Immunicon Corporation Common Stock Certificate
This document certifies that the named individual or entity is the owner of fully paid and nonassessable shares of common stock in Immunicon Corporation, a Delaware company. The certificate allows the holder to transfer ownership of the shares by proper endorsement and registration with the transfer agent, StockTrans, Inc. It also outlines procedures for assignment, signature guarantees, and replacement if the certificate is lost or destroyed. The certificate is not valid until countersigned and registered by the transfer agent.
QuickLinks -- Click here to rapidly navigate through this document
Exhibit 4.1
NUMBER IM | IMMUNICON CORPORATION INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE | SHARES | ||
| COMMON STOCK | CUSIP 54260A 10 7 SEE REVERSE FOR CERTAIN DEFINITIONS | |||
THIS CERTIFIES THAT
is the owner of
FULLY PAID AND NONASSESSABLE SHARES OF COMMON STOCK OF, $.001 PAR VALUE PER SHARE, OF
IMMUNICON CORPORATION
transferable on the books of the Corporation by the holder hereof in person or by Attorney upon surrender of this Certificate properly endorsed. This Certificate is not valid until countersigned and registered by the Transfer Agent and Registrar.
WITNESS the facsimile seal of the Corporation and the facsimile signatures of its duly authorized officers.
| Dated: /s/ James G. Murphy SENIOR VICE PRESIDENT, FINANCE AND ADMINISTRATION, CHIEF FINANCIAL OFFICER AND TREASURER | IMMUNICON CORPORATION CORPORATE SEAL 1983 | /s/ Edward L. Erickson CHAIRMAN, PRESIDENT AND CHIEF EXECUTIVE OFFICER | ||
| COUNTERSIGNED AND REGISTERED: |
| STOCKTRANS, INC. 44 W. LANCASTER AVENUE ARDMORE, PA 19003 |
| TRANSFER AGENT AND REGISTRAR |
| BY |
| AUTHORIZED OFFICER |
The Corporation will furnish without charge to each stockholder who so requests the powers, designations, preferences and relative, participating optional, or other special rights of each class of stock or series thereof of the Corporation, and the qualifications, limitations or restrictions of such preferences and/or rights. Such request may be made to the Corporation or the transfer agent.
The following abbreviations, when used in the inscription on the face of this Certificate, shall be construed as though they were written out in full according to applicable laws or regulations:
TEN COM | — | as tenants in common | UNIF GIFT MIN ACT— | Custodian | UNIF TRANS MIN ACT— | Custodian | ||||||||||
| (Cust) | (Minor) | (Cust) | (Minor) | |||||||||||||
| TEN ENT | — | as tenants by the entireties | under Uniform Gifts to Minors | under Uniform Gifts to Minors | ||||||||||||
| JT TEN | — | as joint tenants with right of survivorship and not as tenants in common | Act (State) | Act (State) | ||||||||||||
Additional abbreviations may also be used though not in the above list.
FOR VALUE RECEIVED, hereby sell, assign and transfer unto
| PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE |
| Please print or typewrite name and address including postal zip code of assignee |
| of the common shares represented by the within Certificate and do hereby irrevocably constitute and appoint |
Attorney |
to transfer the said shares on the books of the within named Corporation with full power of substitution in the premises.
| Dated |
| X | ||
| X | ||
| NOTICE: | THE SIGNATURE(S) TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME(S) AS WRITTEN UPON THE FACE OF THE CERTIFICATE IN EVERY PARTICULAR, WITHOUT ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATEVER. | |
| SIGNATURE(S) GUARANTEED: | THE SIGNATURE(S) SHOULD BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM), PURSUANT TO S.E.C. RULE 17Ad-15. ALTERNATIVELY, A DULY NOTARIZED SIGNATURE WILL SUFFICE. |
KEEP THIS CERTIFICATE IN A SAFE PLACE. IF IT IS LOST, STOLEN, MUTILATED OR DESTROYED, THE CORPORATION MAY REQUIRE A BOND OF INDEMNITY AS A CONDITION TO THE ISSUANCE OF A REPLACEMENT CERTIFICATE.
QuickLinks
- Exhibit 4.1
