American Science & Engineering, Inc. (ASEI): Nuance Investments Unloads 80% of Stake

Page 2 of 2 SEC Filing

CUSIP No.: 029429107

ITEM 1(a).

NAME OF ISSUER:

American Science & Engineering, Inc

ITEM 1(b).ADDRESS OF ISSUER’S PRINCIPAL EXECUTIVE OFFICES:

ITEM 2(a).NAME OF PERSON FILING:

ITEM 2(b).ADDRESS OF PRINCIPAL BUSINESS OFFICE OR, IF NONE, RESIDENCE:

ITEM 2(c).CITIZENSHIP:

ITEM 2(d).TITLE OF CLASS OF SECURITIES:

ITEM 2(e).CUSIP NUMBER:

ITEM 3.IF THIS STATEMENT IS FILED PURSUANT TO SECTION 240.13d-1(b), or 13d-2(b) or (c) CHECK WHETHER THE PERSON FILING IS A:

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Broker or dealer registered under Section 15 of the Act (15 U.S.C. 78c);

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Bank as defined in Section 3(a)(6) of the Act (15 U.S.C. 78c);

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Insurance company as defined in Section 3(a)(19) of the Act (15 U.S.C. 78c);

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Investment company registered under Section 8 of the Investment Company Act of 1940 (15 U.S.C 80a-8);

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An investment adviser in accordance with 240.13d-1(b)(1)(ii)(E);

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An employee benefit plan or endowment fund in accordance with 240.13d-1(b)(1)(ii)(F);

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A parent holding company or control person in accordance with 240.13d-1(b)(1)(ii)(G);

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A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);

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A church plan that is excluded from the definition of an investment company under Section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);

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A non-U.S. institution in accordance with 240.13d-1(b)(1)(ii)(J);

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Group, in accordance with 240.13d-1(b)(1)(ii)(K). If filing as a non-U.S. institution in accordance with 240.13d1(b)(1)(ii)(J), please specify the type of institution:

ITEM 4.OWNERSHIP(a) Amount beneficially owned:155,346(b) Percent of class:2.17%(c) Number of shares as to which the person has:(i) sole power to vote or to direct the vote:155,346(ii) shared power to vote or to direct the vote: (iii) sole power to dispose or direct the disposition of:155,346(iv) shared power to dispose or to direct the disposition of: ITEM 5.OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS:

ITEM 6.OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON:ITEM 7.IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY:ITEM 8.IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP:ITEM 9.NOTICE OF DISSOLUTION OF GROUP:ITEM 10.CERTIFICATION: