SLOVITER, Circuit Judge.
Robert Fasold, a former detective in the office of the District Attorney in Montgomery County, Pennsylvania, appeals the order of the District Court entering summary judgment against him and dismissing his complaint alleging that his termination violated the state and federal age discrimination acts. He sued his former supervisors and employer: Deputy Chief Detective Edmund Justice, Chief Detective Oscar Vance, Lieutenant Detective Frank Bason, District Attorney Bruce Castor, the Office of the District Attorney for Montgomery County, and Montgomery County, Pennsylvania (hereinafter collectively “Defendants”).
The District Court had jurisdiction pursuant to 28 U.S.C. §§ 1331, 1367; this court has jurisdiction under 28 U.S.C. § 1291. For the reasons set forth below, we will reverse.
I.
In reviewing the grant of summary judgment, we must view “the underlying facts and all reasonable inferences therefrom in the light most favorable to the party opposing the motion,” here Fasold. Pa. Coal Ass’n v. Babbitt, 63 F.3d 231, 236 (3d Cir.1995); see also In re Flat Glass Antitrust Litig., 385 F.3d 350, 357 (3d Cir.2004).
Fasold was thirty-three1 years old in 1986 when he began his work as a detective at the Montgomery County District Attorney’s Office.2 During his first two years with the District Attorney’s Office he worked in the Major Crimes Unit; in 1988 he went to the Narcotics Unit where his primary duty was the care, performance, and handling of a drug-sniffing canine. In 1992, he was transferred back to the Major Crimes Unit where he spent the next eight years. His primary responsibility was the investigation of white collar crime.
In November 2000, Fasold was told that effective January 2, 2001, he was being-transferred back to the Narcotics Unit. Fasold was uncomfortable with the proposed move because of his lack of experience in Narcotics (the drug dog aside) and his positive work experiences and evaluations in Major Crimes. Also, Fasold remembered that the detectives in Narcotics were expected to work with informants and to make undercover buys — asks for which Fasold felt ill-suited. Fasold, who had spoken with Vance in October 2000 [181] about coining to work early and leaving early so that he could care for his children, was also concerned about the transfer because of the irregular working hours and overtime for detectives in the Narcotics Unit.
After Fasold learned of the impending reassignment, he raised his concerns with both Justice and Vance. He also voiced his concerns to Bason, a supervisor in the Narcotics Unit. According to Fasold, during the latter conversation Bason stated: “[C]an’t you see the handwriting on the wall? ... [T]hey don’t want you here anymore.” App. at 85. Bason does not deny that he used the expression the “handwriting on the wall,” but recalls that he used it at a later time, indicating that it was in reference to Fasold’s poor performance at work. App. at 589-90. In any event, despite his protestations, Fasold’s reassignment to the Narcotics Unit occurred as planned. Fasold avers that, although he obviously was not pleased with the transfer, he tried to “mak[e] the best of it.” App. at 85.
In May 2001, Bason approached Fasold complaining that Fasold’s record since he rejoined the Narcotics Unit contained an insufficient number of investigations and arrests. Fasold responded that he believed his job was primarily that of a supervisor and that he was unaware that generating investigations and arrests were major parts of his responsibility. He further questioned Bason about why he had waited until May to approach him about this issue. Fasold maintains that Bason did not have a specific response to this query, but told him that he wanted him to work more overtime hours and noted several instances when Fasold was unavailable for overtime.3
During his deposition, Fasold recounted that Detective. Anthony Spagnoletti, who occupied an office near to Fasold’s, overheard the May 2001 conversation between Bason and Fasold. Spagnoletti then told Fasold: “[Ijsn’t it obvious to you that the people at the top do not want you here[?] ... Bason is their hatchet man, and, you know, they gave you to him, and they just want you out of here.” App. at 106-07.
Nonetheless, after his May 2001 meeting with Bason, Fasold worked with several prosecutors and police officers in an effort to generate investigations, cases, and arrests. Indeed, at his later deposition, Ba-son admitted that he noticed a “marked improvement” in Fasold’s work performance after their May 2001 meeting. App. at 606. Bason also testified that he could not recall any instances where Fasold had refused any request to work overtime after the May 2001 meeting.
On December 14, 2001, Fasold was assigned to assist state and local authorities with the controlled delivery of a large box of marijuana that was being transported by law-enforcement authorities to a warehouse in Cheltenham Township, Pennsylvania where it was to be picked-up by a suspected narcotics dealer. Fasold testified at his deposition that while he was en route to the warehouse in Cheltenham he informed Bason by telephone that he might need to leave the scene early in order to tend to a family situation.
That afternoon, the delivery, pick-up, and arrest occurred as planned. Fasold maintains that sometime after the suspect had been arrested he called Bason to inform him of the events and to tell him that he was leaving. Fasold testified that Ba-son did not ask him for any details of the [182] arrest, question him in regard to his leaving early, or otherwise complain about Fa-sold’s decision to leave.4 Bason, on the other hand, remembers Fasold’s phone call but testified that he did in fact question Fasold about the arrest and took issue with his decision to leave the scene. Specifically, because Fasold was unable to tell him what type of firearm the suspect had possessed and what was contained in the packages found in the suspect’s car, Bason concluded that Fasold had left the site while the investigation was still in its incipient stages. Moreover, Bason explained that the arrest was supposed to be a “learning experience” for the Cheltenham police as they had not previously participated in controlled package deliveries, and Fasold was supposed to lead them through the process. App. at 618. Bason testified that he doubted Fasold’s thoroughness because after the suspect was arraigned and released, he was able to empty three safe deposit boxes that might have been located and seized by the officers if an extensive inventory had been conducted at the time of the arrest.
On December 28, 2001, Bason summoned Fasold to his office and provided him with his annual performance review. According to Fasold, this was the first negative annual performance evaluation he had received in his fifteen-plus years with the District Attorney’s Office. Fasold also contends that during the meeting Bason informed him for the first time of his belief that he had left the December 14, 2001 Cheltenham arrest too early and without his knowledge or consent.
On January 3, 2002, Fasold was called to a meeting with Vance, Justice, and Bason. At that meeting, he was asked to resign voluntarily. The supervisors cited Fa-sold’s unsatisfactory arrest record in the Narcotics Unit, his refusal to work overtime, and his early departure from the December 14, 2001 Cheltenham arrest as grounds for the proposed resignation. Fa-sold refused to resign; consequently, his supervisors suspended him with pay until further notice.
Several days later, on January 7, 2002, District Attorney Castor terminated Fa-sold’s employment. Less than a week thereafter, the District Attorney filled the vacancy with Detective Christopher Kuk-lentz, who was then thirty-three years old.
Following his termination, Fasold followed the Montgomery County Grievance Procedure and submitted a Grievance Form. This led to a Level I hearing on April 17, 2002; at the end of this hearing Fasold’s grievance was denied. Thereafter, Fasold filed age-discrimination claims with the Federal Equal Employment Opportunity Commission (“EEOC”) and the Pennsylvania Human Relations Commission (“PHRC”).
On August 20, 2002, Castor, pursuant to the Grievance Procedure, held a Level II hearing and met with, inter alia, Fasold, Vance, and Justice for the purpose of reconsidering the issue of Fasold’s termination. By way of a letter dated September 11, 2002, Castor denied Fasold’s grievance and upheld the termination. Notably, Castor’s September 11 letter specifically mentioned the pending administrative proceedings charging age discrimination and called those allegations [183] “preposterous.” App. at 530.5
After receiving a right-to-sue letter from the EEOC, Fasold instituted this lawsuit. His complaint contains allegations under both the Age Discriminatioh in Employment Act (“ADEA”), 29 U.S.C. § 621 et seq., and the Pennsylvania Human Relations Act (“PHRA”), 43 Pa. Cons.Stat. § 951 et seq. The complaint asserts that Defendants discriminated against him on account of his age. It further avers that, in denying his grievance after his filing of an administrative action, Castor had engaged in unlawful retaliation.
After discovery was completed, the District Court granted Defendants’ motion for summary judgment. The District Court applied the framework established by -the United States Supreme Court in McDonnell Douglas Corp. v. Green, 411 U.S. 792, 93 S.Ct. 1817, 36 L.Ed.2d 668 (1973), and found that Fasold had raised a prima facie ease of age discrimination. The Court held, however, that Fasold had failed to present sufficient evidence to show that the Defendants’ proffered legitimate, nondiscriminatory reasons for the firing were pretextual. As to the retaliation claims, the District Court ruled that Fasold had failed to establish a prima facie case of retaliation; specifically, the District Court found that Fasold had failed to establish a “causal link” between his institution of agency proceedings and the denial of his grievance. App. at 8. This timely appeal followed.
II.
We review the District Court’s grant of summary judgment de novo, applying the same standard as did the District Court. Union Pac. R.R. Co. v. Greentree Transp. Trucking Co., 293 F.3d 120, 125 (3d Cir.2002). Summary judgment is appropriate where there are no genuine issues as to any material fact and the moving party is entitled to judgment as a matter of law. See Fed.R.Civ.P. 56. Summary judgment, however, must not be granted where there is a genuine dispute about a material fact, “that is, if the evidence is such that a reasonable jury could .return a verdict for the nonmoving party.” Anderson v. Liberty Lobby, Inc., 477 U.S. 242, 248, 106 S.Ct. 2505, 91 L.Ed.2d 202 (1986); see also Celotex Corp. v. Catrett, 477 U.S. 317, 322, 106 S.Ct. 2548, 91 L.Ed.2d 265 (1986); Matsushita Elec. Indus. Co. v. Zenith Radio Corp., 475 U.S. 574, 587, 106 S.Ct. 1348, 89 L.Ed.2d 538 (1986).
III.
To prevail on an intentional age discrimination claim under either the ADEA6 or the “analogous provision” of the PHRA,7 Simpson v. Kay Jewelers, [184] Div. of Sterling, Inc., 142 F.3d 639, 644 n. 5 (3d Cir.1998), a plaintiff must show that his or her age “ ‘actually motivated’ ” or “ ‘had a determinative influence on’ ” the employer’s adverse employment decision. Reeves v. Sanderson Plumbing Prods., Inc., 530 U.S. 133, 141, 120 S.Ct. 2097, 147 L.Ed.2d 105 (2000) (quoting Hazen Paper Co. v. Biggins, 507 U.S. 604, 610, 113 S.Ct. 1701, 123 L.Ed.2d 338 (1993)).8 A plaintiff can meet this burden (1) by presenting direct evidence of discrimination, see Price Waterhouse v. Hopkins, 490 U.S. 228, 109 S.Ct. 1775, 104 L.Ed.2d 268 (1989), or (2) by presenting indirect evidence of discrimination that satisfies the familiar three-step framework of McDonnell Douglas Corp. v. Green, 411 U.S. 792, 93 S.Ct. 1817, 36 L.Ed.2d 668 (1973). See generally Fakete v. Aetna, Inc., 308 F.3d 335, 337-38 (3d Cir.2002); Keller v. Orix Credit Alliance, Inc., 130 F.3d 1101 (3d Cir.1997) (en banc). As mentioned above, Fasold’s age discrimination claims proceeded under the McDonnell Douglas framework.9
Under the McDonnell Douglas paradigm, an employee must first establish a prima facie case of discrimination, after which the burden shifts to the employer to articulate a legitimate, nondiscriminatory reason for its adverse employment decision. See Storey v. Burns Int’l Sec. Servs., 390 F.3d 760, 764 n. 11 (3d Cir.2004); Shellenberger v. Summit Bancorp, Inc., 318 F.3d 183, 187 (3d Cir.2003). If the employer articulates one or more such reasons, the aggrieved employee must then proffer evidence that is sufficient to allow a reasonable finder of fact to find by a preponderance of the evidence that- the employer’s proffered reasons are false or pretextual. Sarullo v. United States Postal Serv., 352 F.3d 789, 797 (3d Cir.2003) (per curiam). It is important to note that although “the burden of production may shift” during the McDonnell Douglas inquiry, the “ ‘ultimate burden of persuading the trier of fact that the [employer] intentionally discriminated against the [employee] remains at all times with the [employee].’ ” Williams v. Phila. Hous. Auth. Police Dep’t, 380 F.3d 751, 759 n.3 (3d Cir.2004) (quoting Tex. Dep’t of Cmty. Affairs v. Burdine, 450 U.S. 248, 253, 101 S.Ct. 1089, 67 L.Ed.2d 207 (1981)).
The District Court held, and Defendants do not dispute, that Fasold established a prima facie case of age discrimination. He presented evidence that he (1) was over forty years old at the time of the adverse employment decision; (2) is qualified for the position in question; (3) suffered from an adverse employment decision; and (4) that his employer replaced him with someone sufficiently younger to permit a reasonable inference of age discrimination. See generally Potence v. Hazleton Area Sch. Dist., 357 F.3d 366, 370 [185] (3d Cir.2004); Anderson v. Consol. Rail Corp., 297 F.3d 242, 249 (3d Cir.2002).10
In turn, Defendants proffered evidence to support several facially legitimate, nondiscriminatory reasons for the firing. Specifically, Defendants maintained that Fa-sold had generated insufficient cases and arrests; was unwilling to work necessary overtime hours; had abandoned the December 14, 2001 Cheltenham arrest and had otherwise abdicated and shirked his duties with respect to that event; and, on at least two occasions, had failed to submit proper leave forms.
Therefore, this case, like many ADEA actions, turns on the final step of the McDonnell Douglas framework: whether Fasold presented evidence sufficient to allow a reasonable finder of fact to find by a preponderance of the evidence that Defendants’ proffered reasons are pretextual.
In Fuentes v. Perskie, 32 F.3d 759 (3d Cir.1994), this court, in addressing the McDonnell Douglas requirements, stated:
[ A] plaintiff who has made out a prima facie case may defeat a motion for summary judgment by either (i) discrediting the proffered reasons, either circumstantially or directly, or (ii) adducing evidence, whether circumstantial or direct, that discrimination was more likely than not a motivating or determinative cause of the adverse employment action.
32 F.3d at 764.11 In other words, if the aggrieved employee can raise evidence sufficient “to discredit the [employer’s] proffered reasons ... the [employee] need not also come forward with additional evidence of discrimination beyond his ... prima facie case” in order to survive summary judgment. Id.; see also Reeves, 530 U.S. at 148, 120 S.Ct. 2097 (“[A] plaintiffs pri-ma facie case, combined with sufficient evidence to find that the employer’s asserted justification is false, may permit the trier of fact to conclude that the employer unlawfully discriminated.”); Sheridan v. E.I. DuPont de Nemours & Co., 100 F.3d 1061, 1067 (3d Cir.1996) (en banc) (“[A] plaintiff may survive summary judgment ... if the plaintiff produced sufficient evidence to raise a genuine issue of fact as to whether the employer’s proffered reasons were not its true reasons for the challenged employment action.”). After reviewing the record, we conclude that Fa-sold has presented evidence from which a reasonable factfinder could choose to disbelieve Defendants’ proffered legitimate, nondiscriminatory reasons.
First, although Defendants contend that they fired Fasold at least in part because he had generated insufficient numbers of arrests and investigations since rejoining the Narcotics Unit, Bason-Fasold’s supervisor in the Narcotics Unit — testified that Fasold’s performance after their May 2001 meeting was “making [him] happy.” App. [186] at 628. He further testified that although Fasold’s performance after the May 2001 meeting was “still lagging” somewhat behind other detectives, he was more-or-less satisfied with Fasold’s ability to generate cases and arrests. App. at 629. In fact, he noted a “marked improvement” in Fa-sold’s performance after the May meeting. App. at 606. The evidence that Fasold’s direct supervisor was basically satisfied with the number of arrests and investigations generated by Fasold tends to undermine the validity of Defendants’ contention that they fired Fasold because he generated insufficient arrests and investigations. A reasonable factfinder could conclude that Defendants’ assertion that they fired Fasold because of his insufficient levels of arrests and investigations is an averment “unworthy of credence.” Fuentes, 32 F.3d at 765.
A similar outcome obtains with respect to their assertion that they fired Fasold because he was unwilling to work overtime. During his deposition, Bason conceded that detectives in his Unit routinely declined overtime shifts; he further conceded that, apart from Fasold, his office had never documented such refusals let alone reprimanded detectives for refusing overtime. More important, Bason testified that he could not recall any occasion after his May 2001 meeting with Fasold where Fasold had refused to work overtime. The fact that Bason (or for that matter any other of the Defendants) could not recall any instances wherein Fasold refused overtime after May 2001 is particularly telling considering that Fasold was not fired until January 2002. Thus, a reasonable factfinder could choose to discredit the Defendants’ assertion that they fired Fasold, at least in part, due to his refusal to work overtime.
Although Defendants argue that they terminated Fasold due in large part to his behavior during the December 14, 2001, Cheltenham controlled narcotics delivery and arrest, the circumstances surrounding that occurrence are rife with disputed issues of material fact. Specifically, material disputes of fact exist respecting whether Fasold had received Bason’s pre-event approval to leave the scene early, the content of the later conversation wherein Fasold informed Bason that he was leaving the scene early, and whether Bason objected when Fasold told him that he was leaving the scene early. If these disputes of fact are resolved in Fasold’s favor (a permissible outcome on the state of the record), a reasonable factfinder could conclude that Defendants’ assertion that they fired Fa-sold because of his December 14, 2001 actions at Cheltenham is merely a post hoc fabrication created to provide cover for an unlawful firing.
Finally, we conclude that Fasold raised sufficient evidence to refute Defendants' assertion that his firing was based in part on his failure to submit proper leave forms. Specifically, Fasold has presented evidence tending to show that, in the past, when detectives with the District Attorney's Office neglected to submit the proper leave forms, their superiors did not reprimand-let alone fire-them, but simplyre-minded the errant detectives to fill out and submit the requisite forms.
We disagree with our dissenting colleague’s view of the applicable law and the facts on record. Judge Aldisert states that, under the majority’s view, a plaintiff may go to trial “without any affirmative or direct evidence of discrimination whatsoever.” Dissent op. at 191. That is not only the majority’s view; it is also the view of the Supreme Court of the United States. In Reeves, the Court rejected the view of those circuits that had granted summary judgment for the employer on the ground that the terminated employee had failed to [187] prove more than employer pretext (the “pretext plus” cases). Citing its prior decision in St. Mary’s Honor Ctr. v. Hicks, 509 U.S. 502, 511, 113 S.Ct. 2742, 125 L.Ed.2d 407 (1993), the Court reaffirmed its holding that the factfinder’s disbelief of the employer’s explanation plus proof of the elements of the prima facie case may be enough for the factfinder to infer the ultimate fact of discrimination. Reeves, 530 U.S. at 146-47, 120 S.Ct. 2097. No affirmative or direct evidence of discrimination is required, a principle the dissent purportedly accepts.
Defendants proffered four reasons for Fasold’s termination. We have set forth above Fasold’s evidence from which the jury could find pretextual the Defendants’ proffered explanations that Fasold was terminated because he generated insufficient numbers of arrests and investigations, was unwilling to work overtime, and failed to submit proper leave forms. Although the dissent essentially skips over these proffered reasons, we note that the jury’s disbelief of these reasons would be enough for the jury to discredit the Defendants’ explanation. Brewer v. Quaker State Oil Ref. Corp., 72 F.3d 326, 332-34 (3d Cir.1995).
Instead, the dissent focuses on what it views as the central reason for Fasold’s termination, his early departure from the Cheltenham investigation, which was only one of the four reasons given by Defendants for Fasold’s termination. It is indisputable that summary judgment cannot be granted to the employer if there is a genuine issue of material fact. Brewer, 72 F.3d at 329-31. The dissent argues that Fasold has not shown a disputed issue of material fact, merely a disputed interpretation. With respect, that is not what the record shows.
As we noted earlier, Fasold testified that he had advised Defendant Bason, his supervisor, that he might need to leave early, notified Bason when he was about to leave, and received Bason’s approval. Specifically, he testified that Bason replied at his first notification “ok,” and asked no questions. App. at 131. After the arrest occurred and he believed that the matter was under control, he phoned Bason again, this time from the scene, and apprised him of the situation and told him he was going to leave. Bason did not object. Bason’s testimony is to the contrary. He denied that he had initially given Fasold permission; instead, he testified that he told Fa-sold during the second phone call that he believed Fasold had left the scene too early and before the work was completed. App. at 616-18.
It is evident that this dispute, whether Fasold had permission to leave the scene, is a material issue of fact. A jury could conclude from the conflicting testimony that Defendants’ reference to Fasold’s actions vis-a-vis the Cheltenham investigation as the basis for his termination was pretextual.
Moreover, the suggestion that Fasold’s early departure gave the suspect the opportunity to retrieve the funds from a hidden safe deposit box to the prejudice of the prosecution is rebutted by contrary testimony in the record. The dissent fails to acknowledge Fasold’s assertion that his presence could not have changed the situation. In the first place, when he left the scene there were experienced law enforcement officials still present, including, inter alia, a state trooper with more than six years experience investigating narcotics crimes, at least two postal inspectors, a Philadelphia detective who had been specifically assigned to a joint federal-state narcotics task force, and a detective and two officers from the Cheltenham police force. Moreover, it was Friday evening by the time the suspect was arrested and processed. The safe deposit keys were [188] hidden in a pocket in a computer bag and were not discovered during the search of the car. They were found only on the following Monday during an'inventory of the seized items. Fasold claims there was no way the investigators could have identified the bank or the branch at which the safe deposit boxes were located on Friday. It took several days to locate and gain access to the boxes which were under a corporate name. App. at 502-17.
We do not suggest that a trier of fact would necessarily accept Fasold’s explanation, but we cannot conclude as a matter of law that if the jury does credit Fasold it would not also find that Defendants’ explanation for his termination was implausible. There is certainly enough on the record to constitute a material issue of fact between Fasold and Defendants on this issue.
In summary, Fasold’s prima facie case, combined with the evidence that is capable of refuting Defendants’ asserted nondis-eriminat'ory reasons, would allow (but certainly not require)12 a factfinder to determine that Defendants fired Fasold because of his age. Reeves, 530 U.S. at 148, 120 S.Ct. 2097; Sheridan, 100 F.3d at 1067. Thus, the District Court erred in granting summary judgment for Defendants on Fa-sold’s age discrimination claims.
IV.
The District Court also entered summary judgment in favor of Defendants ón Fasold’s retaliation claims. In the absence of direct evidence of retaliation, retaliation claims under both the ADEA13 and the PHRA14 typically proceed under the McDonnell Douglas framework. See generally Fogleman v. Mercy Hosp., Inc., 283 F.3d 561, 567-68 (3d Cir.2002); cf. Farrell v. Planters Lifesavers Co., 206 F.3d 271, 278-79 (3d Cir.2000) (analyzing retaliation claim brought under Title VII of the Civil Rights Act of 1964, 42 U.S.C. § 2000e et seq., and applying McDonnell Douglas framework); Mroczek v. Bethlehem Steel Corp., 126 F.Supp.2d 379, 387 (E.D.Pa.2001) (same).
To establish a prima facie case of proscribed retaliation under either the ADEA or the PHRA, a plaintiff must show: (1) that s/he engaged in a protected employee activity; (2) that s/he was subject to adverse action by the employer either subsequent to or contemporaneous with the protected activity; and (3) that there is a causal connection between the protected activity and the adverse action. Fogleman, 283 F.3d at 567-68. Here, there is no dispute that Fasold engaged in a protected employee activity in that he filed a complaint with the EEOC and the PHRC. Cf. Schmidt v. Montgomery Kone, Inc., 69 F.Supp.2d 706, 713 (E.D.Pa.1999) (“Defendant does not contest that filing an age discrimination charge with the EEOC [189] and PHRC is protected employee conduct”)- Moreover, Fasold was subject to an adverse employment decision — the September 11, 2002 denial of his Level II grievance. The District Court, however, held that Fasold failed to present any evidence of a “causal link” between Fasold’s filing of an administrative complaint and the denial of his grievance and thus had not established a prima facie case of retaliation.
The record and the applicable law are to the contrary. At the time Fasold initiated proceedings with the EEOC and the PHRC, Defendants had already terminated him and refused to grant him any relief under the Level I grievance procedure. Thus, the only adverse employment decision to occur after Fasold’s initiation of administrative action was Castor’s denial of relief on the Level II grievance proceeding. Referencing this sequence of events, the District Court stated: “Defendants’ decision not to rehire [Fasold] after his second grievance proceeding was merely an affirmation of [their] prior decisions which,” due to their predating of Fasold’s EEOC and PHRC filing, were obviously not based on his “age discrimination complaint.” App. at 8. The District Court thus held that the denial of Fasold’s Level II grievance was merely a reassertion of the prior decision to terminate him. The Court continued by stating that even if the Defendants considered Fasold’s pending claims in denying the grievance, the denial of Fasold’s Level II grievance was not causally connected to Fasold’s filing of the administrative claim.
We are not persuaded by the District Court’s analysis. Even when an employer’s underlying employment decision was not based on an impermissible ground, the employer may not deny the employee’s resultant grievance because the employee had sought administrative relief under the federal or state procedure. Cf. Equal Employment Opportunity Comm’n v. Bd. of Governors of State Colls. & Univs., 957 F.2d 424, 430 (7th Cir.1992) (“The Board may not deny grievance proceedings on the basis that employees have filed protected ADEA claims.”). Thus, even if Defendants were justified in firing Fasold and denying his Level I grievance,15 they would not be free from liability if they denied Fasold’s Level II grievance because he had filed an administrative complaint.16
Moreover, stripped of its erroneous underlying premise, the District Court’s holding that Fasold failed to present evidence of a causal connection must fall. See generally Kachmar v. SunGard Data Sys., Inc., 109 F.3d 173, 178 (3d Cir.1997) (“The element of causation, which necessarily involves an inquiry into the motives of an employer, is highly context-specific.”). First, there is a “temporal proximity” between Fasold’s protected act and the challenged employment decision. Farrell v. Planters Lifesavers Co., 206 F.3d 271, 280 (3d Cir.2000). Fasold filed his admin[190] istrative claim on June 21, 2002. Castor denied Fasold’s grievance on September 11, 2002, less than three months later. We have held that when only a short period of time separates an aggrieved employee’s protected conduct and an adverse employment decision, such temporal proximity may provide an evidentiary basis from which an inference of retaliation can be drawn. Kachmar, 109 F.3d at 178.
Second, Castor specifically questioned Fasold regarding his pending age discrimination claims during the August 20, 2002 Level II grievance procedure and specifically mentioned Fasold’s pending claims in his September 11, 2002 letter denying the grievance. Moreover, during his deposition, Castor conceded that Fasold’s administrative complaint had “irritated” him and caused him to view Fasold as suspect. App. at 578. Therefore, we cannot discount the possibility that Castor’s irritation with Fasold’s pending administrative claims influenced the calculus Castor made in his decision to deny the Level II grievance.
We conclude that Fasold has shown evidence sufficient to support an inference by the trier Of fact of a causal link between his filing of an administrative complaint (which is protected action) and Castor’s denial of Fasold’s Level II grievance. Consequently, we hold that the District Court erred in ruling that Fasold failed to establish a prima facie showing of retaliation for purposes of the ADEA and the PHRA. We will thus reverse the District Court’s order granting summary judgment on Fasold’s retaliation claims.
V.
For the reasons set forth, we will reverse the decision of the District Court and remand for additional proceedings consistent with this opinion.