Del. Super. Ct. R. Civ. P. 26 (2026)

Rule 26(b)(4) regardless of the form of the communications, except to the extent that communications: (i) relate to compensation for the expert study or testimony; (ii) identify facts or data that the party’s attorney provided and that the expert considered in forming the opinions to be expressed; or

(iii) identify assumptions that the party’s attorney provided and that the expert relied on in forming the opinions to be expressed. (7) Claims of privilege or protection of trial material. When a party withholds information otherwise discoverable under these rules by claiming that it is privileged or subject to protection as trial preparation material, the party shall make the claim expressly and shall describe the nature of the documents, communications or things not produced or disclosed in a manner that, without revealing information itself privileged or protected, will enable other parties to assess the applicability of the privilege or protection. (c) Protective orders. Upon motion by a party or by the person from whom discovery is sought, and for good cause shown, the Court or alternatively, on matters relating to a deposition taken outside the State of Delaware, a court in the state where the deposition is to be taken may make any order which justice requires to protect a party or person from annoyance, embarrassment, oppression, or undue burden or expense, including one or more of the following: (1) that the discovery not be had; (2) that the discovery may be had only on specified terms and conditions, including a designation of the time or place or the allocation of expenses; (3) that the discovery may be had only by a method of discovery other than that selected by the party seeking discovery; (4) that certain matters not be inquired into, or that the scope of the discovery be limited to certain matters; (5) that discovery be conducted with no one present except persons designated by the Court; (6) that a deposition after being sealed be opened only by order of the Court; (7) that a trade secret or other confidential research, development, or commercial information not be disclosed or be disclosed only in a designated way; (8) that the parties simultaneously file specified documents or information enclosed in sealed envelopes to be opened as directed by the Court. A party has standing to move for a protective order with respect to discovery directed at a non-party on the basis of annoyance, embarrassment, oppression, or undue burden or expense that the moving party will bear. A non-party from another state from whom discovery is sought always may move for a protective order from the court in the state where discovery is sought or, alternatively, from this Court provided the non- party agrees to be bound by the decision of this Court as to the discovery in question. If the motion for a protective order is denied in whole or in part, the Court may, on such terms and conditions as are just, order that any party or person provide or permit discovery. The provisions of Rule 37(a)(4) apply to the award of expenses incurred in relation to the motion. (d) Sequence and timing of discovery. Unless the Court upon motion, for the convenience of parties and witnesses and in the interests of justice, orders otherwise, methods of discovery may be used in any sequence and the fact that a party is conducting discovery, whether by deposition or otherwise, shall not operate to delay any other party’s discovery. (e) Supplementation of responses. A party who has responded to a request for discovery with a response that was complete when made is under no duty to supplement the response to include information thereafter acquired except as follows: (1) A party is under a duty seasonably to supplement the response with respect to any question directly addressed to (A) the identity and location of persons having knowledge of discoverable matters, and (B) the identity of each person expected to be called as an expert witness at trial, the subject matter on which the person is expected to testify, and the substance of the person’s testimony. (2) A party is under a duty seasonably to amend a prior response if the party obtains information upon the basis of which (A) the party knows that the response was incorrect when made, or (B) the party knows that the response although correct when made is no longer true and the circumstances are such that a failure to amend the response is in substance a knowing concealment. (3) A duty to supplement responses may be imposed by order of the Court, agreement of the parties, or at any time prior to trial through new requests for supplementation of prior responses. (f) Discovery conference. At any time after commencement of an action the Court may direct the attorneys for the parties to appear before it for a conference on the subject of discovery. The Court shall do so upon motion by the attorney for any party if the motion includes: (1) A statement of the issues as they then appear; (2) A proposed plan and schedule of discovery;

(3) Any limitations proposed to be placed on discovery; (4) Any other proposed orders with respect to discovery; and (5) A statement showing that the attorney making the motion has made a reasonable effort to reach agreement with opposing attorneys on the matters set forth in the motion. Each party and each party’s attorney are under a duty to participate in good faith in the framing of a discovery plan if a plan is proposed by the attorney for any party. Notice of the motion shall be served on all parties. Objections or additions to matters set forth in the motion shall be served not later than 10 days after service of the motion. Following the discovery conference, the Court shall enter an order tentatively identifying the issues for discovery purposes, establishing a plan and schedule for discovery, setting limitations on discovery, if any; and determining such other matters, including the allocation of expenses, as are necessary for the proper management of discovery in the action. An order may be altered or amended whenever justice so requires. Subject to the right of a party who properly moves for a discovery conference to prompt convening of the conference, the Court may combine the discovery conference with a pretrial conference authorized by