Current position

Renaissance Technologies LLC’s Ameren Corp (AEE) position

Reported position history, portfolio importance and verified filing changes from public SEC disclosures.

Renaissance Technologies LLCVerified through Q2 2026
Relationship snapshot

At a glance

The full verified relationship, including prior ownership episodes and exits where supported.

First reportedQ3 2013Earliest verified positive filing snapshot
Latest statusCurrent positionBased on the latest supported relationship state
Peak shares5.61MHighest verified quarter-end share count
Quarters reported32Verified quarters with shares above zero
What happened?

Renaissance Technologies LLC first reported Ameren Corp in Q3 2013. The reported position was increased and reduced across later filings. Renaissance Technologies LLC currently reports 438.20K shares. The latest verified filing showed: Bought 52.0% more.

Verified SEC history

Position over time

See the same verified relationship through reported shares, portfolio weight or reported value.

Metric

Gaps indicate periods that cannot be safely connected or where a verified corporate action changes the raw share scale. Stock price, when available, is market context and not a transaction price.

Key filing events

What changed

Latest filing plus the most meaningful reported changes. Unchanged quarters are collapsed by default.

Q2 2026
Bought 52.0% more+150.00K shares · 438.20K shares reported after the change
Filing context

Quarter-end price $113.04

Q4 2025
New position+240.80K shares · 240.80K shares reported
Filing context

Quarter-end price $99.86

Q1 2021
Sold the entire position−501.73K shares · No shares reported at quarter-end
Q4 2020
Sold 70.4% of the position−1.20M shares · 501.73K shares remained
Filing context

Quarter-end price $78.06

Q3 2020
Sold 48.2% of the position−1.58M shares · 1.70M shares remained
Filing context

Quarter-end price $79.08

Q2 2020
Sold 40.1% of the position−2.19M shares · 3.27M shares remained
Filing context

Quarter-end price $70.36

Portfolio importance

How important is Ameren Corp in Renaissance Technologies LLC’s reported portfolio?

Relative importance is measured only within the verified primary non-option reported portfolio for each quarter.

Current portfolio weight0.1%Q2 2026
Current rank#333of 3140 reported positions
Peak portfolio weight0.4%Q1 2020
Best historical rank#40Q3 2019
SEC evidence & methodology

SEC filing evidence

Market context and filing-derived values are kept separate from actual transaction prices, which 13F filings do not disclose.

Latest verified stock price$99.742026-09-23

Market context only; not an investor transaction price.

Latest filing quarter-end price$113.04Q2 2026

Derived from validated reported value and shares where supported.

Latest verified investor filingQ2 2026 · filed 2026-08-13
Open SEC filing ↗

Coverage is bounded to the institution’s top reported positions and material events rather than every security in each Form 13F. The filing reflects reportable U.S.-listed holdings, not Renaissance’s secret models, complete trading book, exact trade dates or execution prices.