Data from public SEC 13F & STOCK Act filings, delayed up to ~45 days, partial holdings only — for research, not investment advice.
SGI
SOMNIGROUP INTERNATIONAL INCData as of 2026 Q1 (03-31) · 13F snapshot
Summary
SOMNIGROUP INTERNATIONAL INC (SGI) is held by 15 tracked hedge-fund managers, a combined reported value of ~$848.35M; the largest are Stephen Mandel, Dan Loeb, Steven Cohen. This quarter: 3 added, 4 trimmed. 12 members of Congress have disclosed STOCK Act trades. Data as of 2026 Q1, from public SEC 13F filings, delayed up to ~45 days.
Attention · HighThis quarter · Mixed
Gurus holding15
Congress trades12
Price$72.25vs quarter-end-2.26%
Sectors0
This quarter's moves
Top holderStephen MandelNew0
Added3
Trimmed / sold4
Stephen MandelNew large stake
Value $206.81M2.0% of portfolio4,771,7722023 Q3
Dan LoebTrim
Value $167.86M8.1% of portfolio2,270,7692026 Q1
Seth KlarmanNew large stake
Value $42.12M1.2% of portfolio703,3492025 Q1
Value $29.57M— of portfolio400,0002026 Q1
Value $5.95M— of portfolio80,5002026 Q1
Value $4.99M0.5% of portfolio69,3002020 Q2
Value $3.52M— of portfolio39,4002025 Q4
Value $613.5K— of portfolio8,3002026 Q1
Value $455.3K— of portfolio5,1002025 Q4
Value $396.8K— of portfolio7,0002024 Q4
| Investor | Value | % of portfolio | Action |
|---|---|---|---|
| Stephen Mandel | $206.81M | 2.0% | New large stake |
| Dan Loeb | $167.86M | 8.1% | Trim |
| Seth Klarman | $42.12M | 1.2% | New large stake |
| Izzy EnglanderCALL | $29.57M | — | — |
| Ken GriffinCALL | $5.95M | — | — |
| David Einhorn | $4.99M | 0.5% | New |
| Steven CohenCALL | $3.52M | — | — |
| Ken GriffinPUT | $613.5K | — | — |
| Steven CohenPUT | $455.3K | — | — |
| Izzy EnglanderPUT | $396.8K | — | — |