PRESSURE BIOSCIENCES INC PBIO

election_required = True...perly tendered and not properly withdrawn by any "odd lot holder" (as defined below) who: (i) tenders all shares owned (beneficially or of record) by the odd lot holder (tenders of less than all the shares owned will not qualify for this preference); and (ii) completes the section entitled "Odd Lots" in the Letter of Transmittal and, if applicable, in the Notice of Guaranteed Delivery; and •Second, after the purchase of all the shares properly tendered by odd lot holders and subject to the conditional tender procedures described in "Section 9. Conditional Tender Procedures," all other shares properly tendered, on a pro rata basis with appropriate adjustments to...

expiry = 2005-01-26...0,000 SHARES OF COMMON STOCK (INCLUDING THE ASSOCIATED PREFERRED SHARE PURCHASE RIGHTS) AT A PURCHASE PRICE OF $3.50 PER SHARE THE OFFER, PRORATION PERIOD AND YOUR RIGHT TO WITHDRAW SHARES YOU TENDER WILL EXPIRE AT 10:00 A.M., EASTERN STANDARD TIME, ON JANUARY 26, 2005, UNLESS THE OFFER IS EXTENDED. WE MAY EXTEND THE OFFER PERIOD AT ANY TIME. INTRODUCTION Pressure BioSciences, Inc., a Massachusetts corporation formerly known as Boston Biomedica, Inc. (the "Company" or "Pressure BioSciences"), is offering...

listed = True...your broker or bank if you will be charged a fee to tender your shares. We will pay all fees and expenses of Computershare Trust Company, Inc., which is acting as depositary (the "Depositary"), incurred in connection with the Offer. Our shares of common stock are traded on the Nasdaq National Market under the ticker symbol "PBIO". On December 20, 2004, the last day the shares traded on the Nasdaq National Market before the printing of this Offer to Purchase, the closing price of the shares as quoted on the Nasdaq National Market was $3.07 per share. We urge you to obtain current market quotations for the shares. Our board of directors, based on t...

mechanism = FIXED...IT 99(A)(1)(A) QuickLinks -- Click here to rapidly navigate through this document Exhibit (a)(1)(A) OFFER TO PURCHASE FOR CASH BY PRESSURE BIOSCIENCES, INC. UP TO 5,500,000 SHARES OF COMMON STOCK (INCLUDING THE ASSOCIATED PREFERRED SHARE PURCHASE RIGHTS) AT A PURCHASE PRICE OF $3.50 PER SHARE THE OFFER, PRORATION PERIOD AND YOUR RIGHT TO WITHDRAW SHARES YOU TENDER WILL EXPIRE AT 10:00 A.M., EASTERN STANDARD TIME, ON JANUARY 26, 2005, UNLESS THE OFFER IS EXTENDED. WE MAY EXTEND THE OFFER PERIOD AT ANY TIME. INTRODUCTION Pressure BioSciences, Inc., a Massachusetts corporation formerly known as Boston Biomedica, Inc. (the "Compa...

must_tender_all = True...fer may not be purchased. If more than 5,500,000 shares are properly tendered and not properly withdrawn, we will purchase shares based on the following order of priority: • First, we will purchase shares from all holders of "odd lots" of less than 100 shares who properly tender all of their shares. • Second, we will purchase shares from all other stockholders who properly tender shares, on a pro rata basis, subject to the conditional tender provisions described in Section 9. As a result, we will purchase the same percentage of shares tendered from each tendering stockholder in this second category. We will announce this proration...

price = USD 2.6-3.08...Richard T. Schumacher currently owns 637,907 shares of common stock and options to acquire 130,000 shares of common stock that are currently exercisable at exercise prices ranging from $2.60 to $3.08 per share. Mr. Schumacher has advised us that he will tender up to 130,000 of his shares in the Offer and will use the proceeds from the sale of such shares to repay a substantial portion of his indebtedness to a financial instit...

threshold = 100...ered by all stockholders to as close to, but not greater than 5,500,000 shares. Odd Lots. For purposes of the Offer, the term "odd lots" means all shares properly tendered before the Expiration Date and not properly withdrawn by any person, referred to as an "odd lot holder," who owns, beneficially or of record, a total of fewer than 100 shares and certifies to that fact in the "Odd Lots" box on the Letter of Transmittal and, if applicable, on the Notice of Guaranteed Delivery. As set forth above, odd lots will be accepted for payment before proration, if any, of the purchase of other tendered shares. To qualify for this preference, an odd lot holder must tender all shares owne...

txn_type = TENDER_OFFEREX-99.(A)(1)(A) 2 a2149058zex-99_a1a.htm EXHIBIT 99(A)(1)(A) QuickLinks -- Click here to rapidly navigate through this document Exhibit (a)(1)(A) OFFER TO PURCHASE FOR CASH BY PRESSURE BIOSCIENCES, INC. UP TO 5,500,000 SHARES OF COMMON STOCK (INCLUDING THE ASSOCIATED PREFERRED SHARE PURCHASE RIGHTS) AT A PURCHASE PRICE OF $3.50 PER SHARE THE OFFER, PRORATION PERIOD AND YOUR RIGHT TO WITHDRAW SHARES YOU TENDER WILL EXPIRE AT 10:00 A.M., EASTERN STANDARD TIME, ON JANUARY 26, 2005, UNLESS THE OFFER IS...