Security key
784117103
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 90,532,485
- Total 13F value
- $7,940,055,763
- Share change
- +637,787
- Put/Call ratio
- 361%
- SEC-reported price per share
- $87.71
- Number of holders
- 574
- Value change
- +$65,647,569
- Number of buys
- 244
- Number of sells
- 286
- Shares outstanding
- 120,200,577
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q2 2026
Institutions
574
Top holders
10
SEIC full security history
Ownership snapshot
Full 13F holder table
SEI INVESTMENTS CO SEC filings
SEI INVESTMENTS CO company facts
SEI INVESTMENTS CO 13D/G history
Broader feeds
Ownership snapshot
Top reported holders of SEIC - SEI INVESTMENTS CO - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
LOOMIS SAYLES & CO L P
Disclosed value leader
LOOMIS SAYLES & CO L P
Comparable rows
15/15
Latest evidence
30 Jun 2026
13D/G
13F
3/4/5
Lead comparable stake: 7%
13D/G row: LOOMIS SAYLES & CO L P
Showing 1-6 of 15 holder rows.
Quick read
LOOMIS SAYLES & CO L P leads the comparable SEC ownership view at 7%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens LOOMIS SAYLES & CO L P's linked filing trail.
Comparable ownership
Top 5
LOOMIS SAYLES & CO L P
7%
BlackRock, Inc.
6.8%
VANGUARD PORTFOLIO MANAGEMENT LLC
5%
Alfred P. West Jr.
5.7%
William Doran
0.51%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| LOOMIS SAYLES & CO L P |
13D/G
13F
Company
|
7%
|
$807,709,415
8,462,121 shares
|
-$21,132,535 | 30 Jun 2026 |
| BlackRock, Inc. |
13F
13D/G
Company
|
6.8%
from 13D/G
|
$793,358,144
10,110,337 shares
|
— | 31 Mar 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13D/G
13F
Vanguard Portfolio Management · Company
|
5%
|
$481,650,979
6,138,027 shares
|
$0 | 31 Mar 2026 |
| Alfred P. West Jr. |
3/4/5
Chairman Emeritus
|
5.7%
|
$600,637,348
6,818,451 shares
|
-$12,009,290 | 26 Jun 2026 |
| William Doran |
3/4/5
Director
|
0.51%
|
$56,001,581
618,802 shares
|
-$1,039,450 | 09 Jun 2026 |
| Jonathan Brassington |
3/4/5
Director
|
0.01%
|
$496,808
6,207 shares
|
— | 12 Dec 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q2 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
574
Shares
90,532,485
Rows available
574
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q2 2026 vs Q1 2026 Across Filers
Q1 2026 holders
568
Q2 2026 holders
574
Holder diff
6
| Investor | Q1 2026 Shares | Q2 2026 Shares | Share Diff | Share Chg % | Q1 2026 value | Q2 2026 value | Value change | Value Chg % |
|---|