| 32.93 Data as of May 17 |  +0.32 / +0.98%Today’s Change | 31.72 Today|||52-Week Range 42.42 | -11.98% Year-to-Date |
| Mutual fund holders | 67.08% |
| Other institutional | 27.04% |
| Individual stakeholders | 2.85% |
| 3/31/2013 | UBS GLOBAL ASSET MANAGEMENT Bought 238.1 Thousand shares of Esco Technologies Inc |
| 3/31/2013 | BOSTON TRUST & INVESTMENT MANAGE... Bought 214.3 Thousand shares of Esco Technologies Inc |
| 3/31/2013 | ROYCE & ASSOCIATES LLC Bought 185.0 Thousand shares of Esco Technologies Inc |
| Stockholder | Stake | Shares owned | Total value ($) | Shares bought / sold | Total change |
|---|---|---|---|---|---|
| Columbia Wanger Asset Management ... | 13.97% | 3,688,750 | 132,684,338 | -78,750 | -2.09% |
| Waddell & Reed Investment Managem... | 11.51% | 3,039,318 | 109,324,268 | 0 | 0.00% |
| BlackRock Fund Advisors | 7.62% | 2,012,932 | 72,405,164 | +128,884 | +6.84% |
| Wellington Management Co. LLP | 6.19% | 1,633,438 | 58,754,765 | +54,345 | +3.44% |
| The Vanguard Group, Inc. | 5.64% | 1,490,152 | 53,600,767 | -36,122 | -2.37% |
| T. Rowe Price Associates, Inc. | 5.20% | 1,374,010 | 49,423,140 | +23,800 | +1.76% |
| Dimensional Fund Advisors, Inc. | 3.67% | 968,804 | 34,847,880 | +50,850 | +5.54% |
| Heartland Advisors, Inc. | 3.40% | 899,075 | 32,339,728 | -129,405 | -12.58% |
| Boston Trust & Investment Managem... | 2.54% | 669,393 | 24,078,066 | +214,325 | +47.10% |
| SSgA Funds Management, Inc. | 2.24% | 591,196 | 21,265,320 | +79,418 | +15.52% |
| Mutual fund | Stake | Shares owned | Total value ($) | Shares bought / sold | Total change |
|---|---|---|---|---|---|
| Columbia Acorn Fund | 8.33% | 2,200,000 | 79,134,000 | 0 | 0.00% |
| Waddell & Reed Advisors Science &... | 6.43% | 1,698,503 | 61,095,153 | -174,418 | -9.31% |
| Ivy Science & Technology Fund | 4.18% | 1,102,593 | 39,660,270 | +19 | +0.00% |
| T Rowe Price Small Cap Stock Fund | 3.91% | 1,033,400 | 37,171,398 | -1,000 | -0.10% |
| Heartland Value Plus Fund | 3.79% | 1,000,000 | 35,970,000 | +69,338 | +7.45% |
| Columbia Acorn USA Fund | 2.88% | 760,000 | 27,337,200 | 0 | 0.00% |
| Government Pension Fund - Global ... | 2.12% | 559,906 | 20,139,819 | +191,431 | +51.95% |
| iShares Core S&P Small Cap ETF | 1.74% | 460,339 | 16,558,394 | +10,100 | +2.24% |
| Vanguard Small Cap Index Fund | 1.68% | 443,899 | 15,967,047 | +11,598 | +2.68% |
| iShares Russell 2000 Index Fund | 1.60% | 423,587 | 15,236,424 | -5,257 | -1.23% |
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