Private company

eFFECTOR Therapeutics, Inc.

American pharmaceutical preparations company based in San Diego.

Last updated Oct 18, 2026.

Overview

  • IndustryPharmaceutical Preparations
  • HeadquartersSan Diego, United States
  • Incorporated inDE2
  • Business address142 North Cedros Avenue, Suite B, Solana Beach, Ca 920752
  • Filer category, Emerging growth company2

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Financials

From the company’s reports to the SEC. Every number links to the filing it came from.

Key numbers, fiscal 2023

-100.0%Revenue growth, 20233

Financial statements

Revenue453$0 in 2023
0$20.0M$40.0M$60.0M2020: $42.0M$42.0M20202021: $1.4M$1.4M2021−97%2022: $3.6M$3.6M2022+148%2023: $0$02023
Operating income453-$33.8M in 2023
-$40.0M-$20.0M0$20.0M2020: $15.8M$15.8M20202021: -$31.9M-$31.9M20212022: -$32.4M-$32.4M2022+2%2023: -$33.8M-$33.8M2023+4%
Net income453-$35.8M in 2023
-$40.0M-$20.0M0$20.0M2020: $14.2M$14.2M20202021: $15.8M$15.8M2021+11%2022: -$22.7M-$22.7M20222023: -$35.8M-$35.8M2023+58%
Fiscal year20192020202120222023
Revenue$42.0M4$1.4M5$3.6M3$03
Research and development$21.8M4$20.0M5$23.3M3$22.9M3
Operating income$15.8M4-$31.9M5-$32.4M3-$33.8M3
Interest$1.3M4$1.8M5$2.3M3$2.9M3
Income tax$351.0K4$05$03$03
Net income$14.2M4$15.8M5-$22.7M3-$35.8M3
Earnings per share$0.124$1.055-$13.763-$16.373
Earnings per share (diluted)$0.114$0.445-$13.763-$16.373

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Leadership

Who has led eFFECTOR Therapeutics, Inc., and when. Pick a name to see everywhere that person has worked.

Chief executive

  1. Christopher B. Ehrlich2021
  2. Stephen T. Worland2021–2024

President

  1. Stephen T. Worland2021–2022

Chief financial officer

  1. Daniel E. Geffken2021
2025
Board members and other officers (17)

Former names

  • Locust Walk Acquisition Corp.Nov 4, 2020 to Aug 25, 20212

Timeline

  1. Aug 27, 2021New chief executive Stephen T. Worland becomes CEO10
  2. Jan 7, 2021New chief executive Christopher B. Ehrlich becomes CEO9
  3. May 1, 2012Founded eFFECTOR Therapeutics, Inc. is founded27

Filings

283 filings to the SEC since October 2021: 3 annual reports, 8 quarterly reports, 50 major events, 104 insider forms, 16 large holders, 102 other. The latest 20:

  1. Aug 1, 2024EFFECT EDGAR
  2. Aug 1, 2024EFFECT EDGAR
  3. Aug 1, 2024EFFECT EDGAR
  4. Aug 1, 2024EFFECT EDGAR
  5. Jul 30, 202415-12G EDGAR
  6. Jul 30, 2024S-8 POS EDGAR
  7. Jul 30, 2024S-8 POS EDGAR
  8. Jul 30, 2024POS AM EDGAR
  9. Jul 30, 2024POS AM EDGAR
  10. Jul 30, 2024POS AM EDGAR
  11. Jul 30, 2024POS AM EDGAR
  12. Jun 26, 20248-K EDGAR
  13. Jun 25, 20248-K EDGAR
  14. Jun 24, 20248-K EDGAR
  15. Jun 14, 20248-K EDGAR
  16. Jun 13, 20244 EDGAR
  17. Jun 13, 20244 EDGAR
  18. Jun 13, 20244 EDGAR
  19. Jun 13, 20244 EDGAR
  20. Jun 13, 20244 EDGAR

The 283 filings since October 2021 can be filtered by form type and year here when JavaScript is on.

Every filing from the last three years, summarized. The full record is on SEC EDGAR.

Insider trades and holders

Large holders

Investors who own more than 5% must tell the SEC: a 13D if they may seek to influence the company, a 13G if they hold passively. 16 such filings since October 2021, the latest 10:

  1. Feb 14, 2024SC 13G/A
  2. Feb 14, 2024SC 13G/A
  3. Feb 9, 2024SC 13G/A
  4. Feb 5, 2024SC 13G/A
  5. Nov 22, 2023SC 13D/A
  6. Sep 15, 2023SC 13D/A
  7. Mar 7, 2023SC 13G
  8. Feb 14, 2023SC 13G/A
  9. Feb 13, 2023SC 13G/A
  10. Aug 19, 2022SC 13D/A

From Forms 4 and Schedules 13D and 13G filed with the SEC.

Sources

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