SC 13D/A 1 heii13da2.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. 2) HEI, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 404160103 (CUSIP Number) March 7, 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 -1,374,000- REPORTING --------------------------------------- PERSON 8 SOLE DISPOSITIVE POWER WITH -0- --------------------------------------- 9 SHARED DISPOSITIVE POWER -1,374,000- ---------------------------------------------------------------- 10 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON -1,374,000- ---------------------------------------------------------------- 11 CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See Instructions) ---------------------------------------------------------------- 12 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 23.0% ---------------------------------------------------------------- 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 -1,374,000- REPORTING --------------------------------------- PERSON 8 SOLE DISPOSITIVE POWER WITH -0- --------------------------------------- 9 SHARED DISPOSITIVE POWER -1,374,000- ---------------------------------------------------------------- 10 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON -1,374,000- ---------------------------------------------------------------- 11 CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See Instructions) ---------------------------------------------------------------- 12 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 23.0% ---------------------------------------------------------------- 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 -727,100- REPORTING --------------------------------------- PERSON 8 SOLE DISPOSITIVE POWER WITH -0- --------------------------------------- 9 SHARED DISPOSITIVE POWER -727,100- ---------------------------------------------------------------- 10 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON -727,100- ---------------------------------------------------------------- 11 CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See Instructions) ---------------------------------------------------------------- 12 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 12.2% ---------------------------------------------------------------- 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 1,374,000 23.0% RS Investment Mgmt, L.P. 1,374,000 23.0% RS Diversified Growth Fund 727,100 12.0% 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 December 10, 2001. RS Investment Mgmt Co. LLC is a Delaware Limited Liability Company that is deemed to have shared dispositive power over 1,374,000 shares of the Issuer. RS Investment Mgmt, L.P. is a California Limited Partnership that is deemed to have shared dispositive power over 1,374,000 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 727,100 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 01/07/2002 100 677 open mkt purch DGF 01/07/2002 600 4065 open mkt purch Sub-advised acct 01/07/2002 100 677 open mkt purch RS acct 01/07/2002 100 677 open mkt purch Sub-advised acct 01/08/2002 5200 33800 open mkt purch Sub-advised acct 01/08/2002 1000 6500 open mkt purch Sep acct 01/08/2002 2600 16900 open mkt purch Sub-advised acct 01/08/2002 1000 6500 open mkt purch Sub-advised acct 01/08/2002 1600 10400 open mkt purch DGF 01/08/2002 25600 166400 open mkt purch Sub-advised acct 01/08/2002 7800 50700 open mkt purch RS acct 01/08/2002 5200 33800 open mkt purch DGF 01/22/2002 10100 60499 open mkt purch Sub-advised acct 01/22/2002 2100 12579 open mkt purch RS acct 01/22/2002 6400 38336 open mkt purch DGF 01/23/2002 7000 42350 open mkt purch DGF 01/24/2002 60000 360000 open mkt purch DGF 01/28/2002 1500 10350 open mkt purch DGF 01/29/2002 23500 159889 open mkt purch DGF 02/06/2002 3500 21512 open mkt purch Sub-advised acct 02/07/2002 100 632 open mkt purch DGF 02/07/2002 1500 9477 open mkt purch Sub-advised acct 02/08/2002 100 626 open mkt purch DGF 02/08/2002 1500 9390 open mkt purch Sub-advised acct 02/14/2002 500 2915 open mkt purch DGF 02/14/2002 4500 26235 open mkt purch Sub-advised acct 02/15/2002 100 565 open mkt purch DGF 02/15/2002 1400 7910 open mkt purch Sub-advised acct 02/25/2002 100 589 open mkt purch Sub-advised acct 02/25/2002 800 4712 open mkt purch DGF 02/25/2002 7600 44764 open mkt purch Sub-advised acct 02/26/2002 900 5381 open mkt purch Sub-advised acct 02/26/2002 200 1196 open mkt purch Sub-advised acct 02/26/2002 300 1794 open mkt purch Sub-advised acct 02/26/2002 1500 8969 open mkt purch Sub-advised acct 02/27/2002 900 5422 open mkt purch Sub-advised acct 02/27/2002 100 602 open mkt purch Sub-advised acct 02/27/2002 300 1807 open mkt purch Sub-advised acct 02/27/2002 1700 10242 open mkt purch Sub-advised acct 02/28/2002 900 5400 open mkt purch Sub-advised acct 02/28/2002 200 1200 open mkt purch Sub-advised acct 02/28/2002 400 2400 open mkt purch Sub-advised acct 02/28/2002 1800 10800 open mkt purch Sub-advised acct 03/01/2002 7000 42000 open mkt purch Sub-advised acct 03/01/2002 500 3000 open mkt purch Sub-advised acct 03/01/2002 1500 9000 open mkt purch Sub-advised acct 03/04/2002 300 1830 open mkt purch Sub-advised acct 03/04/2002 100 610 open mkt purch DGF 03/04/2002 2100 12810 open mkt purch Sub-advised acct 03/05/2002 400 2420 open mkt purch Sub-advised acct 03/05/2002 100 605 open mkt purch DGF 03/05/2002 2500 15125 open mkt purch Sub-advised acct 03/07/2002 400 2476 open mkt purch Sub-advised acct 03/07/2002 100 619 open mkt purch DGF 03/07/2002 2500 15475 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: March 7, 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: March 7, 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