Kathryn McCarthy is Director at SEI INVESTMENTS CO (SEIC). They have made 18 open-market trades across 2 companies since 2006, most recently 2026-08-03.
CIK 0001101310
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 18 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| SEIC | 77,883 | $8.1M |
| SEI | 71,700 | $4.5M |
| Total | $12.6M |
Shares reported on the most recent Form 4, priced at the 2026-08-04 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 | 2026-08-03 | 2026-08-04 | $103.54 | $1.0M | +1.1% | +5.9% | — |
| SEIC | SELL | 2026-05-04 | 2026-05-05 | $91.07 | $911K | -0.7% | -2.9% | +14.2% |
| SEIC | SELL | 2025-09-29 | 2025-09-29 | $85.66 | $857K | -1.5% | -5.6% | -1.6% |
| SEIC | SELL | 2023-09-08 | 2023-09-11 | $60.58 | $606K | -1.0% | -4.9% | -0.6% |
| SEI | SELL | 2022-12-21 | 2022-12-22 | $59.25 | $593K | -1.4% | +4.6% | -17.6% |
| SEIC | SELL | 2020-12-09 | 2020-12-10 | $56.35 | $535K | -1.3% | +8.1% | +5.7% |
| SEIC | SELL | 2019-11-04 | 2019-11-06 | $61.49 | $584K | -1.1% | +2.2% | +8.0% |
| SEIC | SELL | 2019-07-26 | 2019-07-30 | $60.90 | $579K | -5.1% | -5.6% | -1.0% |
| SEIC | SELL | 2017-09-19 | 2017-09-21 | $58.69 | $587K | +5.5% | +5.7% | +20.7% |
| SEIC | SELL | 2017-03-31 | 2017-04-04 | $50.44 | $126K | +3.3% | +1.5% | +6.4% |
| SEIC | SELL | 2015-03-23 | 2015-03-25 | $44.18 | $393K | -11.3% | -1.0% | -1.0% |
| SEIC | SELL | 2014-07-29 | 2014-08-01 | $35.91 | $287K | -11.3% | -1.0% | -1.0% |
| SEIC | SELL | 2013-05-20 | 2013-05-22 | $30.47 | $244K | -11.3% | -1.0% | -1.0% |
| SEIC | SELL | 2009-06-02 | 2009-06-03 | $16.42 | $154K | -11.3% | -1.0% | -1.0% |
| SEIC | SELL | 2008-06-13 | 2008-06-17 | $25.43 | $407K | -11.3% | -1.0% | -1.0% |
| SEIC | SELL | 2008-03-12 | 2008-03-13 | $25.05 | $401K | -11.3% | -1.0% | -1.0% |
| SEIC | SELL | 2007-09-26 | 2007-09-28 | $26.05 | $516K | -11.3% | -1.0% | -1.0% |
| SEIC | SELL | 2006-12-20 | 2006-12-21 | $59.71 | $973K | -11.3% | -1.0% | -1.0% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.