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ATS-N/CA

Form ATS-N/CA correcting amendments

Form ATS-N/CA: a correcting amendment to Form ATS-N, filed promptly to fix information that was inaccurate when filed.

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133filings on EDGAR
2019first filed
16filed in 2026
2026-09-15latest filing
curl -H "Authorization: Bearer $SECFEED_KEY" \
  "https://secfeedapi.com/v1/filings?query=formType:%22ATS-N/CA%22&size=2"
import os, requests

r = requests.get(
    "https://secfeedapi.com/v1/filings",
    params={'query': 'formType:"ATS-N/CA"', 'size': '2'},
    headers={"Authorization": f"Bearer {os.environ['SECFEED_KEY']}"},
)
print(r.json())

What is ATS-N/CA?

Rule 304(a)(2)(i)(C) of Regulation ATS requires an NMS stock ATS to file a correcting amendment promptly after discovering that its Form ATS-N contained an error. EDGAR tags these ATS-N/CA.

About 130 correcting amendments have been filed since 2019.

Who files

NMS stock alternative trading systems.

When it is filed

Promptly after discovering an inaccuracy.

Filings per year

Every ATS-N/CA filing on EDGAR, counted from the SecFeed index. Updated daily.

2019: 8 filings2020: 14 filings2021: 15 filings2022: 12 filings2023: 20 filings2024: 25 filings2025: 23 filings2026: 16 filings2019202020252026

What is inside

SectionContents
Corrected itemsParts of the ATS-N that were wrong.

Get ATS-N/CA data with SecFeed

Search the filings with formType:"ATS-N/CA", read any document as text or PDF, and use these APIs for structured data:

Filing Search API

Search every SEC EDGAR filing since 1993 with Lucene-style queries over ticker, CIK, form type, filing date, company, SIC and 8-K items.

Text Search API

Search every word of every EDGAR filing and exhibit since 2001. Exact phrases, form type, CIK and date filters, results as JSON.

Latest ATS-N/CA filings

CompanyFormFiled
BARCLAYS CAPITAL INC.ATS-N/CA2026-09-15EDGAR ↗
INTELLIGENT CROSS LLCATS-N/CA2026-09-11EDGAR ↗
BLUE OCEAN ATS, LLCATS-N/CA2026-07-30EDGAR ↗
TMX ALPHA US, LLCATS-N/CA2026-07-16EDGAR ↗
CITIGROUP GLOBAL MARKETS INC.ATS-N/CA2026-07-09EDGAR ↗
CITIGROUP GLOBAL MARKETS INC.ATS-N/CA2026-06-26EDGAR ↗
INTELLIGENT CROSS LLCATS-N/CA2026-05-06EDGAR ↗
INTELLIGENT CROSS LLCATS-N/CA2026-04-30EDGAR ↗

Use cases

Related forms

ATS-NAlternative trading system disclosure

Form ATS-N disclosures of dark pools and other NMS stock alternative trading systems: order types, fees, segmentation and operator conflicts.

ATS-N/UAATS-N updating amendment

Form ATS-N/UA: an updating amendment to an NMS stock alternative trading system's Form ATS-N, required under Rule 304(a)(2)(i)(B).

FAQ

What is ATS-N/CA?

A correcting amendment to fix information in a Form ATS-N that was inaccurate.

How fast must it be filed?

Promptly after the error is discovered.

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