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

OMB APPROVAL

OMB Number:		3235-0006
Expires:	Oct 31, 2018
Estimated average burden
hours per response:		23.8

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	17,837	125,816	SH		SOLE		125,816	0	0
ACE, Ltd.	SHS	H0023R105	2,585	25,000	SH		SOLE		25,000	0	0
ACI Worldwide, Inc.	COM	004498101	14,212	672,899	SH		SOLE		672,899	0	0
ARRIS Group, Inc.	COM	04270v106	11,753	452,564	SH		SOLE		452,564	0	0
AT&T, Inc.	COM	00206R102	15,146	464,880	SH		DFND	1	464,880	0	0
AbbVie, Inc.	COM	00287Y109	13,622	250,365	SH		SOLE		250,365	0	0
Abbott Laboratories	COM	002824100	4,733	117,682	SH		DFND	1	117,682	0	0
Accenture PLC, Class A	SHS CLASS A	G1151C101	294	2,992	SH		SOLE	1	2,992	0	0
Aetna, Inc.	COM	00817Y108	1,540	14,071	SH		SOLE	1	14,071	0	0
Agilent Technologies, Inc.	COM	00846U101	1,977	57,592	SH		SOLE		57,592	0	0
Amazon.com, Inc.	COM	023135106	31,699	61,925	SH		SOLE		61,925	0	0
Amdocs, Ltd.	SHS	G02602103	19,463	342,185	SH		SOLE		342,185	0	0
American Express Co.	COM	025816109	2,571	34,681	SH		SOLE		34,681	0	0
American Tower Corp., REIT	COM	03027X100	35,788	406,774	SH		DFND	1	406,774	0	0
American Water Works Co., Inc.	COM	030420103	2,714	49,270	SH		DFND	1	49,270	0	0
Apache Corp.	COM	037411105	6,692	170,900	SH		SOLE		170,900	0	0
Apple, Inc.	COM	037833100	48,761	442,078	SH		SOLE		442,078	0	0
Axiall Corp.	COM	05463D100	6,841	436,006	SH		SOLE		436,006	0	0
Bank of New York Mellon Corp.,	COM	064058100	24,358	622,182	SH		SOLE		622,182	0	0
Becton Dickinson & Co.	COM	075887109	36,756	277,067	SH		DFND	1	277,067	0	0
Beneficial Bancorp, Inc.	COM	08171T102	3,563	268,684	SH		SOLE		268,684	0	0
Berkshire Hathaway, Inc., Clas	CL B NEW	084670702	949	7,276	SH		SOLE	1	7,276	0	0
Berkshire Hills Bancorp Inc	COM	084680107	7,236	262,759	SH		SOLE		262,759	0	0
Biogen, Inc.	COM	09062X103	1,695	5,809	SH		DFND	1	5,809	0	0
BlackRock, Inc.	COM	09247X101	17,153	57,664	SH		SOLE		57,664	0	0
BorgWarner, Inc.	COM	099724106	1,902	45,737	SH		SOLE		45,737	0	0
Bristol-Myers Squibb Co.	COM	110122108	2,908	49,118	SH		DFND	1	49,118	0	0
Brookdale Senior Living, Inc.	COM	112463104	16,645	724,953	SH		SOLE		724,953	0	0
CBRE Group, Inc., Class A	CL A	12504L109	1,485	46,401	SH		SOLE		46,401	0	0
Cabela's, Inc.	COM	126804301	20,502	449,613	SH		SOLE		449,613	0	0
Campbell Soup Co.	COM	134429109	487	9,600	SH		SOLE	1	9,600	0	0
Capitol Federal Financial, Inc	COM	14057j101	24,379	2,011,471	SH		SOLE		2,011,471	0	0
Carter's, Inc.	COM	146229109	14,141	156,011	SH		SOLE		156,011	0	0
Celgene Corp.	COM	151020104	23,018	212,795	SH		SOLE		212,795	0	0
Cisco Systems, Inc.	COM	17275R102	914	34,803	SH		SOLE	1	34,803	0	0
Citigroup, Inc.	COM	172967424	23,347	470,619	SH		SOLE		470,619	0	0
Coca-Cola Co., The	COM	191216100	770	19,181	SH		SOLE	1	19,181	0	0
Coca-Cola Enterprises, Inc.	COM	19122T109	1,493	30,878	SH		SOLE	1	30,878	0	0
Cognizant Technology Solutions	CL A	192446102	23,644	377,637	SH		SOLE		377,637	0	0
Colgate-Palmolive Co.	COM	194162103	277	4,372	SH		SOLE	1	4,372	0	0
ConocoPhillips	COM	20825C104	7,012	146,196	SH		DFND	1	146,196	0	0
Core Laboratories NV	COM	N22717107	4,518	45,274	SH		DFND	1	45,274	0	0
Cummins, Inc.	COM	231021106	1,585	14,602	SH		DFND	1	14,602	0	0
Dominion Resources, Inc.	COM	25746U109	206	2,920	SH		SOLE	1	2,920	0	0
Duke Energy Corp.	COM	26441C204	259	3,603	SH		SOLE	1	3,603	0	0
EI du Pont de Nemours & Co.	COM	263534109	223	4,624	SH		SOLE	1	4,624	0	0
EMC Corp.	COM	268648102	2,379	98,471	SH		SOLE		98,471	0	0
EMCOR Group, Inc.	COM	29084Q100	5,184	117,154	SH		SOLE		117,154	0	0
EQT Corp.	COM	26884L109	6,026	93,040	SH		SOLE		93,040	0	0
Eaton Corp PLC	SHS	G29183103	1,733	33,783	SH		SOLE		33,783	0	0
Ecolab, Inc.	COM	278865100	8,291	75,564	SH		DFND	1	75,564	0	0
Eli Lilly & Co.	COM	532457108	560	6,692	SH		SOLE	1	6,692	0	0
Essendant Inc	COM	296689102	1,630	50,273	SH		SOLE		50,273	0	0
Estee Lauder Cos, Inc., Class	CL A	518439104	24,332	301,586	SH		DFND	1	301,586	0	0
Eversource Energy	COM	30040W108	5,852	115,605	SH		SOLE		115,605	0	0
Exactech, Inc.	COM	30064E109	3,631	208,295	SH		SOLE		208,295	0	0
ExlService Holdings, Inc.	COM	302081104	11,585	313,706	SH		SOLE		313,706	0	0
Expeditors Int. of Washington,	COM	302130109	7,656	162,730	SH		SOLE		162,730	0	0
Express Scripts Holding Co.	COM	30219G108	22,134	273,391	SH		SOLE		273,391	0	0
FBR & Co.	COM	30247C400	4,813	235,676	SH		SOLE		235,676	0	0
Facebook, Inc., Class A	CL A	30303M102	25,991	289,113	SH		DFND	1	289,113	0	0
Fox Chase Bancorp, Inc.	COM	35137T108	8,368	482,038	SH		SOLE		482,038	0	0
Frontier Communications Corp.	COM	35906A108	170	35,752	SH		SOLE	1	35,752	0	0
General Electric Co.	COM	369604103	1,214	48,146	SH		SOLE	1	48,146	0	0
General Mills, Inc.	COM	370334104	2,969	52,888	SH		DFND	1	52,888	0	0
Gilead Sciences, Inc.	COM	375558103	13,853	141,086	SH		DFND	1	141,086	0	0
Goldman Sachs Group, Inc., The	COM	38141G104	18,701	107,627	SH		SOLE		107,627	0	0
Google, Inc., Class A	CL A	38259P508	31,438	49,247	SH		DFND	1	45,973	0	0
Google, Inc., Class C	CL C	38259P706	27,971	45,973	SH		DFND	1	49,247	0	0
Hercules Technology Growth Cap	COM	427096508	667	66,000	SH		SOLE		66,000	0	0
Hess Corp.	COM	42809H107	14,654	292,726	SH		SOLE		292,726	0	0
Hewlett-Packard Co.	COM	428236103	263	10,254	SH		SOLE	1	10,254	0	0
Hologic, Inc.	COM	436440101	7,884	201,494	SH		DFND	1	201,494	0	0
Home Depot, Inc., The	COM	437076102	19,106	165,433	SH		DFND	1	165,433	0	0
HomeTrust Bancshares, Inc.	COM	437872104	8,970	483,554	SH		SOLE		483,554	0	0
Honeywell International, Inc.	COM	438516106	456	4,811	SH		SOLE	1	4,811	0	0
IBM	COM	459200101	738	5,093	SH		SOLE	1	5,093	0	0
ICF International, Inc.	COM	44925C103	5,914	194,614	SH		SOLE		194,614	0	0
Independent Bank Corp.	COM	453836108	10,918	236,828	SH		SOLE		236,828	0	0
Ingram Micro, Inc., Class A	CL A	457153104	20,589	755,841	SH		SOLE		755,841	0	0
Intuit, Inc.	COM	461202103	1,961	22,100	SH		DFND	1	22,100	0	0
Investors Bancorp, Inc.	COM	46146L101	26,589	2,154,712	SH		SOLE		2,154,712	0	0
Jamba, Inc.	COM	47023A309	6,411	449,874	SH		SOLE		449,874	0	0
Kaiser Aluminum Corp.	COM PAR $0.01	483007704	5,306	66,119	SH		SOLE		66,119	0	0
Kearny Financial Corp/MD	COM	48716p108	6,881	599,900	SH		SOLE		599,900	0	0
Kellogg Co.	COM	487836108	1,376	20,681	SH		SOLE	1	20,681	0	0
KeyCorp.	COM	493267108	1,306	100,384	SH		SOLE	1	100,384	0	0
Knoll, Inc.	COM	498904200	10,566	480,693	SH		SOLE		480,693	0	0
Kraft Heinz Co., The	COM	500754106	333	4,711	SH		SOLE	1	4,711	0	0
LaSalle Hotel Properties, REIT	COM SH BEN INT	517942108	12,263	431,952	SH		SOLE		431,952	0	0
Laboratory Corp of America Hol	COM	50540R409	4,745	43,749	SH		SOLE		43,749	0	0
Laclede Group, Inc., The	COM	505597104	19,407	355,892	SH		SOLE		355,892	0	0
Landstar System, Inc.	COM	515098101	1,570	24,737	SH		SOLE		24,737	0	0
Legg Mason, Inc.	COM	524901105	2,226	53,500	SH		SOLE		53,500	0	0
Libbey, Inc.	COM	529898108	3,228	98,988	SH		SOLE		98,988	0	0
Lockheed Martin Corp.	COM	539830109	1,477	7,124	SH		SOLE	1	7,124	0	0
Lowe's Cos., Inc.	COM	548661107	4,037	58,579	SH		SOLE		58,579	0	0
Lydall, Inc.	COM	550819106	3,405	119,521	SH		SOLE		119,521	0	0
LyondellBasell Industries NV,	SHS - A -	N53745100	12,898	154,725	SH		SOLE		154,725	0	0
MRC Global, Inc.	COM	55345K103	8,279	742,551	SH		SOLE		742,551	0	0
Macy's, Inc.	COM	55616P104	2,539	49,472	SH		SOLE		49,472	0	0
Marathon Petroleum Corp.	COM	56585A102	7,886	170,211	SH		SOLE		170,211	0	0
Marriott International, Inc.,	CL A	571903202	1,814	26,604	SH		DFND	1	26,604	0	0
Masco Corp.	COM	574599106	5,480	217,644	SH		DFND	1	217,644	0	0
MasterCard, Inc., Class A	CL A	57636Q104	3,268	36,263	SH		DFND	1	36,263	0	0
McDonald's Corp.	COM	580135101	16,771	170,211	SH		SOLE		170,211	0	0
Men's Wearhouse, Inc., The	COM	587118100	8,893	209,152	SH		SOLE		209,152	0	0
Merck & Co., Inc.	COM	58933Y105	29,423	595,732	SH		SOLE		595,732	0	0
Meridian Bancorp, Inc.	COM	58958U103	12,455	911,107	SH		SOLE		911,107	0	0
MetLife, Inc.	COM	59156R108	219	4,635	SH		SOLE	1	4,635	0	0
Metaldyne Performance Group, I	COM	59116R107	5,620	267,492	SH		SOLE		267,492	0	0
Michael Kors Holdings, Ltd.	SHS	G60754101	488	11,550	SH		SOLE	1	11,550	0	0
Microsoft Corp.	COM	594918104	35,789	808,606	SH		DFND	1	808,606	0	0
Mylan, Inc.	SHS EURO	N59465109	1,232	30,597	SH		SOLE		30,597	0	0
Mondelez International, Inc.,	CL A	609207105	339	8,086	SH		SOLE	1	8,086	0	0
Morgan Stanley	COM	617446448	26,825	851,588	SH		SOLE		851,588	0	0
NIKE, Inc., Class B	CL B	654106103	26,268	213,610	SH		DFND	1	213,610	0	0
NN, Inc.	COM	629337106	5,882	317,963	SH		SOLE		317,963	0	0
NXP Semiconductors NV	COM	N6596X109	12,400	142,412	SH		SOLE		142,412	0	0
Natus Medical, Inc.	COM	639050103	10,683	270,800	SH		SOLE		270,800	0	0
Netflix, Inc.	COM	64110L106	207	2,002	SH		SOLE	1	2,002	0	0
Newell Rubbermaid, Inc.	COM	651229106	11,429	287,821	SH		SOLE		287,821	0	0
Nucor Corp.	COM	670346105	2,305	61,394	SH		SOLE		61,394	0	0
ONE Gas, Inc.	COM	68235P108	18,923	417,449	SH		SOLE		417,449	0	0
Occidental Petroleum Corp.	COM	674599105	11,593	175,254	SH		SOLE		175,254	0	0
Oracle Corp.	COM	68389x105	15,658	433,492	SH		DFND	1	433,492	0	0
Oshkosh Corp.	COM	688239201	10,979	302,200	SH		SOLE		302,200	0	0
PNC Financial Services Group,	COM	693475105	4,862	54,508	SH		SOLE		54,508	0	0
PayPal Holdings Inc	COM	70450Y103	2,475	79,731	SH		SOLE		79,731	0	0
PepsiCo, Inc.	COM	713448108	26,362	279,556	SH		DFND	1	279,556	0	0
Phillips 66	COM	718546104	203	2,639	SH		SOLE	1	2,639	0	0
Physicians Realty Trust, REIT	COM	71943U104	6,536	433,117	SH		SOLE		433,117	0	0
Pioneer Natural Resources Co.	COM	723787107	11,451	94,138	SH		SOLE		94,138	0	0
Planet Fitness, Inc., Class A	CL A	72703H101	3,145	183,465	SH		SOLE		183,465	0	0
Praxair, Inc.	COM	74005P104	2,583	25,358	SH		DFND	1	25,358	0	0
Procter & Gamble Co., The	COM	742718109	20,865	290,032	SH		DFND	1	290,032	0	0
QUALCOMM, Inc.	COM	747525103	1,082	20,145	SH		SOLE		20,145	0	0
Quanta Services, Inc.	COM	74762E102	2,265	93,537	SH		SOLE		93,537	0	0
Red Hat, Inc.	COM	756577102	1,481	20,603	SH		SOLE		20,603	0	0
RenaissanceRe Holdings, Ltd.	COM	G7496G103	17,876	168,135	SH		SOLE		168,135	0	0
Roper Technologies, Inc.	COM	776696106	2,053	13,102	SH		SOLE		13,102	0	0
SM Energy Co.	COM	78454L100	2,243	70,000	SH		SOLE		70,000	0	0
Sally Beauty Holdings Inc	COM	79546E104	13,826	582,156	SH		SOLE		582,156	0	0
Scripps Networks Interactive,	CL A COM	811065101	2,542	51,681	SH		DFND	1	51,681	0	0
Sirona Dental Systems, Inc.	COM	82966C103	9,688	103,791	SH		SOLE		103,791	0	0
SolarCity Corp.	COM	83416T100	1,118	26,178	SH		SOLE		26,178	0	0
St. Jude Medical, Inc.	COM	790849103	5,648	89,524	SH		SOLE		89,524	0	0
Stanley Black & Decker, Inc.	COM	854502101	3,117	32,140	SH		SOLE		32,140	0	0
Starbucks Corp.	COM	855244109	3,148	55,379	SH		SOLE		55,379	0	0
State Street Corp.	COM	857477103	2,221	33,043	SH		SOLE		33,043	0	0
Stericycle, Inc.	COM	858912108	24,415	175,255	SH		SOLE		175,255	0	0
SunPower Corp.	COM	867652406	1,037	51,754	SH		SOLE		51,754	0	0
Syntel, Inc.	COM	87162H103	18,190	401,446	SH		SOLE		401,446	0	0
T Rowe Price Group, Inc.	COM	74144T108	7,288	104,870	SH		SOLE		104,870	0	0
Tableau Software, Inc., Class	CL A	87336U105	742	9,296	SH		SOLE		9,296	0	0
Texas Instruments, Inc.	COM	882508104	2,708	54,685	SH		DFND	1	54,685	0	0
TheStreet, Inc.	COM	88368Q103	2,458	1,471,653	SH		SOLE		1,471,653	0	0
Thermo Fisher Scientific, Inc.	COM	883556102	3,922	32,074	SH		SOLE		32,074	0	0
Thermon Group Holdings, Inc.	COM	88362t103	9,343	454,623	SH		SOLE		454,623	0	0
TiVo, Inc.	COM	888706108	6,695	773,070	SH		SOLE		773,070	0	0
Time Warner, Inc.	COM	887317303	18,658	271,383	SH		SOLE		271,383	0	0
US Bancorp	COM	902973304	3,281	80,000	SH		SOLE		80,000	0	0
Ulta Salon Cosmetics & Fragran	COM	90384S303	575	3,520	SH		SOLE	1	3,520	0	0
Ultra Petroleum Corp.	COM	903914109	2,685	420,217	SH		SOLE		420,217	0	0
United Parcel Service, Inc., C	CL B	911312106	14,640	148,339	SH		DFND	1	148,339	0	0
United Technologies Corp.	COM	913017109	379	4,258	SH		SOLE	1	4,258	0	0
UnitedHealth Group, Inc.	COM	91324p102	28,474	245,447	SH		SOLE		245,447	0	0
Unitil Corp.	COM	913259107	9,371	254,096	SH		SOLE		254,096	0	0
VF Corp.	COM	918204108	18,814	275,820	SH		DFND	1	275,820	0	0
Verint Systems, Inc.	COM	92343X100	7,283	168,777	SH		SOLE		168,777	0	0
Verizon Communications, Inc.	COM	92343V104	3,034	69,723	SH		DFND	1	69,723	0	0
Visa, Inc., Class A	COM CL A	92826C839	14,055	201,768	SH		DFND	1	201,768	0	0
Vodafone Group PLC, ADR	SPNSR ADR NO PAR	92857W308	898	28,287	SH		SOLE		28,287	0	0
WCI Communities, Inc.	COM PAR $0.01	92923C807	11,050	488,282	SH		SOLE		488,282	0	0
Walt Disney Co., The	COM DISNEY	254687106	20,501	200,592	SH		DFND	1	200,592	0	0
Westell Technologies, Inc., Cl	CL A	957541105	1,413	1,239,481	SH		SOLE		1,239,481	0	0
Weyerhaeuser Co., REIT	COM	962166104	2,342	85,656	SH		DFND	1	85,656	0	0
White Mountains Insurance Group	COM	G9618E107	25,739	34,443	SH		SOLE		34,443	0	0
Xerox Corp	COM	984121103	1,301	133,723	SH		SOLE	1	133,723	0	0
Zoetis, Inc.	CL A	98978V103	14,433	350,483	SH		SOLE		350,483	0	0
eBay, Inc.	COM	278642103	1,444	59,098	SH		SOLE		59,098	0	0
lululemon athletica, Inc.	COM	550021109	345	6,808	SH		SOLE	1	6,808	0	0
salesforce.com, inc.	COM	79466L302	2,496	35,952	SH		SOLE		35,952	0	0
Vanguard FTSE Developed Market	FTSE DEV MKT ETF	921943858	727	20,400	SH		SOLE		20,400	0	0
iShares Core S&P 500 ETF	CORE S&P500 ETF	464287200	2,622	13,607	SH		SOLE	1	13,607	0	0
iShares MSCI EAFE ETF	MSCI EAFE ETF	464287465	1,733	30,241	SH		SOLE	1	30,241	0	0
iShares iBoxx $ High Yield Corp.	IBOXX HI YD ETF	464288513	1,916	23,000	SH		SOLE		23,000	0	0
TiVo, Inc.	NOTE 2.000%10/0	888706af5	874	1,000,000	SH		SOLE		1,000,000	0	0