# HARBOR ETF TRUST (EFFE)

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

- Reporting holders: 2
- Reported value: $141.8M
- 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/) | $141.5M | 5,140,000 | 0.3% | 6 |
| [JANE STREET GROUP, LLC](https://holderbook.com/funds/1595888-jane-street-group-llc/) | $335.9K | 12,204 | 0.0% | 6 |

## Quarter by quarter

| Quarter | Holders | Reported value |
|---|---|---|
| Q2 2026 | 2 | $141.8M |
| Q1 2026 | 2 | $117.7M |
| Q4 2025 | 2 | $119.0M |
| Q3 2025 | 2 | $123.4M |
| Q2 2025 | 2 | $117.0M |
| Q1 2025 | 2 | $106.5M |
| Q2 2019 | 8 | $4.4M |
| Q1 2019 | 7 | $2.2M |
| Q4 2018 | 6 | $1.5M |