FMR CORP
SC 13D/A, 1999-02-25
Previous: FMR CORP, SC 13D, 1999-02-25
Next: FIRST INVESTORS INSURED TAX EXEMPT FUND INC, NSAR-B, 1999-02-25


  
 
 
SCHEDULE 13D  
  
Amendment No. 1  
Sepracor Incorporated  
common stock   
Cusip # 817315104  
 
 
Cusip # 817315104  
Item 1:	Reporting Person - FMR Corp. - (Tax ID:  04-2507163)  
Item 4:	PF  
Item 6:	Commonwealth of Massachusetts  
Item 7:	64,400  
Item 8:	None  
Item 9:	3,198,544  
Item 10:	None  
Item 11:	3,698,854  
Item 13:	12.95%  
Item 14:	HC  
 
 
PREAMBLE  
  
	The filing of this Schedule 13D is not, and should not be  
deemed to be, an admission that such Schedule 13D is required to  
be filed.  See the discussion under Item 2.  
  
Item 1.	Security and Issuer.  
  
	This statement relates to shares of the common stock, $0.01  
par value (the "Shares") of Sepracor Incorporated, a Delaware  
corporation (the "Company").  The principal executive offices of  
the Company are located at 111 Locke Drive, Marlborough, MA   
01757.  
  
Item 2.	Identity and Background.  
  
	Item 2 is amended as follows:  
  
	This statement is being filed by FMR Corp., a Massachusetts  
Corporation ("FMR").  A separate Schedule 13D is being filed by  
Fidelity International Limited, a Bermuda joint stock company  
incorporated for an unlimited duration by private act of the  
Bermuda legislature ("FIL").  FMR is a holding company one of  
whose principal assets is the capital stock of a wholly-owned  
subsidiary, Fidelity Management & Research Company ("Fidelity"),  
which is also a Massachusetts corporation.  Fidelity is an  
investment advisor which is registered under Section 203 of the  
Investment Advisors Act of 1940 and which provides investment  
advisory services to more than 30 investment companies which are  
registered under Section 8 of the Investment Company Act of 1940  
and serves as investment advisor to certain other funds which are  
generally offered to limited groups of investors (the "Fidelity  
Funds").  Fidelity Management Trust Company ("FMTC"), a wholly- 
owned subsidiary of FMR Corp. and a bank as defined in Section  
3(a)(6) of the Securities Exchange Act of 1934, serves as trustee  
or managing agent for various private investment accounts,  
primarily employee benefit plans and serves as investment adviser  
to certain other funds which are generally offered to limited  
groups of investors (the "Accounts").  Various directly or  
indirectly held subsidiaries of FMR are also engaged in  
investment management, venture capital asset management,  
securities brokerage, transfer and shareholder servicing and real  
estate development.  The principal offices of FMR, Fidelity, and  
FMTC are located at 82 Devonshire Street, Boston, Massachusetts  
02109.  
  
	FIL is an investment adviser which provides investment  
advisory and management services to a number of non-U.S.  
investment companies or instrument trusts (the "International  
Funds") and certain institutional investors.  Prior to June 30,  
1980, FIL was a majority-owned subsidiary of Fidelity.  On that  
date, the shares of FIL held by Fidelity were distributed, as a  
dividend, to the shareholders of FMR.  FIL currently operates as  
an entity independent of FMR and Fidelity, with certain common  
shareholders.  The International Funds and FIL's other clients,  
with the exception of Fidelity and an affiliate of Fidelity, are  
non-U.S. entities.  Various foreign-based subsidiaries of FIL are  
also engaged in investment management.  The principal office of  
FIL is located at Pembroke Hall, 42 Crow Lane, Hamilton, Bermuda.  
  
	Members of the Edward C. Johnson 3d family are the  
predominant owners of Class B shares of common stock of FMR  
representing approximately 49% of the voting power of FMR.  Mr.  
Johnson 3d owns 12.0% and Abigail Johnson owns 24.5% of the  
aggregate outstanding voting stock of FMR.  Mr. Johnson 3d is the  
Chairman of FMR.  The Johnson family group and all other Class B  
shareholders have entered into a shareholders' voting agreement  
under which all Class B shares will be voted in accordance with  
the majority vote of Class B shares.  Accordingly, through their  
ownership of voting common stock and the execution of the  
shareholders' voting agreement, members of the Johnson family may  
be deemed, under the Investment Company Act of 1940, to form a  
controlling group with respect to FMR.  The business address and  
principal occupation of Mr. Johnson 3d is set forth in Schedule A  
hereto.  
  
	In addition, a partnership controlled by Mr. Johnson and  
members of his family own shares of FIL voting stock with the  
right to cast approximately 47.22% of the total votes which may  
be cast by all holders of FIL voting stock.  Mr. Johnson 3d is  
Chairman of FMR and FIL.  FMR and FIL are separate and  
independent corporate entities.  FMR and FIL are managed  
independently and their boards of Directors are generally  
composed of different individuals.  Their investment decisions  
are made independently, and clients are different organizations.   
The business address and principal occupation of Mr. Johnson 3d  
is set forth in Schedule A hereto.  
  
	The Shares to which this statement relates are owned  
directly by twenty-one of the Fidelity Funds, sixteen of the  
Accounts, and by Fidelity International Limited, through its  
subsidiaries and affiliates.  
  
	FMR and FIL are of the view that they are not acting as a  
"group" for purposes of Section 13(d) under the Securities  
Exchange Act of 1934 (the "1934 Act") and that they are not  
otherwise required to attribute to each other the "beneficial  
ownership" of securities "beneficially owned" by the other  
corporation within the meaning of Rule 13d-3 promulgated under  
the 1934 Act.  Therefore, they are of the view that the Shares  
held by the other corporations need not be aggregated for  
purposes of Section 13(d).  However, FMR is making this filing on  
a voluntary basis as if all of the Shares are beneficially owned  
by FMR and FIL on a joint basis.  
  
	The name, residence or business address, principal  
occupation or employment and citizenship of each of the executive  
officers and directors of FMR are set forth in Schedule A hereto.  
  
	Within the past five years, none of the persons named in  
this Item 2 or listed on Schedule A has been convicted in any  
criminal proceeding (excluding traffic violations or similar  
misdemeanors) or has been a party to any civil proceeding and as  
a result thereof was or is subject to any judgment, decree or  
final order enjoining future violations of, or prohibiting or  
mandating activities subject to federal or state securities laws  
or finding any violations with respect to such laws.  
  
Item 3.	Source and Amount of Funds or Other Consideration.  
  
	Item 3 is amended as follows:  
  
	The Fidelity Funds own 3,128,344 Shares (assuming conversion  
of all convertibles held) the cost of which is $228,248,528.  The  
Fidelity Funds used their own assets in making such purchase and  
no part of the purchase price is represented by borrowed funds.   
The attached Schedule B sets forth Shares purchased and/or sold  
since January 28, 1999.  
  
	The Accounts of FMTC own 70,200 Shares the cost of which is  
$3,995,983.  The Accounts used their own assets in making such  
purchase and no part of the purchase price is represented by  
borrowed funds.  The attached Schedule B sets forth Shares  
purchased and/or sold since January 28, 1999.  
  
	The International Funds own 500,310 Shares the cost of which  
is $269,017,719.  The International Funds and accounts used their  
own assets in making such purchase and no part of the purchase  
price is represented by borrowed funds.  
  
Item 4.	Purpose of Transaction.  
  
	Item 4 is amended as follows:  
  
	The purpose of Fidelity and FMTC in having the Fidelity  
Funds and the Accounts purchase Shares (see Item 5 below) is to  
acquire an equity interest in the Company in pursuit of specified  
investment objectives established by the Board of Trustees of the  
Fidelity Funds and by the investors in the Accounts.  
  
	Fidelity and FMTC, respectively, may continue to have the  
Fidelity Funds and the Accounts purchase Shares subject to a  
number of factors, including, among others, the availability of  
Shares of sale at what they consider to be reasonable prices and  
other investment opportunities that may be available to the  
Fidelity Funds and Accounts.  
  
	Fidelity and FMTC, respectively, intend to review  
continuously the equity position of the Fidelity Funds and  
Accounts in the Company.  Depending upon future evaluations of  
the business prospects of the Company and upon other  
developments, including, but not limited to, general economic and  
business conditions and money market and stock market conditions,  
Fidelity may determine to cease making additional purchases of  
Shares or to increase or decrease the equity interest in the  
Company by acquiring additional Shares, or by disposing of all or  
a portion of the Shares.  
  
	Neither Fidelity nor FMTC has any present plan or proposal  
which relates to or would result in (i) an extraordinary  
corporate transaction, such as a merger, reorganization,  
liquidation, or sale of transfer of a material amount of assets  
involving the Company or any of its subsidiaries, (ii) any change  
in the Company's present Board of Directors or management, (iii)  
any material changes in the Company's present capitalization or  
dividend policy or any other material change in the Company's  
business or corporate structure, (iv) any change in the Company's  
charter or by-laws, or (v) the Company's common stock becoming  
eligible for termination of its registration pursuant to Section  
12(g)(4) of the 1934 Act.  
  
Item 5.	Interest in Securities of Issuer.  
  
	Item 5 is amended as follows:  
  
	Although Item 5 assumes that FMR, Fidelity, FMTC, and FIL  
beneficially own all 3,698,854 Shares, reference is made to Item  
2 for a disclaimer of beneficial ownership with respect to the  
securities which are "beneficially owned" by the other  
corporations.  
  
	(a)	FMR beneficially owns, through Fidelity, as investment  
advisor to the Fidelity Funds, 3,128,344 Shares, or approximately  
10.95% of the outstanding Shares of the Company, and through  
FMTC, the managing agent for the Accounts, 70,200 Shares, or  
approximately 0.25% of the outstanding Shares of the Company.   
The number of Shares held by the Fidelity Funds includes 56,260  
Shares of common stock resulting from the assumed conversion of  
$2,665,000 principal amount of 6.25% CSD 2/15/05 144A (21.111  
shares of common stock for each $1000 principal amount of the  
debenture), and 8,444 Shares of common stock resulting from the  
assumed conversion of $400,000 principal amount of 6.25% CSD  
2/15/05 (21.111 shares of common stock for each $1000 principal  
amount of the debenture), and 40,040 Shares of common stock  
resulting from the assumed conversion of $5,000,000 principal  
amount of 7% CSD 12/15/05 144A (8.008 shares of common stock for  
each $1000 principal amount of the debenture).  FIL beneficially  
owns, as investment advisor to the International Funds, 500,310  
Shares, or approximately 1.75% of the outstanding Shares of the  
Company.  Neither FMR, Fidelity, FMTC, nor any of its affiliates  
nor, to the best knowledge of FMR, any of the persons named in  
Schedule A hereto, beneficially owns any other Shares.  The  
combined holdings of FMR, Fidelity, FMTC, and FIL are 3,698,854  
Shares, or approximately 12.95% of the outstanding Shares of the  
Company.  
  
	(b)	FMR, through is control of Fidelity, investment advisor  
to the Fidelity Funds, and the Funds each has sole power to  
dispose of the Shares.  Neither FMR nor Mr. Johnson has the sole  
power to vote or direct the voting of the 3,128,344 Shares owned  
directly by the Fidelity Funds, which power resides with the  
Funds' Boards of Trustees.  Fidelity carries out the voting of  
the Shares under written guidelines established by the Funds'  
Board of Trustees.  FMR, through its control of FMTC, investment  
manager to the Accounts, and the Accounts each has sole  
dispositive power over 70,200 Shares and sole power to vote or to  
direct the voting of 64,400 Shares, and no power to vote or to  
direct the voting of 5,800 Shares owned by the Accounts.    
  
	(c)	Except as set forth in Schedule B, neither FMR, or any  
of its affiliates, nor, to the best knowledge of FMR, any of the  
persons named in Schedule A hereto has effected any transaction  
in Shares during the past sixty (60) days.  
  
Item 6.	Contract, Arrangements, Understandings or Relationships  
With Respect to Securities of the Issuer.  
  
	Neither FMR nor any of its affiliates nor, to the best  
knowledge of FMR, any of the persons named in Schedule A hereto  
has any joint venture, finder's fee, or other contract or  
arrangement with any person with respect to any securities of the  
Company.  
  
	The Funds and Accounts may from time to time own debt  
securities issued by the Company or its direct or indirect  
subsidiaries, and may from time to time purchase and/or sell such  
debt securities.  
  
Item 7.	Material to be Filed as Exhibits.  
  
	Not Applicable.  
  
	This statement speaks as of its date, and no inference  
should be drawn that no change has occurred in the facts set  
forth herein after the date hereof.  
  
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.  
  
						FMR Corp.  
  
  
  
DATE:	February 23, 1999	By:	/s/Eric D.  
Roiter			  
	Eric D. Roiter  
	V.P. & General Counsel - FMR Co. 
Duly authorized under Powers of  
Attorney dated December 30,  
1997, by and on behalf of FMR  
Corp. and its direct and  
indirect subsidiaries  
  
 
 
SCHEDULE A  
  
	The name and present principal occupation or employment of  
each executive officer and director of FMR Corp. are set forth  
below.  The business address of each person is 82 Devonshire  
Street, Boston, Massachusetts 02109, and the address of the  
corporation or organization in which such employment is conducted  
is the same as his business address.  All of the persons listed  
below are U.S. citizens.  
  
	POSITION WITH	PRINCIPAL  
NAME	FMR CORP.	OCCUPATION  
  
Edward C. Johnson 3d	CEO, Director & 
	Director & Chairman   
Chairman of the	of the Board FMR Co.   
Board FMR Corp.	FMR (Far East) Inc.  
		FMR (UK) Inc. & FIL.  
  
J. Gary Burkhead	Director and Vice Chairman	Director  
FMTC			of FMR Corp. 
	Institutional Services Co.  
		President, FIIS Co.  
Inc.		  
  
James C. Curvey	Director and Vice Chairman,	President  
and Chief Operating 		of FMR Corp. 
	Officer, FMR  
  
William L. Byrnes	Director, FMR Corp.	Director, Fidelity  
International   
	Ltd.  
  
Abigail P. Johnson	Director, FMR Corp.	Director, Fidelity  
Management  
		Trust Company;  
Senior Vice  
		President, FMR Co.  
  
George A. Vanderheiden	Director, FMR Corp. 
	Senior Vice President, Fidelity 		 
	Management & Research 		 
	Company; Senior Vice   
		President, Fidelity  
Management  
		Trust Company  
  
Stephen P. Jonas	Executive Vice President, 	Executive  
Vice President,  
	Chief Financial Officer, FMR	Chief  
Financial Officer, FMR  
	Corp.	Corp.  
  
David C. Weinstein	Executive Vice President,	Executive  
Vice President,   
Administration and 	Administration and  
Government  
Government Affairs, FMR 	Affairs, FMR  
Corp.  
Corp.   
  
 
 
SCHEDULE B  
  
  
Sepracor Incorporated  
  
Seven Fidelity Fund(s) purchased Shares since January 28, 1999 at  
the dates and at the prices set forth below.  The transactions  
were made for cash in open market transactions or with other  
investment companies with the same or an affiliated investment  
advisor.  
  
DATE	SHARES	PRICE  
01/28/99	            2,600 		108.6136  
01/28/99	          52,400 		108.6136  
01/29/99	            5,500 		114.0000  
01/29/99	            2,500 		114.7440  
01/29/99	            1,800 		115.2500  
01/29/99	          20,400 		114.0000  
01/29/99	          50,000 		114.7440  
01/29/99	            8,200 		115.2500  
01/29/99	            4,100 		114.0000  
02/01/99	            3,300 		113.7500  
02/01/99	            1,200 		113.9700  
02/01/99	            1,200 		114.0000  
02/01/99	          18,300 		113.7500  
02/01/99	          21,500 		114.0000  
02/01/99	          23,800 		113.9700  
02/01/99	            3,400 		113.7500  
02/01/99	            2,300 		114.0000  
02/02/99	            1,700 		111.6607  
02/02/99	               500 		111.5000  
02/02/99	            2,400 		111.1250  
02/02/99	               200 		111.6607  
02/02/99	          43,100 		111.1250  
02/02/99	          33,100 		111.6607  
02/02/99	            9,500 		111.5000  
02/02/99	            4,500 		111.1250  
02/03/99	            2,400 		112.4000  
02/03/99	          47,600 		112.4000  
02/04/99	            1,900 		113.0860  
02/04/99	               700 		113.0860  
02/04/99	          36,500 		113.0860  
02/04/99	            1,000 		112.3750  
02/05/99	               400 		109.8750  
02/05/99	               900 		110.1875  
02/05/99	               900 		110.1813  
02/05/99	               300 		110.0000  
02/05/99	            1,100 		109.8750  
02/05/99	            2,800 		110.1875  
02/05/99	            2,800 		110.1813  
02/05/99	               100 		110.0000  
02/05/99	          14,800 		109.8750  
02/05/99	          44,400 		110.1875  
02/05/99	          44,400 		110.1813  
02/05/99	            6,900 		110.0000  
02/05/99	            2,800 		109.8750  
02/08/99	               100 		112.0000  
02/08/99	               100 		106.7500  
02/08/99	               100 		107.0000  
02/08/99	               100 		107.0000  
02/08/99	               100 		106.6250  
02/08/99	               400 		112.0000  
02/08/99	               400 		106.7500  
02/08/99	               700 		107.0000  
02/08/99	               700 		107.0000  
02/08/99	               300 		106.6250  
02/08/99	          12,100 		112.0000  
02/08/99	          12,300 		106.7500  
02/08/99	          20,400 		107.0000  
02/08/99	          18,100 		107.0000  
02/08/99	            9,400 		106.6250  
02/08/99	            2,100 		112.0000  
02/08/99	            2,000 		106.7500  
02/08/99	            3,400 		107.0000  
02/08/99	            3,100 		107.0000  
02/09/99	               200 		108.1250  
02/09/99	          50,000 		108.0000  
02/09/99	          50,000 		107.7875  
02/10/99	          37,500 		109.3958  
02/11/99	          65,000 		115.9639  
02/12/99	          12,500 		117.2500  
02/12/99	          10,000 		117.7656  
02/18/99	            7,800 		128.2813  
02/18/99	            2,200 		128.2813  
 
 
SCHEDULE B  
  
  
Sepracor Incorporated  
  
Eight Fidelity Fund(s) sold Shares since January 28, 1999 at the  
dates and at the prices set forth below.  The transactions were  
made for cash in open market transactions or with other  
investment companies with the same or an affiliated investment  
advisor.  
  
DATE	SHARES	PRICE  
01/29/99	            5,500 	$114.0000  
01/29/99	          20,400 	114.0000  
01/29/99	            1,800 	115.2500  
01/29/99	            8,200 	115.2500  
01/29/99	            4,100 	114.0000  
02/01/99	            3,300 	113.7500  
02/01/99	          21,500 	114.0000  
02/01/99	          18,300 	113.7500  
02/01/99	            1,200 	114.0000  
02/01/99	            3,400 	113.7500  
02/01/99	            2,300 	114.0000  
02/02/99	          43,100 	111.1250  
02/02/99	               500 	111.5000  
02/02/99	            9,500 	111.5000  
02/02/99	            2,400 	111.1250  
02/02/99	            4,500 	111.1250  
02/05/99	               400 	109.8750  
02/05/99	            1,100 	109.8750  
02/05/99	          14,800 	109.8750  
02/05/99	               800 	109.8750  
02/05/99	               900 	110.1875  
02/05/99	            2,800 	110.1875  
02/05/99	          44,400 	110.1875  
02/05/99	            1,900 	110.1875  
02/05/99	            2,800 	109.8750  
02/08/99	               100 	112.0000  
02/08/99	               100 	106.7500  
02/08/99	               100 	107.0000  
02/08/99	               100 	107.0000  
02/08/99	               400 	112.0000  
02/08/99	               400 	106.7500  
02/08/99	               700 	107.0000  
02/08/99	               700 	107.0000  
02/08/99	          12,100 	112.0000  
02/08/99	          12,300 	106.7500  
02/08/99	          20,400 	107.0000  
02/08/99	          18,100 	107.0000  
02/08/99	               300 	112.0000  
02/08/99	               200 	106.7500  
02/08/99	               400 	107.0000  
02/08/99	               400 	107.0000  
02/08/99	            2,200 	107.2500  
02/08/99	            2,100 	112.0000  
02/08/99	            2,000 	106.7500  
02/08/99	            3,400 	107.0000  
02/08/99	            3,100 	107.0000  
02/08/99	               400 	107.2500  
02/09/99	          50,000 	108.0000  
02/12/99	          12,500 	117.2500  
02/12/99	            7,500 	116.4375  
02/17/99	          10,000 	120.0625  
02/18/99	          10,000 	138.0000  
02/19/99	          57,800 	127.4143  
02/19/99	                70 	127.4143  
02/19/99	          50,000 	127.4143  
02/19/99	          92,200 	127.4143  
  
 
 
SCHEDULE B  
  
  
Sepracor Incorporated  
  
One Fidelity Fund(s) purchased Sepracor 7% CSD 12/15/05 144A  
since January 28, 1999 at the dates and at the prices set forth  
below.  The transactions were made for cash in open market  
transactions or with other investment companies with the same or  
an affiliated investment advisor.  
  
	DATE	SHARES	PRICE  
	1/28/99	2,000,000	$110.1250  
	1/29/99	1,000,000	117.7500  
  
 
 
SCHEDULE B  
  
  
Sepracor Incorporated  
  
Four Account(s) purchased Shares since January 28, 1999 at the  
dates and at the prices set forth below.  The transactions were  
made for cash in open market transactions or with other  
investment companies with the same or an affiliated investment  
advisor.  
  
DATE	SHARES	PRICE  
02/01/99	               300 	$114.4690  
02/01/99	            1,400 	114.4690  
02/01/99	            4,100 	114.4690  
02/12/99	            5,000 	115.7500  
02/16/99	               200 	116.8750  
02/19/99	            1,500 	129.3125  
 
 
SCHEDULE B  
  
  
Sepracor Incorporated  
  
Two Account(s) sold Shares since January 28, 1999 at the dates  
and at the prices set forth below.  The transactions were made  
for cash in open market transactions or with other investment  
companies with the same or an affiliated investment advisor.  
  
DATE	SHARES	PRICE  
02/02/99	               300 	$113.0000  
02/09/99	               100 	107.1880  
02/09/99	            1,300 	108.1250  
 


© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission