Harbor Osmosis Ire ETFEFFIETF
13F holders, Q1 2026 (March 31)6holders +2
2new positions
0sold out
$23.71avg. 13F price*
At the end of Q1 2026, 6 institutions reported holding Harbor Osmosis Ire ETF (EFFI) in their 13F filings, up 2 from Q4 2025. 2 opened new positions and 0 sold out. The largest holders were State of Wisconsin Investment Board ($130.4M), Gateway Wealth Partners, LLC ($3.6M) and FMR LLC ($600K).
- Company
- Harbor Osmosis Ire ETF
- CUSIP
- 41151J729
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 2 | $4.1M |
| Exits | 0 | $0 |
All 13F filers, Q4 2025 → Q1 2026: 172,359 shares bought and 598 shares sold, net +171,761 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 6 holders
| State of Wisconsin Investment Board | 0.30% | No change | 5,500,000 | $130.4M |
| Gateway Wealth Partners, LLC | 0.14% | New | 153,376 | $3.6M |
| FMR LLC | 0.00% | Reduce -2.3% | 25,301 | $600K |
| Jane Street Group, LLC | 0.00% | New | 18,915 | $449K |
| International Assets Investment Management, LLC | 0.00% | No change | 1,000 | $24K |
| UBS Group AG | 0.00% | Add +6800.0% | 69 | $2K |
"% of holder's portfolio" is EFFI's weight in each manager's 13F, not the share of Harbor Osmosis Ire ETF the manager owns.