Muzinich & Co., Inc. — 13F Holdings & Portfolio

CIK 1618824 · latest 13F-HR filed 2026-10-22

Muzinich & Co., Inc. manages $301.3M in 13F-reported U.S. long-equity assets across 23 reported positions as of its 2026-09-30 13F-HR filing. Its largest disclosed positions are ARCC (14.53%), BXSL (9.50%), MAIN (9.30%). Quarter over quarter (versus its 2026-06-30 filing) the fund opened 0 new positions and exited 15; 9 existing positions rose in reported value and 5 fell.

AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.

Loading holdings…
AUM
$301.3M

Long-equity book

Holdings
23

Distinct positions

Period
2026-09-30

Filed 2026-10-22

Q/Q Activity
+0 / −15 / ↑9 / ↓5

vs 2026-06-30

Portfolio charts

Latest quarter's book, what changed, and how the portfolio has evolved across filings.

Portfolio map

Q3 26

Box size = position value; colour = change in share count vs the prior quarter (green added, red trimmed, blue new). Rows split across managers or share classes are combined. Click a box for the stock.

Sector mix

% of 13F value

Sectors from each company's SIC code; funds and ETFs grouped separately.

Biggest buys and sells

Q2 26 → Q3 26

Estimated from the change in shares held × the quarter-end price, so price moves alone don't count as buying. New and exited positions are included.

13F assets and positions

4 quarters

Total reported 13F value (bars) and number of positions (line) each quarter. Value changes include market moves.

Top positions over time

reported value

The eight largest current positions, valued at each quarter end.

Concentration

top 10 = 76.5%

Cumulative share of the portfolio held in the largest N positions.

Firm Profile & Key People

As of the firm’s regulatory filing dated Jun 16, 2026.

Assets Under Management
$31.27B
Discretionary
$31.27B
Employees
110
Accounts
85
Address
450 PARK AVE
NEW YORK, NY 10022-2692
Phone
(212) 888-3413
Name Title / Status Ownership Type
BAKER, ANNMARIE, THERESA ControlDIRECTOR
since Mar 2019
Less than 5%Individual
Edwards, William ControlCHIEF COMPLIANCE OFFICER
since Jun 2025
Less than 5%Individual
FEHRE, PAUL, FREDERICK ControlCHIEF OPERATING OFFICER & DIRECTOR
since Jun 2014
Less than 5%Individual
LUDWIG, MICHAEL ControlCHIEF FINANCIAL OFFICER & DIRECTOR
since Sep 2003
Less than 5%Individual
MUZINICH, GEORGE, MILAN ControlEXECUTIVE CHAIRMAN, DIRECTOR & SHAREHOLDER
since Jul 1988
75% or moreIndividual
MUZINICH, JUSTIN, GEORGE ControlCHIEF EXECUTIVE OFFICER & DIRECTOR
since Oct 2021
Less than 5%Individual
RIVKIN, CHERYL, OBEDIN ControlCHIEF ADMINISTRATIVE OFFICER & DIRECTOR
since Oct 2012
Less than 5%Individual
TOM, FENTON, CHARLES ControlHEAD OF STRATEGY AND HUMAN CAPITAL & DIRECTOR
since May 2018
Less than 5%Individual
2008 MUZINICH FAMILY TRUSTSHAREHOLDER
since Dec 2008
10–25%Domestic Entity
GM TRUST ASHAREHOLDER
since Aug 2021
10–25%Domestic Entity
GM TRUST GSHAREHOLDER
since Aug 2021
10–25%Domestic Entity
MUZINICH 2011 GST EXEMPT FAMILY TRUSTSHAREHOLDER
since Apr 2011
10–25%Domestic Entity
MUZINICH, JUSTIN, GEORGE Control
Indirect owner via GM TRUST A
TRUSTEE
since Mar 2021
General partner, trustee or managerIndividual
HALPERIN, ALAN
Indirect owner via 2008 MUZINICH FAMILY TRUST
TRUSTEE
since May 2017
General partner, trustee or managerIndividual
HALPERIN, ALAN
Indirect owner via MUZINICH 2011 GST EXEMPT FAMILY TRUST
TRUSTEE
since May 2017
General partner, trustee or managerIndividual
Stanger, Nancy, Michelle
Indirect owner via GM TRUST G
TRUSTEE
since Jun 2021
General partner, trustee or managerIndividual
Ownership & leadership changes · 23 filings with changes since Feb 27, 2012

From the firm’s regulatory filings, newest first. Dates are filing dates: a filing that no longer lists someone does not say when they left.

Jun 16, 2026 filing
  • No longer listedKAUFMAN, ADAM, KYLE · CHIEF LEGAL OFFICER & DIRECTOR · Less than 5% · control person · listed since Mar 2016
  • No longer listedKAUFMAN, ADAM, KYLE · TRUSTEE · General partner, trustee or manager · indirect via 2008 MUZINICH FAMILY TRUST · control person · listed since Mar 2017
  • No longer listedKAUFMAN, ADAM, KYLE · TRUSTEE · General partner, trustee or manager · indirect via MUZINICH 2011 GST EXEMPT FAMILY TRUST · control person · listed since Aug 2017
Jun 17, 2025 filing
  • No longer listedKREINIK, STEVEN, MARC · CHIEF COMPLIANCE OFFICER · Less than 5% · control person · listed since Mar 2016
  • AddedEdwards, William · CHIEF COMPLIANCE OFFICER · Less than 5% · control person
Mar 27, 2025 filing
  • No longer listedCLARK, MARK, WILLIAM · CO-CHIEF FINANCIAL OFFICER · Less than 5% · control person · listed since Apr 2007
  • ChangedLUDWIG, MICHAEL · title CO-CHIEF FINANCIAL OFFICER & DIRECTOR → CHIEF FINANCIAL OFFICER & DIRECTOR
  • ChangedRIVKIN, CHERYL, OBEDIN · title CHIEF ADMINISTRATIVE OFFICER & DIRECTOR, COMPLIANCE & DIRECTOR → CHIEF ADMINISTRATIVE OFFICER & DIRECTOR
Jun 5, 2024 filing
  • ChangedCLARK, MARK, WILLIAM · title CO-CHIEF FINANCIAL OFFICER & DIRECTOR → CO-CHIEF FINANCIAL OFFICER
Aug 15, 2023 filing
  • ChangedFEHRE, PAUL, FREDERICK · title CHIEF OPERATING OFFICER → CHIEF OPERATING OFFICER & DIRECTOR
Mar 30, 2023 filing
  • ChangedCLARK, MARK, WILLIAM · title CHIEF FINANCIAL OFFICER → CO-CHIEF FINANCIAL OFFICER & DIRECTOR
  • ChangedKAUFMAN, ADAM, KYLE · title CHIEF LEGAL OFFICER → CHIEF LEGAL OFFICER & DIRECTOR
  • ChangedLUDWIG, MICHAEL · title DIRECTOR → CO-CHIEF FINANCIAL OFFICER & DIRECTOR
  • ChangedMUZINICH, GEORGE, MILAN · title EXECUTIVE CHAIRMAN & SHAREHOLDER → EXECUTIVE CHAIRMAN, DIRECTOR & SHAREHOLDER
  • ChangedMUZINICH, JUSTIN, GEORGE · title PRESIDENT & CEO → CHIEF EXECUTIVE OFFICER & DIRECTOR
  • ChangedRIVKIN, CHERYL, OBEDIN · title CHIEF ADMINISTRATIVE OFFICER & DIRECTOR, COMPLIANCE → CHIEF ADMINISTRATIVE OFFICER & DIRECTOR, COMPLIANCE & DIRECTOR
  • ChangedTOM, FENTON, CHARLES · title HEAD OF STRATEGY AND HUMAN CAPITAL → HEAD OF STRATEGY AND HUMAN CAPITAL & DIRECTOR
Mar 31, 2022 filing
  • No longer listedCLARK, MARK · CHIEF FINANCIAL OFFICER · Less than 5% · control person · listed since Apr 2007
  • AddedCLARK, MARK, WILLIAM · CHIEF FINANCIAL OFFICER · Less than 5% · control person
  • ChangedKAUFMAN, ADAM, KYLE · title GENERAL COUNSEL → CHIEF LEGAL OFFICER
  • ChangedMUZINICH, GEORGE, MILAN · title CHAIRMAN, CHIEF EXECUTIVE OFFICER & SHAREHOLDER → EXECUTIVE CHAIRMAN & SHAREHOLDER
  • ChangedMUZINICH, JUSTIN, GEORGE · title DIRECTOR → PRESIDENT & CEO
Nov 11, 2021 filing
  • Listed againHALPERIN, ALAN · TRUSTEE · General partner, trustee or manager · indirect via 2008 MUZINICH FAMILY TRUST
  • Listed againHALPERIN, ALAN · TRUSTEE · General partner, trustee or manager · indirect via MUZINICH 2011 GST EXEMPT FAMILY TRUST
  • Listed againKAUFMAN, ADAM, KYLE · TRUSTEE · General partner, trustee or manager · indirect via MUZINICH 2011 GST EXEMPT FAMILY TRUST · control person
  • Listed againMUZINICH, JUSTIN, GEORGE · DIRECTOR · Less than 5% · control person
  • ChangedMUZINICH, JUSTIN, GEORGE · indirect via GM TRUST A: now a control person
Aug 31, 2021 filing
  • No longer listedHALPERIN, ALAN · TRUSTEE · General partner, trustee or manager · indirect via 2008 MUZINICH FAMILY TRUST · listed since May 2017
  • No longer listedHALPERIN, ALAN · TRUSTEE · General partner, trustee or manager · indirect via MUZINICH 2011 GST EXEMPT FAMILY TRUST · listed since May 2017
  • No longer listedKAUFMAN, ADAM, KYLE · TRUSTEE · General partner, trustee or manager · indirect via MUZINICH 2011 GST EXEMPT FAMILY TRUST · control person · listed since Aug 2017
  • AddedGM TRUST A · SHAREHOLDER · 10–25%
  • AddedGM TRUST G · SHAREHOLDER · 10–25%
  • AddedMUZINICH, JUSTIN, GEORGE · TRUSTEE · General partner, trustee or manager · indirect via GM TRUST A
  • AddedStanger, Nancy, Michelle · TRUSTEE · General partner, trustee or manager · indirect via GM TRUST G
Jun 19, 2019 filing
  • AddedBAKER, ANNMARIE, THERESA · DIRECTOR · Less than 5% · control person
Older changes (14 more filings)
May 17, 2018 filing
  • AddedTOM, FENTON, CHARLES · HEAD OF STRATEGY AND HUMAN CAPITAL · Less than 5% · control person
Mar 29, 2018 filing
  • ChangedRIVKIN, CHERYL, OBEDIN · title CHIEF ADMINISTRATIVE OFFICER → CHIEF ADMINISTRATIVE OFFICER & DIRECTOR, COMPLIANCE
Jan 11, 2018 filing
  • No longer listed2012 STOCK TRUST · SHAREHOLDER · 10–25% · listed since Dec 2012
  • No longer listedHALPERIN, ALAN · TRUSTEE · General partner, trustee or manager · indirect via 2012 STOCK TRUST · listed since May 2017
  • No longer listedMUZINICH, JUSTIN, GEORGE · SHAREHOLDER · 5–10% · listed since Dec 2012
  • No longer listedMUZINICH, JUSTIN, GEORGE · TRUSTEE · General partner, trustee or manager · indirect via 2012 STOCK TRUST · listed since Dec 2012
  • ChangedMUZINICH, GEORGE, MILAN · ownership 25–50% → 75% or more
Aug 31, 2017 filing
  • No longer listedHALPERIN, ALAN · TRUSTEE · General partner, trustee or manager · indirect via THE 2012 STOCK TRUST · control person · listed since May 2017
  • No longer listedHALPERIN, ALAN · TRUSTEE · General partner, trustee or manager · indirect via MUZINICH 2011 TRUST · control person · listed since May 2017
  • No longer listedMUZINICH 2011 GST TRUST · SHAREHOLDER · 10–25% · listed since Apr 2011
  • No longer listedMUZINICH, JUSTIN, GEORGE · TRUSTEE · General partner, trustee or manager · indirect via MUZINICH 2011 TRUST · control person · listed since Apr 2011
  • No longer listedMUZINICH, JUSTIN, GEORGE · TRUSTEE · General partner, trustee or manager · indirect via THE 2012 STOCK TRUST · control person · listed since Dec 2012
  • AddedHALPERIN, ALAN · TRUSTEE · General partner, trustee or manager · indirect via MUZINICH 2011 GST EXEMPT FAMILY TRUST
  • AddedHALPERIN, ALAN · TRUSTEE · General partner, trustee or manager · indirect via 2012 STOCK TRUST
  • AddedKAUFMAN, ADAM, KYLE · TRUSTEE · General partner, trustee or manager · indirect via MUZINICH 2011 GST EXEMPT FAMILY TRUST · control person
  • AddedMUZINICH 2011 GST EXEMPT FAMILY TRUST · SHAREHOLDER · 10–25%
  • AddedMUZINICH, JUSTIN, GEORGE · TRUSTEE · General partner, trustee or manager · indirect via 2012 STOCK TRUST
  • ChangedHALPERIN, ALAN · indirect via 2008 MUZINICH FAMILY TRUST: no longer a control person
  • ChangedMUZINICH, JUSTIN, GEORGE · no longer a control person
Jun 2, 2017 filing
  • No longer listedAngell, Christopher, C. · TRUSTEE · General partner, trustee or manager · indirect via 2008 MUZINICH FAMILY TRUST · control person · listed since Dec 2008
  • No longer listedAngell, Christopher, C. · TRUSTEE · General partner, trustee or manager · indirect via MUZINICH 2011 TRUST · control person · listed since Apr 2011
  • No longer listedAngell, Christopher, C. · TRUSTEE · General partner, trustee or manager · indirect via THE 2012 STOCK TRUST · control person · listed since Dec 2012
  • AddedHALPERIN, ALAN · TRUSTEE · General partner, trustee or manager · indirect via 2008 MUZINICH FAMILY TRUST · control person
  • AddedHALPERIN, ALAN · TRUSTEE · General partner, trustee or manager · indirect via THE 2012 STOCK TRUST · control person
  • AddedHALPERIN, ALAN · TRUSTEE · General partner, trustee or manager · indirect via MUZINICH 2011 TRUST · control person
Mar 31, 2017 filing
  • No longer listedMUZINICH, JUSTIN, GEORGE · TRUSTEE · General partner, trustee or manager · indirect via 2008 MUZINICH FAMILY TRUST · control person · listed since Dec 2008
  • AddedKAUFMAN, ADAM, KYLE · TRUSTEE · General partner, trustee or manager · indirect via 2008 MUZINICH FAMILY TRUST · control person
  • ChangedMUZINICH, JUSTIN, GEORGE · title PRESIDENT, DIRECTOR & SHAREHOLDER → SHAREHOLDER
Mar 30, 2016 filing
  • No longer listedALFREY, KURT, RONALD · GLOBAL GENERAL COUNSEL AND CHIEF COMPLIANCE OFFICER · Less than 5% · control person · listed since Nov 2014
  • AddedAngell, Christopher, C. · TRUSTEE · General partner, trustee or manager · indirect via 2008 MUZINICH FAMILY TRUST · control person
  • AddedAngell, Christopher, C. · TRUSTEE · General partner, trustee or manager · indirect via MUZINICH 2011 TRUST · control person
  • AddedAngell, Christopher, C. · TRUSTEE · General partner, trustee or manager · indirect via THE 2012 STOCK TRUST · control person
  • AddedKAUFMAN, ADAM, KYLE · GENERAL COUNSEL · Less than 5% · control person
  • AddedKREINIK, STEVEN, MARC · CHIEF COMPLIANCE OFFICER · Less than 5% · control person
  • ChangedMUZINICH, JUSTIN, GEORGE · ownership 25–50% → 5–10%
Mar 25, 2015 filing
  • No longer listedPASTORE, THOMAS · CHIEF OPERATING OFFICER · Less than 5% · control person · listed since Dec 2011
  • ChangedALFREY, KURT, RONALD · title GENERAL COUNSEL AND CHIEF COMPLIANCE OFFICER → GLOBAL GENERAL COUNSEL AND CHIEF COMPLIANCE OFFICER
Nov 25, 2014 filing
  • No longer listedGOLDENBERG, DAVID, MARK · GENERAL COUNSEL AND CHIEF COMPLIANCE OFFICER · Less than 5% · control person · listed since Oct 2012
  • AddedALFREY, KURT, RONALD · GENERAL COUNSEL AND CHIEF COMPLIANCE OFFICER · Less than 5% · control person
  • AddedFEHRE, PAUL, FREDERICK · CHIEF OPERATING OFFICER · Less than 5% · control person
Mar 28, 2014 filing
  • ChangedCLARK, MARK · title CHIEF FINANCIAL OFFICER & DIRECTOR → CHIEF FINANCIAL OFFICER
Apr 15, 2013 filing
  • ChangedMUZINICH, GEORGE, MILAN · title CHIEF EXECUTIVE OFFICER, DIRECTOR & SHAREHOLDER → CHAIRMAN, CHIEF EXECUTIVE OFFICER & SHAREHOLDER
Mar 26, 2013 filing
  • Added2012 STOCK TRUST · SHAREHOLDER · 10–25%
  • AddedMUZINICH, JUSTIN, GEORGE · TRUSTEE · General partner, trustee or manager · indirect via 2008 MUZINICH FAMILY TRUST · control person
  • AddedMUZINICH, JUSTIN, GEORGE · TRUSTEE · General partner, trustee or manager · indirect via MUZINICH 2011 TRUST · control person
  • AddedMUZINICH, JUSTIN, GEORGE · TRUSTEE · General partner, trustee or manager · indirect via THE 2012 STOCK TRUST · control person
  • Changed2008 MUZINICH FAMILY TRUST · title OWNER → SHAREHOLDER
  • ChangedCLARK, MARK · title CHIEF FINANCIAL OFFICER → CHIEF FINANCIAL OFFICER & DIRECTOR
  • ChangedMUZINICH 2011 GST TRUST · title OWNER → SHAREHOLDER
  • ChangedMUZINICH, GEORGE, MILAN · title PRESIDENT & OWNER → CHIEF EXECUTIVE OFFICER, DIRECTOR & SHAREHOLDER; ownership 50–75% → 25–50%
  • ChangedMUZINICH, JUSTIN, GEORGE · title DIRECTOR → PRESIDENT, DIRECTOR & SHAREHOLDER; ownership 5–10% → 25–50%
Oct 16, 2012 filing
  • AddedGOLDENBERG, DAVID, MARK · GENERAL COUNSEL AND CHIEF COMPLIANCE OFFICER · Less than 5% · control person
  • ChangedRIVKIN, CHERYL, OBEDIN · title CHIEF COMPLIANCE OFFICER → CHIEF ADMINISTRATIVE OFFICER
Feb 27, 2012 filing (earliest on record)
  • Listed2008 MUZINICH FAMILY TRUST · OWNER · 10–25%
  • ListedCLARK, MARK · CHIEF FINANCIAL OFFICER · Less than 5% · control person
  • ListedLUDWIG, MICHAEL · DIRECTOR · Less than 5% · control person
  • ListedMUZINICH 2011 GST TRUST · OWNER · 10–25%
  • ListedMUZINICH, GEORGE, MILAN · PRESIDENT & OWNER · 50–75% · control person
  • ListedMUZINICH, JUSTIN, GEORGE · DIRECTOR · 5–10% · control person
  • ListedPASTORE, THOMAS · CHIEF OPERATING OFFICER · Less than 5% · control person
  • ListedRIVKIN, CHERYL, OBEDIN · CHIEF COMPLIANCE OFFICER · Less than 5% · control person

Quarter-over-quarter changes

Changes in reported position value vs the prior 13F, so price moves count too, not just shares bought or sold.

Top Adds (vs prior quarter)

Show all 9 →

New Positions

  • No new positions this quarter.
Show all 0 →

Muzinich & Co., Inc. Holdings (2026-09-30)

Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).

# Issuer Symbol CUSIP Value Weight Shares Type
1 ARES CAPITAL CORP ARCC 04010L103 $43.8M 14.53% 2,292,959 SH
2 BLACKSTONE SECD LENDING FD BXSL 09261X102 $28.6M 9.50% 1,194,130 SH
3 MAIN STR CAP CORP MAIN 56035L104 $28.0M 9.30% 509,217 SH
4 GOLUB CAP BDC INC GBDC 38173M102 $27.3M 9.05% 2,158,925 SH
5 BLUE OWL CAPITAL CORPORATION OBDC 69121K104 $25.5M 8.47% 2,433,869 SH
6 HERCULES CAPITAL INC HTGC 427096508 $24.5M 8.12% 1,455,235 SH
7 SIXTH STREET SPECIALTY LENDI TSLX 83012A109 $20.4M 6.78% 1,134,403 SH
8 MORGAN STANLEY DIRECT LENDIN MSDL 61774A103 $12.1M 4.00% 885,128 SH
9 CAPITAL SOUTHWEST CORP CSWC 140501107 $10.5M 3.48% 453,109 SH
10 BAIN CAP SPECIALTY FIN INC BCSF 05684B107 $9.7M 3.23% 880,720 SH
11 FS KKR CAP CORP FSK 302635206 $9.3M 3.09% 848,104 SH
12 GOLDMAN SACHS BDC INC GSBD 38147U107 $8.3M 2.77% 916,700 SH
13 CARLYLE SECURED LENDING INC CGBD 872280102 $8.3M 2.74% 773,421 SH
14 FIDUS INVT CORP FDUS 316500107 $7.3M 2.42% 378,400 SH
15 BARINGS BDC INC BBDC 06759L103 $6.9M 2.29% 798,922 SH
16 MIDCAP FINANCIAL INVSTMNT CO MFIC 03761U502 $6.6M 2.20% 757,054 SH
17 SLR INVESTMENT CORP SLRC 83413U100 $6.3M 2.10% 545,268 SH
18 NEW MTN FIN CORP NMFC 647551100 $6.1M 2.02% 878,605 SH
19 OAKTREE SPECIALTY LENDING CO OCSL 67401P405 $5.8M 1.92% 485,949 SH
20 STELLUS CAP INVT CORP SCM 858568108 $2.0M 0.65% 262,816 SH
21 PENNANTPARK FLOATING RATE CA PFLT 70806A106 $1.5M 0.51% 224,096 SH
22 CRESCENT CAP BDC INC CCAP 225655109 $1.4M 0.47% 155,186 SH
23 BLACKROCK TCP CAPITAL CORP TCPC 09259E108 $1.1M 0.35% 266,048 SH
Filing History
Period Filed AUM Holdings Accession
2026-09-30 2026-10-22 $301.3M 23 0001618824-26-000007
2026-06-30 2026-07-27 $292.7M 38 0001618824-26-000006
2026-03-31 2026-04-24 $285.9M 38 0001618824-26-000004
2025-12-31 2026-01-21 $318.0M 38 0001618824-26-000002
Filer Information
Address
450 PARK AVENUE
18TH FLOOR
NEW YORK, NY 10022
Phone
(212) 888-3413
Filing Manager
Muzinich & Co., Inc.
NEW YORK, NY
Signatory
William Edwards
Chief Compliance Officer