# HARBOR ETF TRUST (EFFI)

> Institutional ownership reported to the SEC as of Q2 2026, from Form 13F filings. Source: https://holderbook.com/stocks/EFFI/

- Reporting holders: 6
- Reported value: $142.7M
- Held through calls: 0.0%
- Held through puts: 0.0%

A 13F reports long US equity positions only. Shorts, bonds, foreign listings and cash are not visible here, and positions are disclosed up to 45 days after the quarter ends.

## Largest holders

| Manager | Value | Shares | Share of their book | Quarters held |
|---|---|---|---|---|
| [STATE OF WISCONSIN INVESTMENT BOARD](https://holderbook.com/funds/854157-state-of-wisconsin-investment-board/) | $139.5M | 5,500,000 | 0.3% | 7 |
| [Gateway Wealth Partners, LLC](https://holderbook.com/funds/1966037-gateway-wealth-partners-llc/) | $2.1M | 82,552 | 0.1% | 2 |
| [FMR LLC](https://holderbook.com/funds/315066-fmr-llc/) | $719.3K | 28,365 | 0.0% | 4 |
| [JANE STREET GROUP, LLC](https://holderbook.com/funds/1595888-jane-street-group-llc/) | $389.7K | 15,368 | 0.0% | 2 |
| [INTERNATIONAL ASSETS INVESTMENT MANAGEMENT, LLC](https://holderbook.com/funds/1818604-international-assets-investment-management-llc/) | $25.3K | 1,000 | 0.0% | 3 |
| [UBS Group AG](https://holderbook.com/funds/1610520-ubs-group-ag/) | $507 | 20 | 0.0% | 3 |

## Quarter by quarter

| Quarter | Holders | Reported value |
|---|---|---|
| Q2 2026 | 6 | $142.7M |
| Q1 2026 | 6 | $135.1M |
| Q4 2025 | 4 | $133.6M |
| Q3 2025 | 2 | $130.8M |
| Q2 2025 | 1 | $126.3M |
| Q1 2025 | 2 | $111.2M |
| Q4 2024 | 1 | $49.2M |