Stock-2d. Tandem Stock Decoder. HP/HPE Alumni

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Step 1. Stock Overview 2. Stock Decoder 3. Where's my stock? 4. Check for lost stock 5. Other issues 6. Cost Basis 7. Taxes Map of Stock Pages

2d. Tandem Stock Decoder. (HPAA stock decoders: Compaq DEC HP Tandem )

Part of our step-by-step Stock Recovery Process to find and protect your stock. If you haven't gone through the previous steps to determine which of seven HP-related stocks you should have, start here: Employee Stock

(Updated Apr 18, 2021.) Website operated by former employees. Comments welcome. Do not send personal information to us. info-stock@hpalumni.org

Also see this page if you ever worked for Tandem

This topic was covered in the now-closed Tandem Alumni Forum (operated by former Tandem employees, not by the HPAA.)

Check for unclaimed TDM stock or dividends: Delaware

HP Inc. is the legal successor to the companies acquired by Compaq. Stockholder information and contact instructions: HPInc Investor Relations Site

Compare the date when you first acquired Tandem stock with the dates in the left-hand column. If you later acquired Compaq shares while a Compaq employee, those batches of stock should be tracked separately -- see our Compaq Stock Decoder.

For links and more detail on HP stock history, see our HP Stock Decoder

Note: Stock plan administrators and stock brokerages vary (sometimes dramatically) in how they make gain/loss and cost basis calculations and in what they report to the IRS. Each of the 236 NYSE member firms -- and others around the world -- is expected to read SEC filings, analyze Corporate Action Notices, and update the records they maintain on behalf of their clients.

The black entries in the table below are from the online system available to customers of one broker, Charles Schwab & Co. The HPAA member who contributed this table did not hold this stock before 1987.

The blue entries were developed from reports by members of the Tandem Alumni Forum and contemporaneous news stories. Given Tandem's high growth rate, there must have been earlier stock splits. (EDGAR, the SEC's searchable online database, includes SEC filings from some companies back to 1994 and from all companies only back to May 1996.)

This table only covers HP/HPE stock events through 04/30/2019. See our HP Stock Decoder for subsequent stock events.

Corporate Action Summary [Note: This is how broker Charles Schwab handled each event -- your broker may have handled some of them differently.]
Effective Date	Corp Action	Target Symbol	Target CUSIP	Target Security Name	Rate	Cash	New Symbol	New CUSIP	New Security Name
07/01/1980	Stock Split	TDM		TANDEM COMPUTERS INC	2:1
07/01/1981	Stock Split	TDM		TANDEM COMPUTERS INC	3:1
06/15/1987	Stock Split	TDM	875370108	TANDEM COMPUTERS INC	2:1
09/02/1997	Merger	TDM	875370108	TANDEM COMPUTERS INC	0.525		CPQ	204493100	COMPAQ COMPUTER CORP
01/21/1998	Stock Split	CPQ	204493100	COMPAQ COMPUTER CORP	2:1
05/06/2002	Merger	CPQ	204493100	COMPAQ COMPUTER CORP	0.6325		HWP	428236103	HEWLETT PACKARD CO
05/06/2002	Name/Symbol Change	HWP	428236103	HEWLETT PACKARD CO			HPQ	428236103	HEWLETT PACKARD CO
11/02/2015	Distrib/Spin-Off	HPQ	428236103	HEWLETT PACKARD CO	1		HPE	42824C109	HEWLETT PACKARD ENTERPRISE
11/02/2015	Exchange	HPQ	428236103	HEWLETT PACKARD CO	1		HPQ	40434L105	HPInc
04/03/2017	Distrib/Spin-Off	HPE	42824C109	HEWLETT PACKARD ENTERPRISE	0.0859		DXC	23355L106	DXC TECHNOLOGY CO
09/01/2017	Distrib/Spin-Off	HPE	42824C109	HEWLETT PACKARD ENTERPRISE	1		42824C992	42824C992	SEATTLE SPIN CO
09/01/2017	Merger	42824C992	42824C992	SEATTLE SPIN CO	0.1373		MFGP	594837304	MICRO FOCUS INTERNATIONAL P
06/01/2018	Distrib/Spin-Off	DXC	23355L106	DXC TECHNOLOGY CO	0.5		PRSP	715347100	PERSPECTA INC
04/30/2019	Reverse Stock Split	MFGP	594837304	MICRO FOCUS INTERNATIONAL P	185:223		MFGP	594837403	MICRO FOCUS INTERNATIONAL P

If you were formerly a regular, direct employee of HP or HPE -- or are in the process of leaving -- join the HP Alumni Association. Membership is also open to heirs with HP-related stock and to those receiving company benefits -- spouses, partners, dependents, DEC and EDS retirees. No charge, thanks to HPAA members.

As financial, legal, and personal advice must be tailored to the specific circumstances of each case, and finances and laws are constantly changing, nothing provided here should be used as a substitute for the personalized advice of competent financial, legal, and personal advisors.