PETERSON MICHAEL (EXECUTIVE VICE PRESIDENT GC) sold 55.4% of their position (25K shares) of SEI INVESTMENTS CO on the open market
Open‑market sale worth $2.55M — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.
S · 1 sale
Filed: 7/30/2026ACC: 0000929638-26-002843
Officer· EXECUTIVE VICE PRESIDENT GC
Since Dec 2018
-25K
Net shares
Net seller
$2.55M
Total sold
1
Open market trades
0B · 1S
3
Total transactions
25K acquired · 50K disposed
Non-Derivative Transactions2
Common Stock
Direct
Shares
+25K
Price / share
$55.73
Trade value
$1.39M
% of position
124.1%
7/28/2026
20.15K→45.15K
Common Stock
Direct
Shares
−25K
Price / share
$102.05
Trade value
$2.55M
% of position
55.4%
7/28/2026
45.15K→20.15K
Total
Net shares
+0.00
Net value
-$1.16M
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Stock Direct | 7/28/2026 | M · Option Exercise | +25K | $55.73 | $1.39M | 124.1% | 20.15K | 45.15K |
| Common Stock Direct | 7/28/2026 | S · Sale | −25K | $102.05 | $2.55M | 55.4% | 45.15K | 20.15K |
| Total | +0.00 | -$1.16M | ||||||
Derivative Transactions1
Option to Purchase Common Stock
Direct
Converts to
Common Stock
25K shares
Shares
−25K
Strike price
55.73
Held after
0.00
Exercisable
—
7/28/2026
| Security | Converts To | Date | Type | Shares | Strike Price | Exercisable | Held After |
|---|---|---|---|---|---|---|---|
| Option to Purchase Common Stock Direct | Common Stock25K shares | 7/28/2026 | M · Option Exercise | −25K | 55.73 | — | 0.00 |
Non-Derivative Holdings (Post-Transaction)1
Common Stock
IndirectShares owned362.30
Total
362.30 indirect362.30
| Security Title | Shares Owned | Ownership Type |
|---|---|---|
| Common Stock | 362.30 | Indirect |
| Total | 362.30 | 362.30 indirect |
Derivative Holdings (Post-Transaction)0
No derivative holdings reported