Harbor International Compounders ETF
OSEA
69 hedge funds and large institutions have $356M invested in Harbor International Compounders ETF in 2026 Q1 according to their latest regulatory filings, with 10 funds opening new positions, 26 increasing their positions, 22 reducing their positions, and 9 closing their positions.
18% more repeat investments, than reductions
Existing positions increased: 26 | Existing positions reduced: 22
11% more first-time investments, than exits
New positions opened: 10 | Existing positions closed: 9
0% more funds holding
Funds holding: 69 → 69 (0)
1.38% less ownership
Funds ownership: 77.48% → 76.1% (-1.4%)
17% less funds holding in top 10
Funds holding in top 10: 6 → 5 (-1)
17% less capital invested
Capital invested by funds: $430M → $356M (-$74.4M)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
GIA
Gladstone Institutional Advisory
Palm Beach Gardens,
Florida
|
+$7.26M |
| 2 |
DE
Diversified Enterprises
Wilmington,
Delaware
|
+$6.55M |
| 3 |
Raymond James Financial
St Petersburg,
Florida
|
+$6.4M |
| 4 |
Corient Private Wealth
Miami,
Florida
|
+$4.63M |
| 5 |
PWS
Proactive Wealth Strategies
Marietta,
Georgia
|
+$4.01M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
AAS
Annex Advisory Services
Brookfield,
Wisconsin
|
-$86.6M |
| 2 |
SFS
Sunrise Financial Services
Burien,
Washington
|
-$3.99M |
| 3 |
LPL Financial
San Diego,
California
|
-$3.9M |
| 4 |
Focus Partners Wealth
Boston,
Massachusetts
|
-$2.18M |
| 5 |
WF
WinCap Financial
Boston,
Massachusetts
|
-$2.05M |
OSEA Hedge Fund Activity: Q1 2026 in Review
69 of the 8,187 institutional investors tracked by Wall St. Rank reported a position in Harbor International Compounders ETF (OSEA) for Q1 2026, worth a combined $356M — down 17% from $430M a quarter earlier.
Buyers outnumbered sellers: 10 funds opened new OSEA positions and 9 closed out — a net gain of 1 holder — while 26 added to existing stakes and 22 trimmed.
The largest buyer was Gladstone Institutional Advisory, opening a new position worth an estimated $7.26M. The largest seller was Annex Advisory Services, cutting an estimated $86.6M.
- 69 institutional investors held Harbor International Compounders ETF (OSEA) as of Q1 2026, unchanged from Q4 2025.
- Funds reported $356M of Harbor International Compounders ETF stock for Q1 2026, down 17% quarter-over-quarter.
- 10 funds opened new Harbor International Compounders ETF positions in Q1 2026 and 9 closed out, a net change of +1 holder.
- The largest Harbor International Compounders ETF buyer in Q1 2026 was Gladstone Institutional Advisory, an estimated $7.26M added.
- The largest Harbor International Compounders ETF seller in Q1 2026 was Annex Advisory Services, an estimated $86.6M sold.
Based on aggregated 13F filings for Q1 2026.