SC 13D/A 1 0001.txt SCHEDULE 13D, AMENDMENT NUMBER 13 Page 1 of 10 Pages UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 13)* MOTIENT CORPORATION (FKA AMERICAN MOBILE SATELLITE CORPORATION) ----------------------------------------------------- (Name of Issuer) COMMON ----------------------------------------------------- (Title of Class of Securities) 02755R103 ----------------------------------------------------- (CUSIP Number) Linda S. Martinson, Esq. (212) 583-2000 767 Fifth Avenue, 49th Floor, New York, NY 10153 ----------------------------------------------------- (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) JULY 28, 2000 ----------------------------------------------------- (Date of Event which Requires Filing of this Statement) If the filing person has previously filed a statement on Schedule 13G to report the acquisition which is the subject of this Schedule 13D, and is filing this schedule because of Rule 13d-1(b)(3) or (4), check the following box [ ]. Check the following box if a fee is being paid with this statement [ ]. (A fee is not required only if the filing person: (1) has a previous statement on file reporting beneficial ownership of more than five percent of the class of securities described in Item 1; and (2) has filed no amendment subsequent thereto reporting beneficial ownership of five percent or less of such class.) (See Rule 13d-7.) *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). SEC 1746 (12-91) Amendment Number 13 to Schedule 13D (continued) CUSIP No. 02755R103 Page 2 of 10 Pages -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Baron Capital Group, Inc. -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [ ] -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS OO -------------------------------------------------------------------------------- 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(C) OR 2(E) [ ] -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION -------------------------------------------------------------------------------- NUMBER OF 7 SOLE VOTING POWER SHARES 1,325,081 BENEFICIALLY -------------------------------------------------------------- OWNED BY 8 SHARED VOTING POWER EACH 5,591,400 REPORTING -------------------------------------------------------------- PERSON 9 SOLE DISPOSITIVE POWER WITH 1,325,081 -------------------------------------------------------------- 10 SHARED DISPOSITIVE POWER 5,591,400 -------------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 6,916,481 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 12.2% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON* HC, CO -------------------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT Amendment Number 13 to Schedule 13D (continued) CUSIP No. 02755R103 Page 3 of 10 Pages -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON BAMCO, Inc. -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [ ] -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS OO -------------------------------------------------------------------------------- 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(C) OR 2(E) [ ] -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION -------------------------------------------------------------------------------- NUMBER OF 7 SOLE VOTING POWER SHARES BENEFICIALLY -------------------------------------------------------------- OWNED BY 8 SHARED VOTING POWER EACH 4,110,000 REPORTING -------------------------------------------------------------- PERSON 9 SOLE DISPOSITIVE POWER WITH -------------------------------------------------------------- 10 SHARED DISPOSITIVE POWER 4,110,000 -------------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 4,110,000 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 7.3% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON* IA, CO -------------------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT Amendment Number 13 to Schedule 13D (continued) CUSIP No. 02755R103 Page 4 of 10 Pages -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Baron Capital Management, Inc. -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [ ] -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS OO -------------------------------------------------------------------------------- 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(C) OR 2(E) [ ] -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION -------------------------------------------------------------------------------- NUMBER OF 7 SOLE VOTING POWER SHARES 1,325,081 BENEFICIALLY -------------------------------------------------------------- OWNED BY 8 SHARED VOTING POWER EACH 1,481,400 REPORTING -------------------------------------------------------------- PERSON 9 SOLE DISPOSITIVE POWER WITH 1,325,081 -------------------------------------------------------------- 10 SHARED DISPOSITIVE POWER 1,481,400 -------------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,806,481 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 5.0% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON* IA, CO -------------------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT Amendment Number 13 to Schedule 13D (continued) CUSIP No. 02755R103 Page 5 of 10 Pages -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Baron Asset Fund -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [ ] -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS OO -------------------------------------------------------------------------------- 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(C) OR 2(E) [ ] -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION -------------------------------------------------------------------------------- NUMBER OF 7 SOLE VOTING POWER SHARES BENEFICIALLY -------------------------------------------------------------- OWNED BY 8 SHARED VOTING POWER EACH 3,500,000 REPORTING -------------------------------------------------------------- PERSON 9 SOLE DISPOSITIVE POWER WITH -------------------------------------------------------------- 10 SHARED DISPOSITIVE POWER 3,500,000 -------------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 3,500,000 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 6.2% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON* IV, OO -------------------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT Amendment Number 13 to Schedule 13D (continued) CUSIP No. 02755R103 Page 6 of 10 Pages -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Ronald Baron -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [ ] -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS OO -------------------------------------------------------------------------------- 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(C) OR 2(E) [ ] -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION USA -------------------------------------------------------------------------------- NUMBER OF 7 SOLE VOTING POWER SHARES 1,352,464 BENEFICIALLY -------------------------------------------------------------- OWNED BY 8 SHARED VOTING POWER EACH 5,591,400 REPORTING -------------------------------------------------------------- PERSON 9 SOLE DISPOSITIVE POWER WITH 1,352,464 -------------------------------------------------------------- 10 SHARED DISPOSITIVE POWER 5,591,400 -------------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 6,943,864 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 12.3% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON* IN -------------------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT Page 7 of 10 Pages Item 1. Security and Issuer (a) Name of Issuer: Motient Corporation (FKA American Mobile Satellite Corp) (b) Address of Issuer's Principal Executive Offices: 10802 Parkridge Boulevard Reston, VA 22091 (c) Title and Class of Securities: Common Item 2. Identity and Background (a) Name: Baron Capital Group, Inc. ('BCG') BAMCO, Inc. ('BAMCO') Baron Capital Management, Inc. ('BCM') Baron Asset Fund ('BAF') Ronald Baron (b) Business Address: 767 Fifth Avenue New York, NY 10153 (c) Present Principal Employment: BCG: Holding company BAMCO: Investment adviser BCM: Investment adviser BAF: Registered investment company Ronald Baron: President: BCG, BAMCO, BCM; CEO OF BAF 767 Fifth Avenue New York, NY 10153 (d) Record of Convictions: No material change. (e) Record of Civil Proceedings: No material change. (f) Citizenship: No material change. Item 3. Source and Amount of Funds or Other Consideration Ronald Baron owns 27,383 shares of the Issuer directly, paid for with cash for an aggregate purchase price of $513,338. BAMCO directed the purchase of 4,110,000 shares of the Issuer for its investment advisory clients for an aggregate purchase price of $59,839,724. Of those shares, 3,500,000 shares were purchased for the account of BAF, for a total purchase price of $52,086,554. BCM directed the purchase of 1,491,400 shares of the Issuer for its investment advisory clients for an aggregate purchase price of $20,225,739 and 486,800 shares of the Issuer for two investment partnerships for an aggregate purchase price of $3,887,393. All the shares were paid for by cash assets in the respective clients' accounts and/or by margin borrowings pursuant to standard margin agreements. BCM also has warrants for 828,281 shares of common stock. Page 8 of 10 Pages Item 4. Purpose of Transaction No material change. Item 5. Interest in Securities of the Issuer (a) Amount and percentage beneficially owned:*# BCG: 6,916,481 12.2% BAMCO: 4,110,000 7.3% BCM: 2,806,481 5.0% BAF: 3,500,000 6.2% Ronald Baron: 6,943,864 12.3% (b) Number of shares as to which such person has: (i) sole power to vote or direct the vote: BCG: 1,325,081 BAMCO: 0 BCM: 1,325,081 BAF: 0 Ronald Baron: 1,352,464 (ii) shared power to vote or direct the vote: BCG: 5,591,400 BAMCO: 4,110,000 BCM: 1,481,400 BAF: 3,500,000 Ronald Baron: 5,591,400 (iii) sole power to dispose or to direct the disposition: BCG: 1,325,081 BAMCO: 0 BCM: 1,325,081 BAF: 0 Ronald Baron: 1,352,464 (iv) shared power to dispose or direct the disposition: BCG: 5,591,400 BAMCO: 4,110,000 BCM: 1,481,400 BAF: 3,500,000 Ronald Baron: 5,591,400 *Reporting Persons may be deemed to share power to vote and dispose of shares referred to herein as a result of control relationships (BCG and Ronald Baron with respect to all of the shares; BAMCO with respect to the BAF shares) and pursuant to investment advisory relationships with advisory clients. Reporting Persons disclaim beneficial ownership of the shares for which they share power. #includes 828,281 warrants (c) A schedule of transactions effected in the last sixty days is attached hereto. Page 9 of 10 Pages (d) Ownership of More than Five Percent on Behalf of Another Person: No material change. (e) Ownership of Less than Five Percent: Not applicable. Item 6. Contracts, Arrangements, Understandings or Relationships with Respect to Securities of the Issuer The Issuer had previously issued warrants to BCP with respect to the Issuer's common stock. The warrants were amended to change the exercise price to $6.25 per share. Item 7. Material to be Filed as Exhibits Exhibit 99 - 60 days of trading 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. Date: August 7, 2000 Baron Capital Group, Inc., BAMCO, Inc., Baron Capital Management, Inc. and Baron Assert Fund By: /s/ Ronald Baron _______________________________________ Ronald Baron, Chairman and CEO Ronald Baron, Individually By: /s/ Ronald Baron _______________________________________ Ronald Baron