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Equibles

CITADEL ADVISORS LLC

Position in SEIC — Sei Investments Co

CIK 1423053 MIAMI, FL
Back to SEIC Full portfolio

Position in SEIC

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$8,107,297
+$4,813,991 QoQ
Shares Held
92,433
+120.2% QoQ
Ownership
0.077%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#95
of 569 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in SEIC Over Time

Shares Held

Position Value (USD)

Derivatives in SEIC

reported options exposure · as of Jun 30, 2026
CallValue
$438,550
CallShares
5,000
PutValue
$271,901
PutShares
3,100

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Asset Management

Financial Services · as of Jun 30, 2026

CITADEL ADVISORS LLC holds $2,809,802,491 across 233 Asset Management names. SEIC ranks #31 (0.3% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 BLK
BlackRock, Inc.
 1,097,186 $1,055,010,169
2 KKR
KKR & Co. Inc.
 2,563,798 $235,305,380
3 BX
Blackstone Inc.
 1,291,987 $152,028,109
4 TPG
TPG Inc.
 3,117,610 $126,419,085
5 AMP
Ameriprise Financial Inc
 236,081 $108,304,518
6 HLNE
Hamilton Lane INC
 1,203,158 $94,844,944
7 STT
State Street Corp
 492,672 $83,557,170
8 NTRS
Northern Trust Corp
 401,657 $69,824,052

All Filings in SEIC

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $271,901 3,100
2026-06-30 $438,550 5,000
2026-06-30 $8,107,297 92,433
2026-03-31 $3,293,306 41,969
2025-12-31 $12,489,677 152,276
2025-09-30 $5,303,125 62,500
2025-09-30 $17,538,324 206,698
2025-06-30 $2,498,108 27,800
2025-06-30 $18,203,478 202,576
2025-03-31 $3,136,252 40,400
2025-03-31 $155,260 2,000
2024-12-31 $783,560 9,500
2024-12-31 $3,802,328 46,100
2024-12-31 $61,521,419 745,895
2024-09-30 $84,137,737 1,216,039
2024-09-30 $2,560,030 37,000
2024-09-30 $276,760 4,000
2024-06-30 $71,159 1,100
2024-06-30 $59,052,200 912,849
2024-06-30 $2,678,166 41,400
2024-03-31 $77,948,947 1,084,130
2024-03-31 $129,420 1,800
2024-03-31 $3,343,350 46,500
2023-12-31 $103,623,549 1,630,583
2023-12-31 $1,347,260 21,200
2023-12-31 $6,355 100
2023-09-30 $60,230 1,000
2023-09-30 $78,163,060 1,297,743
2023-09-30 $511,955 8,500
2023-06-30 $59,620 1,000
2023-06-30 $1,663,398 27,900
2023-06-30 $86,636,862 1,453,151
2023-03-31 $989,860 17,200
2023-03-31 $17,892,927 310,911
2023-03-31 $328,035 5,700
2022-12-31 $12,265,619 210,388
2022-12-31 $5,830 100
2022-12-31 $64,130 1,100
2022-09-30 $294,300 6,000
2022-09-30 $762,923 15,554
2022-06-30 $302,512 5,600
2022-06-30 $2,319,563 42,939
2022-03-31 $626,605 10,407
2021-12-31 $3,658,775 60,039
2021-09-30 $3,700,378 62,401
2021-06-30 $625,897 10,100
2021-06-30 $1,103,066 17,800
2021-06-30 $3,916,813 63,205
2021-03-31 $487,440 8,000
2021-03-31 $3,038,822 49,874

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