ACADIAN ASSET MANAGEMENT LLC SES — SES AI COR

Ownership history in ACADIAN ASSET MANAGEMENT LLC  ·  2 quarters on record

AI Ownership Summary

ACADIAN ASSET MANAGEMENT LLC reported SES AI COR (SES) in 2 quarterly 13F filings from 2025 Q3 through 2026 Q1. The latest visible filing shows SES at 0.00% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings.

What this SES ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was ACADIAN ASSET MANAGEMENT LLC's position in SES AI COR, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2026 Q1

SES was reported at 0.00% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.0% in 2026 Q1

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2025 Q3 to 2026 Q1

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

SES stock page ACADIAN ASSET MANAGEMENT LLC fund profile ACADIAN ASSET MANAGEMENT LLC full holdings
How ACADIAN ASSET MANAGEMENT LLC held SES — position size vs. price
% of Fund (quarterly)    SES price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 2 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q1 ADDED — — — 359,067 +294,982 +460.3% 0.00% $341 2026-05-13 $1.03
2025 Q3 INITIATED — — — 64,085 — — 0.00% $106K 2025-11-14 (Est.) $1.99

🏢 Other funds also holding SES

As of 2026 Q1 — sorted by position size

General Motors Holdings LLC 3Y 3.11% LGT Financial Advisors LLC 3Y 0.07% Cinctive Capital Management LP 3Y 0.06% CTC Alternative Strategies, Ltd. 3Y 7Y 0.06% Inspire Investing, LLC 3Y 7Y 0.04% Sitrin Capital Management LLC 3Y 7Y 0.03% GSA CAPITAL PARTNERS LLP 3Y 7Y 0.02% Diametric Capital, LP 3Y 7Y 0.02% HITE Hedge Asset Management LLC 3Y 7Y 0.02% TWO SIGMA ADVISERS, LP 3Y 7Y 0.01%

FAQ About ACADIAN ASSET MANAGEMENT LLC and SES

These are the practical questions this page is built to answer before you even open the full history table.

How long has ACADIAN ASSET MANAGEMENT LLC reported owning SES?

ACADIAN ASSET MANAGEMENT LLC reported SES across 2 quarterly 13F filings, from 2025 Q3 through 2026 Q1.

What was the largest reported SES position in ACADIAN ASSET MANAGEMENT LLC's portfolio?

The largest reported portfolio weight for SES was 0.00% in 2026 Q1.

What is the latest reported SES position on this page?

The most recent filing on this page is 2026 Q1, when ACADIAN ASSET MANAGEMENT LLC reported 359,067 shares, equal to 0.00% of portfolio, with an estimated market value of $341.

What does the chart on this SES ownership page compare?

The chart compares ACADIAN ASSET MANAGEMENT LLC's quarterly SES portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

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