SEI Investments Company

Historical 13F Holders

Symbol
SEIC
CUSIP
784117103
All holders as of
Q2 2026
Type
Equity
Class
COM
Reported Value, Excluding Options
Total Filings

13D/G Filers

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Each filer's latest filing for 784117103 since 12/18/2024, largest first.

Filer % of Class Filed
Loomis, Sayles & Co., L.P. 13G/A 7.0% 8/14/2026
Event 6/30/2026
BlackRock, Inc. 13G/A 6.8% 7/16/2025
Event 6/30/2025
Vanguard Portfolio Management LLC 13G 5.0% 4/29/2026
Event 3/31/2026
Under 5%, checked the "5 percent or less" box, or amended by a later filing (1)
Vanguard Group Inc 13G/A 0% 3/27/2026
Event 3/13/2026

13F Holders by Quarter

Period Filings Shares, Excl. Options Value, Excl. Options
2026 Q3 56 462 k $46.9 M
2026 Q2 589 101 M $8.06 B
2026 Q1 585 90.0 M $7.06 B
2025 Q4 575 89.3 M $7.32 B
2025 Q3 564 89.0 M $7.54 B
2025 Q2 577 91.3 M $8.21 B
2025 Q1 565 93.7 M $7.27 B
2024 Q4 557 91.2 M $7.52 B
2024 Q3 515 92.6 M $6.40 B
2024 Q2 511 99.4 M $6.43 B
2024 Q1 493 107 M $7.65 B
2023 Q4 505 99.4 M $6.32 B
2023 Q3 475 93.6 M $5.63 B
2023 Q2 475 93.2 M $5.53 B
2023 Q1 461 93.2 M $5.36 B
2022 Q4 464 100 M $5.85 B
2022 Q3 451 94.5 M $4.64 B
2022 Q2 469 96.0 M $5.19 B
2022 Q1 482 96.7 M $5.82 B
2021 Q4 490 97.6 M $5.95 B
2021 Q3 460 96.7 M $5.73 B
2021 Q2 456 97.7 M $6.05 B
2021 Q1 457 98.1 M $5.98 B
2020 Q4 459 100 M $5.80 B
2020 Q3 443 102 M $5.16 B
2020 Q2 441 105 M $5.76 B
2020 Q1 433 111 M $5.13 B
2019 Q4 450 114 M $7.46 B
2019 Q3 431 105 M $6.20 B
2019 Q2 428 107 M $5.98 B
2019 Q1 427 107 M $5.58 B
2018 Q4 417 110 M $5.08 B
2018 Q3 434 114 M $6.93 B
2018 Q2 444 111 M $6.98 B
2018 Q1 442 113 M $8.47 B
2017 Q4 436 111 M $8.00 B
2017 Q3 371 113 M $6.87 B
2017 Q2 369 110 M $5.92 B
2017 Q1 369 112 M $5.66 B
2016 Q4 369 113 M $5.57 B
2016 Q3 365 114 M $5.18 B
2016 Q2 372 115 M $5.54 B
2016 Q1 366 117 M $4.96 B
2015 Q4 375 115 M $6.05 B
2015 Q3 365 113 M $5.47 B
2015 Q2 343 115 M $5.63 B
2015 Q1 328 114 M $5.03 B
2014 Q4 330 115 M $4.63 B
2014 Q3 327 114 M $4.11 B
2014 Q2 313 116 M $3.81 B
2014 Q1 307 112 M $3.76 B