MEMORANDUM ***

Julita Aldan Sabían appeals the district court’s denial of her motion for a judgment of acquittal. Sabían was indicted for: (1) conspiracy to distribute a controlled substance in violation of 21 U.S.C. §§ 841(a)(1), 841(b)(1)(C), 846; and (2) possession with intent to distribute and distribution of a controlled substance in violation of 21 U.S.C. §§ 841(a)(1), 841(b)(1)(C). At the close of the evidence, Sabían moved for a judgment of acquittal asserting there was insufficient evidence to support a conviction. The district court denied the motion, and the jury convicted Sabían on both counts. We have jurisdiction pursuant to 28 U.S.C. § 1291, and we affirm. Because the facts are known to the parties, we revisit them only as necessary.

“When, as in this case, a claim of sufficiency of the evidence is preserved by making a motion for acquittal at the close of the evidence, this court reviews the district court’s denial of the motion de novo.” United States v. Carranza, 289 F.3d 634, 641 (9th Cir. 2002). There is sufficient evidence to support a conviction if “after viewing the evidence in the light most favorable to the prosecution, any rational trier of fact could have found the essential elements of the crime beyond a reasonable doubt.” Id. at 641-42 (citation omitted) (emphasis in original).

This case arises out of a controlled purchase of methamphetamine on September 13, 2006. At trial, the evidence showed Joseph Javier, a paid government informant, purchased methamphetamine from Ismike Magofna, Sablan’s co-defendant who pleaded guilty to possession with intent to distribute and distribution of methamphetamine.

On appeal, Sabían contends the evidence was insufficient to prove beyond a reasonable doubt that she was in possession of the methamphetamine sold to Javier on September 13, 2006. Sabían asserts Magofna had sole dominion and control over the methamphetamine.

Possession is not a required element of Sablan’s conviction for conspiracy to distribute a controlled substance. See United States v. Disla, 805 F.2d 1340, 1348 (9th Cir. 1986). By failing to challenge on appeal any of the elements required to convict her of conspiracy, Sabían has waived an insufficiency of the evidence claim as to her conspiracy conviction. See Smith v. Marsh, 194 F.3d 1045, 1052 (9th Cir. 1999). Thus, the only issue on appeal is whether sufficient evidence exists to convict Sabían of possession with intent to distribute and distribution of a controlled substance pursuant to 21 U.S.C. § 841(a)(1).

Under § 841(a)(1), possession of a controlled substance may be constructive or actual. Disla, 805 F.2d at 1350. Constructive possession means the “exercise of dominion and control” over the drugs and “reflects the common sense notion that an individual may possess a controlled substance even though the substance is not on his person at the time of arrest.” Id. (citation omitted). Constructive possession may be proven by, inter alia, direct or circumstantial evidence that “the defendant had the power to dispose of the drug,” either personally or through an agent. Id.; United States v. Smith, 962 F.2d 923, 929 (9th Cir. 1992).

Viewing the facts in the light most favorable to the government, a reasonable *948juror could have found beyond a reasonable doubt that Sabían was in constructive possession of the methamphetamine sold to Javier on September 13, 2006, because she had the “authority to dispose of the [methamphetamine], either personally or through an agent.” See Smith, 962 F.2d at 929. For three reasons, a rational juror could conclude Magofna was acting as Sablan’s agent in executing the methamphetamine sale.

First, after Javier arrived at Sablan’s house and before Javier even asked Sabían for drugs, Sabían gestured to Javier to be quiet and directed Javier to Magofna, from whom Javier eventually purchased the methamphetamine. Based on this evidence, a rational juror could find: (1) Sabían knew Javier wanted to buy methamphetamine before Javier even asked; and (2) Sabían wanted the methamphetamine sale to take place through Magofna.

Sabían had plenty of reasons for not wanting Javier to purchase the methamphetamine directly from her. Through a note discovered in the execution of a search warrant on April 6, 2006, Sabían had been warned law enforcement was closely surveilling drug dealing activity. The note expressly stated: “Your area of dealing is not safe anymore. Hot-spot.” The note was addressed, among others, to “J.S.G.,” which corresponds to the initials of Sablan’s common-law marriage name. This note was found in a house located across the street from Sablan’s house where Javier went to purchase the methamphetamine. Further, following the April 6, 2006 search, Sabían was arrested on drug trafficking charges, placed on house arrest, and required to wear an electronic monitoring bracelet. Thus, a reasonable juror could find Sabían wanted to avoid any direct involvement in selling methamphetamine to Javier, and instead used Magofna to execute the deal.

Second, during the negotiations between Javier and Magofna, Magofna told Javier he needed to see the money first because, “It’s what Jul want.” This suggests “Jul” was in charge of the drug transaction and directing Magofna on how to execute the sale. That is, Magofna was acting as an agent for “Jul,” who was the principal.

There is no evidence in the record that “Jul” was a common shorthand name for Julita Sabían. Nevertheless, aside from the fact that “Jul” corresponds to the first three letters of Julita Sablan’s first name, a rational juror could find, based on the evidence in the record, Magofna referred to Sabían with his mention of “Jul.”

There was evidence to show Magofna and Sabían knew each other before September 13, 2006, and both stayed, at least on occasion, at a house suspected of use in drug trafficking. Cf. United States v. Hernandez, 876 F.2d 774, 778 (9th Cir. 1989) (holding evidence of constructive possession is sufficient in part because the defendant “enjoyed a close and continuous working relationship with those ... who may have had actual physical possession of the” drugs (citation omitted)). During the April 6, 2006 search, Sabían and Magofna were both present in the house where numerous paraphernalia used in packaging and distributing methamphetamine were found. That Magofna and Sabían knew each other and stayed together in a house where methamphetamine paraphernalia were found supports a conclusion that Magofna referred to Julita Sabían when he told Javier of “Jul’s” instructions in selling methamphetamine.

Further, as noted above, it was Sabían who called to Javier to get his attention when Javier arrived at Sablan’s house. It was Sabían who gestured to Javier to be quiet and directed him to Magofna. Thus, when Magofna informed Javier of the directives of “Jul,” a reasonable juror could *949conclude Magofna referred to Julita Sabían.

Third, a law enforcement officer testified at trial that it is “very common” for the leader of a drug dealing operation to use a subordinate (a “runner”) to handle the drugs and the money to avoid liability. This testimony further bolsters the reasonableness of a finding that Sabían retained authority over the sale of the methamphetamine, even though Magofna had sole physical possession.

Thus, viewing the facts in the light most favorable to the government, a reasonable juror could have found beyond a reasonable doubt that Sabían was in constructive possession of the methamphetamine sold to Javier on September 13, 2006.

AFFIRMED.