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IOSP - As of  04/30/25, 11:04:38 AM:   124 Insider Transactions.

Sector: Basic Materials    Industry: Specialty Chemicals
Prev Close:$47.67  Avg Vol(3m): 147,170  P/E: 9.70  EPS: 4.92

Email this page to a friend.    Insider Transactions for IOSP

Buy/Sell* Filed Date Subject Symbol Acquirer Pct Owned Details
S 2020-02-12 11:25:26.0 INNOSPEC INC IOSP DIMENSIONAL FUND ADVISORS LP 5.88% view
B 2020-02-11 19:24:14.0 INNOSPEC INC IOSP VANGUARD GROUP INC 10.59% view
B 2020-02-04 13:39:19.0 INNOSPEC INC IOSP WELLS FARGO & COMPANY 5.3% view
S 2020-02-04 12:16:11.0 INNOSPEC INC IOSP BlackRock Inc 15.6% view
B 2019-02-11 16:31:04.0 INNOSPEC INC IOSP VANGUARD GROUP INC 10.27% view
B 2019-02-08 09:04:36.0 INNOSPEC INC IOSP DIMENSIONAL FUND ADVISORS LP 6.0% view
B 2019-01-28 14:51:37.0 INNOSPEC INC IOSP BlackRock Inc 16.4% view
B 2018-07-10 08:28:33.0 INNOSPEC INC IOSP VANGUARD GROUP INC 10.01% view
S 2018-02-13 16:30:49.0 INNOSPEC INC IOSP Huber Capital Management LLC 3.15% view
S 2018-02-13 09:39:21.0 INNOSPEC INC IOSP FMR LLC 11.077% view
B 2018-02-09 09:47:32.0 INNOSPEC INC IOSP DIMENSIONAL FUND ADVISORS LP 5.82% view
B 2018-02-09 09:11:09.0 INNOSPEC INC IOSP VANGUARD GROUP INC 9.28% view
B 2018-01-19 13:59:35.0 INNOSPEC INC IOSP BlackRock Inc 14.3% view
B 2017-02-14 11:24:40.0 INNOSPEC INC IOSP FMR LLC 11.422% view
S 2017-02-13 16:51:13.0 INNOSPEC INC IOSP Huber Capital Management LLC 5.26% view
B 2017-02-10 15:49:17.0 INNOSPEC INC IOSP VANGUARD GROUP INC 8.26% view
B 2017-02-09 10:22:09.0 INNOSPEC INC IOSP DIMENSIONAL FUND ADVISORS LP 5.53% view
S 2017-02-07 11:55:53.0 INNOSPEC INC IOSP PRICE T ROWE ASSOCIATES INC 3.6% view
B 2017-01-12 17:09:01.0 INNOSPEC INC IOSP BlackRock Inc 11.6% view
B 2016-09-09 13:09:50.0 INNOSPEC INC IOSP BlackRock Inc 10.2% view
B 2016-05-10 08:40:07.0 INNOSPEC INC IOSP FMR LLC 10.099% view
S 2016-02-11 13:32:55.0 INNOSPEC INC IOSP WELLINGTON MANAGEMENT GROUP LLP 0.19% view
S 2016-02-11 09:53:54.0 INNOSPEC INC IOSP PRICE T ROWE ASSOCIATES INC 5.7% view
B 2016-02-10 08:39:16.0 INNOSPEC INC IOSP VANGUARD GROUP INC 7.46% view
S 2016-02-04 11:41:20.0 INNOSPEC INC IOSP ROYCE & ASSOCIATES LLC 2.58% view
B 2016-01-26 16:39:32.0 INNOSPEC INC IOSP BlackRock Inc 9.6% view
S 2015-10-13 12:13:27.0 INNOSPEC INC IOSP PRICE T ROWE ASSOCIATES INC 7.2% view
S 2015-05-05 13:01:56.0 INNOSPEC INC IOSP ROYCE & ASSOCIATES LLC 7.36% view
B 2015-02-12 16:30:57.0 INNOSPEC INC IOSP Huber Capital Management LLC 5.95% view
S 2015-02-12 10:49:01.0 INNOSPEC INC IOSP WELLINGTON MANAGEMENT GROUP LLP 5.01% view
S 2015-02-10 15:49:24.0 INNOSPEC INC IOSP PRICE T ROWE ASSOCIATES INC 13.7% view
B 2015-02-10 12:40:07.0 INNOSPEC INC IOSP VANGUARD GROUP INC 5.74% view
B 2015-02-03 13:35:40.0 INNOSPEC INC IOSP BlackRock Inc 5.1% view
S 2015-01-13 13:08:52.0 INNOSPEC INC IOSP ROYCE & ASSOCIATES LLC 12.48% view
S 2015-01-12 09:58:01.0 INNOSPEC INC IOSP FMR LLC 6.255% view
S 2014-02-14 09:32:07.0 INNOSPEC INC IOSP WELLINGTON MANAGEMENT CO LLP 6.48% view
S 2014-02-14 06:51:37.0 INNOSPEC INC IOSP FMR LLC 11.51% view
B 2014-02-11 09:49:12.0 INNOSPEC INC IOSP VANGUARD GROUP INC 5.26% view
B 2014-02-10 14:18:05.0 INNOSPEC INC IOSP Huber Capital Management LLC 5.01% view
B 2014-02-10 11:14:36.0 INNOSPEC INC IOSP PRICE T ROWE ASSOCIATES INC 13.9% view
B 2014-01-10 14:30:11.0 INNOSPEC INC IOSP ROYCE & ASSOCIATES LLC 12.95% view
B 2013-09-05 17:19:51.0 INNOSPEC INC IOSP ROYCE & ASSOCIATES LLC 10.2% view
B 2013-02-14 14:04:09.0 INNOSPEC INC IOSP FMR LLC 12.921% view
B 2013-02-14 12:29:55.0 INNOSPEC INC IOSP WELLINGTON MANAGEMENT CO LLP 7.79% view
S 2013-02-08 15:56:22.0 INNOSPEC INC IOSP GENDELL JEFFREY L ET AL 2.13% view
B 2013-02-08 13:04:17.0 INNOSPEC INC IOSP PRICE T ROWE ASSOCIATES INC 0.0% view
B 2013-01-17 09:30:29.0 INNOSPEC INC IOSP ROYCE & ASSOCIATES LLC 5.47% view
B 2012-02-14 12:17:43.0 INNOSPEC INC IOSP FMR LLC 6.608% view
S 2012-02-13 09:20:33.0 INNOSPEC INC IOSP GENDELL JEFFREY L ET AL 5.17% view
B 2012-02-09 11:24:16.0 INNOSPEC INC IOSP PRICE T ROWE ASSOCIATES INC 14.0% view
B 2012-01-13 15:27:41.0 INNOSPEC INC IOSP ROYCE & ASSOCIATES LLC 5.22% view
S 2011-06-17 16:24:51.0 INNOSPEC INC IOSP TONTINE CAPITAL PARTNERS L P 10.9% view
S 2011-02-10 15:19:25.0 INNOSPEC INC IOSP PRICE T ROWE ASSOCIATES INC 13.0% view
B 2010-10-06 17:10:30.0 INNOSPEC INC IOSP TONTINE CAPITAL PARTNERS L P 100.0% view
S 2010-09-17 17:22:43.0 INNOSPEC INC IOSP TONTINE CAPITAL PARTNERS L P 14.4% view
S 2010-05-07 16:57:21.0 INNOSPEC INC IOSP TONTINE CAPITAL PARTNERS L P 15.7% view
S 2010-03-10 19:15:30.0 INNOSPEC INC IOSP TONTINE CAPITAL PARTNERS L P 20.2% view
S 2010-02-03 21:35:44.0 INNOSPEC INC IOSP TONTINE CAPITAL PARTNERS L P 20.4% view
S 2009-10-23 16:37:24.0 INNOSPEC INC IOSP TONTINE CAPITAL PARTNERS L P 20.4% view
B 2009-02-12 15:17:53.0 INNOSPEC INC IOSP PRICE T ROWE ASSOCIATES INC 13.2% view
B 2008-11-10 16:48:25.0 INNOSPEC INC IOSP TONTINE CAPITAL PARTNERS L P 20.5% view
S 2008-02-14 16:26:14.0 INNOSPEC INC IOSP FMR LLC n/a view
S 2008-02-13 11:15:42.0 INNOSPEC INC IOSP PRICE T ROWE ASSOCIATES INC 13.0% view
S 2008-02-01 17:00:01.0 INNOSPEC INC IOSP GENDELL JEFFREY L ET AL 17.67% view
S 2008-01-22 14:19:41.0 INNOSPEC INC IOSP BARCLAYS GLOBAL INVESTORS NA 2.93% view
S 2007-02-14 16:50:59.0 INNOSPEC INC IOSP FMR CORP n/a view
S 2007-02-13 21:36:03.0 INNOSPEC INC IOSP PRICE T ROWE ASSOCIATES INC 14.4% view
S 2007-02-13 16:43:41.0 INNOSPEC INC IOSP PROSPECTOR PARTNERS LLC 4.8% view
S 2007-01-26 13:53:20.0 INNOSPEC INC IOSP ARTISAN PARTNERS LTD PARTNERSHIP 0.0% view
B 2007-01-23 16:12:01.0 INNOSPEC INC IOSP BARCLAYS GLOBAL INVESTORS NA 3.47% view
S 2007-01-18 17:28:51.0 INNOSPEC INC IOSP BARCLAYS GLOBAL INVESTORS NA n/a view
B 2007-01-17 16:56:25.0 INNOSPEC INC IOSP GENDELL JEFFREY L ET AL 18.22% view
B 2006-07-10 00:00:00.0 INNOSPEC INC OTL PRICE T ROWE ASSOCIATES INC 14.5% view
B 2006-02-15 00:00:00.0 INNOSPEC INC OTL GENDELL JEFFREY L ET AL 15.3% view
B 2006-02-14 00:00:00.0 INNOSPEC INC OTL PROSPECTOR PARTNERS LLC 10.5% view
S 2006-02-14 00:00:00.0 INNOSPEC INC OTL PRICE T ROWE ASSOCIATES INC 14.4% view
S 2006-02-14 00:00:00.0 INNOSPEC INC OTL WHITE MOUNTAINS INSURANCE GROUP LTD 10.5% view
B 2006-02-10 00:00:00.0 INNOSPEC INC OTL BARCLAYS PLC 0.0% view
B 2006-01-27 00:00:00.0 INNOSPEC INC OTL ARTISAN PARTNERS LTD PARTNERSHIP 6.5% view
S 2006-01-26 00:00:00.0 INNOSPEC INC OTL BARCLAYS GLOBAL INVESTORS NA 4.43% view
B 2005-08-02 00:00:00.0 OCTEL CORP OTL GENDELL JEFFREY L ET AL 11.5% view
B 2005-02-14 00:00:00.0 OCTEL CORP OTL BARCLAYS GLOBAL INVESTORS NA 4.54% view
S 2005-02-14 00:00:00.0 OCTEL CORP OTL PRICE T ROWE ASSOCIATES INC 14.4% view
S 2005-02-14 00:00:00.0 OCTEL CORP OTL FMR CORP n/a view
S 2005-02-14 00:00:00.0 OCTEL CORP OTL KESTREL INVESTMENT MANAGEMENT CORP 0.7% view
S 2005-02-11 00:00:00.0 OCTEL CORP OTL WHITE MOUNTAINS INSURANCE GROUP LTD 10.7% view
B 2005-02-10 00:00:00.0 OCTEL CORP OTL GENDELL JEFFREY L ET AL 8.13% view
B 2004-11-18 00:00:00.0 OCTEL CORP OTL GENDELL JEFFREY L ET AL 7.35% view
S 2004-02-13 00:00:00.0 OCTEL CORP OTL WHITE MOUNTAINS INSURANCE GROUP LTD 10.7% view
S 2004-02-10 00:00:00.0 OCTEL CORP OTL KESTREL INVESTMENT MANAGEMENT CORP 6.6% view
S 2004-02-10 00:00:00.0 OCTEL CORP OTL PRICE T ROWE ASSOCIATES INC 15.6% view
S 2003-02-14 00:00:00.0 OCTEL CORP OTL FMR CORP n/a view
S 2003-02-13 00:00:00.0 OCTEL CORP OTL KESTREL INVESTMENT MANAGEMENT CORP 7.3% view
S 2003-02-06 00:00:00.0 OCTEL CORP OTL PRICE T ROWE ASSOCIATES INC 15.8% view
B 2003-02-05 00:00:00.0 OCTEL CORP OTL WHITE MOUNTAINS INSURANCE GROUP LTD 11.1% view
B 2002-08-09 00:00:00.0 OCTEL CORP OTL BAUPOST GROUP LLC 3.33% view
S 2002-02-14 00:00:00.0 OCTEL CORP OTL FMR CORP n/a view
S 2002-02-14 00:00:00.0 OCTEL CORP OTL BAUPOST GROUP LLC 14.88% view
S 2002-02-13 00:00:00.0 OCTEL CORP OTL KESTREL INVESTMENT MANAGEMENT CORP 7.8% view
B 2002-02-12 00:00:00.0 OCTEL CORP OTL PRICE T ROWE ASSOCIATES INC 16.2% view
S 2001-02-14 00:00:00.0 OCTEL CORP OTL FMR CORP n/a view
B 2001-02-14 00:00:00.0 OCTEL CORP OTL KESTREL INVESTMENT MANAGEMENT CORP 8.0% view
B 2001-02-14 00:00:00.0 OCTEL CORP OTL BAUPOST GROUP LLC 17.9% view
B 2001-02-09 00:00:00.0 OCTEL CORP OTL PRICE T ROWE ASSOCIATES INC 15.9% view
S 2000-07-05 00:00:00.0 OCTEL CORP OTL HALIS JEFFREY S 4.5% view
S 2000-02-14 00:00:00.0 OCTEL CORP OTL FMR CORP n/a view
B 2000-02-14 00:00:00.0 OCTEL CORP OTL KESTREL INVESTMENT MANAGEMENT CORP 6.8% view
S 2000-02-11 00:00:00.0 OCTEL CORP OTL STATE STREET BANK & TRUST CO 2.1% view
B 2000-02-10 00:00:00.0 OCTEL CORP OTL BAUPOST GROUP LLC 15.29% view
B 2000-02-07 00:00:00.0 OCTEL CORP OTL PRICE T ROWE ASSOCIATES INC 13.1% view
S 2000-01-05 00:00:00.0 OCTEL CORP OTL HALIS JEFFREY S 6.1% view
S 1999-11-09 00:00:00.0 OCTEL CORP OTL HALIS JEFFREY S 7.0% view
S 1999-08-12 00:00:00.0 OCTEL CORP OTL HALIS JEFFREY S 8.8% view
B 1999-06-10 00:00:00.0 OCTEL CORP OTL BAUPOST GROUP LLC 15.28% view
S 1999-06-09 00:00:00.0 OCTEL CORP OTL HALIS JEFFREY S 9.9% view
S 1999-02-18 00:00:00.0 OCTEL CORP OTL FMR CORP n/a view
B 1999-02-16 00:00:00.0 OCTEL CORP OTL STATE STREET BANK & TRUST CO 6.8% view
B 1999-02-10 00:00:00.0 OCTEL CORP OTL PRICE T ROWE ASSOCIATES INC 12.3% view
B 1998-11-25 00:00:00.0 OCTEL CORP OTL HALIS JEFFREY S 12.5% view
B 1998-08-10 00:00:00.0 OCTEL CORP OTL FMR CORP n/a view
B 1998-08-05 00:00:00.0 OCTEL CORP OTL HALIS JEFFREY S 11.1% view
B 1998-06-11 00:00:00.0 OCTEL CORP OTL HALIS JEFFREY S 8.6% view
B 1998-06-09 00:00:00.0 OCTEL CORP OTL PRICE T ROWE ASSOCIATES INC 10.2% view
B 1998-06-08 00:00:00.0 OCTEL CORP OTL HALIS JEFFREY S 6.9% view
* Institutions do not report transaction buy/sell types directly. To help members better understand the transactions, this column is filled by InsiderCow's best-effort interpretations.