NYSE : WST
-$2.93 (-0.82%)
2.22%
166
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change: 477 | last: 139-
2300
0.00
change: -229.1859 | last: 2.2919560.59M
| Filing Date | Reporting Person | Amount Beneficially Owned | % of Class |
|---|---|---|---|
| 2026-04-30 | Vanguard Capital Management | 5.4M | 7.48% |
| 2026-04-29 | Vanguard Portfolio Management | 4.1M | 5.69% |
| 2026-03-27 | The Vanguard Group | - | 0.00% |
| 2025-10-31 | The Vanguard Group | 9.7M | 13.49% |
| 2025-04-24 | BlackRock, Inc. | 6.07M | 8.40% |
| 2022-02-14 | 52-0556948 | 6.24M | 8.40% |
| 2022-02-10 | The Vanguard Group - 23-1945930 | 8.63M | 11.65% |
| 2022-01-27 | (1) BlackRock, Inc. | 8.09M | 10.90% |
| 2022-01-25 | (1) BlackRock, Inc. | 8.09M | 10.90% |
| 2021-04-12 | (1) BlackRock, Inc. | 7.47M | 10.10% |
| 2021-02-16 | 52-0556948 | 4.62M | 6.20% |
| 2021-02-10 | The Vanguard Group - 23-1945930 | 8.29M | 11.21% |
| 2021-02-01 | (1) BlackRock, Inc. | 7.29M | 9.90% |
| 2020-02-14 | 52-0556948 | 6.83M | 9.20% |
| 2020-02-12 | The Vanguard Group - 23-1945930 | 7.5M | 10.13% |
| 2020-02-04 | (1) BlackRock, Inc. | 8.16M | 11.00% |
| 2019-05-10 | The Vanguard Group - 23-1945930 | 7.39M | 10.01% |
| 2019-02-14 | 52-0556948 | 8.99M | 12.10% |
| 2019-02-06 | (1) BlackRock, Inc. | 6.94M | 9.40% |
| 2019-01-28 | Franklin Resources, Inc. | 4.8M | 6.50% |
| 2018-02-14 | 52-0556948 | 9.31M | 12.50% |
| 2018-02-15 | Neuberger Berman Investment Advisers LLC | 3.41M | 4.59% |
| 2018-02-15 | Neuberger Berman Group LLC | 3.41M | 4.59% |
| 2018-01-23 | (1) BlackRock, Inc. | 6.23M | 8.40% |
| 2017-02-14 | Neuberger Berman Group LLC | 3.99M | 5.45% |
| 2017-02-14 | Neuberger Berman Investment Advisers LLC | 3.99M | 5.45% |
| 2017-01-27 | (1) BlackRock, Inc. | 5.42M | 7.40% |
| 2016-02-09 | Neuberger Berman Group LLC | 4.8M | 6.65% |
| 2016-02-09 | Neuberger Berman Investment Advisers LLC | 4.8M | 6.65% |
| 2016-01-27 | (1) BlackRock, Inc. | 6.16M | 8.60% |
| 2015-02-12 | Neuberger Berman Management LLC | 4.82M | 6.79% |
| 2015-02-12 | Neuberger Berman Group LLC | 5.61M | 7.90% |
| 2015-02-12 | Neuberger Berman Equity Funds | 4.29M | 6.04% |
| 2015-02-12 | Neuberger Berman LLC | 5.61M | 7.90% |
| 2015-01-22 | (1) BlackRock, Inc. | 6.05M | 8.50% |
| 2014-02-13 | Neuberger Berman Group LLC | 5.44M | 7.80% |
| 2014-01-31 | (1) BlackRock, Inc. | 6.05M | 8.70% |
| 2013-02-14 | NFJ INVESTMENT GROUP LLC | - | 0.00% |
| 2013-02-14 | Neuberger Berman Group LLC | 2.62M | 7.68% |
| 2013-02-14 | Neuberger Berman LLC | 2.62M | 7.68% |
| 2013-02-14 | Neuberger Berman Management LLC | 2.23M | 6.53% |
| 2013-02-14 | Neuberger Berman Equity Funds | 1.94M | 5.68% |
| 2013-02-14 | ALLIANZ GLOBAL INVESTORS U.S. HOLDINGS LLC | 4200.0 | 0.00% |
| 2013-02-08 | (1) BlackRock, Inc. | 2.54M | 7.44% |
| 2012-02-14 | Neuberger Berman Group LLC | 2.26M | 6.69% |
| 2012-02-13 | ALLIANZ GLOBAL INVESTORS CAPITAL LLC | 1.74M | 5.20% |
| 2012-02-13 | NFJ INVESTMENT GROUP LLC | 1.74M | 5.20% |
| 2012-02-10 | (1) BlackRock, Inc. | 2.47M | 7.34% |
| 2011-02-14 | Munder Capital Management | - | 0.00% |
| 2011-02-14 | ALLIANZ GLOBAL INVESTORS CAPITAL LLC | 1.71M | 5.10% |
| 2011-02-14 | Neuberger Berman LLC | 1.76M | 5.28% |
| 2011-02-14 | Neuberger Berman Group LLC | 1.76M | 5.28% |
| 2011-02-14 | NFJ INVESTMENT GROUP LLC | 1.71M | 5.10% |
| 2011-02-09 | (1) BlackRock, Inc. | 2.44M | 7.33% |
| 2010-02-12 | LLC | 1.7M | 5.10% |
| 2010-02-12 | OPPENHEIMER CAPITAL LLC | 1.7M | 5.10% |
| 2010-02-12 | NICHOLAS-APPLEGATE CAPITAL MANAGEMENT LLC | 1.7M | 5.10% |
| 2010-02-12 | NFJ INVESTMENT GROUP LLC | 1.7M | 5.10% |
| 2010-02-11 | Munder Capital Management | 1.89M | 5.70% |
| 2010-01-29 | BlackRock for purposes of Schedule 13G filings. | 2.41M | 7.30% |
| 2009-02-12 | Munder Capital Management | 2.21M | 6.70% |
| 2006-02-15 | fiduciary 51-0055023 | 2.27M | 7.20% |
| 2006-02-15 | Wilmington Trust Corporation, 51-0328154 | 2.28M | 7.20% |
| 2006-02-15 | Wilmington Trust FSB, solely in its fiduciary capacity 52-1877389 | 9796.0 | 0.00% |
| 2005-02-16 | (Formerly named First Union Corporation) | 646.38K | 4.61% |
| 2005-02-14 | Franklin Resources, Inc. (13-2670991) | 3.37M | 11.00% |
| 2005-01-27 | (Formerly named First Union Corporation) | 646.38K | 0.02% |
| 2004-02-11 | (Formerly named First Union Corporation) | 1.06M | 7.28% |
| 2004-02-09 | Franklin Resources, Inc. (13-2670991) | 1.66M | 11.40% |
| 2004-02-05 | Wilmington Trust Corporation | 889.92K | 6.10% |
| 2004-02-05 | Wilmington Trust Company | 885.02K | 6.10% |
| 2004-02-05 | Wilmington Trust FSB | 4898.0 | 0.00% |
| 2003-02-13 | (Formerly named First Union Corporation) | 1.13M | 0.08% |
| 2003-02-12 | Franklin Resources, Inc. | 1.64M | 11.30% |
| 2003-02-10 | Wilmington Trust FSB | 8438.0 | 0.10% |
| 2003-02-10 | Wilmington Trust Company | 903.62K | 6.20% |
| 2003-02-10 | Wilmington Trust Corporation | 912.06K | 6.30% |
| 2002-08-09 | Franklin Resources, Inc. | 1.48M | 10.30% |
| 2002-04-24 | Robert B. Arthur | 1.31M | 9.10% |
| 2002-02-14 | Franklin Resources, Inc. | 1.24M | 8.60% |
| 2001-02-14 | Lazard Freres & Co. LLC | - | 0.00% |
| 2001-02-09 | Franklin Resources, Inc. | 1.27M | 8.90% |
| 2000-06-09 | Franklin Resources, Inc. | 1.46M | 10.10% |
| 1998-12-08 | Franklin Resources, Inc. | 1.52M | 10.20% |
| Date | Stock Price | Shares Outstanding | Market Cap | Cash & Equivalents | Total Debt | Enterprise Value |
|---|---|---|---|---|---|---|
| 2025-12-31 | $275.14 | 72.3M | $19.89B | $791.3M | $416.7M | $19.52B |
| 2024-12-31 | $327.56 | 73M | $23.91B | $484.6M | $305.3M | $23.73B |
| 2023-12-31 | $352.12 | 74.3M | $26.16B | $853.9M | $309M | $25.62B |
| 2022-12-31 | $235.35 | 74.4M | $17.51B | $894.3M | $317.9M | $16.93B |
| 2021-12-31 | $469.01 | 74.4M | $34.89B | $762.6M | $325.3M | $34.46B |
| 2020-12-31 | $283.31 | 73.9M | $20.94B | $615.5M | $325.7M | $20.65B |
| 2019-12-31 | $150.33 | 74M | $11.12B | $439.1M | $329.3M | $11.01B |
| 2018-12-31 | $98.03 | 73.9M | $7.24B | $337.4M | $196.1M | $7.1B |
| 2017-12-31 | $98.67 | 73.9M | $7.29B | $235.9M | $197M | $7.25B |
| 2016-12-31 | $84.83 | 73.3M | $6.22B | $203M | $228.6M | $6.24B |
| Date | Stock Price | Shares Outstanding | Market Cap | Cash & Equivalents | Total Debt | Enterprise Value |
|---|---|---|---|---|---|---|
| 2026-06-30 | $359.00 | 70.8M | $25.42B | $435.8M | $312.1M | $25.29B |
| 2026-03-31 | $250.64 | 72M | $18.05B | $521.4M | $316.2M | $17.84B |
| 2025-12-31 | $275.14 | 72.3M | $19.89B | $791.3M | $321.1M | $19.42B |
| 2025-09-30 | $262.33 | 72.3M | $18.97B | $628.5M | $297.6M | $18.64B |
| 2025-06-30 | $218.80 | 72.3M | $15.82B | $509.7M | $303.3M | $15.61B |
| 2025-03-31 | $223.88 | 72.5M | $16.23B | $404.2M | $303.2M | $16.13B |
| 2024-12-31 | $327.56 | 73M | $23.91B | $484.6M | $302.3M | $23.73B |
| 2024-09-30 | $300.16 | 72.8M | $21.85B | $490.9M | $304.8M | $21.67B |
| 2024-06-30 | $324.55 | 73M | $23.69B | $446.2M | $310.7M | $23.56B |
| 2024-03-31 | $395.94 | 73.5M | $29.1B | $601.8M | $306.6M | $28.81B |
| 2023-12-31 | $352.12 | 74.1M | $26.09B | $853.9M | $309M | $25.55B |
| 2023-09-30 | $375.21 | 74.3M | $27.88B | $898.6M | $306.8M | $27.29B |