MEMORANDUM AND ORDER ON DEFENDANT AMERICAN PIPE & CONSTRUCTION COMPANY’S MOTION FOR SUMMARY JUDGMENT ON ALL CLAIMS NOT BASED ON IDENTIFIED PURCHASES FROM AMERICAN
In this сivil treble damage antitrust action for alleged overcharges on the purchase of steel and concrete conduit pipe, 1 defendant American Pipe & Construction Co. (American) has moved pursuant to Rule 56(b) and (c), F.R.Civ.P., for an order granting summary judgment on the claims of all plaintiffs who do nоt have any identified transactions with American. These plaintiffs fall into four categories: (1) those who have not iden *804 tified any purchases, or have identified purchases only with named defendants (other than American) with whom settlement agreements have been reached; (2) those who have purchases from non-defendant, alleged co-conspirators; (3) those who have purchases from non-defendant, non-conspirators; and (4) those who have identified purchases from as yet unknown suppliers.
It is conceded that those plaintiffs in group (1), i. e., those who have not identified any transactions, or have identified purchases only from named defendants with whom plaintiffs have heretofore settled, 2 should be dismissed. Plaintiffs contest American’s motion as it relates to the other three classes of claimants.
1. Purchases From Non-Defendant Co-Conspirators
Plaintiffs are attempting to recover from American for injury sustained on purchases from alleged co-conspirators who were not named as defendants herein. American contends there is no legal precedent for such claims, and hаs moved this court to dismiss these causes as a matter of law.
It is well established that “a cause of action in a private antitrust suit for treble damages is a tort action * *
3
As stated in Northwestern Oil Co. v. Socony-Vacuum Oil Co.,
“ * * * [an] action under the Clayton Act is one in tort, not to recover an overcharge as such, but tо collect damages sustained to plaintiff’s property or business. Such damage arises, as Mr. Justice Holmes remarked in Chattanooga Foundry & Pipe Works v. City of Atlanta,203 U.S. 390 ,27 S.Ct. 65 ,51 L.Ed. 241 , when it is shown that the property of one complaining is diminished.”
It is equally well established that co-conspirator, joint tort-feasors are jointly and severally liable for their acts. 4 Accordingly, numerous courts have held that an antitrust plaintiff need not sue all possible defendants but may choose which of the conspirators he will make party to the action. 5 Section 4 of the Clayton Act provides that “any person * * * injured in his business or property by reason of anything forbidden in the antitrust laws may sue therefor * * * 6 guch an action will lie against all the parties committing the offense, but “ * * * one charged as a member of a conspiracy to violate the anti-trust laws may not successfully claim the indispensability of his fellow conspirators * * 7 It is the fact of participation in the conspiracy which makes all participants liable for the victim’s injury. Once damage has occurred, each co-conspirator is accоuntable for the dam *805 age caused by the overt act of any member pursuant to or in furtherance of the illegal plan. Thus American must share the responsibility for any damages proved which were occasioned by the sales of co-conspirators, evеn though it may not have directly participated in, or benefited from, such activity. 8
These principles were applied in City of Atlanta v. Chattanooga Foundry and Pipeworks,
“That there was evidence tending to show that the plaintiff had been compelled to pay an unreasonable price for the pipe which it bought during the continuanсe of the unlawful combination complained of is not to be disputed. That its purchases were made exclusively from the Anniston Pipe Company, a corporation doing business in Alabama, and that it is not suing that corporation, is of no vital significance.” 9
The facts in Chattanooga are strikingly similar to plaintiffs’ allegations. American has not called the court’s attention to any decision in the intervening sixty years in which the rule of Chattanooga was not followed, or to any reason why it should be distinguished here. Neither does the court see any reason why the Chattanooga rule should not be applied to these actions.
Defendant’s motion is denied insоfar as it relates to claims based on transactions with non-defendant, alleged co-conspirators.
II. Purchases From Non-Defendant, Non-C onspirators
Plaintiffs are also seeking compensation from American for allegedly excessive payments made on purchases from non-conspiratoriаl manufacturers. Plaintiffs assert that the alleged conspiracy raised the general price level in the market, and that non-conspirators sold their product under this umbrella at higher prices than would have prevailed absent the illegal activity. American cоntends such claims are too remote and unrelated to the alleged violation to support a cause of action under § 4 of the Clayton Act. Accordingly, defendant has moved this court to dismiss all claims based on transactions with non-conspirators, as a mаtter of law, for lack of standing to sue. The court is unaware of, and counsel have not cited, any reported decisions directly ruling on this question. 10
Actual injury to plaintiff’s business or property is a necessary ingredient to recovery under § 4 of the Clayton Act; the mere fact that a violation of the antitrust laws has occurred is not sufficient.
“Private antitrust actions are not founded upon showing of unlawful conduct only, but upon injuries, to the protected interests, which are the legal result of the overt illegal acts.” 11
*806 The courts have embroidered limitations onto Clayton § 4’s phrase, “any person”, curtailing the class of persons covered. Not every financial loss resulting from an antitrust violation gives rise to an actionable claim. Recovery for injury which is indirect, consequential or derivative is prеcluded. 12 To maintain his suit, a plaintiff must establish (a) a proximate, causal connection between defendant’s action and injury translatable into money damages, and (b) that such injury is not remoic from the illegal activity. 13
Causation: Here, plaintiffs assert that as a result of Amеrican’s price fixing activities they were injured on purchases from non-conspirator manufacturers. They maintain the alleged conspiracy artificially elevated the market price, thereby effectuating sales by non-conspirators at a level in еxcess of hypothetical, competitive prices. Plaintiffs claim such allegedly inflated prices would not have prevailed absent the conspiracy, and, therefore, are irrevocably tied to, and were caused by, American’s illegal acts.
American replies that since any injury which may be proved resulted from sales by third parties, it is freed of responsibility for such damages. Defendant argues that the injury may be traced back only so far as the actual seller of pipe, regardless of defendant’s behavior and the influence thereof. This intervening act is allegedly the cause of plaintiffs’ presumed damage, as, without it, there could be no action.
However, the court does not need to, and, in fact, can not now determine the cause of plaintiffs’ injury. 14 This is a fact question and must be reserved for the jury.
“The court therеfore concluded that petitioner had not sustained the bur *807 den of proving that the depreciation in value of its plant was due in any measurable degree to any violation of the Sherman Act by the respondents. But this conclusion rested upon inferences from facts within the exclusive province of the jury, and which could not be drawn by the court contrary to the verdict of the jury without usurping the functions of that fact finding body. Whether the unlawful acts of respondents or conditions apart from them constituted the proximate cause of the depreciation in value was a question, upon the evidence in this record, for the jury ‘to be determined as a fact, in view of the circumstances of fact attending it.’ ” 15
Remoteness: American also contends that any injury plaintiffs may have incurred on purchases from non-сonspirators is too remote to support recovery from American, and that such alleged damage is but incidental to defendant’s presumed violations. American maintains that the necessary, proximate, legal causation is lacking here, where the injured party was an indirect victim of the alleged conspiracy.
American’s contentions must fail. The facts herein do not support defendant’s claim when tested against the standards established by the Ninth Circuit. It has been repeatedly stated that injury is direct and proximate when it occurs within that “ ‘area [of economic activity] which it could reasonably be foreseen would be affected’ by the antitrust violation.” 16 Sales by non-conspirators to these plaintiffs are clearly within the area of the economy in which competitive conditions allegedly disintegrated. The underlying purpose of the presumed conspiracy was to raise pipe prices by ending competitive bidding. If the alleged conspirators succeeded in this goal, American is liable for damages sustained on all salеs which were affected by the elimination of competition. The identity of the pipe seller, whether conspirator or not, is irrelevant. Plaintiffs’ claims of injury arise directly from the proscribed activity. The alleged conspirators intended to raise the pricеs these claimants paid for the pipe which they manufactured. In doing so they may have also brought about increases in the prices charged by non-collaborators. If plaintiffs can establish as a matter of fact (1) that they paid more for pipe purchased from non-defendant non-conspirators than would have been paid absent the alleged conspiracy, and (2) that American’s alleged participation in an anticompetitive conspiracy was the cause of such over-payment, nothing in thе law will preclude recovery from American. Plaintiffs’ ability to prove such facts is for the jury to decide, not this court. American’s motion for summary judgment is, therefore, denied insofar as it relates to purchases from non-conspirator manufacturers.
III. Purchases From Unknown Suppliers
Certain plaintiffs have identified purchases of pipe, but are unable, at this time, to specify the manufacturer. Identity of the suppliers would, of course, have to be established by proof at trial, but, when identified, such sellers must, ipso facto, be either American, one of the named co-defendаnts, or a non-defendant manufacturer who may or may not be an alleged co-conspirator. After identification of the manufacturer, transactions with now unknown suppliers *808 would thereupon be subject to the rulings and agreements noted above.
The identity of the unknown manufacturers is a “genuine issue * * * [of] material fact” which precludes summary judgment on these claims. Accordingly, American’s motion is denied insofar as it relates to transactions with as yet unidentified sellers. However, this portion of the court’s order is without prejudice to renewal at the completion of any plaintiff’s case if plaintiff fails to establish the necessary proof.
It is herewith ordered that defendant’s motion for summary judgment is granted insofar as it covers plaintiffs who have not identified any transactions, or have identified purсhases only from named defendants with whom plaintiffs have heretofore settled. Defendant’s counsel shall prepare a list of such plaintiffs and submit it, together with an appropriate order of dismissal, for the court’s approval.
In all other respects defendant’s motion is denied.
Notes
. 15 U.S.C. §§ 1, 2 and 15.
. Memorandum in Opposition to thе Motion of Defendant American Pipe & Construction Co. for Summary Judgment, at pp. 2-3 (dated August 21, 1967).
. Simpson v. Union Oil Co. of California,
. Checker Motors Corp v. Chrysler Corp.,
. National Wrestling Alliance v. Myers,
. 15 U.S.C. § 15.
. Martin v. Chandler,
. Twentieth Century Fox Film Corp. v. Goldwyn,
.
. But see Kansas City Power & Light Co. v. I-T-E Circuit Breaker Co.,
“Each case involves the sale of such equipment by I-T-E. But liability of I-T-E is not limited by statute to sales by it, if it in fact conspired to fix prices and allocate markets with other sellers оf such equipment.”
. Haverhill Gazette Co. v. Union Leader Corporation,
. Loeb v. Eastman Kodak Co.,
. Flintkote Co. v. Lysfjord,
. The law does not require that the antitrust violation be the sole and exclusive cause of the alleged injury.
“Even if the market factors to which defendant points did contribute to plaintiff’s injury and were unconnected with the conspiracy, a plaintiff in an antitrust suit is not barred merely because factors other than defendant’s unlawful conduct may have contributed to its injury. ‘The usual rule in tort is that a plaintiff may recover for loss to which defеndant’s wrongful conduct substantially contributed, notwithstanding other factors contributed also.’ ” Ford Motor Co. v. Webster’s Auto Sales, Inc.,361 F.2d 874 , 885 (1 Cir. 1966).
See also Switzer Brothers, Inc. v. Locklin,
. Story Parchment Co. v. Paterson Parchment Paper Co.,
. Hoopes v. Union Oil Co. of Calif.,
