PETERSON MICHAEL (EXECUTIVE VICE PRESIDENT GC) sold 33.2% of their position (10K shares) of SEI INVESTMENTS CO on the open market
Open‑market sale worth $900.0K — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.
S · 1 sale
Filed: 4/23/2026ACC: 0001628280-26-026914
Officer· EXECUTIVE VICE PRESIDENT GC
Since Dec 2018
-10K
Net shares
Net seller
$900.0K
Total sold
1
Open market trades
0B · 1S
3
Total transactions
10K acquired · 20K disposed
Non-Derivative Transactions2
Common Stock
Direct
Shares
+10K
Price / share
$48.47
Trade value
$484.70K
% of position
49.6%
4/23/2026
20.15K→30.15K
Common Stock
Direct
Shares
−10K
Price / share
$90.00
Trade value
$900K
% of position
33.2%
4/23/2026
30.15K→20.15K
Total
Net shares
+0.00
Net value
-$415.30K
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Stock Direct | 4/23/2026 | M · Option Exercise | +10K | $48.47 | $484.70K | 49.6% | 20.15K | 30.15K |
| Common Stock Direct | 4/23/2026 | S · Sale | −10K | $90.00 | $900K | 33.2% | 30.15K | 20.15K |
| Total | +0.00 | -$415.30K | ||||||
Derivative Transactions1
Option to Purchase Common Stock
Direct
Converts to
Common Stock
10K shares
Shares
−10K
Strike price
48.47
Held after
0.00
Exercisable
—
4/23/2026
| Security | Converts To | Date | Type | Shares | Strike Price | Exercisable | Held After |
|---|---|---|---|---|---|---|---|
| Option to Purchase Common Stock Direct | Common Stock10K shares | 4/23/2026 | M · Option Exercise | −10K | 48.47 | — | 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