MEMORANDUM OF DECISION AND ORDER
SQUATRITO, District Judge.Now pending in the above-captioned matter is plaintiffs’ third motion to compel (dkt.# 201) discovery from defendants. For the reasons set forth herein, this motion is GRANTED in part and DENIED in part without prejudice.
I. BACKGROUND
Lead plaintiffs bring this action on behalf of members of a putative class of persons who purchased or otherwise acquired securities of priceline.com Inc. (“Priceline”) between January 27, 2000 and October 2, 2000 (“Class Period”), pursuant to Sections 10(b), 15 U.S.C. § 78j(b), and 20(a), 15 U.S.C. § 78t, of the Securities Exchange Act of 1934 (“the Exchange Act”), as amended by the Private Securities Litigation Reform Act of 1995 (“PSLRA”), 15 U.S.C. §§ 78a-78mm, and Rule 10b-5, 17 C.F.R. § 240.10b-5, promulgated thereunder, against Priceline, Jay S. Walker, N.J. Nicholas, Daniel H. Sehulman, and Richard S. Braddock. Plaintiffs allege that defendants’ false and misleading statements inflated the value of Prieeline’s stock to the benefit of the defendants and other company insiders and to the detriment of the plaintiffs. Specifically, plaintiffs allege that during the period from mid-July 2000 to September 26, 2000, defendants sold, in the aggregate, millions of shares of Priceline stock, allowing them to profit substantially prior to disclosing various deficiencies in Priceline’s short term economic outlook.
*94The gravamen of plaintiffs’ allegations is that defendants grossly overstated the utility of Priceline’s business model, and that defendants, outside the view of the investing public, spent exorbitant amounts of Priceline’s cash to keep the doomed venture called Web-House afloat primarily to bolster their state-, ments about the utility of the business model.
II. DISCUSSION
Rule 26 of the Federal Rules of Civil Procedure governs the scope of discovery. Specifically, “[p]arties may obtain discovery regarding any matter, not privileged, which is relevant to the subject matter involved in the pending action....” Fed.R.Civ.P. 26(b)(1). As a general proposition, the Federal Rules of Civil Procedure concerning discovery are to be construed broadly. See generally 6 Moore’s Federal Practice § 26.41(1) (Matthew Bender 3d ed.1997) (citing Herbert v. Lando, 441 U.S. 153, 177, 99 S.Ct. 1635, 60 L.Ed.2d 115 (1979)). A valid discovery request need only “encompass any matter that bears on, or that reasonably could lead to other matter that could bear on, any issue that is or may be in the case.” Oppenheimer Fund, Inc. v. Sanders, 437 U.S. 340, 351, 98 S.Ct. 2380, 57 L.Ed.2d 253 (1978); see Hickman v. Taylor, 329 U.S. 495, 501, 67 S.Ct. 385, 91 L.Ed. 451 (1947); Gary Plastic Packaging Corp. v. Merrill Lynch, Pierce, Fenner & Smith, Inc., 756 F.2d 230, 236 (2d Cir.1985).
In the instant motion, plaintiffs seek an order overruling defendants’ attorney-client privilege and work product immunity objections and compelling defendants to produce certain documents. The overriding theme of plaintiffs’ motion is that defendants have not provided sufficient information to establish that certain documents are privileged or work product, and have therefore not met their burden of asserting their objections or have waived their objections.
Although defendants’ privilege log meets the technical requirements of Rule 37(a)l of the Local Rules of Civfl Procedure for the District of Connecticut, which precludes the finding that defendants have forfeited or waived then- objections, defendants have not adequately demonstrated that them objections should be sustained with respect to all entries. Defendants shoulder the burden of demonstrating that information is protected by the attorney-client privilege or the work product immunity doctrine, and must therefore supplement their privilege log to provide information necessary to make an informed determination of the validity of their objections. See U.S. v. International Broth. of Teamsters, Chauffeurs, Warehousemen and Helpers of America, AFL-CIO, 119 F.3d 210, 214 (2d Cir.1997) (“The burden of establishing the existence of an attorney-client privilege, in all of its elements, rests with the party asserting it.”).
Specifically, the bases for defendants’ privilege and work product objections are, in some cases, complex, and defendants must elaborate upon why these documents deserve protection. Many of the documents listed in the privilege log were sent to several persons outside of Priceline such as attorneys from multiple law firms and persons from other business firms, such as WebHouse. Plaintiffs justifiably express the concern that the information within the documents listed may not be privileged because it may have been revealed to persons outside the attorney-client zone of protection. Defendants correctly point out that they may be entitled to assert a joint defense privilege. Defendants must therefore place the communications in context so that an informed determination can be made with respect to each document drafted or received by persons affiliated with multiple companies or firms. See Lugosch v. Congel, 219 F.R.D. 220, 241 (N.D.N.Y.2003) (“The co-parties asserting the joint defense privilege will still be required to demonstrate, inter alia, they had a shared common interest and prior to sharing the work product amongst them, there existed an agreement that they will pursue a joint-defense strategy.”); SCM Corp. v. Xerox Corp., 70 F.R.D. 508, 513 (D.Conn.1976) (“The timing and setting of the communications are important indicators of the measure of common interest....”).
Likewise, defendants must attempt to explain how documents it claims are immune from discovery pursuant to the work product *95doctrine were created in anticipation of litigation. See U.S. v. Adlman, 134 F.3d 1194, 1202 (2d Cir.1998). As the Court of Appeals has explained, a document is prepared in anticipation of litigation when “in light of the nature of the document and the factual situation in the particular case, the document can fairly be said to have been prepared or obtained because of the prospect of litigation.” Id. (quoting 8 Charles A. Wright, Arthur R. Miller & Richard L. Marcus, Federal Practice and Procedure § 2024 (2d ed.1994)) (emphasis in original). Defendants should also identify documents, or portions thereof, that qualify as opinion work product, and are therefore eligible for heightened protection.
III. CONCLUSION
More information is required before the court can rule upon defendants’ privilege and work product objections. Defendants bear the burden of providing more information to plaintiffs, and eventually to the court, to assist in this determination. As such, the court orders the following with respect to plaintiffs’ third motion to compel (dkt.# 201):
1. Inasmuch as plaintiffs seek a more detailed explanation of the basis for defendants’ objections to producing the documents identified in plaintiffs’ motion, plaintiffs’ motion is GRANTED. The court, however, will not dictate the manner in which defendants will provide this information; defendants shall provide whatever information is necessary to meet their burden with respect to each objection.
2. Inasmuch as plaintiffs seek an order overruling defendants’ objections and compelling production, plaintiffs’ motion is DENIED without prejudice. Defendants shall serve revised privilege logs upon plaintiffs on or before February 17, 2006. Plaintiffs may renew their motion within twenty (20) days of the end of the meet and confer process.