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ARROWSTREET CAPITAL, LIMITED PARTNERSHIP

Position in SEIC — Sei Investments Co

CIK 1164508 BOSTON, MA

Position in SEIC

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$57,932,279
+$13,363,909 QoQ
Shares Held
660,498
+16.3% QoQ
Ownership
0.550%
of shares outstanding
% of Portfolio
0.03%
of 13F equity value
Holder Rank
#25
of 569 holders
Holding Since
Mar 2020
21 quarters on record
Voting authority Sole 95% Shared 0% None 5%

Common Shares in SEIC Over Time

Shares Held

Position Value (USD)

Position in Asset Management

Financial Services · as of Jun 30, 2026

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP holds $991,478,899 across 28 Asset Management names. SEIC ranks #9 (5.8% of the industry book) .

# Ticker Company Shares Value (USD) Open
8
1,127,172 $58,556,585

All Filings in SEIC

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21 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $57,932,279 660,498
2026-03-31 $44,568,370 567,967
2025-12-31 $38,028,244 463,646
2025-09-30 $27,997,954 329,970
2025-06-30 $32,955,436 366,742
2025-03-31 $21,268,989 273,979
2024-12-31 $24,997,873 303,078
2024-09-30 $18,868,182 272,701
2024-06-30 $13,419,422 207,442
2024-03-31 $18,210,544 253,276
2023-12-31 $8,478,841 133,420
2023-09-30 $8,940,119 148,433
2022-03-31 $2,041,781 33,911
2021-12-31 $25,552,142 419,300
2021-09-30 $28,542,572 481,325
2021-06-30 $23,724,470 382,838
2021-03-31 $9,891,802 162,347
2020-12-31 $19,351,815 336,729
2020-09-30 $17,255,907 340,219
2020-06-30 $22,451,797 408,363
2020-03-31 $20,967,923 452,480