PETERSON MICHAEL (EXECUTIVE VICE PRESIDENT GC) sold 65.0% of their position (37.50K shares) of SEI INVESTMENTS CO on the open market
Open‑market sale worth $4.18M — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.
S · 1 sale
Filed: 9/1/2026ACC: 0000929638-26-003408
Officer· EXECUTIVE VICE PRESIDENT GC
Since Dec 2018
-37.50K
Net shares
Net seller
$4.18M
Total sold
1
Open market trades
0B · 1S
3
Total transactions
37.50K acquired · 75K disposed
Non-Derivative Transactions2
Common Stock
Direct
Shares
+37.50K
Price / share
$56.54
Trade value
$2.12M
% of position
186.1%
8/28/2026
20.15K→57.65K
Common Stock
Direct
Shares
−37.50K
Price / share
$111.51
Trade value
$4.18M
% of position
65.0%
8/28/2026
57.65K→20.15K
Total
Net shares
+0.00
Net value
-$2.06M
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Stock Direct | 8/28/2026 | M · Option Exercise | +37.50K | $56.54 | $2.12M | 186.1% | 20.15K | 57.65K |
| Common Stock Direct | 8/28/2026 | S · Sale | −37.50K | $111.51 | $4.18M | 65.0% | 57.65K | 20.15K |
| Total | +0.00 | -$2.06M | ||||||
Derivative Transactions1
Option to Purchase Common Stock
Direct
Converts to
Common Stock
37.50K shares
Shares
−37.50K
Strike price
56.54
Held after
0.00
Exercisable
—
8/28/2026
| Security | Converts To | Date | Type | Shares | Strike Price | Exercisable | Held After |
|---|---|---|---|---|---|---|---|
| Option to Purchase Common Stock Direct | Common Stock37.50K shares | 8/28/2026 | M · Option Exercise | −37.50K | 56.54 | — | 0.00 |
Non-Derivative Holdings (Post-Transaction)1
Common Stock
IndirectShares owned454.00
Total
454.00 indirect454.00
| Security Title | Shares Owned | Ownership Type |
|---|---|---|
| Common Stock | 454.00 | Indirect |
| Total | 454.00 | 454.00 indirect |
Derivative Holdings (Post-Transaction)0
No derivative holdings reported