Siguler Guff Advisers, LLC — 13F Holdings & Portfolio
CIK 1328551 · latest 13F-HR filed 2025-10-15
Siguler Guff Advisers, LLC manages $56.1M in 13F-reported U.S. long-equity assets across 2 reported positions as of its 2025-09-30 13F-HR filing. Its largest disclosed positions are SEMR (91.75%), SVC (8.25%). Quarter over quarter (versus its 2025-06-30 filing) the fund opened 0 new positions and exited 0; 1 existing position rose in reported value and 1 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 2025-10-15
vs 2025-06-30
Portfolio charts
Latest quarter's book, what changed, and how the portfolio has evolved across filings.
Portfolio map
Q3 25Box 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 25 → Q3 25Estimated 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
2 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 = 100%Cumulative share of the portfolio held in the largest N positions.
As of the firm’s regulatory filing dated Mar 25, 2026.
14TH FLOOR
NEW YORK, NY 10166
| Name | Title / Status | Ownership | Type |
|---|---|---|---|
| BURNS, KENNETH, JAMES Control | CO-MANAGING PARTNER AND CHIEF OPERATING OFFICER; PARTNER OF HOLDING COMPANY AND ITS GENERAL PARTNER since Mar 2000 | Less than 5% | Individual |
| GUFF, ANDREW, JOSEPH Control | CO-MANAGING PARTNER AND CHIEF INVESTMENT OFFICER; PARTNER OF HOLDING COMPANY AND ITS GENERAL PARTNER since Dec 1995 | Less than 5% | Individual |
| SIGULER GUFF & COMPANY, LP Control | OWNER since Dec 1995 | 75% or more | Domestic Entity |
| SIGULER, GEORGE, WILLIAM Control | EXECUTIVE CHAIRMAN; PARTNER OF HOLDING COMPANY AND ITS GENERAL PARTNER since Dec 1995 | Less than 5% | Individual |
| PHILLIPS, MARCELO, ALAN | MANAGING DIRECTOR, CHIEF COMPLIANCE OFFICER since Mar 2021 | Less than 5% | Individual |
| BURNS, KENNETH, JAMES Control Indirect owner via SIGULER GUFF HOLDINGS GP, LLC | VOTING INTEREST HOLDER since Oct 2009 | General partner, trustee or manager | Individual |
| BURNS, KENNETH, JAMES Control Indirect owner via SIGULER GUFF & COMPANY, LP | PARTNER since Oct 2009 | General partner, trustee or manager | Individual |
| GUFF, ANDREW, JOSEPH Control Indirect owner via SIGULER GUFF HOLDINGS GP, LLC | VOTING INTEREST HOLDER since Oct 2009 | 25–50% | Individual |
| GUFF, ANDREW, JOSEPH Control Indirect owner via SIGULER GUFF & COMPANY, LP | PARTNER since Oct 2009 | 25–50% | Individual |
| SIGULER GUFF HOLDINGS GP, LLC Control Indirect owner via SIGULER GUFF & COMPANY, LP | GENERAL PARTNER since Oct 2009 | General partner, trustee or manager | Domestic Entity |
| SIGULER, GEORGE, WILLIAM Control Indirect owner via SIGULER GUFF HOLDINGS GP, LLC | VOTING INTEREST MEMBER since Oct 2009 | 25–50% | Individual |
| SIGULER, GEORGE, WILLIAM Control Indirect owner via SIGULER GUFF & COMPANY, LP | PARTNER since Oct 2009 | 25–50% | Individual |
Ownership & leadership changes · 12 filings with changes since Nov 16, 2011
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.
- ChangedPHILLIPS, MARCELO, ALAN · title CHIEF COMPLIANCE OFFICER → MANAGING DIRECTOR, CHIEF COMPLIANCE OFFICER
- ChangedPHILLIPS, MARCELO, ALAN · title PRINCIPAL AND CHIEF COMPLIANCE OFFICER → CHIEF COMPLIANCE OFFICER
- No longer listedSPENCER, DONALD, PAUL · MANAGING DIRECTOR; SENIOR ADVISOR; PARTNER OF HOLDING COMPANY AND ITS GENERAL PARTNER · Less than 5% · control person · listed since Dec 1995
- No longer listedSPENCER, DONALD, PAUL · VOTING INTEREST HOLDER · General partner, trustee or manager · indirect via SIGULER GUFF HOLDINGS GP, LLC · control person · listed since Oct 2009
- No longer listedSPENCER, DONALD, PAUL · PARTNER · General partner, trustee or manager · indirect via SIGULER GUFF & COMPANY, LP · control person · listed since Oct 2009
- ChangedBURNS, KENNETH, JAMES · title MANAGING DIRECTOR; CHIEF OPERATING OFFICER; PARTNER OF HOLDING COMPANY AND ITS GENERAL PARTNER → CO-MANAGING PARTNER AND CHIEF OPERATING OFFICER; PARTNER OF HOLDING COMPANY AND ITS GENERAL PARTNER
- ChangedGUFF, ANDREW, JOSEPH · title MANAGING DIRECTOR; PARTNER OF HOLDING COMPANY AND ITS GENERAL PARTNER → CO-MANAGING PARTNER AND CHIEF INVESTMENT OFFICER; PARTNER OF HOLDING COMPANY AND ITS GENERAL PARTNER
- ChangedPHILLIPS, MARCELO, ALAN · title CHIEF COMPLIANCE OFFICER → PRINCIPAL AND CHIEF COMPLIANCE OFFICER
- ChangedSIGULER, GEORGE, WILLIAM · title MANAGING DIRECTOR; PARTNER OF HOLDING COMPANY AND ITS GENERAL PARTNER → EXECUTIVE CHAIRMAN; PARTNER OF HOLDING COMPANY AND ITS GENERAL PARTNER
- No longer listedWHITCOMB, DANIEL, JOSEPH · CHIEF COMPLIANCE OFFICER · Less than 5% · listed since Mar 2015
- AddedPHILLIPS, MARCELO, ALAN · CHIEF COMPLIANCE OFFICER · Less than 5%
- ChangedSPENCER, DONALD, PAUL · title MANAGING DIRECTOR; SENIOR COUNSEL; PARTNER OF HOLDING COMPANY AND ITS GENERAL PARTNER → MANAGING DIRECTOR; SENIOR ADVISOR; PARTNER OF HOLDING COMPANY AND ITS GENERAL PARTNER
- ChangedSPENCER, DONALD, PAUL · title MANAGING DIRECTOR; PARTNER OF HOLDING COMPANY AND ITS GENERAL PARTNER → MANAGING DIRECTOR; SENIOR COUNSEL; PARTNER OF HOLDING COMPANY AND ITS GENERAL PARTNER
- No longer listedRUGGERI, MICHAEL, JOHN · CHIEF FINANCIAL OFFICER · Less than 5% · listed since Jan 2014
- No longer listedKOH, JAY, LEE · MANAGING DIRECTOR; PARTNER OF HOLDING COMPANY AND ITS GENERAL PARTNER · Less than 5% · control person · listed since Dec 2012
- No longer listedKOH, JAY, LEE · PARTNER · General partner, trustee or manager · indirect via SIGULER GUFF & COMPANY, LP · control person · listed since Jan 2014
- No longer listedKOH, JAY, LEE · EQUITY INTEREST OWNER · General partner, trustee or manager · indirect via SIGULER GUFF HOLDINGS GP, LLC · control person · listed since Jan 2014
- No longer listedLIFTIN, TERRI, AMBRON · CHIEF COMPLIANCE OFFICER · Less than 5% · listed since Jul 2011
- AddedWHITCOMB, DANIEL, JOSEPH · CHIEF COMPLIANCE OFFICER · Less than 5%
- AddedKOH, JAY, LEE · PARTNER · General partner, trustee or manager · indirect via SIGULER GUFF & COMPANY, LP · control person
- AddedKOH, JAY, LEE · EQUITY INTEREST OWNER · General partner, trustee or manager · indirect via SIGULER GUFF HOLDINGS GP, LLC · control person
- AddedRUGGERI, MICHAEL, JOHN · CHIEF FINANCIAL OFFICER · Less than 5%
- ChangedKOH, JAY, LEE · title PARTNER → MANAGING DIRECTOR; PARTNER OF HOLDING COMPANY AND ITS GENERAL PARTNER; now a control person
- No longer listedDUBINSKY, DAVID · CHIEF FINANCIAL OFFICER · Less than 5% · control person · listed since Jan 2008
Older changes (3 more filings)
- AddedKOH, JAY, LEE · PARTNER · Less than 5%
- AddedDUBINSKY, DAVID · CHIEF FINANCIAL OFFICER · Less than 5% · control person
- ListedBURNS, KENNETH, JAMES · MANAGING DIRECTOR; CHIEF OPERATING OFFICER; PARTNER OF HOLDING COMPANY AND ITS GENERAL PARTNER · Less than 5% · control person
- ListedBURNS, KENNETH, JAMES · VOTING INTEREST HOLDER · General partner, trustee or manager · indirect via SIGULER GUFF HOLDINGS GP, LLC · control person
- ListedBURNS, KENNETH, JAMES · PARTNER · General partner, trustee or manager · indirect via SIGULER GUFF & COMPANY, LP · control person
- ListedGUFF, ANDREW, JOSEPH · MANAGING DIRECTOR; PARTNER OF HOLDING COMPANY AND ITS GENERAL PARTNER · Less than 5% · control person
- ListedGUFF, ANDREW, JOSEPH · VOTING INTEREST HOLDER · 25–50% · indirect via SIGULER GUFF HOLDINGS GP, LLC · control person
- ListedGUFF, ANDREW, JOSEPH · PARTNER · 25–50% · indirect via SIGULER GUFF & COMPANY, LP · control person
- ListedLIFTIN, TERRI, AMBRON · CHIEF COMPLIANCE OFFICER · Less than 5%
- ListedSIGULER GUFF & COMPANY, LP · OWNER · 75% or more · control person
- ListedSIGULER GUFF HOLDINGS GP, LLC · GENERAL PARTNER · General partner, trustee or manager · indirect via SIGULER GUFF & COMPANY, LP · control person
- ListedSIGULER, GEORGE, WILLIAM · MANAGING DIRECTOR; PARTNER OF HOLDING COMPANY AND ITS GENERAL PARTNER · Less than 5% · control person
- ListedSIGULER, GEORGE, WILLIAM · VOTING INTEREST MEMBER · 25–50% · indirect via SIGULER GUFF HOLDINGS GP, LLC · control person
- ListedSIGULER, GEORGE, WILLIAM · PARTNER · 25–50% · indirect via SIGULER GUFF & COMPANY, LP · control person
- ListedSPENCER, DONALD, PAUL · MANAGING DIRECTOR; PARTNER OF HOLDING COMPANY AND ITS GENERAL PARTNER · Less than 5% · control person
- ListedSPENCER, DONALD, PAUL · VOTING INTEREST HOLDER · General partner, trustee or manager · indirect via SIGULER GUFF HOLDINGS GP, LLC · control person
- ListedSPENCER, DONALD, PAUL · PARTNER · General partner, trustee or manager · indirect via SIGULER GUFF & COMPANY, LP · 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.
Siguler Guff Advisers, LLC Holdings (2025-09-30)
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).
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2025-09-30 | 2025-10-15 | $56.1M | 2 | 0000904454-25-000486 |
| 2025-06-30 | 2025-07-29 | $69.9M | 2 | 0000904454-25-000389 |