Mesirow Institutional Investment Management, Inc.

13F filer, CIK 1947591, CHICAGO, IL

Mesirow Institutional Investment Management, Inc. reported $921,037,685 across 144 holdings for the quarter ended 2023-03-31, in a 13F-HR filed 2023-05-01. Its ten largest share positions make up 13.92% of the portfolio.

Filed 2023-05-01 (acceptance time not in the bulk data set), ingested 2026-10-07 18:32:36 UTC13F-HR 0001947591-23-000004

Period: 2023-03-31
Reported value: $921M
Holdings: 144
Top 10 weight: 13.92%
New: 45
Sold out: 18

Largest buys vs the previous quarter

Security	Shares change	Approx. value
CALYnew	+629,660	$13.6M
STAGnew	+376,805	$12.7M
HALOnew	+333,175	$12.7M
SAFEnew	+412,840	$12.1M
CACIadded	+40,725	$12.1M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Largest sells vs the previous quarter

Security	Shares change	Approx. value
TRAVELCENTERS OF AMERICA INCreduced	-188,224	-$16.3M
JBLreduced	-155,500	-$13.7M
SAFEHOLD INCexited	-399,535	-$11.4M
PACWEST BANCORP DELexited	-441,435	-$10.1M
DYexited	-107,290	-$10M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Holdings, Q1 2023

Share positions as resolved from 13F-HR 0001947591-23-000004, largest first. % of portfolio is the value over $921,037,685, the sum of the share positions whose value is usable for ratios (method).

Security	Shares	Value	% of portfolio	Change	Timeline
CALYCALLAWAY GOLF CO	629,660	$13.6M	1.48%	new	Timeline
THCTENET HEALTHCARE CORP	217,715	$12.9M	1.4%	+39,875	Timeline
OLLIOLLIES BARGAIN OUTLET HLDGS	222,930	$12.9M	1.4%	+27,165	Timeline
RDNRADIAN GROUP INC	581,374	$12.8M	1.39%	+135,480	Timeline
PHYSICIANS REALTY TRUSTPHYSICIANS REALTY TRUST	857,333	$12.8M	1.39%	+206,270
STAGSTAG INDUSTRIAL INC	376,805	$12.7M	1.38%	new	Timeline
HALOHALOZYME THERAPEUTICS INC	333,175	$12.7M	1.38%	new	Timeline
ALEXALEXANDER & BALDWIN INC	668,010	$12.6M	1.37%	+18,805	Timeline
LNTHLANTHEUS HLDGS INC	151,634	$12.5M	1.36%	-40,490	Timeline
ICUIICU MED INC	75,735	$12.5M	1.36%	+18,180	Timeline
KTBKONTOOR BRANDS INC	256,720	$12.4M	1.35%	-39,965	Timeline
CACICACI INTL INC	41,785	$12.4M	1.34%	+40,725	Timeline
CIENCIENA CORP	233,000	$12.2M	1.33%	+6,685	Timeline
AMPHAMPHASTAR PHARMACEUTICALS IN	325,669	$12.2M	1.33%	-48,745	Timeline
KMPRKEMPER CORP	223,035	$12.2M	1.32%	+169,545	Timeline
SAFESAFEHOLD INC	412,840	$12.1M	1.32%	new	Timeline
WHWYNDHAM HOTELS & RESORTS INC	175,845	$11.9M	1.3%	+36,115	Timeline
ERIIENERGY RECOVERY INC	516,820	$11.9M	1.29%	+14,670	Timeline
AXSAXIS CAP HLDGS LTD	211,466	$11.5M	1.25%	+5,990	Timeline
MRVIMARAVAI LIFESCIENCES HLDGS I	815,730	$11.4M	1.24%	new	Timeline
FTITECHNIPFMC PLC	825,825	$11.3M	1.22%	-249,420	Timeline
HLHECLA MINING COMPANY	1,768,255	$11.2M	1.22%	+399,775	Timeline
CHAMPIONX CORPORATIONCHAMPIONX CORPORATION	408,655	$11.1M	1.2%	+12,305
BCOBRINKS CO	162,430	$10.9M	1.18%	new	Timeline
CASYCASEYS GEN STORES INC	49,390	$10.7M	1.16%	+13,810	Timeline
PERFICIENT INCPERFICIENT INC	145,175	$10.5M	1.14%	+4,740
ATIATI INC	264,356	$10.4M	1.13%	-42,615	Timeline
EPACENERPAC TOOL GROUP CORP	407,249	$10.4M	1.13%	+49,250	Timeline
BDCBELDEN INC	118,720	$10.3M	1.12%	-7,105	Timeline
ATRAPTARGROUP INC	86,785	$10.3M	1.11%	+2,430	Timeline
RMBSRAMBUS INC DEL	197,731	$10.1M	1.1%	-15,565	Timeline
ROCKGIBRALTAR INDS INC	207,390	$10.1M	1.09%	+5,865	Timeline
ATENA10 NETWORKS INC	645,837	$10M	1.09%	+188,810	Timeline
ITTITT INC	115,830	$10M	1.09%	-13,185	Timeline
FLRFLUOR CORP	316,470	$9.78M	1.06%	-39,725	Timeline
THRMGENTHERM INC	161,790	$9.78M	1.06%	+35,110	Timeline
SFMSPROUTS FMRS MKT INC	273,065	$9.57M	1.04%	+51,830	Timeline
SIGSIGNET JEWELERS LTD	122,670	$9.54M	1.04%	+260	Timeline
GPREGREEN PLAINS INC	306,535	$9.5M	1.03%	+24,180	Timeline
MKSIMKS INC.	104,099	$9.23M	1%	-13,329	Timeline
KEXKIRBY CORP	131,905	$9.19M	1%	+3,695	Timeline
NXSTNEXSTAR MEDIA GROUP INC	52,505	$9.07M	0.98%	+1,485	Timeline
DRHDIAMONDROCK HOSPITALITY CO	1,110,788	$9.03M	0.98%	-247,545	Timeline
CPACOPA HOLDINGS SA	96,750	$8.93M	0.97%	-30,640	Timeline
COLLCOLLEGIUM PHARMACEUTICAL INC	362,987	$8.71M	0.95%	+72,453	Timeline
BARNES GROUP INCBARNES GROUP INC	215,675	$8.69M	0.94%	new
AMWDAMERICAN WOODMARK CORP	165,610	$8.62M	0.94%	+4,625	Timeline
BXMTBLACKSTONE MORTGAGE TRUST IN	479,040	$8.55M	0.93%	+111,405	Timeline
SOUTHSTATE BANK CORPSOUTHSTATE BANK CORP	119,540	$8.52M	0.92%	+5,525
NWNNORTHWEST NAT HLDG CO	179,049	$8.52M	0.92%	-21,180	Timeline
ASTEASTEC INDS INC	206,010	$8.5M	0.92%	+5,810	Timeline
AHRTAH RLTY TR INC	717,255	$8.47M	0.92%	+18,885	Timeline
NEW YORK COMMUNITY BANCORPNEW YORK COMMUNITY BANCORP	933,140	$8.44M	0.92%	+685,920
SANMSANMINA CORP	137,170	$8.37M	0.91%	new	Timeline
PDMPIEDMONT REALTY TRUST INC	1,140,915	$8.33M	0.9%	new	Timeline
SBRASABRA HEALTH CARE REIT INC	720,030	$8.28M	0.9%	+72,320	Timeline
BCBRUNSWICK CORP	100,640	$8.25M	0.9%	new	Timeline
WTFCWINTRUST FINL CORP	111,728	$8.15M	0.88%	+31,470	Timeline
SPXCSPX TECHNOLOGIES INC	114,991	$8.12M	0.88%	+4,160	Timeline
UAAUNDER ARMOUR INC	853,650	$8.1M	0.88%	-136,215	Timeline
AMEDISYS INCAMEDISYS INC	105,875	$7.79M	0.85%	+34,490
EFSCENTERPRISE FINL SVCS CORP	170,782	$7.62M	0.83%	-34,810	Timeline
AUBATLANTIC UN BANKSHARES CORP	213,735	$7.49M	0.81%	+6,565	Timeline
PORPORTLAND GEN ELEC CO	151,593	$7.41M	0.8%	+13,095	Timeline
MMSIMERIT MED SYS INC	97,682	$7.22M	0.78%	-22,840	Timeline
UCBUNITED CMNTY BKS BLAIRSVLE G	249,755	$7.02M	0.76%	+7,455	Timeline
KOSKOSMOS ENERGY LTD	941,510	$7M	0.76%	-110,515	Timeline
IVTINVENTRUST PPTYS CORP	297,343	$6.96M	0.76%	+54,960	Timeline
HEARTLAND FINL USA INCHEARTLAND FINL USA INC	179,880	$6.9M	0.75%	+5,250
SUPNSUPERNUS PHARMACEUTICALS	187,300	$6.79M	0.74%	-87,955	Timeline
OGSONE GAS INC	85,100	$6.74M	0.73%	+3,070	Timeline
SBSISOUTHSIDE BANCSHARES INC	201,769	$6.7M	0.73%	+7,430	Timeline
HAYWHAYWARD HLDGS INC	555,985	$6.52M	0.71%	new	Timeline
KRGKITE REALTY GROUP TRUST	308,465	$6.45M	0.7%	-236,790	Timeline
DINDINE BRANDS GLOBAL INC	94,790	$6.41M	0.7%	+3,455	Timeline
MCHBMECHANICS BANCORP	353,510	$6.36M	0.69%	+121,177	Timeline
FROFRONTLINE PLC	380,780	$6.31M	0.68%	new	Timeline
BKHBLACK HILLS CORP	94,945	$5.99M	0.65%	-40,225	Timeline
TCBKTRICO BANCSHARES	143,549	$5.97M	0.65%	+15,675	Timeline
GNTXGENTEX CORP	212,465	$5.96M	0.65%	+126,180	Timeline
HWCHANCOCK WHITNEY CORPORATION	159,665	$5.81M	0.63%	-21,850	Timeline
GVAGRANITE CONSTR INC	119,535	$4.91M	0.53%	new	Timeline
HOWARD HUGHES CORPORATIONHOWARD HUGHES CORPORATION	57,670	$4.61M	0.5%	new
HCIHCI GROUP INC	83,860	$4.49M	0.49%	new	Timeline
EHCENCOMPASS HEALTH CORP	82,525	$4.46M	0.48%	new	Timeline
TRNOTERRENO RLTY CORP	66,450	$4.29M	0.47%	new	Timeline
APGAPI GROUP CORP	189,240	$4.25M	0.46%	new	Timeline
WKCWORLD KINECT CORPORATION	152,115	$3.89M	0.42%	new	Timeline
VIPERVIPER	137,920	$3.86M	0.42%	new
JBIJANUS INTERNATIONAL GROUP IN	364,070	$3.59M	0.39%	new	Timeline
HIHILLENBRAND INC	75,355	$3.58M	0.39%	new	Timeline
ECPGENCORE CAP GROUP INC	70,170	$3.54M	0.38%	new	Timeline
AIR TRANSPORT SERVICES GRP IAIR TRANSPORT SERVICES GRP I	169,890	$3.54M	0.38%	new
CHRDCHORD ENERGY CORPORATION	26,035	$3.5M	0.38%	new	Timeline
NINISOURCE INC	124,015	$3.47M	0.38%	-17,900	Timeline
MPMP MATERIALS CORP	122,881	$3.46M	0.38%	new	Timeline
SP PLUS CORPSP PLUS CORP	100,820	$3.46M	0.38%	new
SPIRIT RLTY CAP INC NEW NPVSPIRIT RLTY CAP INC NEW NPV	85,515	$3.41M	0.37%	new
ADTNADTRAN HOLDINGS INC	211,395	$3.35M	0.36%	new	Timeline
CADECADENCE BANK	150,555	$3.13M	0.34%	-197,995	Timeline
JRVRJAMES RIVER GROUP HOLDINGS I	151,300	$3.12M	0.34%	new	Timeline
TCBITEXAS CAP BANCSHARES INC	62,220	$3.05M	0.33%	new	Timeline
TRAVELCENTERS OF AMERICA INCTRAVELCENTERS OF AMERICA INC	35,091	$3.04M	0.33%	-188,224
EVREVERCORE INC	25,965	$3M	0.33%	new	Timeline
JBLJABIL INC	33,315	$2.94M	0.32%	-155,500	Timeline
HLMNHILLMAN SOLUTIONS CORP	348,440	$2.93M	0.32%	new	Timeline
JKHYHENRY JACK & ASSOC INC	17,675	$2.66M	0.29%	+3,855	Timeline
APAMARTISAN PARTNERS ASSET MGMT	83,070	$2.66M	0.29%	new	Timeline
FCPTFOUR CORNERS PPTY TR INC	97,837	$2.63M	0.29%	+66,802	Timeline
BUNGE LTDBUNGE LTD	27,500	$2.63M	0.29%	0
BJBJS WHSL CLUB HLDGS INC	34,250	$2.61M	0.28%	0	Timeline
DECKDECKERS OUTDOOR CORP	5,710	$2.57M	0.28%	-240	Timeline
HOSTESS BRANDS INCHOSTESS BRANDS INC	101,472	$2.52M	0.27%	new
CGCARLYLE GROUP INC	77,475	$2.41M	0.26%	0	Timeline
SNXTD SYNNEX CORPORATION	24,810	$2.4M	0.26%	new	Timeline
KNXKNIGHT-SWIFT TRANSN HLDGS IN	41,340	$2.34M	0.25%	+150	Timeline
BMRNBIOMARIN PHARMACEUTICAL INC	23,670	$2.3M	0.25%	-1,310	Timeline
CMPCOMPASS MINERALS INTL INC	64,047	$2.2M	0.24%	new	Timeline
CCJCAMECO CORP	81,540	$2.13M	0.23%	0	Timeline
LNTALLIANT ENERGY CORP	39,956	$2.13M	0.23%	0	Timeline
DOCHEALTHPEAK PROPERTIES INC	96,505	$2.12M	0.23%	+510	Timeline
RRXREGAL REXNORD CORPORATION	14,855	$2.09M	0.23%	-2,230	Timeline
PTENPATTERSON-UTI ENERGY INC	178,660	$2.09M	0.23%	new	Timeline
DRIDARDEN RESTAURANTS INC	12,845	$1.99M	0.22%	0	Timeline
AAALCOA CORP	46,550	$1.98M	0.22%	+140	Timeline
CMSCMS ENERGY CORP	31,935	$1.96M	0.21%	0	Timeline
EQTEQT CORP	61,295	$1.96M	0.21%	+11,360	Timeline
PNRPENTAIR PLC	34,535	$1.91M	0.21%	new	Timeline
MSAMSA SAFETY INC	14,125	$1.89M	0.2%	0	Timeline
POOLPOOL CORP	5,410	$1.85M	0.2%	new	Timeline
IVVISHARES TR	4,437	$1.82M	0.2%	+18	Timeline
MOSMOSAIC CO	39,755	$1.82M	0.2%	0	Timeline
WBSWEBSTER FINL CORP	45,415	$1.79M	0.19%	0	Timeline
GMEDGLOBUS MED INC	31,375	$1.78M	0.19%	new	Timeline
LPROOPEN LENDING CORP	208,180	$1.47M	0.16%	new	Timeline
CALXCALIX INC	9,550	$512K	0.06%	+3,450	Timeline
XBISPDR SERIES TRUST	4,815	$367K	0.04%	+70	Timeline
VACMARRIOTT VACATIONS WORLDWIDE	2,420	$326K	0.04%	+50	Timeline
QNSTQUINSTREET INC	20,155	$320K	0.03%	+465	Timeline
INSTRUCTURE HLDGS INCINSTRUCTURE HLDGS INC	11,980	$310K	0.03%	-1,810
SGRYSURGERY PARTNERS INC	4,470	$154K	0.02%	new	Timeline
SYNEOS HEALTH INCSYNEOS HEALTH INC	1,080	$38.5K	<0.01%	new
AHCOADAPTHEALTH CORP	2,010	$25K	<0.01%	new	Timeline
IWMISHARES TR	140	$25K	<0.01%	-530	Timeline

Sold out in Q1 2023

Positions in the previous quarter's report that this quarter's report no longer lists.

Security	Shares before	Value before	Type
SAFEHOLD INCSAFEHOLD INC	399,535	$11.4M	shares
PACWEST BANCORP DELPACWEST BANCORP DEL	441,435	$10.1M	shares
DYDYCOM INDS INC	107,290	$10M	shares
PLYMPLYMOUTH INDUSTRIAL REIT INC	472,842	$9.07M	shares
HURNHURON CONSULTING GROUP INC	118,192	$8.58M	shares
ZWSZURN ELKAY WATER SOLNS CORP	385,058	$8.14M	shares
MAXAR TECHNOLOGIES INCMAXAR TECHNOLOGIES INC	152,495	$7.89M	shares
ALGMALLEGRO MICROSYSTEMS INC	258,537	$7.76M	shares
FRONTLINE PLC FFRONTLINE PLC F	586,820	$7.12M	shares
FFWMFIRST FNDTN INC	454,770	$6.52M	shares
CRLCHARLES RIV LABS INTL INC	13,940	$3.04M	shares
JUNIPER NETWORKS INCJUNIPER NETWORKS INC	78,215	$2.5M	shares
OVVOVINTIV INC	38,850	$1.97M	shares
WALWESTERN ALLIANCE BANCORP	31,780	$1.89M	shares
SBNYSIGNATURE BANK	16,035	$1.85M	shares
NATIONAL INSTRS CORPNATIONAL INSTRS CORP	8,245	$304K	shares
SPWRQSUNPOWER CORP	16,355	$295K	shares
ADUSADDUS HOMECARE CORP	2,880	$287K	shares

How Q1 2023 was built

Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).

Filing	Role	Amendment	Filed	Accepted	Ingested
13F-HR 0001947591-23-000004	base		2023-05-01	acceptance time not in the bulk data set	2026-10-07 18:32:36 UTC