InterXion Holding N.V., a Dutch public limited liability company (naamloze vennootschap) organized under the
Laws of the Netherlands (InterXion), previously entered into a purchase agreement, dated as of October 29, 2019, as amended on January 23, 2020 (as it may be further amended or supplemented from time to time, the Purchase
Agreement), by and among InterXion, Digital Realty Trust, Inc., a Maryland corporation (DLR) and Digital Intrepid Holding B.V. (formerly known as DN 39J 7A B.V.), a Dutch private limited liability company (besloten
vennootschap met beperkte aansprakelijkheid) organized under the Laws of the Netherlands (Buyer), pursuant to which Buyer has commenced an offer to exchange (the Offer) each
outstanding InterXion ordinary share, par value 0.10 per share, validly tendered and not properly withdrawn pursuant to the Offer for the right to receive 0.7067 shares of DLR common stock, par value $0.01 per share.
On February 28, 2020, InterXion and DLR received approval from the French Ministry of Economy and Finance, the foreign investment regulatory authority,
with respect to the transactions contemplated by the Purchase Agreement. As a result, InterXion and DLR have obtained all regulatory approvals required under the Purchase Agreement, and the condition of the Offer relating to the receipt of certain
required regulatory approvals has been satisfied.
The Offer remains subject to additional customary closing conditions, including the valid tender of the
requisite minimum number of InterXions ordinary shares in the Offer.
Additional Information and Where to Find It
This communication is for information purposes only and does not constitute an offer to sell or the solicitation of an offer to buy any securities or a
solicitation of any proxy, vote or approval with respect to the proposed transaction or otherwise, nor shall there be any sale of securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or
qualification under the securities laws of any such jurisdiction. In connection with the proposed transactions, on December 5, 2019, DLR filed a Registration Statement on Form S-4 with the U.S. Securities
and Exchange Commission (the SEC), that included a proxy statement of DLR, which also constitutes a prospectus of DLR. The Registration Statement was amended on January 7, 2020 and January 24, 2020, and was declared effective
by the SEC on January 27, 2020. On January 29, 2020, DLR caused its subsidiary to file a Tender Offer Statement on Schedule TO (the Schedule TO) with the SEC and on the same date, InterXion filed a Solicitation/Recommendation
Statement on Schedule 14D-9 (the Schedule 14D-9) with the SEC. Also in connection with the exchange offer, on January 29, 2020, DLR mailed a definitive
proxy statement/prospectus to shareholders of DLR and InterXion. The solicitation and offer to purchase InterXions ordinary shares is only being made pursuant to the Schedule TO and related offer to purchase. This material is not a substitute
for the proxy statement/prospectus, the Schedule TO, the Schedule 14D-9 or the Registration Statement or for any other document that DLR or InterXion may file with the SEC and send to DLRs or
InterXions shareholders in connection with the proposed transactions.
BEFORE MAKING ANY VOTING OR INVESTMENT DECISION OR DECISION WITH RESPECT TO
THE EXCHANGE OFFER, WE URGE INVESTORS OF DLR AND INTERXION TO READ THE REGISTRATION STATEMENT, PROXY STATEMENT/PROSPECTUS, SCHEDULE TO (INCLUDING AN OFFER TO PURCHASE, RELATED LETTER OF TRANSMITTAL AND OTHER OFFER DOCUMENTS) AND SCHEDULE 14D-9, AS EACH MAY BE AMENDED OR SUPPLEMENTED FROM TIME TO TIME, AND OTHER RELEVANT DOCUMENTS FILED BY DLR AND INTERXION WITH THE SEC CAREFULLY BECAUSE THEY CONTAIN IMPORTANT INFORMATION ABOUT DLR, INTERXION AND THE
PROPOSED TRANSACTIONS.
Investors may obtain free copies of the Registration Statement, proxy statement/prospectus, Schedule TO and Schedule 14D-9, as each may be amended from time to time, and other relevant documents filed by DLR and InterXion with the SEC at http://www.sec.gov, the SECs website, or free of charge from DLRs website
(http://www.digitalrealty.com) or by contacting DLRs Investor Relations Department at (415) 848-9311. These documents are also available free of charge from InterXions website
(http://www.interxion.com) or by contacting InterXions Investor Relations Department at
(813) 644-9399.