NATIONAL SURGERY CENTERS INC \DE\

Quarterly Report for period ending 1998-03-31

Annual Report for period ending 1997-12-31

Quarterly Report for period ending 1997-09-30

Quarterly Report for period ending 1997-06-30

Quarterly Report for period ending 1997-03-31

Annual Report for period ending 1996-12-31

Quarterly Report for period ending 1996-09-30

Current report filing

Notice of termination of registration of a class of securities under Section 12(g)

Form for registration of a class of securities pursuant to Section 12(g)

Form for the registration / listing of a class of securities on a national securities exchange pursuant to Section 12(b)

PILGRIM BAXTER & ASSOCIATES LTD /DE/ /ADV: Major Shareholders

EQUITABLE COMPANIES INC: Major Shareholders

PUTNAM INVESTMENTS INC: Major Shareholders

BEAR STEARNS & CO INC /NY/: Major Shareholders

BEAR STEARNS & CO INC /NY/: Major Shareholders

PUTNAM INVESTMENTS INC: Major Shareholders

PILGRIM BAXTER & ASSOCIATES LTD /DE/ /ADV: Major Shareholders

PILGRIM BAXTER & ASSOCIATES LTD /DE/ /ADV: Major Shareholders

PILGRIM BAXTER & ASSOCIATES LTD /DE/ /ADV: Major Shareholders

EQUITABLE COMPANIES INC: Major Shareholders

Initial registration statement for securities to be offered to employees pursuant to employee benefit plans

Prospectus filed pursuant to Rule 424(b)(4)

General form of registration statement for all companies including face-amount certificate companies

Definitive additional proxy soliciting materials including Rule 14(a)(12) material. Note: Submission type DEFA14A can be filed as part of Form 8-K. For filers subject to 8-K filing requirements, we recommend the use of the 8-K combined form type as the easiest method for fulfilling your filing requirement for both forms.

Definitive proxy statements

Definitive proxy statements

Preliminary proxy statement not related to a contested matter or merger/acquisition