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SEIC in the 13F filings

Sei Invts Co · CUSIP 784117103

Sector · Other financial servicesTheme · Financial services· L3VLUP-defined
Quarter
Q3 2026 · early filersQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023
Quarter end
31 Mar 2025
the date the book describes
Filed
21 May 2025
latest of these filings; the earliest 2 May 2025
Managers listing it
10
at least, of 95 tracked, among listed positions
Comparable managers
95
filed both Q4 2024 and Q1 2025; 7 listed it in both
Shares listed
1,908,026
combined, among listed positions
Reported value
$148m
combined, at the quarter end

Among the 95 comparable managers: 8 buyers (opened or added shares) and 1 seller (trimmed or exited), at least, among listed positions. Their net change in shares is not known from listed positions, because at least one of them lists it in only one of the two quarters.

Managers listing SEIC in Q1 2025

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2024, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

10 of 10 holders

ActionFiling
Voloridge Investment Management LLC577,695$45m0.17%Added+119,48715 May 2025 (the filing on sec.gov)
Man Group PLC353,576$27m0.07%Added+147,33415 May 2025 (the filing on sec.gov)
Acadian Asset Management LLC251,081$19m0.06%Trimmed-99,66421 May 2025 (the filing on sec.gov)
Markel Group Inc173,200$13m0.12%Held02 May 2025 (the filing on sec.gov)
Bridgewater Associates LP146,580$11m0.05%Added+103,66014 May 2025 (the filing on sec.gov)
Holocene Advisors LP106,626$8.3munder 0.1%Added+31,49915 May 2025 (the filing on sec.gov)
ExodusPoint Capital Management LP103,604$8.0m0.08%Added+43,05614 May 2025 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC90,118$7.0munder 0.1%Addedn.a.15 May 2025 (the filing on sec.gov)
Winton Group Ltd70,733$5.5m0.33%Newnew15 May 2025 (the filing on sec.gov)
Element Capital Management LLC34,813$2.7m0.67%Newnew13 May 2025 (the filing on sec.gov)

Largest increases and reductions, by shares

Q4 2024 to Q1 2025, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (2)

Exited (0)

No exit shown by a manager’s own filing.

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
6 in Q3 2024 to 6 in Q2 2026

Tracked managers listing it, at least.

0510152014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
SEIC by quarter
QuarterHoldersReported valueBuyersSellers
Q2 201310$292mn.a.n.a.
Q3 201310$288mn.a.n.a.
Q4 20139$338mn.a.n.a.
Q1 201412$361mn.a.n.a.
Q2 201411$339mn.a.n.a.
Q3 20149$286mn.a.n.a.
Q4 20148$339mn.a.n.a.
Q1 20156$345mn.a.n.a.
Q2 20155$379mn.a.n.a.
Q3 20158$343mn.a.n.a.
Q4 20154$331mn.a.n.a.
Q1 20164$154mn.a.n.a.
Q2 20167$193mn.a.n.a.
Q3 20164$128mn.a.n.a.
Q4 20163$132mn.a.n.a.
Q1 20173$81mn.a.n.a.
Q2 20177$174mn.a.n.a.
Q3 20175$164mn.a.n.a.
Q4 20175$193mn.a.n.a.
Q1 20188$310mn.a.n.a.
Q2 201813$315mn.a.n.a.
Q3 201810$207mn.a.n.a.
Q4 201813$196mn.a.n.a.
Q1 201911$264mn.a.n.a.
Q2 201911$320mn.a.n.a.
Q3 20198$288mn.a.n.a.
Q4 20198$208mn.a.n.a.
Q1 20209$135mn.a.n.a.
Q2 20205$66mn.a.n.a.
Q3 20206$50mn.a.n.a.
Q4 20205$46mn.a.n.a.
Q1 20217$68mn.a.n.a.
Q2 20216$67mn.a.n.a.
Q3 202110$125mn.a.n.a.
Q4 20219$128mn.a.n.a.
Q1 20227$100mn.a.n.a.
Q2 20229$90mn.a.n.a.
Q3 20229$87mn.a.n.a.
Q4 20228$103mn.a.n.a.
Q1 20237$88mn.a.n.a.
Q2 20235$43mn.a.n.a.
Q3 20234$52mn.a.n.a.
Q4 202311$107m73
Q1 202411$137m46
Q2 20244$64m13
Q3 20246$73m41
Q4 20249$148m53
Q1 202510$148m81
Q2 20258$124m35
Q3 20258$129m71
Q4 202510$162m1714
Q1 20267$128m1217
Q2 20266$92m1611

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

SEIC and V →SEIC and AXP →SEIC and BAC →Choose a stock to compare with SEIC →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own SEIC, latest filings →Back to the 13F Explorer →