SEC ownership of eFFECTOR Therapeutics, Inc.

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001828522.

Comparable stake leader

Carlyle Group Inc.

Disclosed value leader

Carlyle Group Inc.

Comparable rows

0/21

Latest evidence

13 Jun 2024

Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 1 signal
Latest parsed ownership date
13 Jun 2024
Freshness: Most recent filing date in this holder set
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0001828522
Issuer location
Solana Beach, CA

Ownership snapshot

Top shareholders of eFFECTOR Therapeutics, Inc. (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
Carlyle Group Inc.
Disclosed value leader
Carlyle Group Inc.
Comparable rows
0/21
Latest evidence
13 Jun 2024
3/4/5 Highest disclosed value: $2,924,612 21 rows are not safely comparable across share classes. Showing 1-8 of 21 holder rows.

Quick read

Carlyle Group Inc. has the largest disclosed position value at $2.92M.

0 of 21 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Carlyle Group Inc.'s linked filing trail.
Disclosed position value Top 5
Carlyle Group Inc. $2.92M
Jonathan D. Root $2.74M
Column Group II GP, LP $2.61M
Presidio Management Group X LLC $2.49M
Locust Walk Sponsor, LLC $2.46M

Value bars compare disclosed positions; verify each figure against the linked filing evidence.

Detailed SEC evidence table Showing 1-8 of 21 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
Carlyle Group Inc.
3/4/5
10%+ Owner
class O/S missing
$2,924,612
4,822,114 shares
01 Aug 2022
Jonathan D. Root
3/4/5
Director, 10%+ Owner
class O/S missing
$2,744,147
4,524,562 shares
02 Dec 2021
Column Group II GP, LP
3/4/5
10%+ Owner
class O/S missing
$2,613,608
4,309,329 shares
25 Aug 2021
Presidio Management Group X LLC
3/4/5
10%+ Owner
class O/S missing
$2,492,418
4,109,509 shares
01 Aug 2022
Locust Walk Sponsor, LLC
3/4/5
10%+ Owner
class O/S missing
$2,460,116
4,056,250 shares
25 Aug 2021
SR ONE CAPITAL MANAGEMENT, LLC
3/4/5
10%+ Owner
class O/S missing
$1,104,688
1,821,415 shares
27 Nov 2023
Abingworth LLP
3/4/5
10%+ Owner
class O/S missing
40,000 shares
06 Oct 2021
Stephen T. Worland
3/4/5
Chief Executive Officer, Director
mixed-class rows
$58,883
114,987 shares
mixed-class rows
15 May 2024
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Forms 3/4/5 flow

Insider trading overview

Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 03 Aug 2025.

Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 0 Shares: 0
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 0 0 $0 $0 $0
3-6 0 0 $0 $0 $0
6-9 0 0 $0 $0 $0
9-12 0 0 $0 $0 $0

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-20 of 21 reporting-owner rows connected to eFFECTOR Therapeutics, Inc.. Open a relationship link for the CIK-to-CIK filing trail.

Rows
21
Largest Forms 3/4/5 holder
Carlyle Group Inc.
Net 12M change
$0
Latest report
13 Jun 2024
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
Carlyle Group Inc. 10%+ Owner $2,924,612 Mixed 01 Aug 2022
Jonathan D. Root Director, 10%+ Owner $2,744,147 Mixed 02 Dec 2021
Column Group II GP, LP 10%+ Owner $2,613,608 Mixed 25 Aug 2021
Presidio Management Group X LLC 10%+ Owner $2,492,418 Mixed 01 Aug 2022
Locust Walk Sponsor, LLC 10%+ Owner $2,460,116 Mixed 25 Aug 2021
SR ONE CAPITAL MANAGEMENT, LLC 10%+ Owner $1,104,688 Filing P/S 27 Nov 2023
Stephen T. Worland Chief Executive Officer, Director $58,883 Mixed 15 May 2024
Caroline M. Loewy Director $5,487 Mixed 13 Jun 2024
Michael Byrnes Chief Financial Officer $5,246 Mixed 15 May 2024
Brian M. Gallagher Jr. Director Mixed 13 Jun 2024
Christopher B. Ehrlich Director Mixed 13 Jun 2024
Barbara Klencke Director Mixed 13 Jun 2024
Douglas J. Warner Chief Medical Officer Mixed 19 Feb 2024
Kristen Harrington-Smith Director Mixed 13 Jun 2024
Premal Patel Chief Medical Officer Mixed 20 Jan 2022
Abingworth LLP 10%+ Owner Mixed 06 Oct 2021
Mayank Gandhi Chief Business Officer Mixed 17 Jan 2023
John W. Smither Director Mixed 22 Jun 2023
Laurence Lasky Director Mixed 06 Oct 2021
Elizabeth Bhatt Director Mixed 13 Jun 2024

Recent insider transactions for eFFECTOR Therapeutics, Inc.

Showing up to 300 recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % SEC-reported value SEC-reported price Shares Shares owned Date Ownership
No insider transactions were found in the last 12 months for this issuer.
* marks a reported price that did not pass the local price check.
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