# EDGAR Filing Document

**Accession Number:** 0001947591
**File Stem:** 0001947591-23-000002
**Filing Date:** 2023-2
**Character Count:** 15568
**Document Hash:** 68c9b50e87454247104d9bd2b3199485
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001947591-23-000002.hdr.sgml**: 20230206

**ACCESSION NUMBER**: 0001947591-23-000002

**CONFORMED SUBMISSION TYPE**: 13F-HR

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20221231

**FILED AS OF DATE**: 20230206

**DATE AS OF CHANGE**: 20230206

**EFFECTIVENESS DATE**: 20230206

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Mesirow Institutional Investment Management, Inc.
- **CENTRAL INDEX KEY:** 0001947591
- **IRS NUMBER:** 880612424

**FILING VALUES:**
- **FORM TYPE:** 13F-HR
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 028-22670
- **FILM NUMBER:** 23589346

**BUSINESS ADDRESS:**
- **STREET 1:** 353 N. CLARK ST.
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60654
- **BUSINESS PHONE:** 312-595-6000

**MAIL ADDRESS:**
- **STREET 1:** 353 N. CLARK ST.
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60654

### FORM 13F COVER PAGE

**Report for the Calendar Year or Quarter Ended:** 12-31-2022

**Check here if Amendment** [ ] **Amendment Number:** 

**This Amendment (Check only one.):** [ ] is a restatement.

[ ] adds new holdings entries.

**Institutional Investment Manager Filing this Report:**

**Name:** Mesirow Institutional Investment Management Inc.<br>**Address:** 353 N. CLARK ST.<br>CHICAGO, IL 60654

**Form 13F File Number:** 028-22670

The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists, and tables, are considered integral parts of this form.

**Person Signing this Report on Behalf of Reporting Manager:**

**Name:** Tricia Peterson<br>**Title:** Senior Vice President Compliance  Administration<br>**Phone:** 312-595-2272

**Signature, Place, and Date of Signing:**

Tricia Peterson  Chicago, IL  02-06-2023<br>[Signature]  [City, State]  [Date]

**Report Type (Check only one.):**

[x] **13F HOLDINGS REPORT.** (Check here if all holdings of this reporting manager are reported in this report.)

[ ] **13F NOTICE.** (Check here if no holdings are reported in this report, and all holdings are reported by other reporting manager(s).)

[ ] **13F COMBINATION REPORT.** (Check here if a portion of the holdings for this reporting manager are reported in this report and a portion are reported by other reporting manager(s).)

### Form 13F Summary Page

**Report Summary:**

**Number of Other Included Managers:** 0

**Form 13F Information Table Entry Total:** 117

**Form 13F Information Table Value Total:** $760004531

      (round to nearest dollar)

**List of Other Included Managers:**

Provide a numbered list of the name(s) and Form 13F file number(s) of all institutional investment managers with respect to which this report is filed, other than the manager filing this report.

[If there are no entries in this list, state “NONE” and omit the column headings and list entries.]

**NONE**

### FORM 13F INFORMATION TABLE

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| NAME OF ISSUER | TITLE OF CLASS | CUSIP | FIGI | VALUE (x$1000) | SHRS OR PRN AMT | SH/PRN | PUT/CALL | INVESTMENT DISCRETION | OTHER MANAGER | VOTING AUTHORITY | VOTING AUTHORITY | VOTING AUTHORITY |
| NAME OF ISSUER | TITLE OF CLASS | CUSIP | FIGI | VALUE (x$1000) | SHRS OR PRN AMT | SH/PRN | PUT/CALL | INVESTMENT DISCRETION | OTHER MANAGER | SOLE | SHARED | NONE |
| A10 NETWORKS INC | COM | 002121101 |  | 7600359 | 457027 | SH |  | SOLE | 0 | 430312 | 0 | 26715 |
| ADDUS HOMECARE CORP | COM | 006739106 |  | 286531 | 2880 | SH |  | SOLE | 0 | 2650 | 0 | 230 |
| ALCOA CORP | COM | 013872106 |  | 2110263 | 46410 | SH |  | SOLE | 0 | 45875 | 0 | 535 |
| ALEXANDER  BALDWIN INC NEW | COM | 014491104 |  | 12159610 | 649205 | SH |  | SOLE | 0 | 611545 | 0 | 37660 |
| ATI INC | COM | 01741R102 |  | 9166154 | 306971 | SH |  | SOLE | 0 | 289256 | 0 | 17715 |
| ALLEGRO MICROSYSTEMS INC | COM | 01749D105 |  | 7761281 | 258537 | SH |  | SOLE | 0 | 243462 | 0 | 15075 |
| ALLIANT ENERGY CORP | COM | 018802108 |  | 2205971 | 39956 | SH |  | SOLE | 0 | 39826 | 0 | 130 |
| AMEDISYS INC | COM | 023436108 |  | 5963503 | 71385 | SH |  | SOLE | 0 | 66095 | 0 | 5290 |
| AMERICAN WOODMARK CORPORATIO | COM | 030506109 |  | 7865727 | 160985 | SH |  | SOLE | 0 | 151605 | 0 | 9380 |
| AMPHASTAR PHARMACEUTICALS IN | COM | 03209R103 |  | 10491080 | 374414 | SH |  | SOLE | 0 | 352569 | 0 | 21845 |
| APTARGROUP INC | COM | 038336103 |  | 9277363 | 84355 | SH |  | SOLE | 0 | 79500 | 0 | 4855 |
| ARMADA HOFFLER PPTYS INC | COM | 04208T108 |  | 8031255 | 698370 | SH |  | SOLE | 0 | 657780 | 0 | 40590 |
| ASTEC INDS INC | COM | 046224101 |  | 8140132 | 200200 | SH |  | SOLE | 0 | 188535 | 0 | 11665 |
| ATLANTIC UN BANKSHARES CORP | COM | 04911A107 |  | 7279954 | 207170 | SH |  | SOLE | 0 | 191785 | 0 | 15385 |
| BJS WHSL CLUB HLDGS INC | COM | 05550J101 |  | 2265980 | 34250 | SH |  | SOLE | 0 | 34140 | 0 | 110 |
| BELDEN INC | COM | 077454106 |  | 9046818 | 125825 | SH |  | SOLE | 0 | 116405 | 0 | 9420 |
| BIOMARIN PHARMACEUTICAL INC | COM | 09061G101 |  | 2585180 | 24980 | SH |  | SOLE | 0 | 24900 | 0 | 80 |
| BLACK HILLS CORP | COM | 092113109 |  | 9507858 | 135170 | SH |  | SOLE | 0 | 126360 | 0 | 8810 |
| BLACKSTONE MTG TR INC | COM CL A | 09257W100 |  | 7782833 | 367635 | SH |  | SOLE | 0 | 346165 | 0 | 21470 |
| CMS ENERGY CORP | COM | 125896100 |  | 2022444 | 31935 | SH |  | SOLE | 0 | 31935 | 0 | 0 |
| CACI INTL INC | CL A | 127190304 |  | 318625 | 1060 | SH |  | SOLE | 0 | 975 | 0 | 85 |
| CADENCE BANK | COM | 12740C103 |  | 8595243 | 348550 | SH |  | SOLE | 0 | 322620 | 0 | 25930 |
| CALIX INC | COM | 13100M509 |  | 417423 | 6100 | SH |  | SOLE | 0 | 5620 | 0 | 480 |
| CAMECO CORP | COM | 13321L108 |  | 1848512 | 81540 | SH |  | SOLE | 0 | 81275 | 0 | 265 |
| CARLYLE GROUP INC | COM | 14316J108 |  | 2311854 | 77475 | SH |  | SOLE | 0 | 77225 | 0 | 250 |
| CASEYS GEN STORES INC | COM | 147528103 |  | 7982373 | 35580 | SH |  | SOLE | 0 | 33498 | 0 | 2082 |
| CHAMPIONX CORPORATION | COM | 15872M104 |  | 11490187 | 396350 | SH |  | SOLE | 0 | 371720 | 0 | 24630 |
| CHARLES RIV LABS INTL INC | COM | 159864107 |  | 3037526 | 13940 | SH |  | SOLE | 0 | 13775 | 0 | 165 |
| CIENA CORP | COM NEW | 171779309 |  | 11537539 | 226315 | SH |  | SOLE | 0 | 213240 | 0 | 13075 |
| COLLEGIUM PHARMACEUTICAL INC | COM | 19459J104 |  | 6740389 | 290534 | SH |  | SOLE | 0 | 269204 | 0 | 21330 |
| DARDEN RESTAURANTS INC | COM | 237194105 |  | 1776849 | 12845 | SH |  | SOLE | 0 | 12805 | 0 | 40 |
| DECKERS OUTDOOR CORP | COM | 243537107 |  | 2375002 | 5950 | SH |  | SOLE | 0 | 5930 | 0 | 20 |
| DIAMONDROCK HOSPITALITY CO | COM | 252784301 |  | 11124747 | 1358333 | SH |  | SOLE | 0 | 1279121 | 0 | 79212 |
| DINE BRANDS GLOBAL INC | COM | 254423106 |  | 5900241 | 91335 | SH |  | SOLE | 0 | 84535 | 0 | 6800 |
| DYCOM INDS INC | COM | 267475101 |  | 10042344 | 107290 | SH |  | SOLE | 0 | 101030 | 0 | 6260 |
| EQT CORP | COM | 26884L109 |  | 1689301 | 49935 | SH |  | SOLE | 0 | 49775 | 0 | 160 |
| ENERGY RECOVERY INC | COM | 29270J100 |  | 10289054 | 502150 | SH |  | SOLE | 0 | 472745 | 0 | 29405 |
| ENERPAC TOOL GROUP CORP | CL A COM | 292765104 |  | 9111075 | 357999 | SH |  | SOLE | 0 | 337084 | 0 | 20915 |
| ENTERPRISE FINL SVCS CORP | COM | 293712105 |  | 10065784 | 205592 | SH |  | SOLE | 0 | 193772 | 0 | 11820 |
| FIRST FNDTN INC | COM | 32026V104 |  | 6516854 | 454770 | SH |  | SOLE | 0 | 420795 | 0 | 33975 |
| FLUOR CORP NEW | COM | 343412102 |  | 12345719 | 356195 | SH |  | SOLE | 0 | 335445 | 0 | 20750 |
| FOUR CORNERS PPTY TR INC | COM | 35086T109 |  | 804738 | 31035 | SH |  | SOLE | 0 | 30360 | 0 | 675 |
| GENTEX CORP | COM | 371901109 |  | 2352992 | 86285 | SH |  | SOLE | 0 | 86005 | 0 | 280 |
| GENTHERM INC | COM | 37253A103 |  | 8270937 | 126680 | SH |  | SOLE | 0 | 117265 | 0 | 9415 |
| GIBRALTAR INDS INC | COM | 374689107 |  | 9245967 | 201525 | SH |  | SOLE | 0 | 189775 | 0 | 11750 |
| GREEN PLAINS INC | COM | 393222104 |  | 8611827 | 282355 | SH |  | SOLE | 0 | 261435 | 0 | 20920 |
| HANCOCK WHITNEY CORPORATION | COM | 410120109 |  | 8783511 | 181515 | SH |  | SOLE | 0 | 168005 | 0 | 13510 |
| HEARTLAND FINL USA INC | COM | 42234Q102 |  | 8141251 | 174630 | SH |  | SOLE | 0 | 161625 | 0 | 13005 |
| HEALTHPEAK PROPERTIES INC | COM | 42250P103 |  | 2406595 | 95995 | SH |  | SOLE | 0 | 95765 | 0 | 230 |
| HECLA MNG CO | COM | 422704106 |  | 7608749 | 1368480 | SH |  | SOLE | 0 | 1266355 | 0 | 102125 |
| HENRY JACK  ASSOC INC | COM | 426281101 |  | 2426239 | 13820 | SH |  | SOLE | 0 | 13775 | 0 | 45 |
| HOMESTREET INC | COM | 43785V102 |  | 6407744 | 232333 | SH |  | SOLE | 0 | 215193 | 0 | 17140 |
| HURON CONSULTING GROUP INC | COM | 447462102 |  | 8580739 | 118192 | SH |  | SOLE | 0 | 111307 | 0 | 6885 |
| ICU MED INC | COM | 44930G107 |  | 9063761 | 57555 | SH |  | SOLE | 0 | 54075 | 0 | 3480 |
| ITT INC | COM | 45073V108 |  | 10463117 | 129015 | SH |  | SOLE | 0 | 121800 | 0 | 7215 |
| INSTRUCTURE HLDGS INC | COM | 457790103 |  | 323238 | 13790 | SH |  | SOLE | 0 | 12695 | 0 | 1095 |
| INVENTRUST PPTYS CORP | COM NEW | 46124J201 |  | 5737206 | 242383 | SH |  | SOLE | 0 | 224363 | 0 | 18020 |
| ISHARES TR | CORE S ETF | 464287200 |  | 1697824 | 4419 | SH |  | SOLE | 0 | 4419 | 0 | 0 |
| ISHARES TR | RUSSELL 2000 ETF | 464287655 |  | 116821 | 670 | SH |  | SOLE | 0 | 670 | 0 | 0 |
| JABIL INC | COM | 466313103 |  | 12877183 | 188815 | SH |  | SOLE | 0 | 177840 | 0 | 10975 |
| JUNIPER NETWORKS INC | COM | 48203R104 |  | 2499751 | 78215 | SH |  | SOLE | 0 | 78020 | 0 | 195 |
| KEMPER CORP | COM | 488401100 |  | 2631708 | 53490 | SH |  | SOLE | 0 | 53320 | 0 | 170 |
| KIRBY CORP | COM | 497266106 |  | 8250314 | 128210 | SH |  | SOLE | 0 | 120800 | 0 | 7410 |
| KITE RLTY GROUP TR | COM NEW | 49803T300 |  | 11477618 | 545255 | SH |  | SOLE | 0 | 513525 | 0 | 31730 |
| KNIGHT-SWIFT TRANSN HLDGS IN | CL A | 499049104 |  | 2158768 | 41190 | SH |  | SOLE | 0 | 41080 | 0 | 110 |
| KONTOOR BRANDS INC | COM | 50050N103 |  | 11864433 | 296685 | SH |  | SOLE | 0 | 279385 | 0 | 17300 |
| KOSMOS ENERGY LTD | COM | 500688106 |  | 6690879 | 1052025 | SH |  | SOLE | 0 | 973700 | 0 | 78325 |
| LANTHEUS HLDGS INC | COM | 516544103 |  | 9790639 | 192124 | SH |  | SOLE | 0 | 180604 | 0 | 11520 |
| MKS INSTRS INC | COM | 55306N104 |  | 9949674 | 117428 | SH |  | SOLE | 0 | 110568 | 0 | 6860 |
| MSA SAFETY INC | COM | 553498106 |  | 2036684 | 14125 | SH |  | SOLE | 0 | 14080 | 0 | 45 |
| MARRIOTT VACATIONS WORLDWIDE | COM | 57164Y107 |  | 318978 | 2370 | SH |  | SOLE | 0 | 2185 | 0 | 185 |
| MAXAR TECHNOLOGIES INC | COM | 57778K105 |  | 7890091 | 152495 | SH |  | SOLE | 0 | 143600 | 0 | 8895 |
| MERIT MED SYS INC | COM | 589889104 |  | 8511264 | 120522 | SH |  | SOLE | 0 | 111567 | 0 | 8955 |
| MOSAIC CO NEW | COM | 61945C103 |  | 1744052 | 39755 | SH |  | SOLE | 0 | 39625 | 0 | 130 |
| NATIONAL INSTRS CORP | COM | 636518102 |  | 304241 | 8245 | SH |  | SOLE | 0 | 7685 | 0 | 560 |
| NEW YORK CMNTY BANCORP INC | COM | 649445103 |  | 2126092 | 247220 | SH |  | SOLE | 0 | 246425 | 0 | 795 |
| NEXSTAR MEDIA GROUP INC | COMMON STOCK | 65336K103 |  | 8930031 | 51020 | SH |  | SOLE | 0 | 48050 | 0 | 2970 |
| NISOURCE INC | COM | 65473P105 |  | 3891309 | 141915 | SH |  | SOLE | 0 | 140710 | 0 | 1205 |
| NORTHWEST NAT HLDG CO | COM | 66765N105 |  | 9528898 | 200229 | SH |  | SOLE | 0 | 185269 | 0 | 14960 |
| OLLIES BARGAIN OUTLET HLDGS | COM | 681116109 |  | 9169633 | 195765 | SH |  | SOLE | 0 | 184340 | 0 | 11425 |
| ONE GAS INC | COM | 68235P108 |  | 6211312 | 82030 | SH |  | SOLE | 0 | 75895 | 0 | 6135 |
| OVINTIV INC | COM | 69047Q102 |  | 1970084 | 38850 | SH |  | SOLE | 0 | 38725 | 0 | 125 |
| PACWEST BANCORP DEL | COM | 695263103 |  | 10130933 | 441435 | SH |  | SOLE | 0 | 415695 | 0 | 25740 |
| PERFICIENT INC | COM | 71375U101 |  | 9806576 | 140435 | SH |  | SOLE | 0 | 132230 | 0 | 8205 |
| PHYSICIANS RLTY TR | COM | 71943U104 |  | 9420882 | 651063 | SH |  | SOLE | 0 | 612948 | 0 | 38115 |
| PLYMOUTH INDL REIT INC | COM | 729640102 |  | 9069110 | 472842 | SH |  | SOLE | 0 | 445982 | 0 | 26860 |
| PORTLAND GEN ELEC CO | COM NEW | 736508847 |  | 6786402 | 138498 | SH |  | SOLE | 0 | 127213 | 0 | 11285 |
| QUINSTREET INC | COM | 74874Q100 |  | 282552 | 19690 | SH |  | SOLE | 0 | 18360 | 0 | 1330 |
| RADIAN GROUP INC | COM | 750236101 |  | 8503199 | 445894 | SH |  | SOLE | 0 | 419839 | 0 | 26055 |
| RAMBUS INC DEL | COM | 750917106 |  | 7640263 | 213296 | SH |  | SOLE | 0 | 200856 | 0 | 12440 |
| REGAL REXNORD CORPORATION | COM | 758750103 |  | 2049902 | 17085 | SH |  | SOLE | 0 | 16887 | 0 | 198 |
| SPDR SER TR | S BIOTECH | 78464A870 |  | 393835 | 4745 | SH |  | SOLE | 0 | 4370 | 0 | 375 |
| SPX TECHNOLOGIES INC | COM | 78473E103 |  | 7276055 | 110831 | SH |  | SOLE | 0 | 102591 | 0 | 8240 |
| SABRA HEALTH CARE REIT INC | COM | 78573L106 |  | 8051035 | 647710 | SH |  | SOLE | 0 | 610635 | 0 | 37075 |
| SAFEHOLD INC | COM | 78645L100 |  | 11434692 | 399535 | SH |  | SOLE | 0 | 376245 | 0 | 23290 |
| SIGNATURE BK NEW YORK N Y | COM | 82669G104 |  | 1847553 | 16035 | SH |  | SOLE | 0 | 15985 | 0 | 50 |
| SOUTHSTATE CORPORATION | COM | 840441109 |  | 8706185 | 114015 | SH |  | SOLE | 0 | 105555 | 0 | 8460 |
| SOUTHSIDE BANCSHARES INC | COM | 84470P109 |  | 6994261 | 194339 | SH |  | SOLE | 0 | 179819 | 0 | 14520 |
| SPROUTS FMRS MKT INC | COM | 85208M102 |  | 7161377 | 221235 | SH |  | SOLE | 0 | 204750 | 0 | 16485 |
| SUNPOWER CORP | COM | 867652406 |  | 294881 | 16355 | SH |  | SOLE | 0 | 15055 | 0 | 1300 |
| SUPERNUS PHARMACEUTICALS INC | COM | 868459108 |  | 9818346 | 275255 | SH |  | SOLE | 0 | 258550 | 0 | 16705 |
| TENET HEALTHCARE CORP | COM NEW | 88033G407 |  | 8676814 | 177840 | SH |  | SOLE | 0 | 167295 | 0 | 10545 |
| TRAVELCENTERS OF AMERICA INC | COM NEW | 89421B109 |  | 10000046 | 223315 | SH |  | SOLE | 0 | 210270 | 0 | 13045 |
| TRICO BANCSHARES | COM | 896095106 |  | 6520295 | 127874 | SH |  | SOLE | 0 | 118319 | 0 | 9555 |
| UNDER ARMOUR INC | CL A | 904311107 |  | 10057028 | 989865 | SH |  | SOLE | 0 | 932160 | 0 | 57705 |
| UNITED CMNTY BKS BLAIRSVLE G | COM | 90984P303 |  | 8189740 | 242300 | SH |  | SOLE | 0 | 224260 | 0 | 18040 |
| WEBSTER FINL CORP | COM | 947890109 |  | 2149946 | 45415 | SH |  | SOLE | 0 | 45415 | 0 | 0 |
| WESTERN ALLIANCE BANCORP | COM | 957638109 |  | 1892817 | 31780 | SH |  | SOLE | 0 | 31680 | 0 | 100 |
| WINTRUST FINL CORP | COM | 97650W108 |  | 6783406 | 80258 | SH |  | SOLE | 0 | 74263 | 0 | 5995 |
| WYNDHAM HOTELS  RESORTS INC | COM | 98311A105 |  | 9964146 | 139730 | SH |  | SOLE | 0 | 131577 | 0 | 8153 |
| ZURN ELKAY WATER SOLNS CORP | COM | 98983L108 |  | 8143977 | 385058 | SH |  | SOLE | 0 | 362618 | 0 | 22440 |
| AXIS CAP HLDGS LTD | SHS | G0692U109 |  | 11130635 | 205476 | SH |  | SOLE | 0 | 193476 | 0 | 12000 |
| BUNGE LIMITED | COM | G16962105 |  | 2743675 | 27500 | SH |  | SOLE | 0 | 27410 | 0 | 90 |
| FRONTLINE LTD | SHS NEW | G3682E192 |  | 7123995 | 586820 | SH |  | SOLE | 0 | 552570 | 0 | 34250 |
| SIGNET JEWELERS LIMITED | SHS | G81276100 |  | 8323880 | 122410 | SH |  | SOLE | 0 | 115270 | 0 | 7140 |
| TECHNIPFMC PLC | COM | G87110105 |  | 13107237 | 1075245 | SH |  | SOLE | 0 | 1009675 | 0 | 65570 |
| COPA HOLDINGS SA | CL A | P31076105 |  | 10595026 | 127390 | SH |  | SOLE | 0 | 120050 | 0 | 7340 |

---