,201	SH		DFND	1	259,201	0	0
Ulta Salon Cosmetics & Fragrance, Inc.	COM	90384S303	244	1,320	SH		SOLE	1	1,320	0	0
United Parcel Service, Inc., Class B	CL B	911312106	17,149	178,209	SH		DFND	1	178,209	0	0
Unitil Corp.	COM	913259107	12,355	344,351	SH		SOLE		344,351	0	0
VF Corp.	COM	918204108	11,943	191,857	SH		SOLE		191,857	0	0
Verint Systems, Inc.	COM	92343X100	4,250	104,776	SH		SOLE		104,776	0	0
Verizon Communications, Inc.	COM	92343V104	3,660	79,183	SH		DFND	1	79,183	0	0
Visa, Inc., Class A	COM CL A	92826C839	16,298	210,164	SH		DFND	1	210,164	0	0
Vodafone Group PLC, ADR	SPNSR ADR NO PAR	92857W308	1,020	31,608	SH		SOLE		31,608	0	0
WCI Communities, Inc.	COM PAR $0.01	92923C807	10,879	488,282	SH		SOLE		488,282	0	0
Walt Disney Co., The	COM DISNEY	254687106	16,043	152,678	SH		DFND	1	152,678	0	0
Wells Fargo & Co.	COM	949746101	1,337	24,600	SH		SOLE	1	24,600	0	0
Westell Technologies, Inc., Class A	CL A	957541105	1,973	1,565,681	SH		SOLE		1,565,681	0	0
Weyerhaeuser Co., REIT	COM	962166104	3,243	108,187	SH		DFND	1	108,187	0	0
White Mountains Insurance Group, Ltd.	COM	G9618E107	25,014	34,416	SH		SOLE		34,416	0	0
Xerox Corp.	COM	984121103	1,421	133,723	SH		SOLE	1	133,723	0	0
Yahoo!, Inc.	COM	984332106	1,612	48,474	SH		SOLE	1	48,474	0	0
Zoetis, Inc.	CL A	98978V103	17,765	370,722	SH		SOLE		370,722	0	0
eBay, Inc.	COM	278642103	1,780	64,766	SH		SOLE		64,766	0	0
SPDR Barclays Capital High Yield Bond ETF	BRC HGH YLD BD	78464A417	2,673	78,813	SH		SOLE		78,813	0	0
iShares Core S&P 500 ETF	CORE S&P500 ETF	464287200	1,153	5,626	SH		SOLE	1	5,626	0	0
iShares MSCI EAFE ETF	MSCI EAFE ETF	464287465	2,945	50,120	SH		DFND	1	50,120	0	0
iShares iBoxx $ High Yield Corp Bond ETF	IBOXX HI YD ETF	464288513	4,112	51,034	SH		SOLE		51,034	0	0
TiVo, Inc.	NOTE 2.000%10/0	888706AF5	870	1,000,000	PRN		SOLE		1,000,000	0	0