Sei Investments Co (SEIC)
- Sector
- Financial Services
- Last price
- $103.20
- As of
Kresmion compiles this page from SEIC's SEC filings, its 13F institutional holders and the market events Kresmion detects, each linked to its source.
SEI INVESTMENTS CO (SEIC): 5 institutional managers tracked by Kresmion reported non-option positions in their 2026Q2 Form 13F filings, and the most recent SEC filing on record for the company is a Form 10-Q filed 2026-10-26.
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Preview the SEIC dossierActive events for SEIC
- high13F: funds added
4 tracked funds increased SEIC this 2026Q2, institutional consensus
- high13F: funds added
3 tracked funds increased SEIC this 2026Q2, institutional consensus
- high13F: large increase
CITADEL ADVISORS LLC added +309900% to SEIC (2026Q2)
- high13F: large increase
CITADEL ADVISORS LLC added +499900% to SEIC (2026Q2)
- high13F: large increase
CITADEL ADVISORS LLC added +9243200% to SEIC (2026Q2)
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Every event on SEIC, as it fires
You are seeing 5 of 15 events recorded on SEIC since 2026-06-01.
The five above landed across 2 days. The other 10 were recorded on 5 other days. 8 of the 15 are institutional flow rows, which arrive in batches on filing days.
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Largest reported share positions in SEIC (2026Q2)
| Manager / security | Market value | % portfolio | QoQ |
|---|---|---|---|
| RENAISSANCE TECHNOLOGIES LLCCUSIP 784117103 · 2026Q2 | $25M | 0.03% | , |
| MILLENNIUM MANAGEMENT LLCCUSIP 784117103 · 2026Q2 | $23.3M | 0.01% | , |
| Bridgewater Associates, LPCUSIP 784117103 · 2026Q2 | $12.7M | 0.05% | , |
| TWO SIGMA INVESTMENTS, LPCUSIP 784117103 · 2026Q2 | $10.4M | 0.01% | , |
| CITADEL ADVISORS LLCCUSIP 784117103 · 2026Q2 | $8.1M | 0.00% | , |
Quarterly SEC Form 13F disclosures from the managers Kresmion tracks, not a complete ownership ranking. Non-option holdings only; reported put and call positions are excluded. Different securities are labeled by CUSIP. Values are reporting-period snapshots, not current position values. Filings can arrive up to 45 days after quarter-end.
Recent SEC filings, SEIC
- 10-QSEC EDGAR ↗
- 8-KSEC EDGAR ↗
- 10-QSEC EDGAR ↗
- 8-KSEC EDGAR ↗
- 8-KSEC EDGAR ↗
- 10-QSEC EDGAR ↗
- 8-KSEC EDGAR ↗
- 8-KSEC EDGAR ↗
- 10-KSEC EDGAR ↗
- 8-KSEC EDGAR ↗
SEIC against its peers
SEIC's operating margin of 27.3% ranks in the 41st percentile of 10 Financial Services sub-industry peers, fiscal periods ending between 2025-11-30 and 2026-06-30.
| Metric | SEIC | Peer median | Percentile | n |
|---|---|---|---|---|
| Revenue FY | 2.3B USD | 2.3B USD | 50 | 22 |
| Gross margin | 35.2% | 50.7% | 36 | 6 |
| Operating margin | 27.3% | 32.4% | 41 | 10 |
| Net margin | 31.1% | 18.1% | 69 | 23 |
| Return on equity | 29.2% | 16.1% | 90 | 23 |
| P / E | 18.3x | 21.4x | 45 | 20 |
Peers (24): ALLY, EVR, JEF, CHYM, FUTU, AMG, EQH, SF, HLI, JXN, VOYA, FCFS, TOST, MORN, LPLA, SOFI, OMF, OWL, ACT, WEX, AFRM, TW, MKTX, CACC. Left out: CRBG (no annual filing). Fiscal periods ending between 2025-11-30 and 2026-06-30. Every figure is one full fiscal year read from one annual filing (SEIC: 10-K), reported in USD. Nothing is trailing twelve months and nothing is converted between currencies. Source: SEC EDGAR XBRL company facts (public domain); prices from Kresmion's daily equity market-data snapshot. Open the full comparison.
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