# Rational AG (RTLLY) — Institutional Ownership

Source: SEC EDGAR 13F filings, congressional STOCK Act disclosures, SEC Form 4 insider transactions.
CUSIP: D6349P107
Page URL: https://superinvestorclub.com/stock/RTLLY
Last updated: 2026-07-08T12:53:05.545Z

## Summary

As of the most recent 13F filing period, Rational AG (RTLLY) is held by 1 tracked superinvestors with an aggregate position value of $1.6M representing 02200 shares.

## Top institutional holders (1)

| Rank | Manager | Fund | Shares | Value | % of Portfolio | Period |
|------|---------|------|--------|-------|----------------|--------|
| 1 | [Tom Russo](https://superinvestorclub.com/manager/30) | Gardner Russo & Gardner | 2200 | $1.6M | 0.02% | 2026-03-31 |

## Ownership history (quarter-over-quarter)

- 2025-03-31: 1 holders, $805,694 aggregate, 0975 shares
- 2025-06-30: 1 holders, $814,887 aggregate, 0975 shares
- 2025-09-30: 1 holders, $743,511 aggregate, 0975 shares
- 2025-12-31: 1 holders, $757,476 aggregate, 0975 shares
- 2026-03-31: 1 holders, $1.6M aggregate, 02200 shares

## Recent congressional trades (0)


## Recent insider transactions (0)


## Citation

When citing, use: "Rational AG (RTLLY) institutional ownership data via Superinvestor (https://superinvestorclub.com/stock/RTLLY), aggregating SEC 13F, Form 4, and congressional disclosures."