SES β€” SES AI CORPORATION

Ownership history in Stonebrook Private Inc.  Β·  3 quarters on record

AI Ownership Summary

Stonebrook Private Inc. reported SES AI CORPORATION (SES) in 3 quarterly 13F filings from 2025 Q1 through 2025 Q3. 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 Stonebrook Private Inc.'s position in SES AI CORPORATION, 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
2025 Q3

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

High-water mark
Peak Conviction
0.0% in 2025 Q3

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

Time in book
Holding Window
2025 Q1 to 2025 Q3

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.

How Stonebrook Private Inc. held SES β€” position size vs. price
% of Fund (quarterly)    SES price (quarter-end, indexed to 100)
πŸ“‹ Quarterly Holdings History 3 quarters  β–Ύ
Quarter Action Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2025 Q3 REDUCED 10,263 -215 -2.1% 0.00% $17K 2025-11-10 $2.42
2025 Q2 REDUCED 10,478 -645 -5.8% 0.00% $9K 2025-08-11 $1.10
2025 Q1 INITIATED 11,123 β€” β€” 0.00% $6K 2025-04-30 $0.90

FAQ About Stonebrook Private Inc. and SES

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

How long has Stonebrook Private Inc. reported owning SES?

Stonebrook Private Inc. reported SES across 3 quarterly 13F filings, from 2025 Q1 through 2025 Q3.

What was the largest reported SES position in Stonebrook Private Inc.'s portfolio?

The largest reported portfolio weight for SES was 0.00% in 2025 Q3.

What is the latest reported SES position on this page?

The most recent filing on this page is 2025 Q3, when Stonebrook Private Inc. reported 10,263 shares, equal to 0.00% of portfolio, with an estimated market value of $17K.

What does the chart on this SES ownership page compare?

The chart compares Stonebrook Private Inc.'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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