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	14,762	84,295	SH		SOLE		84,295	0	0
ACI Worldwide, Inc.	COM	004498101	8,881	455,226	SH		SOLE		455,226	0	0
ARRIS International PLC	SHS	G0551A103	12,987	619,618	SH		SOLE		619,618	0	0
AT&T, Inc.	COM	00206R102	36,617	847,431	SH		DFND	1	847,431	0	0
AT&T, Inc.	CALL	00206R902	17,284	400,000	SH	Call	SOLE		400,000	0	0
Abbott Laboratories	COM	002824100	930	23,654	SH		DFND	1	23,654	0	0
Accenture PLC, Class A	SHS CLASS A	G1151C101	423	3,730	SH		SOLE	1	3,730	0	0
Aetna, Inc.	COM	00817Y108	1,718	14,071	SH		SOLE	1	14,071	0	0
Agilent Technologies, Inc.	COM	00846U101	301	6,796	SH		SOLE		6,796	0	0
Alleghany Corp.	COM	017175100	23,081	41,997	SH		SOLE		41,997	0	0
Alphabet, Inc., Class A	CAP STK CL A	02079K305	23,546	33,468	SH		DFND	1	33,468	0	0
Alphabet, Inc., Class C	CAP STK CL C	02079K107	22,979	33,202	SH		DFND	1	33,202	0	0
Amazon.com, Inc.	COM	023135106	13,270	18,543	SH		SOLE		18,543	0	0
Amdocs, Ltd.	SHS	G02602103	4,916	85,175	SH		SOLE		85,175	0	0
American Electric Power Co., Inc.	COM	025537101	207	2,947	SH		SOLE	1	2,947	0	0
American Tower Corp., REIT	COM	03027X100	38,157	335,858	SH		DFND	1	335,858	0	0
American Water Works Co., Inc.	COM	030420103	1,683	19,920	SH		DFND	1	19,920	0	0
Apple, Inc.	COM	037833100	26,467	276,850	SH		SOLE		276,850	0	0
Aramark	COM	03852U106	2,507	75,000	SH		SOLE		75,000	0	0
AvalonBay Communities, Inc., REIT	COM	053484101	7,216	40,000	SH		SOLE		40,000	0	0
Axiall Corp.	COM	05463D100	10,802	331,238	SH		SOLE		331,238	0	0
Bank of America Corp.	COM	060505104	814	61,340	SH		SOLE	1	61,340	0	0
Bank of New York Mellon Corp., The	COM	064058100	16,405	422,259	SH		SOLE		422,259	0	0
Becton Dickinson & Co.	COM	075887109	28,370	167,288	SH		DFND	1	167,288	0	0
Beneficial Bancorp, Inc.	COM	08171T102	10,176	800,000	SH		SOLE		800,000	0	0
Berkshire Hathaway, Inc., Class B	CL B NEW	084670702	1,018	7,032	SH		SOLE	1	7,032	0	0
Berkshire Hills Bancorp, Inc.	COM	084680107	7,073	262,759	SH		SOLE		262,759	0	0
Biogen, Inc.	COM	09062X103	4,708	19,469	SH		DFND	1	19,469	0	0
Bristol-Myers Squibb Co.	COM	110122108	1,133	15,408	SH		DFND	1	15,408	0	0
Brookdale Senior Living, Inc.	COM	112463104	15,214	985,369	SH		SOLE		985,369	0	0
CBRE Group, Inc., Class A	CL A	12504L109	250	9,438	SH		SOLE		9,438	0	0
CVS Health Corp.	COM	126650100	18,896	197,367	SH		DFND	1	197,367	0	0
Cabela's, Inc.	COM	126804301	22,037	440,220	SH		SOLE		440,220	0	0
Capitol Federal Financial, Inc.	COM	14057j101	26,682	1,912,712	SH		SOLE		1,912,712	0	0
Carter's, Inc.	COM	146229109	15,179	142,569	SH		SOLE		142,569	0	0
Celgene Corp.	COM	151020104	18,176	184,281	SH		SOLE		184,281	0	0
Charles Schwab Corp., The	COM	808513105	13,685	540,704	SH		SOLE		540,704	0	0
Charter Communications, Inc., Class A	CL A	16119P108	308	1,346	SH		SOLE	1	1,346	0	0
Charter Financial Corp.	COM	16122W108	3,354	252,590	SH		SOLE		252,590	0	0
Check Point Software Technologies, Ltd.	ORD	m22465104	2,948	37,000	SH		SOLE		37,000	0	0
Chubb, Ltd.	COM	H1467J104	32,187	246,245	SH		SOLE		246,245	0	0
Cisco Systems, Inc.	COM	17275R102	11,244	391,925	SH		DFND	1	391,925	0	0
Citigroup, Inc.	COM	172967424	14,444	340,751	SH		SOLE		340,751	0	0
Citizens Financial Group, Inc.	COM	174610105	3,996	200,000	SH		SOLE		200,000	0	0
Citrix Systems, Inc.	COM	177376100	1,602	20,000	SH		SOLE		20,000	0	0
Coca-Cola Co., The	COM	191216100	1,103	24,335	SH		SOLE	1	24,335	0	0
Coca-Cola European Partners PLC	SHS	G25839104	1,102	30,878	SH		SOLE	1	30,878	0	0
Cognizant Technology Solutions, Class A	CL A	192446102	19,104	333,748	SH		SOLE		333,748	0	0
Colgate-Palmolive Co.	COM	194162103	368	5,032	SH		SOLE	1	5,032	0	0
ConAgra Foods, Inc.	COM	205887102	3,347	70,000	SH		SOLE		70,000	0	0
Concho Resources, Inc.	COM	20605P101	1,193	10,000	SH		SOLE		10,000	0	0
ConocoPhillips	COM	20825C104	328	7,529	SH		DFND	1	7,529	0	0
Core Laboratories NV	COM	N22717107	1,626	13,121	SH		DFND	1	13,121	0	0
Crown Castle International Corp., REIT	COM	22822V101	22,923	226,000	SH		SOLE		226,000	0	0
Cummins, Inc.	COM	231021106	661	5,878	SH		DFND	1	5,878	0	0
Dominion Resources, Inc.	COM	25746U109	276	3,548	SH		SOLE	1	3,548	0	0
Duke Energy Corp.	COM	26441C204	352	4,103	SH		SOLE	1	4,103	0	0
EMC Corp.	COM	268648102	399	14,667	SH		SOLE		14,667	0	0
EMCOR Group, Inc.	COM	29084Q100	14,778	300,000	SH		SOLE		300,000	0	0
EOG Resources Inc	COM	26875P101	8,342	100,000	SH		SOLE		100,000	0	0
EQT Corp.	COM	26884L109	3,329	42,991	SH		SOLE		42,991	0	0
Eaton Corp PLC	SHS	G29183103	300	5,024	SH		SOLE		5,024	0	0
Ecolab, Inc.	COM	278865100	12,568	105,966	SH		DFND	1	105,966	0	0
Eli Lilly & Co.	COM	532457108	464	5,895	SH		SOLE	1	5,895	0	0
Equity Residential, REIT	SH BEN INT	29476L107	1,577	22,892	SH		SOLE		22,892	0	0
Estee Lauder Cos, Inc., The, Class A	CL A	518439104	24,393	268,000	SH		DFND	1	268,000	0	0
Eversource Energy	COM	30040W108	17,757	296,448	SH		SOLE		296,448	0	0
ExlService Holdings, Inc.	COM	302081104	11,268	215,000	SH		SOLE		215,000	0	0
Expeditors Int. of Washington, Inc.	COM	302130109	4,421	90,152	SH		SOLE		90,152	0	0
Express Scripts Holding Co.	COM	30219G108	373	4,916	SH		SOLE		4,916	0	0
FBR & Co.	COM	30247C400	3,894	260,832	SH		SOLE		260,832	0	0
Facebook, Inc., Class A	CL A	30303M102	11,205	98,045	SH		DFND	1	98,045	0	0
First Republic Bank	COM	33616C100	8,685	124,086	SH		DFND	1	124,086	0	0
Fiserv, Inc.	COM	337738108	2,175	20,000	SH		SOLE		20,000	0	0
Fox Chase Bancorp, Inc.	COM	35137T108	11,525	566,599	SH		SOLE		566,599	0	0
Frontier Communications Corp.	COM	35906A108	177	35,752	SH		SOLE	1	35,752	0	0
General Mills, Inc.	COM	370334104	21,296	298,604	SH		DFND	1	298,604	0	0
Genpact, Ltd.	SHS	G3922B107	14,559	542,420	SH		SOLE		542,420	0	0
Gentex Corp.	COM	371901109	13,596	880,000	SH		SOLE		880,000	0	0
Genuine Parts Co	COM	372460105	2,025	20,000	SH		SOLE		20,000	0	0
Gilead Sciences, Inc.	COM	375558103	7,759	93,009	SH		DFND	1	93,009	0	0
Goldman Sachs Group, Inc., The	COM	38141G104	11,540	77,667	SH		SOLE		77,667	0	0
HP, Inc.	COM	40434L105	133	10,629	SH		SOLE	1	10,629	0	0
Hartford Financial Services Group	COM	416515104	8,099	182,481	SH		DFND	1	182,481	0	0
Hercules Capital, Inc.	COM	427096508	1,068	86,000	SH		SOLE		86,000	0	0
Hess Corp.	COM	42809H107	10,818	180,000	SH		SOLE		180,000	0	0
Hologic, Inc.	COM	436440101	4,830	139,600	SH		DFND	1	139,600	0	0
Home Depot, Inc., The	COM	437076102	1,220	9,557	SH		DFND	1	9,557	0	0
HomeTrust Bancshares, Inc.	COM	437872104	11,848	640,447	SH		SOLE		640,447	0	0
IBM	COM	459200101	841	5,543	SH		DFND	1	5,543	0	0
ICF International, Inc.	COM	44925C103	10,634	260,000	SH		SOLE		260,000	0	0
ICON PLC	SHS	G4705A100	5,251	75,000	SH		SOLE		75,000	0	0
ION Geophysical Corp.	COM	462044207	312	50,000	SH		SOLE		50,000	0	0
Independent Bank Corp.	COM	453836108	11,545	252,628	SH		SOLE		252,628	0	0
Ingersoll-Rand PLC	SHS	G47791101	16,408	257,661	SH		DFND	1	257,661	0	0
Ingram Micro, Inc., Class A	CL A	457153104	17,187	494,169	SH		SOLE		494,169	0	0
Insight Enterprises, Inc.	COM	45765U103	309	11,877	SH		SOLE		11,877	0	0
Integra LifeSciences Holdings Corp.	COM	457985208	8,398	105,261	SH		SOLE		105,261	0	0
Intuit, Inc.	COM	461202103	522	4,675	SH		DFND	1	4,675	0	0
Investors Bancorp, Inc.	COM	46146L101	23,367	2,108,977	SH		SOLE		2,108,977	0	0
Jamba, Inc.	COM	47023A309	5,961	579,307	SH		SOLE		579,307	0	0
Johnson & Johnson	COM	478160104	37,200	306,679	SH		DFND	1	306,679	0	0
Jones Lang LaSalle, Inc.	COM	48020Q107	1,446	14,835	SH		DFND	1	14,835	0	0
KLX, Inc.	COM	482539103	6,975	225,000	SH		SOLE		225,000	0	0
Kaiser Aluminum Corp.	COM PAR $0.01	483007704	8,137	90,000	SH		SOLE		90,000	0	0
Kearny Financial Corp/MD	COM	48716p108	12,246	973,434	SH		SOLE		973,434	0	0
Kellogg Co.	COM	487836108	1,689	20,681	SH		SOLE	1	20,681	0	0
KeyCorp	COM	493267108	1,508	136,484	SH		SOLE	1	136,484	0	0
Kimberly-Clark Corp.	COM	494368103	300	2,184	SH		SOLE	1	2,184	0	0
Knoll, Inc.	COM	498904200	6,613	272,360	SH		SOLE		272,360	0	0
Korn/Ferry International	COM	500643200	7,452	360,000	SH		SOLE		360,000	0	0
Kroger Co., The	COM	501044101	201	5,456	SH		SOLE	1	5,456	0	0
Laboratory Corp of America Holdings	COM	50540R409	574	4,403	SH		SOLE		4,403	0	0
Landstar System, Inc.	COM	515098101	278	4,043	SH		SOLE		4,043	0	0
Legg Mason, Inc.	COM	524901105	13,796	467,833	SH		SOLE		467,833	0	0
Ligand Pharmaceuticals, Inc.	COM	53220K504	5,964	50,000	SH		SOLE		50,000	0	0
Lincoln Electric Holdings, Inc.	COM	533900106	10,634	180,000	SH		SOLE		180,000	0	0
Lowe's Cos., Inc.	COM	548661107	235	2,964	SH		SOLE		2,964	0	0
MRC Global, Inc.	COM	55345K103	13,500	950,000	SH		SOLE		950,000	0	0
Macy's, Inc.	COM	55616P104	1,398	41,585	SH		DFND	1	41,585	0	0
Marriott International, Inc., Class A	CL A	571903202	441	6,637	SH		DFND	1	6,637	0	0
Masco Corp.	COM	574599106	3,277	105,930	SH		SOLE		105,930	0	0
MasterCard, Inc., Class A	CL A	57636Q104	898	10,196	SH		DFND	1	10,196	0	0
McKesson Corp.	COM	58155q103	254	1,362	SH		SOLE	1	1,362	0	0
Medtronic PLC	SHS	G5960L103	723	8,332	SH		SOLE	1	8,332	0	0
Merck & Co., Inc.	COM	58933Y105	20,501	355,863	SH		SOLE		355,863	0	0
Meridian Bancorp, Inc.	COM	58958U103	14,655	991,528	SH		SOLE		991,528	0	0
MetLife, Inc.	COM	59156R108	225	5,647	SH		SOLE	1	5,647	0	0
Metaldyne Performance Group, Inc.	COM	59116R107	7,374	536,295	SH		SOLE		536,295	0	0
Michael Kors Holdings, Ltd.	SHS	G60754101	575	11,621	SH		DFND	1	11,621	0	0
Microsoft Corp.	COM	594918104	35,622	696,156	SH		DFND	1	696,156	0	0
Mondelez International, Inc., Class A	CL A	609207105	426	9,359	SH		SOLE	1	9,359	0	0
Morgan Stanley	COM	617446448	252	9,703	SH		SOLE		9,703	0	0
NIKE, Inc., Class B	CL B	654106103	950	17,209	SH		DFND	1	17,209	0	0
NN, Inc.	COM	629337106	5,036	360,000	SH		SOLE		360,000	0	0
Natus Medical, Inc.	COM	639050103	16,254	430,000	SH		SOLE		430,000	0	0
Netflix, Inc.	COM	64110L106	220	2,401	SH		SOLE	1	2,401	0	0
Newell Brands, Inc.	COM	651229106	4,190	86,275	SH		SOLE		86,275	0	0
Newmont Mining Corp.	COM	651639106	2,372	60,622	SH		DFND	1	60,622	0	0
Nucor Corp.	COM	670346105	341	6,905	SH		SOLE		6,905	0	0
ONE Gas, Inc.	COM	68235P108	11,119	166,975	SH		SOLE		166,975	0	0
Occidental Petroleum Corp.	COM	674599105	26,077	345,123	SH		SOLE		345,123	0	0
Oracle Corp.	COM	68389x105	323	7,893	SH		SOLE		7,893	0	0
Oshkosh Corp.	COM	688239201	15,833	331,857	SH		SOLE		331,857	0	0
PNC Financial Services Group, Inc.	COM	693475105	790	9,706	SH		DFND	1	9,706	0	0
PepsiCo, Inc.	COM	713448108	24,558	231,812	SH		DFND	1	231,812	0	0
Performance Food Group Co.	COM	71377A103	12,659	470,426	SH		SOLE		470,426	0	0
Phillips 66	COM	718546104	252	3,177	SH		SOLE	1	3,177	0	0
Physicians Realty Trust, REIT	COM	71943U104	10,255	488,117	SH		SOLE		488,117	0	0
Pioneer Natural Resources Co.	COM	723787107	25,576	169,145	SH		SOLE		169,145	0	0
Planet Fitness, Inc., Class A	CL A	72703H101	9,790	518,530	SH		SOLE		518,530	0	0
Praxair, Inc.	COM	74005P104	304	2,705	SH		SOLE		2,705	0	0
Procter & Gamble Co., The	COM	742718109	22,040	260,301	SH		DFND	1	260,301	0	0
Progress Software Corp.	COM	743312100	9,799	356,838	SH		SOLE		356,838	0	0
Prologis, Inc., REIT	COM	74340W103	3,335	68,000	SH		SOLE		68,000	0	0
QUALCOMM, Inc.	COM	747525103	21,132	394,468	SH		SOLE		394,468	0	0
Realogy Holdings Corp.	COM	75605Y106	501	17,276	SH		SOLE	1	17,276	0	0
Red Hat, Inc.	COM	756577102	242	3,334	SH		SOLE		3,334	0	0
RenaissanceRe Holdings, Ltd.	COM	G7496G103	27,322	232,644	SH		SOLE		232,644	0	0
Roper Technologies, Inc.	COM	776696106	383	2,247	SH		SOLE		2,247	0	0
Sally Beauty Holdings, Inc.	COM	79546E104	18,492	628,780	SH		SOLE		628,780	0	0
Scripps Networks Interactive, Inc. Class A	CL A COM	811065101	252	4,052	SH		DFND	1	4,052	0	0
Sovran Self Storage, Inc., REIT	COM	84610H108	9,443	90,000	SH		SOLE		90,000	0	0
Spire, Inc.	COM	84857L101	11,973	169,008	SH		SOLE		169,008	0	0
Stanley Black & Decker, Inc.	COM	854502101	19,795	177,978	SH		SOLE		177,978	0	0
Starbucks Corp.	COM	855244109	415	7,272	SH		SOLE		7,272	0	0
State Street Corp.	COM	857477103	240	4,452	SH		SOLE		4,452	0	0
Synchrony Financial	COM	87165B103	8,595	340,000	SH		SOLE		340,000	0	0
Syntel, Inc.	COM	87162H103	19,628	433,668	SH		SOLE		433,668	0	0
TEGNA, Inc.	COM	87901j105	301	13,000	SH		SOLE	1	13,000	0	0
TJX Cos., Inc., The	COM	872540109	308	3,987	SH		SOLE	1	3,987	0	0
Tailored Brands, Inc.	COM	87403a107	5,507	435,000	SH		SOLE		435,000	0	0
Texas Instruments, Inc.	COM	882508104	792	12,640	SH		DFND	1	12,640	0	0
TheStreet, Inc.	COM	88368Q103	1,663	1,471,653	SH		SOLE		1,471,653	0	0
Thermo Fisher Scientific, Inc.	COM	883556102	20,567	139,189	SH		SOLE		139,189	0	0
Thermon Group Holdings, Inc.	COM	88362t103	11,048	575,106	SH		SOLE		575,106	0	0
Time Warner, Inc.	COM	887317303	17,077	232,207	SH		SOLE		232,207	0	0
Travelers Cos., Inc., The	COM	89417E109	214	1,796	SH		SOLE	1	1,796	0	0
US Bancorp	COM	902973304	10,515	260,717	SH		DFND	1	260,717	0	0
US Foods Holding Corp	COM	912008109	4,334	178,793	SH		SOLE		178,793	0	0
Ulta Salon Cosmetics & Fragrance, Inc.	COM	90384S303	517	2,120	SH		SOLE	1	2,120	0	0
United Parcel Service, Inc., Class B	CL B	911312106	15,408	143,037	SH		DFND	1	143,037	0	0
Unitil Corp.	COM	913259107	15,575	365,000	SH		SOLE		365,000	0	0
VF Corp.	COM	918204108	373	6,061	SH		SOLE		6,061	0	0
Verint Systems, Inc.	COM	92343X100	7,786	235,000	SH		SOLE		235,000	0	0
Verizon Communications, Inc.	COM	92343V104	1,695	30,355	SH		DFND	1	30,355	0	0
Visa, Inc., Class A	COM CL A	92826C839	15,347	206,915	SH		DFND	1	206,915	0	0
WCI Communities, Inc.	COM PAR $0.01	92923C807	13,520	800,000	SH		SOLE		800,000	0	0
Walt Disney Co., The	COM DISNEY	254687106	13,723	140,291	SH		DFND	1	140,291	0	0
Waste Management, Inc.	COM	94106L109	1,967	29,681	SH		SOLE		29,681	0	0
Wells Fargo & Co.	COM	949746101	1,643	34,704	SH		SOLE	1	34,704	0	0
Westell Technologies, Inc., Class A	CL A	957541105	1,096	1,565,681	SH		SOLE		1,565,681	0	0
Weyerhaeuser Co., REIT	COM	962166104	3,742	125,687	SH		DFND	1	125,687	0	0
White Mountains Insurance Group, Ltd.	COM	G9618E107	20,456	24,295	SH		SOLE		24,295	0	0
Willis Towers Watson PLC	SHS	G96629103	1,968	15,835	SH		DFND	1	15,835	0	0
Xerox Corp.	COM	984121103	1,309	137,930	SH		SOLE	1	137,930	0	0
Yahoo!, Inc.	COM	984332106	1,888	50,274	SH		SOLE	1	50,274	0	0
Zoetis, Inc.	CL A	98978V103	23,289	490,704	SH		SOLE		490,704	0	0
salesforce.com, Inc.	COM	79466L302	415	5,222	SH		SOLE		5,222	0	0
iShares Core S&P 500 ETF	CORE S&P500 ETF	464287200	1,007	4,781	SH		SOLE	1	4,781	0	0
iShares MSCI EAFE ETF	MSCI EAFE ETF	464287465	13,183	236,210	SH		DFND	1	236,210	0	0
Royal Bank of Scotland Group PLC	DEBT 7.500%12/3	780099CJ4	2,523	2,750,000	PRN		SOLE		2,750,000	0	0