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Investors cannot turn a blind eye to insiders as well as institutional ownership. They need to follow insider trades to determine the direction the stock is likely to take.
About 105.19% of SGI shares are held by financial institutions. PRINCIPAL FINANCIAL GROUP INC is the top corporate investor, holding 507.99K shares valued at $45.35M. A 0.24% stake in Somnigroup International Inc is owned by the company. UBS ASSET MANAGEMENT AMERICAS INC owns 488.9K shares valued at $43.65M, which translates its holding of 0.23% of the stake in the company.
| Date | Holder | % Stake | Shares Held | Total Value ($) | Shares | % Change in Portfolio |
|---|---|---|---|---|---|---|
| Dec 31, 2025 | PRINCIPAL FINANCIAL GROUP INC | 0.24% | 507.99K | 45.35M | -34.02K | -6.28% |
| Dec 31, 2025 | UBS ASSET MANAGEMENT AMERICAS INC | 0.23% | 488.9K | 43.65M | 47.2K | +10.69% |
| Dec 31, 2025 | NUVEEN, LLC | 0.23% | 483.2K | 43.14M | 2.09K | +0.43% |
| Dec 31, 2025 | NORGES BANK | 1.45% | 3.03M | 270.81M | 3.03M | +100.00% |
| Dec 31, 2025 | TIMUCUAN ASSET MANAGEMENT INC/FL | 1.43% | 3M | 267.99M | -113.05K | -3.63% |
| Dec 31, 2025 | DARSANA CAPITAL PARTNERS LP | 1.43% | 3M | 267.84M | -1M | -25.00% |
| Dec 31, 2025 | MERITAGE GROUP LP | 1.15% | 2.4M | 214.6M | -632.55K | -20.83% |
| Dec 31, 2025 | BECK MACK & OLIVER LLC | 1.11% | 2.32M | 207.45M | 382 | +0.02% |
| Dec 31, 2025 | PRICE T ROWE ASSOCIATES INC /MD/ | 0.34% | 722.57K | 64.51M | 51.44K | +7.66% |
| Dec 31, 2025 | DRIEHAUS CAPITAL MANAGEMENT LLC | 0.22% | 460.53K | 41.12M | 292.16K | +173.53% |
| Dec 31, 2025 | BANK OF AMERICA CORP /DE/ | 1.2% | 2.53M | 225.54M | -42.57K | -1.66% |
| Dec 31, 2025 | NATIXIS ADVISORS, L.P. | 0.22% | 459.16K | 40.99M | 50.28K | +12.30% |
| Dec 31, 2025 | ROBERTSON OPPORTUNITY CAPITAL, LLC | 0.21% | 439.83K | 39.27M | 0 | 0 |
| Dec 31, 2025 | ABRAMS CAPITAL MANAGEMENT, L.P. | 2.77% | 5.8M | 518.19M | -41.11K | -0.70% |
| Dec 31, 2025 | SQUAREPOINT OPS LLC | 0.59% | 1.23M | 110.01M | 689.72K | +127.15% |
| Dec 31, 2025 | FOREST AVENUE CAPITAL MANAGEMENT LP | 0.33% | 695.57K | 62.1M | -670 | -0.10% |
| Dec 31, 2025 | GOLDMAN SACHS GROUP INC | 0.6% | 1.26M | 112.31M | 16.1K | +1.30% |
| Dec 31, 2025 | VOLORIDGE INVESTMENT MANAGEMENT, LLC | 0.28% | 591.45K | 52.8M | 591.45K | +100.00% |
| Dec 31, 2025 | CLEARBRIDGE INVESTMENTS, LLC | 0.23% | 477.27K | 42.61M | 477.27K | +100.00% |
| Dec 31, 2025 | FMR LLC | 13.92% | 29.22M | 2.61B | -1.86M | -5.99% |
| Dec 31, 2025 | BLACKROCK, INC. | 9.37% | 19.66M | 1.76B | 233.68K | +1.20% |
| Dec 31, 2025 | STATE STREET CORP | 3.22% | 6.75M | 602.57M | -137.53K | -2.00% |
| Dec 31, 2025 | BROWNING WEST LP | 2.74% | 5.75M | 513.12M | -3.35M | -36.83% |
| Dec 31, 2025 | GEODE CAPITAL MANAGEMENT, LLC | 2.08% | 4.38M | 390.7M | 371.23K | +9.27% |
| Dec 31, 2025 | LONDON CO OF VIRGINIA | 1.65% | 3.47M | 310.05M | -315.23K | -8.32% |
| Dec 31, 2025 | JPMORGAN CHASE & CO | 1.63% | 3.43M | 306.16M | 232.95K | +7.29% |
| Dec 31, 2025 | THIRD POINT LLC | 1.62% | 3.4M | 303.55M | 400K | +13.33% |
| Dec 31, 2025 | ARTISAN PARTNERS LIMITED PARTNERSHIP | 1.46% | 3.07M | 274.32M | 3.07M | +100.00% |
| Dec 31, 2025 | WELLINGTON MANAGEMENT GROUP LLP | 0.93% | 1.96M | 174.61M | -71.33K | -3.52% |
| Dec 31, 2025 | ALLSPRING GLOBAL INVESTMENTS HOLDINGS, LLC | 0.89% | 1.87M | 166.37M | 121.24K | +6.91% |
| Dec 31, 2025 | UBS GROUP AG | 0.85% | 1.78M | 158.72M | -745.64K | -29.55% |
| Dec 31, 2025 | NORTHERN TRUST CORP | 0.82% | 1.73M | 154.27M | -36.45K | -2.07% |
| Dec 31, 2025 | VANGUARD GROUP INC | 8.96% | 18.81M | 1.68B | -172.79K | -0.91% |
| Dec 31, 2025 | SELECT EQUITY GROUP, L.P. | 4.97% | 10.43M | 931.1M | -1.28M | -10.95% |
| Dec 31, 2025 | WINDACRE PARTNERSHIP LLC | 4.44% | 9.33M | 832.61M | -48.4K | -0.52% |
| Dec 31, 2025 | LINONIA PARTNERSHIP LP | 4.18% | 8.78M | 783.7M | 2.7K | +0.03% |
| Dec 31, 2025 | AVALA GLOBAL LP | 0.69% | 1.45M | 129.38M | 0 | 0 |
| Dec 31, 2025 | INVESCO LTD. | 0.78% | 1.64M | 146.33M | 205.95K | +14.37% |
| Dec 31, 2025 | BANK OF NEW YORK MELLON CORP | 0.68% | 1.43M | 127.56M | -198.38K | -12.19% |
| Dec 31, 2025 | MAVERICK CAPITAL LTD | 0.54% | 1.14M | 101.94M | -10.51K | -0.91% |
| Dec 31, 2025 | HUDSON WAY CAPITAL MANAGEMENT LLC | 0.53% | 1.11M | 98.79M | -33.49K | -2.94% |
| Dec 31, 2025 | NEUBERGER BERMAN GROUP LLC | 0.44% | 922.29K | 82.39M | -10.8K | -1.16% |
| Dec 31, 2025 | SCULPTOR CAPITAL LP | 0.43% | 900K | 80.35M | -482K | -34.88% |
| Dec 31, 2025 | SEI INVESTMENTS CO | 0.38% | 804.29K | 71.81M | 598.92K | +291.64% |
| Dec 31, 2025 | BOSTON PARTNERS | 1.89% | 3.97M | 354.88M | -1.16M | -22.62% |
| Dec 31, 2025 | DIMENSIONAL FUND ADVISORS LP | 0.97% | 2.03M | 181.04M | -523 | -0.03% |
| Dec 31, 2025 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.66% | 1.37M | 122.75M | 4.24K | +0.31% |
| Dec 31, 2025 | MORGAN STANLEY | 0.56% | 1.18M | 105.24M | 107.9K | +10.08% |
| Dec 31, 2025 | ROYAL BANK OF CANADA | 0.39% | 818.58K | 73.08M | -517.26K | -38.72% |
| Dec 31, 2025 | FRED ALGER MANAGEMENT, LLC | 0.32% | 663.52K | 59.24M | -138.05K | -17.22% |
| Dec 31, 2025 | MARSHALL WACE, LLP | 0.36% | 751.76K | 67.12M | 466.26K | +163.31% |
| Dec 31, 2025 | JANE STREET GROUP, LLC | 0.32% | 663.06K | 59.2M | 652.32K | +6,070.33% |
| Dec 31, 2025 | 140 SUMMER PARTNERS LP | 0.31% | 656.05K | 58.57M | -42.96K | -6.15% |
| Dec 31, 2025 | GOODNOW INVESTMENT GROUP, LLC | 0.3% | 639.9K | 57.13M | -14.94K | -2.28% |
| Dec 31, 2025 | M.D. SASS, INC. | 0.28% | 585.65K | 52.29M | 3.91K | +0.67% |
| Dec 31, 2025 | SW INVESTMENT MANAGEMENT LLC | 0.27% | 575K | 53.34M | 0 | 0 |
| Dec 31, 2025 | RHUMBLINE ADVISERS | 0.26% | 552.77K | 49.35M | -30.9K | -5.29% |
| Dec 31, 2025 | GREENSTONE PARTNERS & CO., LLC | 0.25% | 525.77K | 46.94B | 525.77K | +100.00% |
| Sep 30, 2016 | MAGNETAR FINANCIAL LLC | 4.98% | 1.78M | 13.7M | 1.78M | +100.00% |
| Sep 30, 2016 | GABELLI FUNDS LLC | 4.65% | 1.66M | 12.79M | 1.66M | +100.00% |
| Sep 30, 2016 | AQR CAPITAL MANAGEMENT LLC | 0.38% | 136.36K | 1.05M | 10.63K | +8.45% |
| Sep 30, 2016 | KASSIRER ASSET MANAGEMENT CORP | 0.56% | 199.27K | 1.53M | 199.27K | +100.00% |
| Sep 30, 2016 | CHICAGO EQUITY PARTNERS LLC | 0.25% | 89.22K | 687K | 89.22K | +100.00% |
| Sep 30, 2016 | GAMCO INVESTORS, INC. ET AL | 0.98% | 351.38K | 2.71M | 351.38K | +100.00% |
| Sep 30, 2016 | BLACKROCK FUND ADVISORS | 2.82% | 1.01M | 7.76M | 66.63K | +7.08% |
| Sep 30, 2016 | ROYCE & ASSOCIATES LP | 1.88% | 673.68K | 5.19M | -2.66M | -79.80% |
| Sep 30, 2016 | LONGFELLOW INVESTMENT MANAGEMENT CO LLC | 1.39% | 497.27K | 3.83M | 497.27K | +100.00% |
| Sep 30, 2016 | AIRAIN LTD | 1.13% | 402.94K | 3.1M | 402.94K | +100.00% |
| Sep 30, 2016 | DEUTSCHE BANK AG\ | 0.93% | 331.35K | 2.55M | 319.81K | +2,771.29% |
| Sep 30, 2016 | PARAMETRIC PORTFOLIO ASSOCIATES LLC | 0.85% | 305.02K | 2.35M | -746.81K | -71.00% |
| Sep 30, 2016 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 0.73% | 260K | 2M | 260K | +100.00% |
| Sep 30, 2016 | BANK OF AMERICA CORP /DE/ | 0.71% | 255.02K | 1.97M | -175.31K | -40.74% |
| Sep 30, 2016 | TFS CAPITAL LLC | 0.67% | 239.22K | 1.84M | -126.63K | -34.61% |
| Sep 30, 2016 | UBS GROUP AG | 0.56% | 201.17K | 1.55M | 1.72K | +0.86% |
| Sep 30, 2016 | TETON ADVISORS, INC. | 0.56% | 200K | 1.54M | 200K | +100.00% |
| Sep 30, 2016 | MENTA CAPITAL LLC | 0.49% | 173.75K | 1.34M | 82.69K | +90.82% |
| Sep 30, 2016 | BANK OF NEW YORK MELLON CORP | 0.48% | 172.88K | 1.33M | -8.12K | -4.49% |
| Sep 30, 2016 | HIGHBRIDGE CAPITAL MANAGEMENT LLC | 3.21% | 1.15M | 8.85M | 1.15M | +100.00% |
| Sep 30, 2016 | RENAISSANCE TECHNOLOGIES LLC | 4.85% | 1.73M | 13.36M | 1.22M | +234.94% |
| Sep 30, 2016 | TIG ADVISORS, LLC | 4.35% | 1.55M | 11.97M | 1.55M | +100.00% |
| Sep 30, 2016 | VANGUARD GROUP INC | 4.19% | 1.5M | 11.54M | -327.15K | -17.92% |
| Sep 30, 2016 | AQR ARBITRAGE LLC | 3.73% | 1.33M | 10.27M | 1.33M | +100.00% |
| Sep 30, 2016 | PARADIGM CAPITAL MANAGEMENT INC/NY | 3.54% | 1.26M | 9.74M | -1.6M | -55.82% |
| Sep 30, 2016 | GABELLI & CO INVESTMENT ADVISERS, INC. | 2.82% | 1.01M | 7.76M | 1.01M | +100.00% |
| Sep 30, 2016 | STATE STREET CORP | 1.88% | 670.64K | 5.16M | 80.59K | +13.66% |
| Sep 30, 2016 | OMERS ADMINISTRATION CORP | 1.84% | 656.71K | 5.06M | 656.71K | +100.00% |
| Sep 30, 2016 | HUDSON BAY CAPITAL MANAGEMENT LP | 1.7% | 606K | 4.67M | 606K | +100.00% |
| Sep 30, 2016 | NORTHERN TRUST CORP | 1.13% | 405.02K | 3.12M | 4.25K | +1.06% |
| Sep 30, 2016 | HARVEST MANAGEMENT LLC | 0.78% | 277.5K | 2.14M | 277.5K | +100.00% |
| Sep 30, 2016 | GEODE CAPITAL MANAGEMENT, LLC | 0.73% | 261.97K | 2.02M | 21.84K | +9.10% |
| Sep 30, 2016 | CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM | 0.41% | 146.5K | 1.13M | 18K | +14.01% |
| Sep 30, 2016 | BLACKROCK INVESTMENT MANAGEMENT, LLC | 0.41% | 145.29K | 1.12M | 11.11K | +8.28% |
| Sep 30, 2016 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.4% | 141.47K | 1.09M | 32.87K | +30.27% |
| Sep 30, 2016 | TWO SIGMA INVESTMENTS, LP | 0.36% | 127.24K | 980K | 127.24K | +100.00% |
| Sep 30, 2016 | CORNERSTONE CAPITAL MANAGEMENT HOLDINGS LLC. | 0.29% | 104.1K | 801K | -7.3K | -6.55% |
| Sep 30, 2016 | CREDIT SUISSE AG/ | 0.29% | 102.47K | 789K | 63.76K | +164.73% |
| Sep 30, 2016 | OPPENHEIMERFUNDS, INC. | 0.28% | 100.84K | 776K | 100.84K | +100.00% |
| Sep 30, 2016 | TIAA CREF INVESTMENT MANAGEMENT LLC | 0.27% | 96.47K | 743K | -19.39K | -16.74% |
| Sep 30, 2016 | CREDIT AGRICOLE S A | 0.26% | 94.44K | 728K | 94.44K | +100.00% |
| Sep 30, 2016 | MORGAN STANLEY | 0.24% | 84.5K | 651K | 83.17K | +6,253.16% |
| Sep 30, 2016 | STEVENS CAPITAL MANAGEMENT LP | 0.22% | 79.98K | 616K | 79.98K | +100.00% |
| Sep 30, 2016 | CHARTWELL INVESTMENT PARTNERS, LLC | 3.49% | 1.25M | 9.6M | -78.1K | -5.90% |
| Sep 30, 2016 | CORTINA ASSET MANAGEMENT, LLC | 3.3% | 1.18M | 9.07M | -34.1K | -2.81% |
| Sep 30, 2016 | WATER ISLAND CAPITAL LLC | 2.94% | 1.05M | 8.1M | 1.05M | +100.00% |
| Sep 30, 2016 | BLACKROCK INSTITUTIONAL TRUST COMPANY, N.A. | 2.42% | 866.37K | 6.67M | 13.57K | +1.59% |
| Sep 30, 2016 | BANK OF MONTREAL /CAN/ | 2.01% | 718.79K | 5.54M | -123.23K | -14.63% |
| Sep 30, 2016 | COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | 1.48% | 527.48K | 4.06M | 527.48K | +100.00% |
| Sep 30, 2016 | OXFORD ASSET MANAGEMENT LLP | 0.42% | 151.31K | 1.17M | 151.31K | +100.00% |
Among the SGI insiders holding of 10.41% of the stake in company, MONTGOMERY DAVID, EVP Global Business Strategy, holds the largest shares of 883.84K. RAO BHASKAR, EVP & Chief Financial Officer, is the second largest SGI insider with ownership of 330.48K shares. BUSTER H CLIFFORD III, CEO of Tempur Sealy, stands third with possession of 210.62K shares of that stake.
| Insiders | Designation | Shares Held |
|---|---|---|
| MONTGOMERY DAVID | EVP Global Business Strategy | 883.84K |
| RAO BHASKAR | EVP & Chief Financial Officer | 330.48K |
| BUSTER H CLIFFORD III | CEO of Tempur Sealy | 210.62K |
| DILSAVER EVELYN S | director | 151.58K |
| GATES CATHY R. | director | 38.58K |
| DYER SIMON | director | 34.45K |
| Date | Insider | Type | Cost | Shares | Value ($) | Shares Total |
|---|---|---|---|---|---|---|
| Dec 02, 2025 | DYER SIMON | PURCHASE | 93.34 | 29.65K | 2.77M | 34.45K |
| Sep 05, 2025 | GATES CATHY R. | SALE | 86.85 | 6.02K | 522.48K | 38.58K |
| Aug 19, 2025 | BUSTER H CLIFFORD III | SALE | 81.20 | 70.13K | 5.69M | 210.62K |
| Aug 13, 2025 | RAO BHASKAR | SALE | 79.07 | 203 | 16.05K | 330.48K |
| Jun 11, 2025 | BUSTER H CLIFFORD III | SALE | 65.80 | 22.09K | 1.45M | 286.16K |
| Jun 11, 2025 | MONTGOMERY DAVID | SALE | 65.69 | 30.18K | 1.98M | 883.84K |
| Mar 06, 2025 | DILSAVER EVELYN S | SALE | 60.18 | 1.75K | 105.19K | 151.58K |
| Mar 03, 2025 | MONTGOMERY DAVID | SALE | 62.88 | 32.79K | 2.06M | 875.84K |