SEI INVESTMENTS (SEIC) stock: insider trades, news & valuation
Heavy selling
Close · Oct 9, 2026
$104.70
+1.4% on the day
+26.0% over 12 months
52-week range $74.74 – $111.63
Share price and insider trades
SEIC closeInsider buyInsider sale
Bought, 12 months$0
Sold, 12 months$53.6M
Insiders buying0
Insiders selling11
SEI INVESTMENTS insider trading at a glance (Oct 9, 2026): in the past 12 months, 0 insiders bought $0 and 11 sold $53.6M of SEIC stock on the open market.
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SEIC insider buying and selling by quarter
Open-market purchases (green, above the line) and sales (red, below), by trade date.
| Quarter | Bought | Purchases | Sold | Sales |
|---|---|---|---|---|
| Q4 2026 | — | 0 | — | 0 |
| Q3 2026 | — | 0 | $23.9M | 15 |
| Q2 2026 | — | 0 | $11.3M | 11 |
| Q1 2026 | — | 0 | $12.3M | 9 |
| Q4 2025 | — | 0 | $6.1M | 5 |
Valuation, profit and volume
P/E (trailing)n/aSector median —
Market value—
Profit margin—Revenue growth —
Volume vs. 50-day1.0×Last 5 sessions
Insiders' paper profit—On all tracked purchases —
Summary
Over the past 12 months, 0 SEI INVESTMENTS CO insiders reported open-market purchases totaling $0, while 11 insiders reported sales totaling $53.6M. 0 of 40 recorded sales were made under pre-scheduled Rule 10b5-1 trading plans, which are usually less informative than discretionary sales.
Insider transactions
Open-market purchases and sales.
| Filed | Insider | Type | Shares | Price | Value | Since | Score |
|---|---|---|---|---|---|---|---|
| Oct 1SEC | Alfred P West Jr.Chair | Sell | 28,3946,790,057 held (−0%) | $103.40 | $2.9M | +1.3% | — |
| Oct 1SEC | Alfred P West Jr.Chair | Sell | 5,4836,784,574 held (−0%) | $103.16 | $566K | +1.5% | — |
| Sep 24SEC | Michael LanePresident | Sell | 2,40039,581 held (−6%) | $102.78 | $247K | +1.9% | — |
| Sep 8SEC | Ryan HickeCEO | Sell | 37,500192,815 held (−16%) | $110.71 | $4.2M | -5.4% | — |
| Sep 3SEC | Carmen RomeoDirector | Sell | 5,0001,560,293 held (−0%) | $109.70 | $548K | -4.6% | — |
| Sep 1SEC | Michael PetersonPresident | Sell | 37,50020,148 held (−65%) | $111.51 | $4.2M | -6.1% | — |
| Aug 6SEC | Philip MccabeSee Remarks | Sell | 24,95754,884 held (−31%) | $105.04 | $2.6M | -0.3% | — |
| Aug 6SEC | Philip MccabeSee Remarks | Sell | 5,04354,884 held (−8%) | $105.50 | $532K | -0.8% | — |
| Aug 4SEC | Kathryn MccarthyDirector | Sell | 10,00077,883 held (−11%) | $103.54 | $1.0M | +1.1% | — |
| Jul 30SEC | Michael PetersonPresident | Sell | 25,00020,148 held (−55%) | $102.05 | $2.6M | +2.6% | — |
| Jul 30SEC | Carl GuarinoDirector | Sell | 10,00018,308 held (−35%) | $103.20 | $1.0M | +1.5% | — |
| Jul 30SEC | Mark Andrew WarnerSee Remarks* | Sell | 7,400921 held (−89%) | $102.97 | $762K | +1.7% | — |
| Jul 30SEC | Mark Andrew WarnerSee Remarks* | Sell | 5,3008,321 held (−39%) | $102.01 | $541K | +2.6% | — |
| Jul 30SEC | Mark Andrew WarnerSee Remarks* | Sell | 2,30013,621 held (−14%) | $101.11 | $233K | +3.6% | — |
| Jul 28SEC | Sanjay SharmaSee Remarks* | Sell | 20,00039,829 held (−33%) | $99.33 | $2.0M | +5.4% | — |
| Jun 29SEC | Alfred P West Jr.Chair | Sell | 46,1626,829,621 held (−1%) | $87.21 | $4.0M | +20.1% | — |
| Jun 29SEC | Alfred P West Jr.Chair | Sell | 5,6526,820,131 held (−0%) | $87.18 | $493K | +20.1% | — |
| Jun 29SEC | Alfred P West Jr.Chair | Sell | 3,8386,825,783 held (−0%) | $87.67 | $336K | +19.4% | — |
| Jun 29SEC | Alfred P West Jr.Chair | Sell | 1,6806,818,451 held (−0%) | $88.09 | $148K | +18.9% | — |
| Jun 11SEC | William DoranDirector | Sell | 5,000618,802 held (−1%) | $90.50 | $452K | +15.7% | — |
| May 5SEC | Kathryn MccarthyDirector | Sell | 10,00077,883 held (−11%) | $91.07 | $911K | +15.0% | — |
| Apr 30SEC | Mark Andrew WarnerIn Remarks | Sell | 4,000921 held (−81%) | $91.16 | $365K | +14.9% | — |
| Apr 24SEC | Philip MccabeSee Remarks | Sell | 15,00054,884 held (−21%) | $91.82 | $1.4M | +14.0% | — |
| Apr 23SEC | Sanjay SharmaSee Remarks* | Sell | 23,44141,388 held (−36%) | $90.08 | $2.1M | +16.2% | — |
| Apr 23SEC | Michael PetersonPresident | Sell | 10,00020,148 held (−33%) | $90.00 | $900K | +16.3% | — |
| Apr 23SEC | Sanjay SharmaSee Remarks* | Sell | 1,55939,829 held (−4%) | $90.73 | $141K | +15.4% | — |
| Mar 12SEC | Alfred P West Jr.Chair | Sell | 29,4316,883,230 held (−0%) | $80.47 | $2.4M | +30.1% | — |
| Mar 12SEC | Alfred P West Jr.Chair | Sell | 25,3916,912,661 held (−0%) | $79.97 | $2.0M | +30.9% | — |
| Mar 12SEC | Alfred P West Jr.Chair | Sell | 6,0766,877,154 held (−0%) | $79.11 | $481K | +32.3% | — |
| Mar 12SEC | Alfred P West Jr.Chair | Sell | 1,3716,875,783 held (−0%) | $79.94 | $110K | +31.0% | — |
| Mar 12SEC | Alfred P West Jr.Chair | Sell | 1786,938,052 held (−0%) | $78.88 | $14K | +32.7% | — |
| Feb 26SEC | Mark Andrew WarnerSee Remarks | Sell | 4,000921 held (−81%) | $81.74 | $327K | +28.1% | — |
| Feb 2SEC | Ryan HickeCEO | Sell | 49,937210,218 held (−19%) | $87.39 | $4.4M | +19.8% | — |
| Feb 2SEC | Ryan HickeCEO | Sell | 17,009260,155 held (−6%) | $86.75 | $1.5M | +20.7% | — |
| Feb 2SEC | Ryan HickeCEO | Sell | 13,054197,164 held (−6%) | $88.06 | $1.1M | +18.9% | — |
| Dec 23SEC | William DoranDirector | Sell | 7,000623,802 held (−1%) | $83.85 | $587K | +24.9% | — |
| Dec 8SEC | Philip MccabeSee Remarks | Sell | 12,00062,544 held (−16%) | $81.11 | $973K | +29.1% | — |
| Dec 5SEC | Alfred P West Jr.Chair | Sell | 24,7706,942,812 held (−0%) | $80.87 | $2.0M | +29.5% | — |
| Nov 13SEC | Michael PetersonPresident | Sell | 25,00013,500 held (−65%) | $84.21 | $2.1M | +24.3% | — |
| Nov 12SEC | Carmen RomeoDirector | Sell | 5,0001,573,527 held (−0%) | $84.01 | $420K | +24.6% | — |
Insiders at SEI INVESTMENTS CO
| Insider | Bought | Sold | Last filing | Score |
|---|---|---|---|---|
| Alfred P West Jr.Chair | — | $15.5M | Oct 1, 2026 | — |
| Ryan HickeCEO | — | $11.1M | Sep 8, 2026 | — |
| Michael PetersonPresident | — | $9.7M | Sep 1, 2026 | — |
| Philip MccabeSee Remarks | — | $5.5M | Aug 6, 2026 | — |
| Sanjay SharmaSee Remarks* | — | $4.2M | Jul 28, 2026 | — |
| Mark Andrew WarnerSee Remarks* | — | $2.2M | Jul 30, 2026 | — |
| Kathryn MccarthyDirector | — | $1.9M | Aug 4, 2026 | — |
| William DoranDirector | — | $1.0M | Jun 11, 2026 | — |
| Carl GuarinoDirector | — | $1.0M | Jul 30, 2026 | — |
| Carmen RomeoDirector | — | $969K | Sep 3, 2026 | — |
| Michael LanePresident | — | $247K | Sep 24, 2026 | — |
SEIC stock: common questions
Are SEI INVESTMENTS CO insiders buying SEIC stock?
In the past 12 months, 0 insiders reported open-market purchases of SEIC worth $0.
Are SEI INVESTMENTS CO insiders selling SEIC stock?
11 insiders reported sales worth $53.6M over the same period.
Where does this data come from?
Every transaction comes from Form 4 filings that insiders must submit to the SEC within two business days of a trade. We pull them from SEC EDGAR every night.
What is SEIC's 52-week range?
Over the past year SEIC has traded between $74.74 and $111.63. It last closed at $104.70 on Oct 9, 2026.