Autonomy Stock Issues  (Updated Aug 14, 2025)  Not officially endorsed or supported.

This page gives details for only one aspect of the many HP/HPE-related stocks. If you were ever an HP shareholder, you may now have shares of HPQ, HPE, Keysight, and/or Agilent – in different accounts. If ever an HPE shareholder, you may now have shares of DXC – and may not have received cash payouts for MFGP and PRSP. Only you – not the company, plan administrators, transfer agents, brokers, or the IRS – can reconstruct your full stock history. Transactions were often tracked and reported differently – or not at all.

When finished with this page, go to: HP/HPE-Related Stocks 

Tax basis. Due to the many complex HP-related stock events, only you – not the company, plan administrators, transfer agents, brokers, or the IRS – can reconstruct your full stock history. Transactions were often tracked and reported differently – or not at all. Retain your documents and tax calculations indefinitely. Admin and Broker Issues

2011-10-31  Autonomy was sold to HP. Autonomy shareholders received £25.50 in exchange for each Autonomy share. AUTN stock was retired. ($11.7 billion -- a 79% premium over the market price before announcement. CNBC )   Details

HP Inc is the overall legal successor to Hewlett-Packard and to companies acquired by Hewlett-Packard before Nov 1, 2015 – Compaq, EDS, etc. – regardless of whether a business unit ended up in HP Inc or HPE. Unofficial directory of HP/HPE acquisitions

Stockholder information and contact instructions: HP Inc Investor Relations Site https://investor.hp.com/resources/contact-ir/default.aspx (scroll down)

How the stock purchase worked:

HP SEC 8-K filing October 3, 2011: "On October 3, 2011, HP announced that HP Vision had received valid acceptances... representing approximately 87.34 percent of the existing issued share capital of Autonomy, which acceptances include those received with respect to 22,190,066 Autonomy shares (representing approximately 9.09 percent of the existing issued share capital of Autonomy) pursuant to irrevocable commitments procured by HP Vision from certain members of the Board of Directors of Autonomy who held Autonomy shares... Settlement of the Offer will, in the case of acceptances received on or before October 3, 2011, occur on or before October 17, 2011. With respect to acceptances received after October 3, 2011 but while the Offer remains open for acceptance, settlement will occur within 14 days of receipt... Following completion of the Offer, HP Vision intends to exercise its rights pursuant to Sections 974 to 991 of the United Kingdom Companies Act 2006 to acquire compulsorily, on the same terms as the Offer, the remaining Autonomy shares with respect to which the Offer has not been accepted."

HP SEC 10-K filing December 14, 2011: "As of October 31, 2011, HP owned an approximately 99% equity interest in Autonomy, and HP expects to acquire a 100% equity interest before the end of the first quarter of fiscal 2012."

HPAA comment: A check was sent to the address in the ownership records for each shareholding -- Where's my stock?

Keep your postal address current on every financial account. And run an "unclaimed property" search every year. Employer does not update your address. Financial institutions are required to turn over inactive accounts to the state. Neither cashing dividend checks, receiving direct deposits, accessing accounts online, nor receiving statements prevents this – only a personally-initiated transaction, postal response, or call. Difficult to retrieve funds – and stock is sold. Easy to check: Unclaimed Property

U.S. SEC filings on AUTNF stock