SEIC

SEI INVESTMENTS CO

Security Brokers, Dealers & Flotation Companies · SIC 6211CIK 350894Held by 7 tracked managersEDGAR filings ↗10-K/10-Q ↗

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7 managers · Q2 2026 13F

13F bookWeight

Royce & Associates

Royce & AssociatesPosition history →

0.74%

+5.4%

$92.1M

$12.42B13F book · 2026-06-30

Markel Group

Tom GaynerPosition history →

0.12%

—

$15.2M

$13.13B13F book · 2026-06-30

Kahn Brothers Group

Kahn BrothersPosition history →

0.09%

—

$0.6M

$0.63B13F book · 2026-06-30

Alps Advisors

Alps AdvisorsPosition history →

0.08%

(6.0%)

$17.6M

$21.33B13F book · 2026-06-30

Bridgewater Associates

Bridgewater AssociatesPosition history →

0.05%

(37.9%)

$12.7M

$24.38B13F book · 2026-06-30

Renaissance Technologies

Renaissance TechnologiesPosition history →

0.03%

(28.8%)

$25.0M

$72.62B13F book · 2026-06-30

Holocene Advisors

Holocene AdvisorsPosition history →

0.01%

+24.3%

$4.6M

$43.69B13F book · 2026-06-30

Weight = position value ÷ the manager's total 13F long-equity value in the same filing — one definition for every row. “1st obs.” marks a position with no earlier stored 13F to compare against — it is not shown as a purchase.