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SGI

Somnigroup International
SGI

426 hedge funds and large institutions have $13.1B invested in Somnigroup International in 2025 Q1 according to their latest regulatory filings, with 83 funds opening new positions, 189 increasing their positions, 105 reducing their positions, and 53 closing their positions.

New
Increased
Maintained
Reduced
Closed

80% more repeat investments, than reductions

Existing positions increased: 189 | Existing positions reduced: 105

79% more funds holding in top 10

Funds holding in top 10: 19 → 34 (+15)

57% more first-time investments, than exits

New positions opened: 83 | Existing positions closed: 53

39% more capital invested

Capital invested by funds: $9.45B → $13.1B (+$3.65B)

21% more call options, than puts

Call options by funds: $36.7M | Put options by funds: $30.4M

8.96% more ownership

Funds ownership: 95.96% → 104.92% (+9%)

7% more funds holding

Funds holding: 399 → 426 (+27)

Holders
426
Holders Change
+27
Holders Change %
+6.77%
% of All Funds
5.71%
Holding in Top 10
34
Holding in Top 10 Change
+15
Holding in Top 10 Change %
+78.95%
% of All Funds
0.46%
New
83
Increased
189
Reduced
105
Closed
53
Calls
$36.7M
Puts
$30.4M
Net Calls
+$6.3M
Net Calls Change
+$16.2M

Top Buyers

1
Fidelity Investments
Fidelity Investments
Massachusetts
+$694M
2
WPL
WINDACRE PARTNERSHIP LLC
Texas
+$630M
3
LP
Linonia Partnership
New York
+$167M
4
Vanguard Group
Vanguard Group
Pennsylvania
+$151M
5
ACM
Abrams Capital Management
Massachusetts
+$136M

Top Sellers

1
Select Equity Group
Select Equity Group
New York
-$221M
2
Millennium Management
Millennium Management
New York
-$44.2M
3
LCOV
London Company of Virginia
Virginia
-$32.4M
4
JCM
Junto Capital Management
New York
-$27.9M
5
Brown Advisory
Brown Advisory
Maryland
-$25.6M
Name Holding Trade Value Shares
Change 		Change in
Stake
BG
51
Baupost Group
Massachusetts
$42.1M +$42.6M +703,349 New
SCM
52
Stonehill Capital Management
New York
$38.9M +$39.3M +650,143 New
Royal Bank of Canada
53
Royal Bank of Canada
Ontario, Canada
$38.5M +$959K +15,852 +3%
Principal Financial Group
54
Principal Financial Group
Iowa
$37.4M +$13.4M +220,870 +55%
ACM
55
Anabranch Capital Management
Connecticut
$33.3M +$9.33M +154,116 +38%
SIM
56
SW Investment Management
Colorado
$32.9M +$3.03M +50,000 +10%
RhumbLine Advisers
57
RhumbLine Advisers
Massachusetts
$31.4M +$1.56M +25,798 +5%
DC
58
Dendur Capital
New York
$30.7M +$31M +512,000 New
RCP
59
RIT Capital Partners
United Kingdom
$30.4M +$30.7M +508,000 New
N
60
Nuveen
North Carolina
$30.2M +$4.26M +70,322 +16%
CC
61
Cartenna Capital
Connecticut
$29.9M +$30.3M +500,000 New
UBS AM
62
UBS AM
Illinois
$29.2M +$2.26M +37,295 +8%
CHP
63
Castle Hook Partners
New York
$28.4M +$28.7M +475,019 New
Envestnet Asset Management
64
Envestnet Asset Management
Illinois
$28.2M +$1.82M +29,991 +7%
Raymond James Financial
65
Raymond James Financial
Florida
$28.2M +$4.4M +72,638 +18%
1SAMC
66
12th Street Asset Management Company
Tennessee
$27.9M +$5.7M +94,239 +25%
MP
67
Mangrove Partners
Connecticut
$27.8M +$10.7M +176,984 +62%
ROC
68
Robertson Opportunity Capital
Texas
$26.3M – – –
Millennium Management
69
Millennium Management
New York
$26.2M -$44.2M -730,337 -63%
MCM
70
Makena Capital Management
California
$24.8M +$9.25M +152,763 +59%
AFM
71
Anson Funds Management
Texas
$22.5M +$22.8M +376,130 New
Verition Fund Management
72
Verition Fund Management
Connecticut
$22.2M -$4.44M -73,302 -17%
Natixis Advisors
73
Natixis Advisors
Massachusetts
$22M +$6.58M +108,655 +42%
RAM
74
Readystate Asset Management
Illinois
$20.4M -$15.6M -257,755 -43%
Qube Research & Technologies (QRT)
75
Qube Research & Technologies (QRT)
United Kingdom
$20.2M -$22.5M -372,538 -52%
1 2
3
4 5

SGI Hedge Fund Activity: Q1 2025 in Review

426 of the 7,457 institutional investors tracked by Wall St. Rank reported a position in Somnigroup International (SGI) for Q1 2025, worth a combined $13.1B — up 39% from $9.45B a quarter earlier.

Buyers outnumbered sellers: 83 funds opened new SGI positions and 53 closed out — a net gain of 30 holders — while 189 added to existing stakes and 105 trimmed.

The largest buyer was Fidelity Investments, adding an estimated $694M. The largest seller was Select Equity Group, cutting an estimated $221M.

  • 426 institutional investors held Somnigroup International (SGI) as of Q1 2025, up from 399 in Q4 2024.
  • Funds reported $13.1B of Somnigroup International stock for Q1 2025, up 39% quarter-over-quarter.
  • 83 funds opened new Somnigroup International positions in Q1 2025 and 53 closed out, a net change of +30 holders.
  • The largest Somnigroup International buyer in Q1 2025 was Fidelity Investments, an estimated $694M added.
  • The largest Somnigroup International seller in Q1 2025 was Select Equity Group, an estimated $221M sold.

Based on aggregated 13F filings for Q1 2025.