Nasdaq National Market System (Nasdaq/NMS) Additions, Changes, and Deletions As of May 13, 1991

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Symbol

Company

Entry Date

SOES Execution Level

PNRL

Penril DataComm Networks, Inc.

4/15/91

1000

BTRE

Brooktree Corporation

4/17/91

1000

CVTY

Coventry Corporation

4/17/91

1000

PLAT

PLATINUM technology, inc.

4/18/91

500

LESL

Leslie's Poolmart

4/19/91

1000

UAHC

United American Healthcare Corporation

4/23/91

1000

OUTL

Outlook Graphics Corp.

4/24/91

1000

SERA

Sierra Semiconductor Corporation

4/24/91

1000

CEPH

Cephalon, Inc.

4/25/91

500

IHSI

Integrated Health Services, Inc.

4/25/91

1000

ROSS

Ross Systems, Inc.

4/26/91

500

XPLX

Xyplex, Inc.

4/26/91

1000

CCLRB

Commerce Clearing House, Inc. (Cl B)

4/29/91

1000

QHRI

Quantum Health Resources, Inc.

4/30/91

1000

BSMT

Filene's Basement Corp.

5/1/91

1000

AISX

Applied Immune Sciences, Inc.

5/2/91

1000

HOME

Homedco Group, Inc.

5/2/91

200

CHPM

Chipcom Corporation

5/3/91

1000

BMDC

Biomedical Dynamics Corporation

5/7/91

1000

BIOP

Bioplasty, Inc.

5/7/91

1000

MTEC

Machine Technology, Inc.

5/7/91

1000

MYLX

Mylex Corporation

5/7/91

1000

OSGI

OTRA Securities Group, Inc.

5/7/91

1000

RHMO

Ramsey-HMO, Inc.

5/7/91

1000

SNRS

Sunrise Technologies, Inc.

5/7/91

1000

MEDI

Medlmmune, Inc.

5/8/91

1000

HILO

Hi-Lo Automotive, Inc.

5/9/91

1000

OESI

OESI Power Corporation

5/10/91

1000

New/Old Symbol

New/Old Security

Date of Change

CAREW/CAREW

Care Group, Inc. (The) (4/24/92 Wts)/Care Group, Inc. (The) (4/24/91 Wts)

4/17/91

UTLX/MOLE

UTILX Corporation/FlowMole Corporation

4/19/91

IPPIF/IHEIF

Interprovincial Pipe Line Inc./Interhome Energy, Inc.

5/1/91

MTEL/MTTL

Mobile Telecommunication Technologies Corp./Mobile Telecommunication Technologies Corp.

5/1/91

ISLI/ISLI

INTERSOLV/Sage Software, Inc. (INTERSOLV)

5/6/91

CSFCB/CSFCB CSF

Holdings, Inc. (Cl B)/Citizens Savings Financial Corporation (Cl B)

5/9/91

STLG/WLBK

Sterling Bancshares Corporation/Waltham Corporation (The)

5/13/91

Symbol

Security

Date

ATTWY

Attwoods pic

4/12/91

FEXC

First Executive Corporation

4/16/91

FEXCP

First Executive Corporation (Ser. E Dep. Pfd.)

4/16/91

FEXCO

First Executive Corporation (Ser. F Dep. Pfd.)

4/16/91

FEXCM

First Executive Corporation (Ser. G Dep. Pfd.)

4/16/91

FEXCN

First Executive Corporation (Ser. H Dep. Pfd.)

4/16/91

UBKS

United Banks of Colorado, Inc.

4/22/91

BNHI

Bancorp Hawaii, Inc.

4/24/91

NECC

Critical Care America, Inc.

4/24/91

NHLI

National Health Laboratories, Inc.

4/24/91

EBMI

E & B Marine Inc.

4/25/91

FFSD

First Federal Savings Bank

4/25/91.

SIZZ

Sizzler Restaurants International, Inc.

4/29/91

BIOW

Banks of Iowa, Inc.

4/30/91

DPHZ

DATAPHAZ, Inc.

4/30/91

SOBK

Southern Bankshares Inc.

5/1/91

ACOM

Astrocom Corporation

5/1/91

MFTN

Metropolitan Federal Bank, a federal savings bank

5/2/91

PPSA

Prospect Park Financial Corporation

5/2/91

JHSL

John Hanson Bancorp, Inc.

5/8/91

ENST

Enstar Group, Inc. (The)

5/9/91

HLCO

Healthco International, Inc.

5/9/91