A Central Index Key (CIK) is a unique identifier assigned by the SEC to each filer.

Why are some filings missing?

New filings appear as the SEC updates EDGAR, and older records can vary by availability.

How often is this page updated?

Updates follow new EDGAR submissions and periodic data refreshes.

SEC EDGAR filings, ownership reports, and insider transactions for Eric Nierenberg.

Business address: Cra International, Inc., 200 Clarendon Street, Boston, MA, 02116-5092

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Eric Nierenberg has filed 4 SEC EDGAR filings since 06 Aug 2025

Recent SEC filings for Eric Nierenberg including 4, 3.

Form type	Document	Filing	Filing date	Reporting date	File number(s)
4	Open 4 document	View SEC filing for 4	16 Dec 2025	12 Dec 2025	000-24049
4	Open 4 document	View SEC filing for 4	16 Sep 2025	12 Sep 2025	000-24049
4	Open 4 document	View SEC filing for 4	06 Aug 2025	04 Aug 2025	000-24049
3	Open 3 document	View SEC filing for 3	06 Aug 2025	04 Aug 2025	000-24049

Eric Nierenberg files with the SEC under CIK 0002074844. This page aggregates EDGAR filings and related ownership activity.

What is a CIK?: A Central Index Key (CIK) is a unique identifier assigned by the SEC to each filer.
Why are some filings missing?: New filings appear as the SEC updates EDGAR, and older records can vary by availability.
How often is this page updated?: Updates follow new EDGAR submissions and periodic data refreshes.