SEIC SEI INVESTMENTS CO
Nasdaq · SEC CIK 350894 · EDGAR
- Bought, last 12 months
- $0 0 purchases by 0 insiders
- Sold, last 12 months
- $50.95M 26 sales by 11 insiders
- Filings on record
- 205 since 2021-08-05, latest 2026-09-24 16:15
BoughtSold
Most active insiders, 12 months
| Insider | Title | Bought | Sold |
|---|---|---|---|
| WEST ALFRED P JR | Executive COB, Dir | — | $12.01M |
| Hicke Ryan | CEO, Dir | — | $11.14M |
| Peterson Michael | EVP | — | $9.74M |
| McCabe Philip | See Remarks | — | $5.50M |
| Sharma Sanjay | See Remarks* | — | $4.24M |
| MCCARTHY KATHRYN | Dir | — | $2.80M |
| Warner Mark Andrew | See Remarks* | — | $2.23M |
| DORAN WILLIAM | Dir | — | $1.04M |
| GUARINO CARL | Dir | — | $1.03M |
| ROMEO CARMEN | Dir | — | $968.5K |
Transactions 260
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023-03-29 | 2023-03-29 | SEIC | WEST ALFRED P JR | Executive COB, Dir, 10% | S - Sale | $56.06 | -15.7K | 8.57M | -0.2% | -$877.8K | |
| D | 2023-03-29 | 2023-03-27 | SEIC | McCabe Philip | EVP - Head of Investment Mgr | M - OptEx | $33.76 | +12.5K | 16.5K | +309% | +$422.0K |
| M | 2023-03-27 | 2022-03-23+ | SEIC | WEST ALFRED P JR | Executive COB, Dir, 10% | S - Sale | $55.51 | -202.4K | 8.65M | -2% | -$11.23M |
| D | 2023-03-06 | 2022-12-05 | SEIC | Brassington Jonathan | Dir | A - Grant | — | +766 | 766 | New | — |
| D | 2023-02-28 | 2022-12-05 | SEIC | MCGONIGLE DENNIS | EVP, CFO | A - Grant | — | +20.0K | 594.2K | +3% | — |
| D | 2023-02-28 | 2022-12-05 | SEIC | GUARINO CARL | Dir | A - Grant | — | +766 | 10.4K | +8% | — |
| D | 2023-02-28 | 2022-12-05 | SEIC | MCCARTHY KATHRYN | Dir | A - Grant | — | +766 | 72.5K | +1% | — |
| D | 2023-02-28 | 2022-12-05 | SEIC | DORAN WILLIAM | Dir | A - Grant | — | +766 | 662.9K | +0.1% | — |
| D | 2023-02-28 | 2023-02-06 | SEIC | DORAN WILLIAM | Dir | G - Gift | $0.00 | -320 | 662.6K | -0.0% | $0 |
| D | 2023-02-28 | 2022-12-05 | SEIC | WEST ALFRED P JR | Executive COB, Dir, 10% | A - Grant | — | +2,500 | 8.78M | +0.0% | — |
| D | 2023-02-28 | 2022-12-05 | SEIC | Peterson Michael | EVP, GC | A - Grant | — | +2,500 | 2,500 | New | — |
| DM | 2023-02-22 | 2023-02-17+ | SEIC | BLUMENSTEIN SARAH | Dir | M - OptEx | $50.23 | +35.0K | 17.0K | New | +$1.76M |
| D | 2023-02-22 | 2022-12-05 | SEIC | BLUMENSTEIN SARAH | Dir | A - Grant | — | +766 | 6,447 | +13% | — |
| DM | 2023-02-22 | 2023-02-17+ | SEIC | BLUMENSTEIN SARAH | Dir | S - Sale+OE | $60.94 | -35.0K | 7,047 | -83% | -$2.13M |
| D | 2023-02-15 | 2022-12-05 | SEIC | WITHROW WAYNE | EVP | A - Grant | — | +20.0K | 55.4K | +56% | — |
| DM | 2023-02-10 | 2023-02-02 | SEIC | Sharma Sanjay | EVP (*Remarks) | M - OptEx | $33.76 | +9,000 | 14.2K | +174% | +$303.8K |
| D | 2023-02-10 | 2023-02-02 | SEIC | Sharma Sanjay | EVP (*Remarks) | S - Sale+OE | $64.14 | -9,000 | 5,165 | -64% | -$577.3K |
| M | 2023-02-09 | 2023-02-09 | SEIC | WEST ALFRED P JR | Executive COB, Dir, 10% | S - Sale | $62.99 | -29.6K | 8.78M | -0.3% | -$1.86M |
| M | 2023-02-08 | 2023-02-06+ | SEIC | WEST ALFRED P JR | Executive COB, Dir, 10% | S - Sale | $63.47 | -128.3K | 8.85M | -1% | -$8.15M |
| 2023-01-04 | 2022-12-23 | SEIC | ROMEO CARMEN | Dir | G - Gift | $0.00 | -6,600 | 1.59M | -0.4% | $0 | |
| M | 2023-01-04 | 2022-12-16+ | SEIC | WITHROW WAYNE | EVP | G - Gift | $0.00 | -3,400 | 36.3K | -9% | $0 |
| 2023-01-04 | 2022-12-28 | SEIC | DORAN WILLIAM | Dir | G - Gift | $0.00 | -7,750 | 662.2K | -1% | $0 | |
| 2023-01-04 | 2022-12-28 | SEIC | MCGONIGLE DENNIS | EVP, CFO | G - Gift | $0.00 | -2,500 | 574.2K | -0.4% | $0 | |
| D | 2022-12-22 | 2022-12-21 | SEIC | MCCARTHY KATHRYN | Dir | M - OptEx | $33.76 | +10.0K | 81.7K | +14% | +$337.6K |
| D | 2022-12-22 | 2022-12-21 | SEIC | MCCARTHY KATHRYN | Dir | S - Sale+OE | $59.25 | -10.0K | 71.7K | -12% | -$592.5K |
| M | 2022-12-20 | 2022-12-16+ | SEIC | WEST ALFRED P JR | Executive COB, Dir, 10% | S - Sale | $58.04 | -106.9K | 8.95M | -1% | -$6.20M |
| M | 2022-12-16 | 2022-12-14+ | SEIC | WEST ALFRED P JR | Executive COB, Dir, 10% | S - Sale | $60.06 | -63.4K | 9.08M | -0.7% | -$3.81M |
| DM | 2022-12-12 | 2020-02-28+ | SEIC | Barr Kevin | EVP | M - OptEx | $23.26 | +70.0K | 184.7K | +61% | +$1.63M |
| D | 2022-12-12 | 2022-12-06 | SEIC | Barr Kevin | EVP | S - Sale+OE | $62.00 | -10.0K | 174.7K | -5% | -$620.0K |
| D | 2022-12-08 | 2022-12-06 | SEIC | DORAN WILLIAM | Dir | M - OptEx | $22.45 | +10.0K | 669.9K | +2% | +$224.5K |
| DM | 2022-11-21 | 2022-11-17+ | SEIC | HEILIG KATHY | Treas | S - Sale+OE | $61.00 | -12.5K | 1,891 | -87% | -$762.5K |
| DM | 2022-11-21 | 2022-11-17+ | SEIC | HEILIG KATHY | Treas | M - OptEx | $40.64 | +12.5K | 1,991 | New | +$508.0K |
| D | 2022-11-18 | 2022-11-16 | SEIC | WEST ALFRED P JR | Executive COB, Dir, 10% | M - OptEx | $22.45 | +50.0K | 9.11M | +0.6% | +$1.12M |
| D | 2022-11-01 | 2022-11-01 | SEIC | WITHROW WAYNE | EVP | M - OptEx | $15.77 | +15.0K | 53.6K | +39% | +$236.6K |
| D | 2022-11-01 | 2022-11-01 | SEIC | WITHROW WAYNE | EVP | S - Sale+OE | $54.51 | -15.0K | 38.8K | -28% | -$817.6K |
| M | 2022-09-21 | 2022-09-15+ | SEIC | WEST ALFRED P JR | 10% | S - Sale | $54.41 | -158.4K | 9.06M | -2% | -$8.62M |
| D | 2022-08-10 | 2022-08-09 | SEIC | WITHROW WAYNE | EVP | S - Sale+OE | $55.78 | -15.0K | 38.8K | -28% | -$836.7K |
| D | 2022-08-10 | 2022-08-09 | SEIC | WITHROW WAYNE | EVP | M - OptEx | $22.45 | +15.0K | 53.8K | +39% | +$336.8K |
| D | 2022-08-01 | 2022-07-29 | SEIC | MCGONIGLE DENNIS | EXECUTIVE Pres | S - Sale+OE | $55.15 | -35.0K | 576.7K | -6% | -$1.93M |
| DM | 2022-08-01 | 2022-07-29 | SEIC | MCGONIGLE DENNIS | EXECUTIVE Pres | M - OptEx | $22.45 | +35.0K | 611.7K | +6% | +$785.8K |
| M | 2021-12-10 | 2021-12-08+ | SEIC | WEST ALFRED P JR | 10% | S - Sale | $61.16 | -132.3K | 9.22M | -1% | -$8.09M |
| D | 2021-12-08 | 2021-12-06 | SEIC | WEST ALFRED P JR | 10% | M - OptEx | $15.77 | +50.0K | 9.35M | +0.5% | +$788.5K |
| D | 2021-12-02 | 2021-11-30 | SEIC | Barr Kevin | EVP | S - Sale+OE | $59.63 | -40.0K | 144.7K | -22% | -$2.39M |
| D | 2021-12-02 | 2021-11-30 | SEIC | Barr Kevin | EVP | M - OptEx | $15.77 | +40.0K | 184.7K | +28% | +$630.8K |
| D | 2021-11-29 | 2021-11-26 | SEIC | Meyer Stephen | EVP | M - OptEx | $15.77 | +10.0K | 186.2K | +6% | +$157.7K |
| D | 2021-11-23 | 2021-11-16 | SEIC | WITHROW WAYNE | EVP | M - OptEx | $15.77 | +4,000 | 42.8K | +10% | +$63.1K |
| D | 2021-11-23 | 2021-11-16 | SEIC | WITHROW WAYNE | EVP | S - Sale+OE | $65.00 | -4,000 | 38.8K | -9% | -$260.0K |
| D | 2021-11-23 | 2021-11-19 | SEIC | Meyer Stephen | EVP | M - OptEx | $15.77 | +10.0K | 176.2K | +6% | +$157.7K |
| D | 2021-11-12 | 2021-11-10 | SEIC | WITHROW WAYNE | EVP | M - OptEx | $15.77 | +4,000 | 42.8K | +10% | +$63.1K |
| D | 2021-11-12 | 2021-11-10 | SEIC | WITHROW WAYNE | EVP | S - Sale+OE | $64.47 | -4,000 | 38.8K | -9% | -$257.9K |
| D | 2021-11-12 | 2021-11-09 | SEIC | WITHROW WAYNE | EVP | S - Sale+OE | $64.30 | -1,470 | 38.8K | -4% | -$94.5K |
| D | 2021-11-12 | 2021-11-09 | SEIC | WITHROW WAYNE | EVP | M - OptEx | $15.77 | +1,470 | 40.3K | +4% | +$23.2K |
| DM | 2021-11-04 | 2021-11-01 | SEIC | WITHROW WAYNE | EVP | M - OptEx | $15.77 | +3,000 | 41.8K | +8% | +$47.3K |
| D | 2021-11-04 | 2021-11-01 | SEIC | WITHROW WAYNE | EVP | S - Sale+OE | $63.95 | -3,000 | 38.8K | -7% | -$191.8K |
| D | 2021-11-04 | 2021-11-01 | SEIC | WITHROW WAYNE | EVP | S - Sale+OE | $63.10 | -4,000 | 38.8K | -9% | -$252.4K |
| D | 2021-11-04 | 2021-11-01 | SEIC | WITHROW WAYNE | EVP | M - OptEx | $15.77 | +4,000 | 42.8K | +10% | +$63.1K |
| D | 2021-11-04 | 2021-11-03 | SEIC | MCGONIGLE DENNIS | EVP | M - OptEx | $15.77 | +17.5K | 594.2K | +3% | +$276.0K |
| D | 2021-11-04 | 2021-11-03 | SEIC | MCGONIGLE DENNIS | EVP | S - Sale+OE | $62.79 | -17.5K | 576.7K | -3% | -$1.10M |
| D | 2021-09-08 | 2021-09-07 | SEIC | Meyer Stephen | EVP | M - OptEx | $15.77 | +15.0K | 166.2K | +10% | +$236.6K |
| D | 2021-08-05 | 2021-08-04 | SEIC | Meyer Stephen | EVP | M - OptEx | $15.77 | +10.0K | 151.2K | +7% | +$157.7K |
Purchase Sale Sale after option exercise All abbreviations