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SEM
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SEM
SEM
Nasdaq 100S&P 500
Filings
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SEMS&P 500 (rebased)
Congress BuyCongress SellInsider BuyInsider SellForm 1448-K ResultsLobbying
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Daily closes, adjusted for splits and dividends · Close Prices from Tiingo.comHover a marker, every one is a filing · move across the line for the crosshair
Congressional Trades
Recent trades of SEM by members of U.S. Congress · 2 on record
| Politician | Stock | Type | Filed | Traded | |
|---|---|---|---|---|---|
 Jim CooperHouse · D · TN |
SEMSEM · Stock |
Sale $1,001 - $15,000 |
Sep 17, 2015 | Aug 6, 2014 | Filing ↗ |
| Jim CooperHouse · D · TN |
SEMSEM · Stock |
Sale $15,001 - $50,000 |
May 8, 2015 | Mar 24, 2015 | Filing ↗ |
Whale Activity
Position changes in SEM reported for 2026-06-30 by 11 tracked institutional filers
- Increased3
- New1
- Held0
- Decreased4
- Closed1
- No prior filing2
| Filer | Shares | Value | Change |
|---|---|---|---|
| BlackRock, Inc. | 13.1M | $215.8M | decreased |
| TWO SIGMA INVESTMENTS, LP | 4.9M | $81.6M | increased |
| MILLENNIUM MANAGEMENT LLC | 2.8M | $45.5M | increased |
| D. E. Shaw & Co., Inc. | 798.3K | $13.2M | decreased |
| Point72 Asset Management, L.P. | 80.6K | $1.3M | new |
| One68 Global Capital, LLC | 70.1K | $1.2M | — |
| CITADEL ADVISORS LLC | 21.5K | $355K | decreased |
| HARVEST MANAGEMENT LLC | 21.0K | $347K | increased |
| GLAZER CAPITAL, LLC | 10.7M | $177K | — |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2,134 | $35K | decreased |
| VANGUARD CAPITAL MANAGEMENT LLC | 0 | $0 | closed |
KeyVex tracks a curated set of large 13F filers plus the largest positions in recent filings, so this is a sample of institutional activity, not the whole market.
Insider Trading
Net shares bought (+) or sold (−) on the open market by SEM insiders, by quarter · Form 4
Recent Insider Transactions
1,592 transactions on record · newest first
| Insider | Type | Shares | Price | Value | Date | |
|---|---|---|---|---|---|---|
| Breighner Robert G. JRSENIOR VICE PRESIDENT | Tax withholding | −1,330 | $16.44 | $22K | May 4, 2026 | Form 4 ↗ |
| CHERNOW DAVID SVice Chairman · Director | Tax withholding | −22.6K | $16.41 | $371K | Apr 30, 2026 | Form 4 ↗ |
| Frist William H.Director | Grant / award | +1,094 | $16.45 | $18K | Apr 28, 2026 | Form 4 ↗ |
| Frist William H.Director | Grant / award | +1,109 | $16.23 | $18K | Feb 11, 2026 | Form 4 ↗ |
| Duggan John F.Executive Vice President | Tax withholding | −4,865 | $13.83 | $67K | Nov 1, 2025 | Form 4 ↗ |
| Malatesta Michael FCHIEF FINANCIAL OFFICER | Tax withholding | −7,357 | $13.83 | $102K | Nov 1, 2025 | Form 4 ↗ |
| Duggan John F.Executive Vice President | Grant / award | +50.0K | $0.00 | $0 | Oct 28, 2025 | Form 4 ↗ |
| Weigl ChristopherCHIEF ACCOUNTING OFFICER | Grant / award | +20.0K | $0.00 | $0 | Oct 28, 2025 | Form 4 ↗ |
| Frist William H.Director | Grant / award | +1,266 | $14.22 | $18K | Oct 28, 2025 | Form 4 ↗ |
| Saich John A.EXECUTIVE VICE PRESIDENT | Tax withholding | −21.7K | $12.57 | $273K | Aug 1, 2025 | Form 4 ↗ |
| Mullin Thomas PCO-PRESIDENT | Tax withholding | −22.0K | $12.57 | $277K | Aug 1, 2025 | Form 4 ↗ |
| TARVIN MICHAEL EEXECUTIVE VICE PRESIDENT | Tax withholding | −19.6K | $12.57 | $247K | Aug 1, 2025 | Form 4 ↗ |
| JACKSON MARTIN FEXECUTIVE VICE PRESIDENT | Tax withholding | −29.5K | $12.57 | $370K | Aug 1, 2025 | Form 4 ↗ |
| CHERNOW DAVID SCEO · Director | Tax withholding | −49.1K | $12.57 | $617K | Aug 1, 2025 | Form 4 ↗ |
| Rusignuolo Brian R.Chief Information Officer | Tax withholding | −14.7K | $12.57 | $185K | Aug 1, 2025 | Form 4 ↗ |
| Thomas DanielDirector | Grant / award | +14.0K | $0.00 | $0 | Jul 29, 2025 | Form 4 ↗ |
| Saich John A.EXECUTIVE VICE PRESIDENT | Grant / award | +100.0K | $0.00 | $0 | Jul 29, 2025 | Form 4 ↗ |
| Davisson Katherine RDirector | Grant / award | +14.0K | $0.00 | $0 | Jul 29, 2025 | Form 4 ↗ |
| Ely James S. IIIDirector | Grant / award | +14.0K | $0.00 | $0 | Jul 29, 2025 | Form 4 ↗ |
| Khanuja Parvinderjit S.Director | Grant / award | +14.0K | $0.00 | $0 | Jul 29, 2025 | Form 4 ↗ |
Fund Holders
Mutual funds and ETFs holding SEM · SEC Form N-PORT
| Fund | Shares | Value | % of fund | As of |
|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF iShares Trust | 6.7M | $109.8M | 0.10% | Jun 30, 2026 |
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 3.4M | $55.4M | 0.00% | Jun 30, 2026 |
| iShares Russell 2000 ETF iSHARES TRUST | 2.6M | $43.0M | 0.06% | Mar 31, 2026 |
| VANGUARD SMALL-CAP INDEX FUND VANGUARD INDEX FUNDS | 2.4M | $39.9M | 0.02% | Jun 30, 2026 |
| VANGUARD SMALL-CAP VALUE INDEX FUND VANGUARD INDEX FUNDS | 1.5M | $25.3M | 0.04% | Jun 30, 2026 |
| Nexpoint Merger Arbitrage Fund NexPoint Funds I | 1.3M | $21.6M | 1.45% | Jun 30, 2026 |
| VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS | 1.3M | $21.0M | 0.02% | Jun 30, 2026 |
| T. Rowe Price Small-Cap Value Fund, Inc. | 1.1M | $18.4M | 0.20% | Mar 31, 2026 |
| Fidelity Small Cap Index Fund Fidelity Salem Street Trust | 1.1M | $17.4M | 0.05% | Apr 30, 2026 |
| State Street(R) SPDR(R) Portfolio S&P 600(TM) Small Cap ETF SPDR SERIES TRUST | 1.0M | $16.8M | 0.10% | Jun 30, 2026 |
Mutual funds and ETFs whose N-PORT filings list SEM's shares (CUSIP 81619Q105), each fund at its latest report since Mar 7, 2026, largest positions first. Bonds, options and short positions are left out.
Activist & Passive Stakes
Schedule 13D / 13G beneficial-ownership filings
- Estate of Rocco A. OrtenzioSCHEDULE 13D/A · activist (13D) · 0 shares0.0%
Jul 1, 2026 · ↗ - JACKSON MARTIN FSCHEDULE 13D/A · activist (13D) · 0 shares0.0%
Jul 1, 2026 · ↗ - ORTENZIO ROBERT ASCHEDULE 13D/A · activist (13D) · 0 shares0.0%
Jul 1, 2026 · ↗ - Paul J. GlazerSCHEDULE 13G · passive (13G) · 6.5M shares5.2%
May 14, 2026 · ↗ - Glazer Capital, LLCSCHEDULE 13G · passive (13G) · 6.5M shares5.2%
May 14, 2026 · ↗
Corporate Lobbying
Estimated quarterly lobbying spending reported under the LDA, filings naming SEM as client
No lobbying filings found naming SEM as the client.
Government Contracts
Federal awards to SEM · USAspending
No federal contract awards found for SEM.
U.S. Patents
Recent USPTO applications naming SEM
No USPTO patent applications found for SEM.
Annual Financials
From SEM's 10-K filings · XBRL
No annual XBRL figures on record for SEM. KeyVex's fundamentals cover about 130 large companies so far.
Stock Splits
Every split and reverse split in the price history
No price history on record for SEM.
Material Events (8-K)
Corporate events filed with the SEC
About SEM
From SEC EDGAR company records
No company profile on record.