IDEX Corporation Watch

from 8-K 38 pages Underwriting Agreement $500,000,000 Idex Corporation 4.950% Senior Notes Due 2029

from 8-K 35 pages Underwriting Agreement $500,000,000 Idex Corporation 2.625% Senior Notes Due 2031

from 8-K 38 pages Underwriting Agreement $500,000,000 Idex Corporation 3.0% Senior Notes Due 2030

from 8-K 35 pages Underwriting Agreement $350,000,000 Idex Corporation 4.200% Senior Notes Due 2021

from 8-K 34 pages Underwriting Agreement $300,000,000 Idex Corporation 4.500% Senior Notes Due 2020

from SC 13D/A 1 page Schedule II Information With Respect to Transactions Effected During the Past Sixty Days or Since the Most Recent Filing on Schedule 13d (1) Shares Purchased Average Date Sold(-) Price(2) Common Stock-Idex Corp Gamco Asset Management, Inc. 12/19/05 500- 42.1500 12/19/05 200- 42.2500 12/16/05 1,000- 42.5800 12/15/05 800- 42.5500 12/13/05 1,000- 42.2370 12/13/05 1,000- 42.2370 12/07/05 1,000- 42.0000 12/06/05 200- 44.2500 12/02/05 1,250- 44.4160 12/01/05 7,000- 44.3838 11/30/05 5,000- 44.0212 11/30/05 5,000- 43.9956 11/28/05 500- 43.7140 11/25/05 7,000- 43.9359 11/22/05 512- 43.3195 11/22/05 375- 43.2000 11/21/05 2,999- 43.2600 11/18/05 2,000- 42.9100 11/15/05 2,300- 41.9374 11/14/05 1,000- 41.7300 11/07/05 500- 41.3100 11/04/05 2,000- 40.8355 11/02/05 5,000- 40.2660 10/24/05 500- 41.5100 Gabelli Funds, LLC. Gabelli Equity Trust 12/19/05 2,000- 41.9225 12/16/05 2,000- 42.5050 12/12/05 3,000- 42.4617 11/14/05 10,000 41.8025 11/14/05 10,000- 41.7720 11/07/05 5,000- 41.2200 (1) Unless Otherwise Indicated, All Transactions Were Effected on the NYSE. (2) Price Excludes Commission. (*) Results in Change of Dispositive Power and Beneficial Ownership

from SC 13D/A 1 page Schedule II Information With Respect to Transactions Effected During the Past Sixty Days or Since the Most Recent Filing on Schedule 13d (1) Shares Purchased Average Date Sold(-) Price(2) Common Stock-Idex Corp. Gamco Investors, Inc. 9/15/04 1,575- 33.7424 9/14/04 3,000- 33.3013 9/14/04 1,300- 33.3638 9/13/04 5,701- *Do 9/13/04 2,000- 33.2780 9/10/04 500- 32.7800 9/08/04 250- 32.1200 9/03/04 1,050- 31.9467 9/01/04 300- 30.5300 8/27/04 925- 30.9835 8/25/04 2,000- 30.9855 8/25/04 2,000 30.9855 8/25/04 2,000- 30.9855 8/20/04 676- *Do 8/18/04 450- 30.1200 8/13/04 75- *Do 8/13/04 75- *Do 8/11/04 250- 30.7400 8/10/04 3,000- 30.3880 8/10/04 500- 30.4700 8/04/04 3,000- 31.6547 7/30/04 725- 31.9683 7/29/04 1- 32.8800 7/29/04 1 32.8800 7/22/04 1,500- 31.3833 7/21/04 1,500- 32.7000 7/20/04 1,500- 32.0200 7/19/04 816- 32.2169 7/16/04 4,250- 32.5940 Gabelli Funds, LLC. Gabelli Asset Fund 9/15/04 6,000- 33.5200 9/13/04 2,000- 32.9610 8/31/04 2,000- 30.8525 (1) Unless Otherwise Indicated, All Transactions Were Effected on the NYSE. (2) Price Excludes Commission. (*) Results in Change of Dispositive Power and Beneficial Ownership

from SC 13D/A 1 page Schedule II Information With Respect to Transactions Effected During the Past Sixty Days or Since the Most Recent Filing on Schedule 13d (1) Shares Purchased Average Date Sold(-) Price(2) Common Stock-Idex Corp Gamco Investors, Inc. 7/15/03 5,000- 35.9928 7/08/03 300- 36.3400 7/07/03 5,000- 36.3904 7/07/03 4,000- 36.4038 7/01/03 2,000- 35.5340 6/30/03 546- 36.2600 6/27/03 1,204- 35.8000 6/26/03 1,250- 35.5260 6/25/03 500- 35.7000 6/25/03 1,000- 35.7640 6/23/03 800- 36.2375 6/19/03 1,000- 36.5050 6/18/03 2,000- 36.0370 6/18/03 3,000- 36.1407 6/17/03 3,000- 35.9233 6/17/03 2,000- 36.0375 6/16/03 2,000- 35.6060 6/16/03 500- 35.3800 6/13/03 5,000- 35.4940 6/11/03 3,000- 34.9613 6/11/03 1,500 34.9613 6/09/03 1,900- 35.0884 6/06/03 500- *Do 6/06/03 1,000- 35.7000 6/05/03 500- 35.2600 6/03/03 1,000- 34.2000 6/02/03 1,000- 34.5750 5/29/03 5,000- 33.2774 5/29/03 1,000- 33.4300 5/29/03 40- *Do 5/29/03 1,260- *Do 5/28/03 1,000- 33.3040 5/27/03 1,000- 32.2500 5/21/03 3,000- 32.0880 5/19/03 2,000- 32.1650 5/16/03 1,000- 32.7510 Gabelli Funds, LLC. Gabelli Equity Trust 6/06/03 5,000- 35.8404 5/29/03 5,000- 33.2977 5/28/03 3,000- 32.9247 5/27/03 2,000- 32.3693 5/16/03 1,300- 32.8069 Gabelli Asset Fund 7/15/03 4,000- 35.7800 7/14/03 4,000- 35.7605 5/29/03 2,000- 33.2977 5/19/03 1,000- 32.4250 Gabelli Capital Asset Fund 5/27/03 1,000- 32.3693 (1) Unless Otherwise Indicated, All Transactions Were Effected on the NYSE. (2) Price Excludes Commission. (*) Results in Change of Dispositive Power and Beneficial Ownership

from SC 13D/A 1 page Schedule II Information With Respect to Transactions Effected During the Past Sixty Days or Since the Most Recent Filing on Schedule 13d (1) Shares Purchased Average Date Sold(-) Price(2) Common Stock-Idex Corp Gamco Investors, Inc. 8/21/02 1,500- 29.9333 8/20/02 2,000- 29.9920 8/16/02 400- 29.4550 8/15/02 2,000- 29.6625 8/14/02 2,000- 28.6490 8/07/02 2,000- 30.2900 8/05/02 2,000- 29.4740 7/25/02 1,000- 30.7050 7/23/02 1,575- 28.2743 7/22/02 500- 29.2660 7/19/02 500- 30.1800 7/16/02 625- 29.4000 7/12/02 600- 29.8000 6/26/02 1,000- 33.3100 6/26/02 750- 33.1700 6/24/02 3,750- 34.5572 (1) Unless Otherwise Indicated, All Transactions Were Effected on the Ny Stock Exchange. (2) Price Excludes Commission

from SC 13D/A 1 page Schedule II Information With Respect to Transactions Effected During the Past Sixty Days or Since the Most Recent Filing on Schedule 13d (1) Shares Purchased Average Date Sold(-) Price(2) Common Stock-Idex Corp Gamco Investors, Inc. 3/27/02 6,800- 37.2237 3/26/02 4,000- 37.6413 3/26/02 5,000- 37.7462 3/22/02 21,500- 38.4960 3/21/02 20,000- 38.4454 3/20/02 20,000- 38.1530 3/20/02 2,000- 38.0750 3/15/02 4,125- 36.3564 3/14/02 2,000- 36.8000 3/14/02 187- 36.6400 3/13/02 688- 36.3090 3/12/02 27,000- 35.5006 3/11/02 2,000- 36.1690 3/08/02 3,000- 36.9650 3/07/02 3,500- 36.5671 3/01/02 1,000- 35.9160 2/28/02 3,000- 35.9263 2/28/02 7,000- 35.8473 2/25/02 200- 36.3300 2/25/02 4,200- 36.3329 2/21/02 200- 36.4000 2/20/02 100- 36.0800 2/14/02 200- 36.6500 2/11/02 3,300- 35.2924 2/01/02 500- 34.0160 Gabelli Funds, LLC. Gabelli Small Cap Growth Fund 3/20/02 2,000- 38.0510 3/11/02 10,000- 36.5139 Gabelli Equity Trust 3/27/02 10,000- 36.9940 3/26/02 12,000- 37.5682 3/21/02 15,000- 38.4080 3/20/02 3,000- 38.0510 3/15/02 6,000- 36.3740 3/14/02 1,000- 36.6500 Gabelli Capital Asset Fund 3/27/02 3,000- 37.2533 (1) Unless Otherwise Indicated, All Transactions Were Effected on the NYSE. (2) Price Excludes Commission. (*) Results in Change of Dispositive Power and Beneficial Ownership

from SC 13D/A 1 page Schedule II Information With Respect to Transactions Effected During the Past Sixty Days or Since the Most Recent Filing on Schedule 13d (1) Shares Purchased Average Date Sold(-) Price(2) Common Stock-Idex Corp Gamco Investors, Inc. 4/13/99 2,000 24.7500 4/12/99 1,100 25.0000 4/12/99 1,000 23.6250 4/09/99 4,000 23.5000 4/09/99 5,000 23.6050 4/08/99 6,200 23.9055 4/08/99 2,000 23.9055 4/08/99 1,000 24.2500 4/07/99 2,000 24.2500 4/07/99 1,000 24.3125 (1) Unless Otherwise Indicated, All Transactions Were Effected on the NYSE. (2) Price Excludes Commission

from 8-K ~20 pages Underwriting Agreement

from SC 13D/A 1 page Schedule II Information With Respect to Transactions Effected During the Past Sixty Days or Since the Most Recent Filing on Schedule 13d (1) Shares Purchased Average Date Sold(-) Price(2) Common Stock-Idex Corp Gabelli Funds, Inc. the Gabelli Equity Trust,inc. 6/17/97 1,200- 30.9490 6/09/97 5,000- 30.0740 6/05/97 3,000- 30.3240 6/04/97 5,000- 30.0740 6/03/97 5,000- 29.6990 the Gabelli Asset Fund 6/16/97 3,000- 30.7407 6/03/97 5,000- 29.3690 5/05/97 10,000- 27.8366 Gamco Investors, Inc. 5/29/97 2,000 28.7500 5/23/97 1,000 28.3750 Gamco Investors, Inc. 6/24/97 5,000- 30.5250 6/24/97 1,750- 30.5357 6/23/97 7,400- 30.5591 6/20/97 4,500- *Do 6/20/97 875 31.0000 6/20/97 2,700- 30.9537 6/19/97 5,300- 31.2642 6/18/97 1,250- 30.0000 6/18/97 1,000- *Do 6/12/97 800 29.5000 6/11/97 700- 29.6250 6/10/97 800- 29.6250 6/04/97 750- 28.7252 6/04/97 750 28.7252 6/04/97 8,000- 30.0000 6/02/97 875- 29.1250 6/02/97 8,225- 29.1258 5/30/97 22,500- *Do 5/29/97 1,500 29.5000 5/29/97 1,500 28.7500 5/29/97 8,000- 29.1250 5/29/97 200 28.6250 5/27/97 7,550 28.7252 5/23/97 2,500 28.3750 5/22/97 46,064- *Do 5/05/97 3,000- 27.8750 5/05/97 250- 27.3750 5/02/97 12,700- 27.4705 Schedule II Information With Respect to Transactions Effected During the Past Sixty Days or Since the Most Recent Filing on Schedule 13d (1) Shares Purchased Average Date Sold(-) Price(2) Common Stock-Idex Corp Gamco Investors, Inc. 5/02/97 1,500- 27.3750 5/01/97 3,300- 26.4050 5/01/97 13,875- 26.2500 4/30/97 936- 25.8750 4/30/97 4,625- 26.2500 4/30/97 4,625 26.2500 4/25/97 4,500- 25.7500 4/24/97 3,000- 25.6250 (1) Unless Otherwise Indicated, All Transactions Were Effected on the Ny Stock Exchange. (2) Price Excludes Commission. (*) Results in Change of Dispositive Power and Beneficial Ownership

from SC 13D/A ~1 page Schedule II Information With Respect to Transactions Effected During the Past Sixty Days or Since the Most Recent Filing on Schedule 13d (1) Shares Purchased Average Date Sold(-) Price(2) Common Stock-Idex Corp Gabelli Asset Management Company International Advisory Services Ltd 2/03/97 500 Split Gabelli Funds, Inc. the Gabelli Value Fund,inc. 2/03/97 4,750 Split the Gabelli Small Cap Growth Fund 2/03/97 25,000 Split the Gabelli Equity Trust,inc. 2/03/97 138,000 Split 1/07/97 2,000- 39.9487 12/31/96 20,000- 39.3612 12/30/96 6,000- 39.2195 12/26/96 800- 38.9487 12/23/96 200- 38.9487 the Gabelli Asset Fund 2/03/97 170,000 Split 12/31/96 3,000- 39.4487 Gamco Investors, Inc. 2/10/97 1,500 25.7750 2/10/97 3,000- 25.7750 2/03/97 14,500 Split Gamco Investors, Inc. 2/21/97 21,250- 25.2500 2/21/97 7,000- 25.2643 2/21/97 15,000- *Do 2/20/97 2,000 25.3750 2/14/97 250- 25.5000 2/14/97 4,000 25.3750 2/12/97 4,000 25.3750 2/10/97 2,000- 25.7750 2/10/97 1,000 25.7750 2/07/97 750- 25.3333 2/06/97 1,000 23.3750 2/06/97 1,000- 25.3750 2/05/97 1,000- 23.3750 2/03/97 653,908 Split 2/03/97 2,500- 25.2250 1/31/97 500- 38.0000 1/29/97 2,000- 38.2500 1/24/97 700- 39.1964 1/23/97 2,500- 39.6000 1/16/97 750- 39.4583 28 Schedule II Information With Respect to Transactions Effected During the Past Sixty Days or Since the Most Recent Filing on Schedule 13d (1) Shares Purchased Average Date Sold(-) Price(2) Common Stock-Idex Corp Gamco Investors, Inc. 1/15/97 2,000- 39.2500 1/14/97 250- 39.0000 1/14/97 1,500- 38.7500 1/07/97 250- 40.0000 12/31/96 500- 39.3750 12/31/96 1,050- *Do 12/27/96 10,000- 38.9713 12/27/96 7,500- *Do 12/27/96 1,750- 38.6964 12/26/96 10,000- *Do (1) Unless Otherwise Indicated, All Transactions Were Effected on the Ny Stock Exchange. (2) Price Excludes Commission. (*) Results in Change of Dispositive Power and Beneficial Ownership. 29

from SC 13D/A 1 page Schedule II Information With Respect to Transactions Effected During the Past Sixty Days or Since the Most Recent Filing on Schedule 13d (1) Shares Purchased Average Date Sold(-) Price(2) Common Stock-Idex Corp Gabelli Funds, Inc. the Gabelli Small Cap Growth Fund 3/27/96 1,500- 39.8487 3/18/96 1,500- 38.1154 the Gabelli Equity Trust,inc. 4/08/96 800- 39.3237 the Gabelli Asset Fund 3/27/96 1,000- 39.8487 3/25/96 2,000- 39.3237 3/18/96 3,000- 38.1987 3/15/96 6,500- 37.9487 Gamco Investors, Inc. 5/13/96 75,000- *Do 5/02/96 300- 39.7500 5/01/96 1,500- *Do 4/29/96 300- 38.7500 4/23/96 600- *Do 4/18/96 4,500- 40.5000 4/08/96 1,500- 39.5000 3/29/96 1,000- 38.3750 3/28/96 750- 39.5000 3/26/96 1,250- 39.6250 3/22/96 4,000- *Do (1) Unless Otherwise Indicated, All Transactions Were Effected on the Ny Stock Exchange. (2) Price Excludes Commission. (*) Results in Change of Dispositive Power and Beneficial Ownership. Page 34 of 34

from SC 13D/A 1 page Schedule II Information With Respect to Transactions Effected During the Past Sixty Days or Since the Most Recent Filing on Schedule 13d (1) Shares Purchased Average Date Sold(-) Price(2) Common Stock-Idex Corp Gabelli Funds, Inc. the Gabelli Equity Trust,inc. 10/20/95 1,100- 38.6136 10/16/95 7,000- 38.4643 10/11/95 800- 38.0000 9/22/95 2,200- 40.6932 Gamco Investors, Inc. 11/08/95 4,500- 37.6111 11/07/95 2,700- 37.5787 11/03/95 1,900- 37.5000 11/01/95 1,100- 37.6250 10/31/95 5,100- 37.5392 10/27/95 500- 37.0000 10/26/95 1,400- 37.4643 10/26/95 1,000- 37.6250 10/24/95 1,100- 37.9545 10/24/95 200- 38.2500 10/23/95 1,200- 38.4792 10/20/95 2,250- 38.6667 10/19/95 3,000- *Do 10/17/95 2,250- 38.2611 10/13/95 3,000- *Do 10/11/95 1,250- 37.3750 10/10/95 2,500- 37.8750 10/06/95 500- 38.5000 10/05/95 1,500- 37.8750 9/28/95 1,500- *Do 9/25/95 500- 39.7500 9/25/95 2,250- 40.1528 9/20/95 500- 40.5750 9/18/95 250- 39.6250 9/15/95 1,100- 39.5682 9/14/95 450- *Do 9/14/95 400- 39.7500 9/13/95 250- *Do (1) Unless Otherwise Indicated, All Transactions Were Effected on the Ny Stock Exchange. (2) Price Excludes Commission. (*) Results in Change of Dispositive Power and Beneficial Ownership of Gamco Investors, Inc. Page 26 of 26

from SC 13D/A 1 page Schedule II Information With Respect to Transactions Effected During the Past Sixty Days or Since the Most Recent Filing on Schedule 13d (1) Shares Purchased Average Date Sold(-) Price(2) Common Stock-Idex Corp Gabelli Funds, Inc. the Gabelli Small Cap Growth Fund 5/30/95 2,000 34.0000 5/30/95 4,000- 34.0000 the Gabelli Asset Fund 5/03/95 2,100- 33.3036 Gamco Investors, Inc. 6/05/95 1,500- 33.7500 6/02/95 2,250- 34.0000 6/01/95 2,500- 33.8250 5/31/95 750- 34.0000 5/30/95 1,250- 33.7750 5/26/95 2,600- 34.3005 5/24/95 1,000- 34.3750 5/15/95 400- 33.7500 5/12/95 250- 33.8750 5/11/95 800- 34.0000 5/10/95 1,600- 34.2500 5/09/95 500- 34.4500 5/08/95 2,400- 34.1250 5/04/95 1,500- 33.7500 5/02/95 1,500- 33.6667 5/01/95 21,000- 33.7643 4/27/95 500- 32.1250 4/20/95 750- 29.6250 4/17/95 2,850- 30.1250 4/11/95 500- 28.6250 4/10/95 600- 29.0000 (1) Unless Otherwise Indicated, All Transactions Were Effected on the Ny Stock Exchange. (2) Price Excludes Commission. Page 27 of 27

from SC 13D/A 1 page Schedule II Information With Respect to Transactions Effected During the Past Sixty Days or Since the Most Recent Filing on Schedule 13d (1) Shares Purchased Average Date Sold(-) Price(2) Common Stock-Idex Corp Gabelli Funds, Inc. the Gabelli Equity Trust,inc. 6/15/94 2,500- 41.0800 6/10/94 3,900- 40.8141 6/08/94 500- 40.5000 Gamco Investors, Inc. 8/01/94 500- 38.8750 8/01/94 5,000- 39.0530 7/22/94 1,000- 38.7500 7/05/94 1,000- 39.0000 6/20/94 1,200- 41.1458 6/20/94 1,000- 41.2500 6/17/94 2,100- 41.5119 6/16/94 5,900- 41.2119 6/15/94 3,800- 41.0000 6/15/94 2,500- 41.0500 6/14/94 500- 41.0000 6/13/94 500- 40.6250 6/13/94 1,500- *Do 6/09/94 1,000- 40.3750 6/08/94 4,700- 40.2766 6/07/94 3,000- 40.4583 6/03/94 1,000- 39.9500 6/01/94 1,000- 40.1250 (1) Unless Otherwise Indicated, All Transactions Were Effected on the Ny Stock Exchange. (2) Price Excludes Commission. (*) Results in Change of Dispositive Power and Beneficial Ownership of Gamco Investors, Inc

from SC 13D/A 1 page Schedule II Information With Respect to Transactions Effected During the Past Sixty Days or Since the Most Recent Filing on Schedule 13d (1) Shares Purchased Average Date Sold(-) Price(2) Common Stock-Idex Corp Gabelli Funds, Inc. the Gabelli Equity Trust,inc. 4/11/94 2,000- 35.7500 Gamco Investors, Inc. 4/28/94 15,900- 37.8837 4/26/94 3,000- 37.2500 4/25/94 400- 36.8125 4/22/94 3,000- 36.6500 4/20/94 3,000- 36.0542 4/20/94 700- 36.5893 4/18/94 2,000- 36.4563 4/14/94 7,500- 35.5833 3/31/94 1,000- 35.2500 3/29/94 200- 37.5000 3/09/94 37.3740 3/08/94 500 37.3740 3/01/94 8,000- 37.3906 Gabelli & Company, Inc. 3/21/94 500- 38.2500 3/16/94 500- 37.7500 (1) Unless Otherwise Indicated, All Transactions Were Effected on the Ny Stock Exchange. (2) Price Excludes Commission. (*) Results in Change of Dispositive Power and Beneficial Ownership of Gamco Investors, Inc