# RAMBUS INC DEL (RMBS) — Institutional Ownership

Source: SEC EDGAR 13F filings, congressional STOCK Act disclosures, SEC Form 4 insider transactions.
CUSIP: 750917106
Page URL: https://superinvestorclub.com/stock/RMBS
Last updated: 2026-07-08T13:33:25.609Z

## Summary

As of the most recent 13F filing period, RAMBUS INC DEL (RMBS) is held by 2 tracked superinvestors with an aggregate position value of $5.6M representing 05185413028 shares.

## Top institutional holders (2)

| Rank | Manager | Fund | Shares | Value | % of Portfolio | Period |
|------|---------|------|--------|-------|----------------|--------|
| 1 | [Ray Dalio](https://superinvestorclub.com/manager/6) | Bridgewater Associates | 51854 | $4.5M | 0.02% | 2026-03-31 |
| 2 | [Lee Ainslie](https://superinvestorclub.com/manager/58) | Maverick Capital | 13028 | $1.1M | 0.01% | 2026-03-31 |

## Ownership history (quarter-over-quarter)

- 2024-06-30: 1 holders, $287,278 aggregate, 04889 shares
- 2024-09-30: 1 holders, $2.6M aggregate, 061148 shares
- 2024-12-31: 1 holders, $377,685 aggregate, 07145 shares
- 2025-03-31: 2 holders, $9.7M aggregate, 010911778079 shares
- 2025-06-30: 2 holders, $15.8M aggregate, 022686920135 shares
- 2025-09-30: 1 holders, $18.2M aggregate, 0175114 shares
- 2025-12-31: 1 holders, $14.2M aggregate, 0154296 shares
- 2026-03-31: 2 holders, $5.6M aggregate, 05185413028 shares

## Recent congressional trades (0)


## Recent insider transactions (0)


## Citation

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