# Boston Partners Long/Short Research Fund

Boston Partners Long/Short Research Fund is a registered fund series of RBB Fund, Inc. (series S000030191). Net assets $588.1M as of 2026-05-31.

## Profile

- Series ID: S000030191
- Registrant: RBB Fund, Inc.
- LEI: 5493006PQCQNOP39PQ42
- Net assets: $588.1M
- Total assets: $695.1M
- As of: 2026-05-31

## Advisers

- [Boston Partners Global Investors, Inc. (Advisor)](https://search.stillhousedata.com/firm/124982)

## Top holdings (200 reported)

_Showing 15 of 200 holdings by value._

| Holding | Ticker | Value | % of fund |
| --- | --- | --- | --- |
| Flex Ltd | FLEX | $11.2M | 189.63% |
| Seagate Technology Holdings PL | STX | $8.6M | 146.66% |
| [Frontdoor Inc](https://search.stillhousedata.com/security/35905A109) | FTDR | $8.2M | 140.15% |
| [JPMorgan Chase & Co](https://search.stillhousedata.com/security/46625H100) | JPM | $7.5M | 127.00% |
| [AbbVie Inc](https://search.stillhousedata.com/security/00287Y109) | ABBV | $6.4M | 109.06% |
| [Wells Fargo & Co](https://search.stillhousedata.com/security/949746101) | WFC | $6.4M | 108.95% |
| [UnitedHealth Group Inc](https://search.stillhousedata.com/security/91324P102) | UNH | $6.1M | 103.49% |
| [Broadcom Inc](https://search.stillhousedata.com/security/11135F101) | AVGO | $6.0M | 101.45% |
| [Bank of America Corp](https://search.stillhousedata.com/security/060505104) | BAC | $5.7M | 97.06% |
| [Lam Research Corp](https://search.stillhousedata.com/security/512807306) | LRCX | $5.7M | 96.35% |
| [Micron Technology Inc](https://search.stillhousedata.com/security/595112103) | MU | $5.6M | 96.03% |
| [L3Harris Technologies Inc](https://search.stillhousedata.com/security/502431109) | LHX | $5.4M | 92.61% |
| [Booking Holdings Inc](https://search.stillhousedata.com/security/09857L108) | BKNG | $5.3M | 89.40% |
| [Brink's Co/The](https://search.stillhousedata.com/security/109696104) | BCO | $5.2M | 88.91% |
| [Jacobs Solutions Inc](https://search.stillhousedata.com/security/46982L108) | J | $5.0M | 84.88% |

## Net asset history

| Report date | Net assets |
| --- | --- |
| 2026-05-31 | $588.1M |
| 2026-02-28 | $605.4M |
| 2025-11-30 | $564.7M |
| 2025-08-31 | $538.9M |
| 2025-05-31 | $519.8M |
| 2025-02-28 | $595.8M |
| 2024-11-30 | $627.0M |
| 2024-08-31 | $592.6M |

## More

- [Registrant: RBB Fund, Inc.](https://search.stillhousedata.com/registrant/831114)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/fund/S000030191.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.