NASDAQ : IOSP
-$0.3 (-0.36%)
1.95%
26
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0.00
change: 0 | last: 039.36M
| Filing Date | Reporting Person | Amount Beneficially Owned | % of Class |
|---|---|---|---|
| 2026-07-14 | Dimensional Fund Advisors LP | 1.31M | 5.30% |
| 2026-04-30 | Vanguard Capital Management | 1.3M | 5.22% |
| 2026-04-29 | Vanguard Portfolio Management | 1.87M | 7.51% |
| 2026-03-27 | The Vanguard Group | - | 0.00% |
| 2025-05-13 | WASATCH ADVISORS LP | 528.14K | 2.10% |
| 2025-04-30 | BlackRock, Inc. | 3.68M | 14.70% |
| 2025-02-12 | WASATCH ADVISORS LP | 1.58M | 6.30% |
| 2023-02-08 | Wasatch Advisors LP 87-0319391 | 1.77M | 7.20% |
| 2022-02-10 | The Vanguard Group - 23-1945930 | 2.72M | 11.02% |
| 2022-02-08 | Allspring Global Investments Holdings, LLC | 2.56M | 10.40% |
| 2022-02-08 | 30-0447847 | 1.16M | 4.70% |
| 2022-01-27 | (1) BlackRock, Inc. | 4.27M | 17.30% |
| 2022-01-26 | (1) BlackRock, Inc. | 4.27M | 17.30% |
| 2022-01-21 | 52-2343049 | 1.35M | 5.48% |
| 2022-01-18 | Allspring Global Investments Holdings, LLC | 2.1M | 9.88% |
| 2022-01-18 | Allspring Funds Management, LLC | 1.91M | 7.73% |
| 2022-01-18 | Allspring Global Investments, LLC | 2.1M | 9.85% |
| 2021-11-10 | Wells Capital Management Incorporated | 2.39M | 9.72% |
| 2021-11-10 | Wells Fargo Funds Management, LLC | 1.87M | 7.60% |
| 2021-11-10 | Wells Fargo & Company | 2.51M | 10.20% |
| 2021-02-12 | 30-0447847 | 1.24M | 5.00% |
| 2021-02-11 | Wells Fargo & Company | 2.11M | 8.57% |
| 2021-02-10 | The Vanguard Group - 23-1945930 | 2.53M | 10.29% |
| 2021-01-25 | (1) BlackRock, Inc. | 3.84M | 15.60% |
| 2020-02-07 | Abigail P. Johnson | 2.87M | 11.72% |
| 2020-02-07 | FMR LLC | 2.87M | 11.72% |
| 2020-02-04 | (1) BlackRock, Inc. | 3.81M | 15.60% |
| 2020-02-04 | Wells Fargo & Company | 1.3M | 5.30% |
| 2019-02-13 | FMR LLC | 3.66M | 14.99% |
| 2019-01-28 | (1) BlackRock, Inc. | 3.99M | 16.40% |
| 2018-07-10 | BlackRock, Inc. | 11.73M | 6.20% |
| 2018-02-13 | FMR LLC | 2.67M | 11.08% |
| 2018-02-13 | Abigail P. Johnson | 2.67M | 11.08% |
| 2018-01-19 | (1) BlackRock, Inc. | 3.46M | 14.30% |
| 2017-02-14 | FMR LLC | 2.74M | 11.42% |
| 2017-02-07 | 52-0556948 | 884.92K | 3.60% |
| 2016-02-11 | Wellington Management Group LLP | 46912.0 | 0.19% |
| 2016-02-11 | Wellington Investment Advisors Holdings LLP | 46912.0 | 0.19% |
| 2016-02-11 | Wellington Group Holdings LLP | 46912.0 | 0.19% |
| 2016-02-03 | 52-2343049 | 622.19K | 2.58% |
| 2015-10-13 | James J. Cotter, Jr. | 2.76M | 12.80% |
| 2015-05-05 | 52-2343049 | 1.79M | 7.36% |
| 2015-02-12 | 20-8441410 | 1.45M | 5.95% |
| 2015-02-03 | (1) BlackRock, Inc. | 1.24M | 5.10% |
| 2015-01-09 | 52-2343049 | 3.05M | 12.48% |
| 2015-01-12 | FMR LLC | 1.53M | 6.26% |
| 2015-01-12 | Edward C. Johnson 3d | 1.53M | 6.26% |
| 2015-01-12 | Abigail P. Johnson | 1.53M | 6.26% |
| 2014-02-14 | 04-2683227 | 1.54M | 6.48% |
| 2014-02-14 | FMR LLC | 2.73M | 11.51% |
| 2014-02-11 | Vanguard Group - 23-1945930 | 1.25M | 5.26% |
| 2014-02-10 | 20-8441410 | 1.19M | 5.01% |
| 2014-02-10 | Candlewood Investment Group, LP | 10.1M | 25.90% |
| 2013-09-05 | 52-2343049 | 2.4M | 10.20% |
| 2013-02-14 | FMR LLC | 3.01M | 12.92% |
| 2013-02-14 | 04-2683227 | 1.81M | 7.79% |
| 2013-02-14 | Edward C. Johnson 3d | 3.01M | 12.92% |
| 2013-02-08 | Tontine Capital Management, L.L.C. | 57770.0 | 0.25% |
| 2013-02-08 | Tontine Associates, L.L.C. | - | 0.00% |
| 2013-02-08 | Tontine Asset Associates, LLC | 424.98K | 1.83% |
| 2013-02-08 | TTR Management, LLC | - | 0.00% |
| 2013-02-08 | Jeffrey L. Gendell | 495.08K | 2.13% |
| 2013-02-08 | Tontine Capital Partners, L.P. | - | 0.00% |
| 2013-02-08 | Tontine Overseas Associates, L.L.C. | - | 0.00% |
| 2013-01-11 | 52-2343049 | 1.27M | 5.47% |
| 2012-02-14 | FMR LLC | 1.53M | 6.61% |
| 2012-02-14 | Edward C. Johnson 3d | 1.53M | 6.61% |
| 2012-02-10 | Tontine Overseas Associates, L.L.C. | 28800.0 | 0.12% |
| 2012-01-13 | 52-2343049 | 1.21M | 5.22% |
| 2011-06-17 | Franklin Resources, Inc. | 1.42M | 6.20% |
| 2009-02-17 | FMR LLC | 2.03M | 8.60% |
| 2009-02-17 | Edward C. Johnson 3d | 2.03M | 8.60% |
| 2008-11-10 | Tontine 25 Overseas Master Fund, L.P. | 99700.0 | 0.40% |
| 2008-11-10 | Jeffrey L. Gendell | 4.83M | 20.50% |
| 2008-11-10 | Tontine Capital Overseas Master Fund, L.P. | 525.98K | 2.20% |
| 2008-11-10 | Tontine Capital Management, L.L.C. | 4.3M | 18.20% |
| 2008-11-10 | Tontine Capital Overseas GP, L.L.C. | 525.98K | 2.20% |
| 2008-11-10 | Tontine Capital Partners, L.P. | 4.2M | 17.80% |
| 2008-02-14 | FMR LLC | 3.15M | 13.19% |
| 2008-02-14 | Edward C. Johnson 3d | 3.15M | 13.19% |
| 2007-02-14 | Edward C. Johnson 3d | 1.36M | 11.51% |
| 2007-02-14 | FMR Corp. | 1.36M | 11.51% |
| 2007-02-13 | Prospector Partners, L.L.C. | 563.2K | 4.80% |
| 2006-02-14 | 52-0556948 | 1.79M | 14.40% |
| 2006-02-14 | (52-1465786) | 990K | 7.90% |
| 2006-02-14 | Prospector Partners, L.L.C. | 1.3M | 10.50% |
| 2005-02-14 | (52-1465786) | 990K | 7.90% |
| 2005-02-14 | 52-0556948 | 1.79M | 14.40% |
| 2005-02-14 | Abigail P. Johnson | 1.38M | 11.14% |
| 2005-02-14 | FMR Corp. | 1.38M | 11.14% |
| 2005-02-14 | Edward C. Johnson 3d | 1.38M | 11.14% |
| 2004-02-10 | (52-1465786) | 990K | 8.20% |
| 2004-02-10 | 52-0556948 | 1.87M | 15.60% |
| 2003-02-06 | (52-1465786) | 990K | 8.30% |
| 2003-02-06 | 52-0556948 | 1.88M | 15.80% |
| 2002-02-14 | Seth A. Klarman, ###-##-#### | - | 0.00% |
| 2002-02-14 | SAK Corporation, 04-3334541 | - | 0.00% |
| 2002-02-14 | The Baupost Group, L.L.C., 04-3402144 | 1.76M | 14.88% |
| 2002-02-12 | 52-0556948 | 1.9M | 16.20% |
| 2002-02-12 | (52-1465786) | 990K | 8.40% |
| 2001-02-14 | Edward C. Johnson 3d | 1.47M | 12.30% |
| 2001-02-14 | FMR Corp. | 1.47M | 12.30% |
| 2001-02-14 | Abigail P. Johnson | 1.47M | 12.30% |
| 2001-02-09 | (52-1465786) | 940K | 7.80% |
| 2001-02-09 | 52-0556948 | 1.9M | 15.90% |
| 2000-02-14 | Abigail P. Johnson | 1.47M | 10.79% |
| 2000-02-14 | FMR Corp. | 1.47M | 10.79% |
| 2000-02-14 | Edward C. Johnson 3d | 1.47M | 10.79% |
| 2000-02-07 | (52-1465786) | 835K | 6.10% |
| 2000-02-07 | 52-0556948 | 1.79M | 13.10% |
| 1999-06-10 | SAK Corporation, 04-3334541 | - | 0.00% |
| 1999-06-10 | The Baupost Group, L.L.C., 04-3402144 | 2.13M | 15.28% |
| 1999-06-10 | Seth A. Klarman, ###-##-#### | - | 0.00% |
| 1999-02-18 | Abigail P. Johnson | 1.9M | 13.52% |
| 1999-02-18 | Edward C. Johnson 3d | 1.9M | 13.52% |
| 1999-02-18 | FMR Corp. | 1.9M | 13.52% |
| 1999-02-10 | (52-1465786) | 765K | 5.40% |
| 1999-02-10 | 52-0556948 | 1.73M | 12.30% |
| 1998-08-10 | Abigail P. Johnson | 1.92M | 13.00% |
| 1998-08-10 | Edward C. Johnson 3d | 1.92M | 13.00% |
| 1998-08-10 | FMR Corp. | 1.92M | 13.00% |
| 1998-06-09 | 52-0556948 | 1.48M | 10.20% |
| Date | Stock Price | Shares Outstanding | Market Cap | Cash & Equivalents | Total Debt | Enterprise Value |
|---|---|---|---|---|---|---|
| 2025-12-31 | $76.54 | 24.88M | $1.9B | $292.5M | $52.7M | $1.66B |
| 2024-12-31 | $110.06 | 24.93M | $2.74B | $289.2M | $44.9M | $2.5B |
| 2023-12-31 | $123.24 | 24.85M | $3.06B | $203.7M | $45.2M | $2.9B |
| 2022-12-31 | $102.86 | 24.79M | $2.55B | $147.1M | $45.3M | $2.45B |
| 2021-12-31 | $90.34 | 24.65M | $2.23B | $141.8M | $35.6M | $2.12B |
| 2020-12-31 | $90.73 | 24.56M | $2.23B | $105.3M | $40.8M | $2.16B |
| 2019-12-31 | $103.44 | 24.48M | $2.53B | $75.7M | $92.6M | $2.55B |
| 2018-12-31 | $61.76 | 24.4M | $1.51B | $123.1M | $210.9M | $1.59B |
| 2017-12-31 | $70.60 | 24.15M | $1.7B | $90.2M | $224.3M | $1.84B |
| 2016-12-31 | $68.50 | 24M | $1.64B | $101.9M | $273.3M | $1.82B |
| Date | Stock Price | Shares Outstanding | Market Cap | Cash & Equivalents | Total Debt | Enterprise Value |
|---|---|---|---|---|---|---|
| 2026-03-31 | $73.02 | 24.78M | $1.81B | $289.1M | $50.6M | $1.57B |
| 2025-12-31 | $76.54 | 24.78M | $1.9B | $292.5M | $52.7M | $1.66B |
| 2025-09-30 | $77.16 | 24.83M | $1.92B | $270.8M | $49M | $1.69B |
| 2025-06-30 | $84.09 | 24.94M | $2.1B | $266.6M | $49.3M | $1.88B |
| 2025-03-31 | $94.75 | 24.97M | $2.37B | $299.8M | $44.4M | $2.11B |
| 2024-12-31 | $110.06 | 24.95M | $2.75B | $289.2M | $44.9M | $2.5B |
| 2024-09-30 | $113.09 | 24.94M | $2.82B | $303.8M | $45.7M | $2.56B |
| 2024-06-30 | $121.43 | 24.94M | $3.03B | $240.2M | $48.1M | $2.84B |
| 2024-03-31 | $126.35 | 24.89M | $3.15B | $270.1M | $43.6M | $2.92B |
| 2023-12-31 | $123.24 | 24.87M | $3.07B | $203.7M | $45.2M | $2.91B |
| 2023-09-30 | $102.20 | 24.87M | $2.54B | $207.2M | $42.5M | $2.38B |
| 2023-06-30 | $100.44 | 24.87M | $2.5B | $165.9M | $45.9M | $2.38B |