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.
Long-equity book
Distinct positions
Filed 2026-10-22
vs 2026-06-30
Portfolio charts
Latest quarter's book, what changed, and how the portfolio has evolved across filings.
Portfolio map
Q3 26Box 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 valueSectors from each company's SIC code; funds and ETFs grouped separately.
Biggest buys and sells
Q2 26 → Q3 26Estimated 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 quartersTotal reported 13F value (bars) and number of positions (line) each quarter. Value changes include market moves.
Top positions over time
reported valueThe 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.
As of the firm’s regulatory filing dated Jun 16, 2026.
NEW YORK, NY 10022-2692
| Name | Title / Status | Ownership | Type |
|---|---|---|---|
| BAKER, ANNMARIE, THERESA Control | DIRECTOR since Mar 2019 | Less than 5% | Individual |
| Edwards, William Control | CHIEF COMPLIANCE OFFICER since Jun 2025 | Less than 5% | Individual |
| FEHRE, PAUL, FREDERICK Control | CHIEF OPERATING OFFICER & DIRECTOR since Jun 2014 | Less than 5% | Individual |
| LUDWIG, MICHAEL Control | CHIEF FINANCIAL OFFICER & DIRECTOR since Sep 2003 | Less than 5% | Individual |
| MUZINICH, GEORGE, MILAN Control | EXECUTIVE CHAIRMAN, DIRECTOR & SHAREHOLDER since Jul 1988 | 75% or more | Individual |
| MUZINICH, JUSTIN, GEORGE Control | CHIEF EXECUTIVE OFFICER & DIRECTOR since Oct 2021 | Less than 5% | Individual |
| RIVKIN, CHERYL, OBEDIN Control | CHIEF ADMINISTRATIVE OFFICER & DIRECTOR since Oct 2012 | Less than 5% | Individual |
| TOM, FENTON, CHARLES Control | HEAD OF STRATEGY AND HUMAN CAPITAL & DIRECTOR since May 2018 | Less than 5% | Individual |
| 2008 MUZINICH FAMILY TRUST | SHAREHOLDER since Dec 2008 | 10–25% | Domestic Entity |
| GM TRUST A | SHAREHOLDER since Aug 2021 | 10–25% | Domestic Entity |
| GM TRUST G | SHAREHOLDER since Aug 2021 | 10–25% | Domestic Entity |
| MUZINICH 2011 GST EXEMPT FAMILY TRUST | SHAREHOLDER 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 manager | Individual |
| HALPERIN, ALAN Indirect owner via 2008 MUZINICH FAMILY TRUST | TRUSTEE since May 2017 | General partner, trustee or manager | Individual |
| HALPERIN, ALAN Indirect owner via MUZINICH 2011 GST EXEMPT FAMILY TRUST | TRUSTEE since May 2017 | General partner, trustee or manager | Individual |
| Stanger, Nancy, Michelle Indirect owner via GM TRUST G | TRUSTEE since Jun 2021 | General partner, trustee or manager | Individual |
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.
- 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
- 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
- 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
- ChangedCLARK, MARK, WILLIAM · title CO-CHIEF FINANCIAL OFFICER & DIRECTOR → CO-CHIEF FINANCIAL OFFICER
- ChangedFEHRE, PAUL, FREDERICK · title CHIEF OPERATING OFFICER → CHIEF OPERATING OFFICER & DIRECTOR
- 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
- 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
- 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
- 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
- AddedBAKER, ANNMARIE, THERESA · DIRECTOR · Less than 5% · control person
Older changes (14 more filings)
- AddedTOM, FENTON, CHARLES · HEAD OF STRATEGY AND HUMAN CAPITAL · Less than 5% · control person
- ChangedRIVKIN, CHERYL, OBEDIN · title CHIEF ADMINISTRATIVE OFFICER → CHIEF ADMINISTRATIVE OFFICER & DIRECTOR, COMPLIANCE
- 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
- 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
- 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
- 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
- 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%
- 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
- 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
- ChangedCLARK, MARK · title CHIEF FINANCIAL OFFICER & DIRECTOR → CHIEF FINANCIAL OFFICER
- ChangedMUZINICH, GEORGE, MILAN · title CHIEF EXECUTIVE OFFICER, DIRECTOR & SHAREHOLDER → CHAIRMAN, CHIEF EXECUTIVE OFFICER & SHAREHOLDER
- 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%
- AddedGOLDENBERG, DAVID, MARK · GENERAL COUNSEL AND CHIEF COMPLIANCE OFFICER · Less than 5% · control person
- ChangedRIVKIN, CHERYL, OBEDIN · title CHIEF COMPLIANCE OFFICER → CHIEF ADMINISTRATIVE OFFICER
- 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)
- HERCULES CAPITAL INC$3.1M +14.3%
- MAIN STR CAP CORP$2.3M +9.0%
- ARES CAPITAL CORP$2.1M +5.0%
- SIXTH STREET SPECIALTY LENDI$2.0M +10.7%
- OAKTREE SPECIALTY LENDING CO$1.8M +44.7%
Top Trims
- MIDCAP FINANCIAL INVSTMNT CO-$887.1K -11.8%
- BAIN CAP SPECIALTY FIN INC-$878.3K -8.3%
- SLR INVESTMENT CORP-$412.2K -6.1%
- CRESCENT CAP BDC INC-$270.0K -15.9%
- STELLUS CAP INVT CORP-$197.2K -9.2%
Exited Positions
- INVESCO QQQ TR$368.2K
- EQUINIX INC$209.5K
- DIGITAL RLTY TR INC$209.4K
- IRON MTN INC DEL$197.9K
- SIMON PPTY GROUP INC NEW$188.5K
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 |
| 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 |
18TH FLOOR
NEW YORK, NY 10022