SC 13D/A 1 heii13da4.txt OMB APPROVAL OMB Number:3235-0145 Expires: August 31, 1999 Estimated average burden hours per response 14.90 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 3) HEI, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 404160103 (CUSIP Number) May 20, 2002 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: /_X_/ Rule 13d-2(a) * The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page. The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes). Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number. SEC 1745 (3-98) Page 1 of 9 CUSIP No. 404160103 13D Page 2 of 9 ---------------------------------------------------------------- 1 NAME OF REPORTING PERSONS IRS IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) RS Investment Management Co. LLC ---------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)/ / (b)/ / ---------------------------------------------------------------- 3 SEC USE ONLY ---------------------------------------------------------------- 4 SOURCE OF FUNDS WC ---------------------------------------------------------------- 5 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware ---------------------------------------------------------------- NUMBER OF 6 SOLE VOTING POWER SHARES -0- BENEFICIALLY --------------------------------------- OWNED BY 7 SHARED VOTING POWER EACH -1,443,300- REPORTING --------------------------------------- PERSON 8 SOLE DISPOSITIVE POWER WITH -0- --------------------------------------- 9 SHARED DISPOSITIVE POWER -1,443,300- ---------------------------------------------------------------- 10 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON -1,443,300- ---------------------------------------------------------------- 11 CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See Instructions) ---------------------------------------------------------------- 12 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 24.1% ---------------------------------------------------------------- 13 TYPE OF REPORTING PERSON (See Instructions) OO, HC ---------------------------------------------------------------- CUSIP No. 404160103 13D Page 3 of 9 ---------------------------------------------------------------- 1 NAME OF REPORTING PERSONS IRS IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) RS Investment Management, L.P. ---------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)/ / (b)/ / ---------------------------------------------------------------- 3 SEC USE ONLY ---------------------------------------------------------------- 4 SOURCE OF FUNDS WC ---------------------------------------------------------------- 5 CITIZENSHIP OR PLACE OF ORGANIZATION California ---------------------------------------------------------------- NUMBER OF 6 SOLE VOTING POWER SHARES -0- BENEFICIALLY --------------------------------------- OWNED BY 7 SHARED VOTING POWER EACH -1,443,300- REPORTING --------------------------------------- PERSON 8 SOLE DISPOSITIVE POWER WITH -0- --------------------------------------- 9 SHARED DISPOSITIVE POWER -1,443,300- ---------------------------------------------------------------- 10 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON -1,443,300- ---------------------------------------------------------------- 11 CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See Instructions) ---------------------------------------------------------------- 12 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 24.1% ---------------------------------------------------------------- 13 TYPE OF REPORTING PERSON (See Instructions) IA, PN ---------------------------------------------------------------- CUSIP No. 404160103 13D Page 4 of 9 ---------------------------------------------------------------- 1 NAME OF REPORTING PERSONS IRS IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) RS Diversified Growth Fund ---------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)/ / (b)/ / ---------------------------------------------------------------- 3 SEC USE ONLY ---------------------------------------------------------------- 4 SOURCE OF FUNDS WC ---------------------------------------------------------------- 5 CITIZENSHIP OR PLACE OF ORGANIZATION Massachusetts ---------------------------------------------------------------- NUMBER OF 6 SOLE VOTING POWER SHARES -0- BENEFICIALLY --------------------------------------- OWNED BY 7 SHARED VOTING POWER EACH -832,400- REPORTING --------------------------------------- PERSON 8 SOLE DISPOSITIVE POWER WITH -0- --------------------------------------- 9 SHARED DISPOSITIVE POWER -832,400- ---------------------------------------------------------------- 10 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON -832,400- ---------------------------------------------------------------- 11 CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See Instructions) ---------------------------------------------------------------- 12 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 13.9% ---------------------------------------------------------------- 13 TYPE OF REPORTING PERSON (See Instructions) IV ---------------------------------------------------------------- CUSIP No. 404160103 13D Page 5 of 9 ITEM 1. This Schedule 13D is filed with respect to the Common Stock of HEI, Inc. ITEM 2. This Schedule 13D is filed on behalf of the following: I. (a)RS Investment Management Co. LLC is a Delaware Limited Liability Company. (b) 388 Market Street, San Francisco, CA 94111 (c) holding company (d) no convictions in criminal proceedings (e) no civil or administrative proceedings II. (a)RS Investment Management, L.P. is a California Limited Partnership. (b) 388 Market Street, San Francisco, CA 94111 (c) registered investment adviser (d) no convictions in criminal proceedings (e) no civil or administrative proceedings III. (a)RS Diversified Growth Fund is a series of a Massachusetts Business Trust. (b) 388 Market Street, San Francisco, CA 94111 (c) investment company (d) no convictions in criminal proceedings (e) no civil or administrative proceedings CUSIP No. 404160103 13D Page 6 of 9 ITEM 3 The securities with respect to which this Schedule 13D is filed were purchased by Funds managed by RSIM, L.P. and RS Growth Group LLC using working capital contributed by the Funds' respective partners and shareholders. ITEM 4 This schedule is being filed based on a change in the ownership position of Funds managed by RSIM, L.P. and RS Growth Group LLC due to acquisitions. All shares are held for investment purposes only. The reporting persons may sell all or part or acquire additional securities of the Issuer depending on market conditions and other economic factors. ITEM 5 The aggregate number and percentage of the class of securities identified pursuant to Item 1 of this Schedule 13D that are beneficially owned by the persons listed in Item 2 are as follows: RS Investment Mgmt Co. LLC 1,443,300 24.1% RS Investment Mgmt, L.P. 1,443,300 24.1% RS Diversified Growth Fund 832,400 13.9% All percentages in this table are based, pursuant to 13D-1(e) of the Securities Exchange Act of 1934, as amended, on 5,985,710 shares of Common Stock of the Issuer outstanding as of April 15, 2002. RS Investment Mgmt Co. LLC is a Delaware Limited Liability Company that is deemed to have shared dispositive power over 1,443,300 shares of the Issuer. RS Investment Mgmt, L.P. is a California Limited Partnership that is deemed to have shared dispositive power over 1,443,300 shares of the Issuer. RS Diversified Growth Fund is an investment company that is part of a Massachusetts Business Trust with shared dispositive power over 832,400 shares of the Issuer. CUSIP No. 404160103 13D Page 7 of 9 The following is a list of transactions by the filing parties in the last 60 days: ACCT DATE SHARES NET TRADE TYPE Sub-advised acct 03/20/2002 20000 110000 open mkt purch Sub-advised acct 03/20/2002 1100 6050 open mkt purch Sub-advised acct 03/20/2002 8400 46200 open mkt purch DGF 03/20/2002 60500 332750 open mkt purch Smaller Co Growth 03/20/2002 4300 24725 open mkt sale Smaller Co Growth 03/20/2002 100000 549992 open mkt sale Sub-advised acct 03/20/2002 10000 55000 open mkt purch Sub-advised acct 03/21/2002 200 1188 open mkt purch Sub-advised acct 03/21/2002 200 1188 open mkt purch DGF 03/21/2002 2100 12474 open mkt purch Sub-advised acct 03/22/2002 100 601 open mkt purch Sub-advised acct 03/22/2002 100 601 open mkt purch DGF 03/22/2002 800 4812 open mkt purch Sub-advised acct 03/25/2002 200 1205 open mkt purch Sub-advised acct 03/25/2002 200 1205 open mkt purch DGF 03/25/2002 1600 9640 open mkt purch DGF 03/26/2002 200 1205 open mkt purch Sub-advised acct 04/08/2002 200 1324 open mkt purch DGF 04/08/2002 300 1985 open mkt purch RS acct 04/08/2002 100 662 open mkt purch Sub-advised acct 04/09/2002 1700 11679 open mkt purch DGF 04/09/2002 2400 16488 open mkt purch RS acct 04/09/2002 1100 7557 open mkt purch Sub-advised acct 04/10/2002 300 2099 open mkt purch DGF 04/10/2002 100 700 open mkt purch RS acct 04/10/2002 600 4198 open mkt purch RS acct 04/10/2002 400 2798 open mkt purch RS acct 04/10/2002 100 700 open mkt purch Sub-advised acct 04/11/2002 700 5003 open mkt purch Sep acct 04/11/2002 100 715 open mkt purch DGF 04/11/2002 300 2144 open mkt purch RS acct 04/11/2002 800 5718 open mkt purch RS acct 04/11/2002 750 5360 open mkt purch RS acct 04/11/2002 300 2144 open mkt purch Sub-advised acct 04/12/2002 400 3167 open mkt purch DGF 04/12/2002 100 792 open mkt purch RS acct 04/12/2002 400 3167 open mkt purch RS acct 04/12/2002 600 4751 open mkt purch RS acct 04/12/2002 100 792 open mkt purch Sub-advised acct 04/26/2002 600 4708 open mkt purch Sub-advised acct 04/26/2002 100 785 open mkt purch Sep acct 04/26/2002 100 785 open mkt purch DGF 04/26/2002 200 1569 open mkt purch RS acct 04/26/2002 700 5493 open mkt purch RS acct 04/26/2002 600 4708 open mkt purch RS acct 04/26/2002 200 1569 open mkt purch Sub-advised acct 04/29/2002 200 1581 open mkt purch DGF 04/29/2002 200 1581 open mkt purch RS acct 04/29/2002 300 2372 open mkt purch RS acct 04/29/2002 300 2372 open mkt purch RS acct 04/29/2002 100 791 open mkt purch Sub-advised acct 04/30/2002 1100 8937 open mkt purch Sub-advised acct 04/30/2002 100 812 open mkt purch Sep acct 04/30/2002 100 812 open mkt purch DGF 04/30/2002 400 3250 open mkt purch RS acct 04/30/2002 1200 9750 open mkt purch RS acct 04/30/2002 1200 9750 open mkt purch RS acct 04/30/2002 400 3250 open mkt purch Sub-advised acct 05/03/2002 600 4704 open mkt purch DGF 05/03/2002 7300 57232 open mkt purch DGF 05/03/2002 200 1605 open mkt purch RS acct 05/03/2002 1200 9408 open mkt purch RS acct 05/03/2002 900 7056 open mkt purch Sub-advised acct 05/06/2002 100 793 open mkt purch DGF 05/06/2002 1200 9521 open mkt purch RS acct 05/06/2002 200 1587 open mkt purch RS acct 05/06/2002 100 793 open mkt purch Sub-advised acct 05/08/2002 800 6448 open mkt purch DGF 05/08/2002 9150 73747 open mkt purch RS acct 05/08/2002 1600 12896 open mkt purch RS acct 05/08/2002 1150 9269 open mkt purch DGF 05/09/2002 3500 27732 open mkt purch RS acct 05/09/2002 900 7131 open mkt purch RS acct 05/09/2002 100 792 open mkt purch Sub-advised acct 05/14/2002 300 2418 open mkt purch Sub-advised acct 05/14/2002 200 1612 open mkt purch DGF 05/14/2002 3900 31434 open mkt purch RS acct 05/14/2002 600 4836 open mkt purch RS acct 05/14/2002 100 806 open mkt purch Sub-advised acct 05/15/2002 300 2473 open mkt purch Sub-advised acct 05/15/2002 200 1648 open mkt purch DGF 05/15/2002 4700 38738 open mkt purch RS acct 05/15/2002 700 5769 open mkt purch RS acct 05/15/2002 100 824 open mkt purch Sub-advised acct 05/16/2002 200 1571 open mkt purch Sub-advised acct 05/16/2002 100 785 open mkt purch DGF 05/16/2002 2550 20027 open mkt purch RS acct 05/16/2002 400 3141 open mkt purch RS acct 05/16/2002 100 785 open mkt purch Sub-advised acct 05/17/2002 100 792 open mkt purch DGF 05/17/2002 1200 9510 open mkt purch RS acct 05/17/2002 200 1585 open mkt purch
CUSIP No. 404160103 13D Page 8 of 9 ITEM 6 Please refer to Item 5. ITEM 7 The following exhibits are filed herewith: Exhibit A - Joint Filing Agreement ITEM 8 SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. Dated: May 21, 2002 RS INVESTMENT MANAGEMENT CO. LLC By: /s/ G. Randall Hecht G. Randall Hecht Chief Executive Officer RS INVESTMENT MANAGEMENT, L.P. By: /s/ G. Randall Hecht G. Randall Hecht Chief Executive Officer RS DIVERSIFIED GROWTH FUND By: RS Investment Management, L.P. Investment Adviser By: /s/ G. Randall Hecht G. Randall Hecht Chief Executive Officer CUSIP No. 404160103 13D Page 9 of 9 EXHIBIT A JOINT FILING AGREEMENT The undersigned hereby agree that they are filing this statement jointly pursuant to Rule 13d-1(f)(1). Each of them is responsible for the timely filing of the Schedule 13D and any amendments thereto, and for the completeness and accuracy of the information concerning such person contained therein; but none of them is responsible for the completeness or accuracy of the information concerning the other persons making the filing, unless such person knows or has reason to believe that such information is accurate. Dated: May 21, 2002 RS INVESTMENT MANAGEMENT CO. LLC By: /s/ G. Randall Hecht G. Randall Hecht Chief Executive Officer RS INVESTMENT MANAGEMENT, L.P. By: /s/ G. Randall Hecht G. Randall Hecht Chief Executive Officer RS DIVERSIFIED GROWTH FUND By: RS Investment Management, L.P. Investment Adviser By: /s/ G. Randall Hecht G. Randall Hecht Chief Executive Officer