Marco Munguia, individually and on behalf of all others similarly situated v. aTyr Pharma Inc., and Sanjay S. Shukla; John King, individually and on behalf of all others similarly situated v. aTyr Pharma Inc., and Sanjay S. Shukla

CourtDistrict Court, S.D. California
DecidedFebruary 9, 2026
Docket3:25-cv-02826
StatusUnknown

This text of Marco Munguia, individually and on behalf of all others similarly situated v. aTyr Pharma Inc., and Sanjay S. Shukla; John King, individually and on behalf of all others similarly situated v. aTyr Pharma Inc., and Sanjay S. Shukla (Marco Munguia, individually and on behalf of all others similarly situated v. aTyr Pharma Inc., and Sanjay S. Shukla; John King, individually and on behalf of all others similarly situated v. aTyr Pharma Inc., and Sanjay S. Shukla) is published on Counsel Stack Legal Research, covering District Court, S.D. California primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

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Marco Munguia, individually and on behalf of all others similarly situated v. aTyr Pharma Inc., and Sanjay S. Shukla; John King, individually and on behalf of all others similarly situated v. aTyr Pharma Inc., and Sanjay S. Shukla, (S.D. Cal. 2026).

Opinion

1 2 3 4 UNITED STATES DISTRICT COURT 5 SOUTHERN DISTRICT OF CALIFORNIA 6 7 8 MARCO MUNGUIA, Case No.: 3:25-cv-02681-WQH-SBC individually and on behalf of all 9 others similarly situated, 10 Plaintiff,

11 v. 12 aTyr PHARMA Inc., and

13 SANJAY S. SHUKLA,

14 Defendants.

15 __________________________________ 16 Case No.: 3:25-cv-02826-WQH-SBC JOHN KING,

17 individually and on behalf of all others

similarly situated, 18 Plaintiff, 19

20 v.

21 aTyr PHARMA Inc., and

SANJAY S. SHUKLA, 22 Defendants. ORDER 23 HAYES, Judge: 24 The matter before the Court is the Joint Motion to Consolidate Cases, Appoint 25 Counsel, and Appoint Co-Lead Plaintiffs filed by Andrea Holliday Bloom, Joshua Bloom, 26 Insun Lee, Anthony Fairris, and Karyn Fairris. (ECF No. 18.) 27

28 1 I. PROCEDURAL HISTORY 2 On October 9, 2025, Plaintiff Marco Munguia filed a Complaint against Defendants 3 aTyr Pharma Inc. (“aTyr”) and Sanjay S. Shukla (together, “Defendants”) claiming 4 violations of federal securities laws related to Defendants’ development of a pharmaceutical 5 product named Efzofitimod. (ECF No. 1, Munguia v. aTyr Pharma Inc. et al, Case No. 6 3:25-cv-02681-WQH-SBC (“this action” or “the Munguia action”).)1 Plaintiff Munguia’s 7 Complaint seeks damages on behalf of all investors who purchased or acquired aTyr 8 common stock during the period between January 16, 2025, and September 12, 2025. Id. 9 at 2. 10 On October 22, 2025, Plaintiff John King filed a similar complaint in the Southern 11 District of California stating claims against Defendants for violations of federal securities 12 laws related to the development of Efzofitimod. (ECF No. 1, King v. aTyr Pharma Inc. et 13 al, Case No. 3:25-cv-02826-WQH-SBC (the “King action”).) Plaintiff King’s Complaint 14 seeks damages on behalf of all investors who purchased or acquired aTyr common stock, 15 call options on aTyr common stock, and/or put options on aTyr common stock during the 16 period between November 7, 2024, and September 12, 2025. Id. at 2. 17 On December 8, 2025, Movant Michael Todd filed a motion in this action seeking 18 consolidation of these two cases, appointment as lead plaintiff, and approval of his legal 19 representatives as lead counsel in the consolidated action. (ECF No. 4.) On December 17, 20 2025, Movant Michael Todd withdrew that motion. (ECF No. 10.) 21 On December 8, 2025, Movant Wallace Madewell filed a motion seeking 22 consolidation, appointment as lead plaintiff, and approval of lead counsel. (ECF No. 5.) On 23 the same day, Movant Wallace Madewell filed an identical motion in the King action. (ECF 24 No. 5, King v. aTyr Pharma Inc. et al, Case No. 3:25-cv-02826-WQH-SBC.) On December 25 26

27 1 Unless otherwise indicated, all citations to docket entries in this Order refer to filings in the Munguia 28 1 29, 2025, Movant Wallace Madewell withdrew those motions. (ECF No. 13; ECF No. 6, 2 King v. aTyr Pharma Inc. et al, Case No. 3:25-cv-02826-WQH-SBC.) 3 On December 8, 2025, Movants Daniel Gron and Stanley Mwaura filed a motion 4 seeking appointment as co-lead plaintiffs and approval of co-lead counsel. (ECF No. 6.) 5 On January 5, 2026, Movants Daniel Gron and Stanely Mwaura filed a Notice of Non- 6 Opposition. (ECF No. 17.) 7 On December 8, 2025, Movant Benjamin Pease filed a motion seeking 8 consolidation, appointment as lead plaintiff, and approval of lead counsel. (ECF No. 7.) 9 On December 29, 2025, Movant Benjamin Pease withdrew that motion. (ECF No. 14.) 10 On December 8, 2025, Movants Andrea Holliday Bloom and Joshua Bloom 11 (together, “Bloom Family”) filed a motion seeking consolidation, appointment as lead 12 plaintiff, and approval of lead counsel. (ECF No. 8.) 13 On December 8, 2025, Movants Insun Lee (“Lee”), Anthony Fairris, and Karyn 14 Fairris (together, “Fairris Family”) filed a motion seeking consolidation, appointment as 15 co-lead plaintiffs, and approval of lead counsel. (ECF No. 9.) On December 29, 2025, 16 Movants Insun Lee and Fairris Family filed a Notice of Non-Opposition indicating their 17 assent to the appointment of Bloom Family as lead plaintiff. (ECF No. 15.) 18 On January 5, 2026, Movants Bloom Family, Fairris Family, and Lee (together, 19 “Moving Plaintiffs”) filed a joint motion (the “Joint Motion”) seeking consolidation, 20 appointment as co-lead plaintiffs, and approval of their respective legal representatives— 21 Hagens Berman Sobol Shapiro LLP (“Hagens Berman”) and Pomerantz LLP 22 (“Pomerantz”)—as co-lead counsel in this action. (ECF No. 18.) 23 II. LEGAL STANDARD 24 A. Consolidation 25 Federal Rule of Civil Procedure 42 states that, “[i]f actions before the court involve 26 a common question of law or fact, the court may . . . consolidate the actions.” Fed. R. Civ. 27 P. 42(a)(2). The United States Supreme Court has written that federal district courts “enjoy 28 substantial discretion in deciding whether and to what extent to consolidate cases.” Hall v. 1 Hall, 584 U.S. 59, 77 (2018). The Ninth Circuit has endorsed the same principle. In re 2 Adams Apple, 829 F.2d 1484, 1487 (9th Cir. 1987) (“[C]onsolidation is within the broad 3 discretion of the district court.”); Pierce v. Cnty. of Orange, 526 F.3d 1190, 1203 (9th Cir. 4 2008); Invs. Rsch. Co. v. U.S. Dist. Ct. for Cent. Dist. of California, 877 F.2d 777, 777 (9th 5 Cir. 1989). 6 Consolidation is a tool used to promote the efficiency of judicial proceedings. 7 “[C]onsolidation is permitted as a matter of convenience and economy in administration, 8 but does not merge the suits into a single cause, or change the rights of the parties, or make 9 those who are parties in one suit parties in another.” Johnson v. Manhattan Ry. Co., 289 10 U.S. 479, 496 (1933). In exercising its discretion to order consolidation of multiple actions 11 presenting common issues of law or fact under Rule 42(a), a district court “weighs the 12 saving of time and effort consolidation would produce against any inconvenience, delay, 13 or expense that it would cause.” Huene v. U.S., 743 F.2d 703, 704 (9th Cir. 1984); see also 14 Zhu v. UCBH Holdings, Inc., 682 F. Supp. 2d 1049, 1052 (N.D. Cal. 2010) (A “[c]ourt 15 should weigh the interest of judicial convenience against the potential for delay, confusion 16 and prejudice.”). 17 Under the Private Securities Litigation Reform Act of 1995 (“PSLRA”), 15 U.S.C. 18 §78u-4, et seq., a district court must adjudicate any motions to consolidate before 19 appointing a lead plaintiff in a securities class action brought under the Securities and 20 Exchange Act of 1934 (the “Exchange Act”). Id. at § 78u-4(a)(3)(B)(ii) (“If more than one 21 action on behalf of a class asserting substantially the same claim or claims arising under 22 this chapter has been filed, and any party has sought to consolidate those actions for pretrial 23 purposes or for trial, the court shall not make the determination required by clause (i) until 24 after the decision on the motion to consolidate is rendered. As soon as practicable after 25 such decision is rendered, the court shall appoint the most adequate plaintiff as lead 26 plaintiff for the consolidated actions in accordance with this paragraph.”); see also 27 Richardson v. TVIA, Inc., No. C 06 06304 RMW, 2007 WL 1129344, at *2 (N.D. Cal. Apr. 28 16, 2007). 1 B.

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Marco Munguia, individually and on behalf of all others similarly situated v. aTyr Pharma Inc., and Sanjay S. Shukla; John King, individually and on behalf of all others similarly situated v. aTyr Pharma Inc., and Sanjay S. Shukla, Counsel Stack Legal Research, https://law.counselstack.com/opinion/marco-munguia-individually-and-on-behalf-of-all-others-similarly-situated-casd-2026.