Harbor Osmosis International Resource Efficient ETF
EFFI
4 hedge funds and large institutions have $134M invested in Harbor Osmosis International Resource Efficient ETF in 2025 Q4 according to their latest regulatory filings, with 2 funds opening new positions, 1 increasing their positions, reducing their positions, and closing their positions.
100% more funds holding
Funds holding: 2 → 4 (+2)
2% more capital invested
Capital invested by funds: $131M → $134M (+$2.81M)
0.03% more ownership
Funds ownership: 99.55% → 99.58% (+0.03%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
IAIM
International Assets Investment Management
Orlando,
Florida
|
+$24.3K |
| 2 |
Fidelity Investments
Boston,
Massachusetts
|
+$21.5K |
| 3 |
UBS Group
Zurich,
Switzerland
|
+$24 |
Top Sellers
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
1
State of Wisconsin Investment Board
Madison,
Wisconsin
| $133M | – | – | – |
|
|
2
Fidelity Investments
Boston,
Massachusetts
| $626K | +$21.5K | +884 | +4% |
|
|
IAIM
3
International Assets Investment Management
Orlando,
Florida
| $24.2K | +$24.3K | +1,000 | New |
|
|
4
UBS Group
Zurich,
Switzerland
| $24 | +$24 | +1 | New |
|
EFFI Hedge Fund Activity: Q4 2025 in Review
4 of the 8,227 institutional investors tracked by Wall St. Rank reported a position in Harbor Osmosis International Resource Efficient ETF (EFFI) for Q4 2025, worth a combined $134M — up 2.2% from $131M a quarter earlier.
Buyers outnumbered sellers: 2 funds opened new EFFI positions and 0 closed out — a net gain of 2 holders — while 1 added to existing stakes and 0 trimmed.
The largest buyer was International Assets Investment Management, opening a new position worth an estimated $24.3K.
- 4 institutional investors held Harbor Osmosis International Resource Efficient ETF (EFFI) as of Q4 2025, up from 2 in Q3 2025.
- Funds reported $134M of Harbor Osmosis International Resource Efficient ETF stock for Q4 2025, up 2.2% quarter-over-quarter.
- 2 funds opened new Harbor Osmosis International Resource Efficient ETF positions in Q4 2025 and 0 closed out, a net change of +2 holders.
- The largest Harbor Osmosis International Resource Efficient ETF buyer in Q4 2025 was International Assets Investment Management, an estimated $24.3K added.
Based on aggregated 13F filings for Q4 2025.