Manager × security

Millburn Ridgefield LLC /DE/ IWB holdings history

ISHARES RUSSELL 1000 ETF · CUSIP 464287622 · CIK 1294571

This is the oldest quarter open without an account, so changes against the quarter before it are withheld. Sign in to see them.
Citable facts

As of 2026-06-30, Millburn Ridgefield LLC /DE/ reported 1.64M IWB (shares), valued at $670.66M, or 12.70% of its reported non-derivative portfolio. Filed 2026-07-21.

Verify history & sources →
Portfolio weight and quantity history
Reported portfolio weight
12.70%
Shares
1.64M
1,637,759
Reported value
$670.66M
USD

Shares decreased 0.24%; reported value increased 14.57%, and weight changed +0.11 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.

Left: % · Right: Shares · Independently scaled axes

Exact data and methodology

Axes scale independently; a crossing does not mean equal values. Weight uses each quarter's total reported non-derivative value. Same CUSIP; missing quarters are gaps, not zero. Revised history may include later disclosures.

QuarterWeightQuantitySource
Q2 202612.70%1,637,759SEC filing ↗Filed Jul 21, 2026
Q1 202612.59%1,641,733SEC filing ↗Filed Apr 22, 2026
Q4 202513.01%1,462,605SEC filing ↗Filed Feb 2, 2026
Q3 202512.79%1,465,713SEC filing ↗Filed Oct 30, 2025
Q2 202512.97%1,586,642SEC filing ↗Filed Jul 29, 2025
Q1 202512.59%1,693,608SEC filing ↗Filed Apr 15, 2025
Q4 202412.94%1,605,165SEC filing ↗Filed Feb 4, 2025
Q3 202412.59%1,527,628SEC filing ↗Filed Nov 14, 2024
Q2 202412.91%1,626,142SEC filing ↗Filed Aug 14, 2024
Q1 202412.34%1,547,720SEC filing ↗Filed Apr 26, 2024
Q4 202312.43%1,547,720SEC filing ↗Filed Feb 6, 2024
Q3 202312.40%1,627,918SEC filing ↗Filed Nov 2, 2023

History & evidence by quarter

QuarterWeightQuantityValueChange explainedSource
Q3 202312.40%1,627,918$382.41MThe prior quarter is outside the free window. Sign in for the comparison.SEC filing ↗
Filed Nov 2, 2023
Q4 202312.43%1,547,720$405.91MShares decreased 4.93%; reported value increased 6.14%, and weight changed +0.03 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Feb 6, 2024
Q1 202412.34%1,547,720$445.79MShares unchanged; reported value increased 9.83%, and weight changed -0.09 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Apr 26, 2024
Q2 202412.91%1,626,142$483.84MShares increased 5.07%; reported value increased 8.54%, and weight changed +0.57 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Aug 14, 2024
Q3 202412.59%1,527,628$480.27MShares decreased 6.06%; reported value decreased 0.74%, and weight changed -0.32 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Nov 14, 2024
Q4 202412.94%1,605,165$517.12MShares increased 5.08%; reported value increased 7.67%, and weight changed +0.35 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Feb 4, 2025
Q1 202512.59%1,693,608$519.50MShares increased 5.51%; reported value increased 0.46%, and weight changed -0.35 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Apr 15, 2025
Q2 202512.97%1,586,642$538.78MShares decreased 6.32%; reported value increased 3.71%, and weight changed +0.38 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Jul 29, 2025
Q3 202512.79%1,465,713$535.69MShares decreased 7.62%; reported value decreased 0.57%, and weight changed -0.18 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Oct 30, 2025
Q4 202513.01%1,462,605$546.20MShares decreased 0.21%; reported value increased 1.96%, and weight changed +0.22 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Feb 2, 2026
Q1 202612.59%1,641,733$585.38MShares increased 12.25%; reported value increased 7.17%, and weight changed -0.42 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Apr 22, 2026
Q2 202612.70%1,637,759$670.66MShares decreased 0.24%; reported value increased 14.57%, and weight changed +0.11 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Jul 21, 2026
Millburn Ridgefield LLC /DE/ · ISHARES RUSSELL 1000 ETF

Take these holdings further.

This page includes 12 of 12 reported holdings. Sign in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

  • Download CSV
  • Earlier quarters
  • Advanced screening & filtering
  • API & AI access
Already have an account?

+ New accounts get free API credits to explore data beyond ownership filings.

For AI agents & developers

The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account.

Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP.

MCP  https://api.akkrudata.ai/mcp

get_institutional_portfolio
{"cik":"1294571","quarter":"2026Q2","cusip":"464287622"}

get_institutional_manager_history
{"cik":"1294571","page_size":100}

Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.

MCP endpoint
https://api.akkrudata.ai/mcp
API / MCP documentation
/documents
llms.txt
/llms.txt
Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

13F reports quarter-end long positions in securities traded on US exchanges, filed by managers holding at least $100 million of such securities; it is not the manager's full portfolio, not assets under management, and value changes are not returns. Weights use the reported total value as denominator. Option rows show notional value, not premium or net exposure. Amendments are merged into the quarter when Akkru could match them.