SEI Investments
SEIC
568 hedge funds and large institutions have $7.06B invested in SEI Investments in 2026 Q1 according to their latest regulatory filings, with 76 funds opening new positions, 216 increasing their positions, 179 reducing their positions, and 60 closing their positions.
27% more first-time investments, than exits
New positions opened: 76 | Existing positions closed: 60
21% more repeat investments, than reductions
Existing positions increased: 216 | Existing positions reduced: 179
1% more funds holding
Funds holding: 560 → 568 (+8)
0.89% more ownership
Funds ownership: 72.75% → 73.64% (+0.89%)
0% more funds holding in top 10
Funds holding in top 10: 4 → 4 (0)
3% less capital invested
Capital invested by funds: $7.31B → $7.06B (-$245M)
51% less call options, than puts
Call options by funds: $3.65M | Put options by funds: $7.42M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Boston Partners
Boston,
Massachusetts
|
+$146M |
| 2 |
Fidelity Investments
Boston,
Massachusetts
|
+$61.7M |
| 3 |
FFB
First Financial Bankshares
Abilene,
Texas
|
+$45.6M |
| 4 |
BlackRock
New York
|
+$38.9M |
| 5 |
Lord, Abbett & Co
Jersey City,
New Jersey
|
+$23.6M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Invesco
Atlanta,
Georgia
|
-$48.3M |
| 2 |
Qube Research & Technologies (QRT)
London,
United Kingdom
|
-$36.1M |
| 3 |
UBS Group
Zurich,
Switzerland
|
-$26.3M |
| 4 |
Morgan Stanley
New York
|
-$23.3M |
| 5 |
Millennium Management
New York
|
-$20.8M |
SEIC Hedge Fund Activity: Q1 2026 in Review
568 of the 8,187 institutional investors tracked by Wall St. Rank reported a position in SEI Investments (SEIC) for Q1 2026, worth a combined $7.06B — down 3.4% from $7.31B a quarter earlier.
Buyers outnumbered sellers: 76 funds opened new SEIC positions and 60 closed out — a net gain of 16 holders — while 216 added to existing stakes and 179 trimmed.
The largest buyer was Boston Partners, opening a new position worth an estimated $146M. The largest seller was Invesco, cutting an estimated $48.3M.
- 568 institutional investors held SEI Investments (SEIC) as of Q1 2026, up from 560 in Q4 2025.
- Funds reported $7.06B of SEI Investments stock for Q1 2026, down 3.4% quarter-over-quarter.
- 76 funds opened new SEI Investments positions in Q1 2026 and 60 closed out, a net change of +16 holders.
- The largest SEI Investments buyer in Q1 2026 was Boston Partners, an estimated $146M added.
- The largest SEI Investments seller in Q1 2026 was Invesco, an estimated $48.3M sold.
Based on aggregated 13F filings for Q1 2026.