SEIC

Sei Investments Company

-$240.3M

Net Activity

Institutions Holding

564

Popularity Rank

#958

Avg Weight

0.09%

Total Value

$7.1B

Ownership Trend

564 institutions currently hold SEIC, with 279 net buyers and 239 net sellers this quarter.

Institutional Moves

Institutional Moves (Q1 2026)

Neutral

Based on recent trading activity

Net Selling Institutions

239

Net Buying Institutions

279

Key Holders

Key Holders

Top 5 by Value

BI
BlackRock, Inc.
$793.4M
LS
Loomis Sayles & Co L P
$677.1M
VP
Vanguard Portfolio Management LLC
$480.7M
MS
Morgan Stanley
$376.1M
VC
Vanguard Capital Management LLC
$372.1M

Top 5 by Conviction

AC
American Capital Management INC
3.24%
PC
Prana Capital Management, LP
1.11%
BG
Beutel, Goodman & Co Ltd.
0.94%
LS
Loomis Sayles & Co L P
0.91%
FF
First Financial Bankshares Inc
0.88%
View all 564 holding institutions

Quarterly Activity

Recent Activity

+$3.1B

Total Buy Value

$3.7B

Total Sell Value

New buy63
Trim179
Add216
Sold out60

279

Net Buyers

239

Net Sellers

Insider Trading (Form 4)

Form 144 Pre-Sale Notices

2

Filings (90d)

$5.64M

Total Est. Value

64K shares

Planned Shares

Last Filed 2026-06-26
FilerFiling DateEst. Value
WEST ALFRED P JR2026-06-26$5.19M
DORAN WILLIAM2026-06-09$453K

Form 144 is a planned sale notice, not an executed transaction. Form 144 Tracker。

Beneficial Ownership (13D/13G)

No Schedule 13D/13G filings for this ticker

Material Events (8-K)

No Form 8-K filings for this ticker

FAQ

Who are the top institutional investors holding SEI INVESTMENTS COMPANY (SEIC)?
Major stakeholders currently include BlackRock, Inc. ($793.4M), Loomis Sayles & Co L P ($677.1M), Vanguard Portfolio Management LLC ($480.7M). Based on the latest 13F filings, there are a total of 564 tracked investment funds and institutions maintaining positions in SEIC.
What is the overall institutional sentiment toward SEIC recently?
Institutional sentiment appears Bearish (Net Selling). During the most recent reporting quarter, the stock experienced a net outflow of $240.3M, driven by 279 managers accumulating shares while 239 reduced their exposure.
Which institutions have been selling or reducing their SEIC positions?
In the latest period, 179 funds trimmed their holdings, and 60 managers completely exited their positions. The aggregate reported sell value was $3.7B.
Are there any notable investors adding SEIC to their portfolios?
Yes, buying activity remains notable. 63 institutions opened new positions in {ticker}, and 216 existing holders added to their shares. The total reported buy value for the quarter amounted to $3.1B.

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