Michael Peterson is President & VP at SEI INVESTMENTS CO (SEIC). They have made 12 open-market trades across 1 company since 2023, most recently 2026-08-28.
CIK 0001745371
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 12 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| SEIC | 20,148 | $2.1M |
Shares reported on the most recent Form 4, priced at the 2026-09-01 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| SEIC | SELL | 2026-08-28 | 2026-09-01 | $111.51 | $4.2M | -3.7% | -5.2% | — |
| SEIC | SELL | 2026-07-28 | 2026-07-30 | $102.05 | $2.6M | +2.4% | +8.6% | — |
| SEIC | SELL | 2026-04-23 | 2026-04-23 | $90.00 | $900K | -0.3% | -0.3% | +8.5% |
| SEIC | SELL | 2025-11-12 | 2025-11-13 | $84.21 | $2.1M | -1.9% | +0.3% | -1.9% |
| SEIC | SELL | 2025-08-07 | 2025-08-08 | $88.55 | $1.3M | +0.9% | -0.2% | -6.2% |
| SEIC | SELL | 2025-08-05 | 2025-08-06 | $88.69 | $121K | +0.1% | -1.5% | -7.8% |
| SEIC | SELL | 2025-07-31 | 2025-08-04 | $88.51 | $837K | +0.4% | -0.9% | -8.6% |
| SEIC | SELL | 2025-05-15 | 2025-05-16 | $84.27 | $4.2M | +0.5% | -0.2% | +5.3% |
| SEIC | SELL | 2024-11-06 | 2024-11-08 | $79.14 | $791K | -0.9% | +4.7% | +7.0% |
| SEIC | SELL | 2024-10-25 | 2024-10-29 | $74.59 | $3.7M | +5.3% | +8.6% | +9.6% |
| SEIC | SELL | 2023-09-19 | 2023-09-21 | $61.29 | $1.5M | -5.5% | -9.4% | +5.4% |
| SEIC | SELL | 2023-07-28 | 2023-07-31 | $63.20 | $632K | -1.8% | -1.2% | -15.0% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.