Stocks › CEM
CEM
CEM·USD
$51.95
+7.31 (+16.39%)
Close · Oct 6, 2026 · Close Prices from Tiingo.com
CEM
CEM
Nasdaq 100S&P 500
Filings
Default90D1Y5YALL
CEMS&P 500 (rebased)
Congress BuyCongress SellInsider BuyInsider SellForm 1448-K ResultsLobbying
Loading price history…
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 CEM by members of U.S. Congress · 1 on record
| Politician | Stock | Type | Filed | Traded | |
|---|---|---|---|---|---|
 Thomas R CarperSenate · D · DE |
CEMCEM · Stock |
Sale $1,001 - $15,000 |
Jan 4, 2022 | Dec 21, 2021 | Filing ↗ |
Whale Activity
Institutional 13F positions
No 13F positions in CEM among the institutional filers we track.
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 CEM insiders, by quarter · Form 4
No open-market insider buys or sells in the last two years.
Recent Insider Transactions
431 transactions on record · newest first
| Insider | Type | Shares | Price | Value | Date | |
|---|---|---|---|---|---|---|
| PRUDENTIAL FINANCIAL INC10% owner | Other | −285.7K | $35.00 | $10.0M | Sep 9, 2024 | Form 4 ↗ |
| PRUDENTIAL FINANCIAL INC10% owner | Other | −160 | $100000.00 | $16.0M | Sep 9, 2024 | Form 4 ↗ |
| Corebridge Financial, Inc. | Other | −2.1M | $0.00 | $0 | Sep 9, 2024 | Form 4 ↗ |
| Corebridge Financial, Inc. | Other | −1.5M | $0.00 | $0 | Sep 9, 2024 | Form 4 ↗ |
| Corebridge Financial, Inc. | Other | −559.6K | $0.00 | $0 | Sep 9, 2024 | Form 4 ↗ |
| Corebridge Financial, Inc. | Other | −82 | $0.00 | $0 | Sep 9, 2024 | Form 4 ↗ |
| Corebridge Financial, Inc. | Other | −44 | $0.00 | $0 | Sep 9, 2024 | Form 4 ↗ |
| Saba Capital Management, L.P.10% owner | Tender of shares | −2.2M | $49.60 | $108.6M | Jun 21, 2024 | Form 4 ↗ |
| AMERICAN INTERNATIONAL GROUP, INC. | Other | −56 | $0.00 | $0 | Jun 9, 2024 | Form 4 ↗ |
| AMERICAN INTERNATIONAL GROUP, INC. | Other | −30 | $0.00 | $0 | Jun 9, 2024 | Form 4 ↗ |
| AMERICAN INTERNATIONAL GROUP, INC. | Other | −2.1M | $0.00 | $0 | Jun 9, 2024 | Form 4 ↗ |
| AMERICAN INTERNATIONAL GROUP, INC. | Other | −1.5M | $0.00 | $0 | Jun 9, 2024 | Form 4 ↗ |
| AMERICAN INTERNATIONAL GROUP, INC. | Other | −559.6K | $0.00 | $0 | Jun 9, 2024 | Form 4 ↗ |
| Saba Capital Management, L.P.10% owner | Purchase | +300 | $38.34 | $12K | Dec 6, 2023 | Form 4 ↗ |
| Saba Capital Management, L.P.10% owner | Purchase | +23.0K | $38.63 | $888K | Dec 5, 2023 | Form 4 ↗ |
| Weinstein Boaz10% owner | Purchase | +17.4K | $38.66 | $672K | Dec 4, 2023 | Form 4 ↗ |
| Weinstein Boaz10% owner | Purchase | +13.4K | $38.78 | $521K | Dec 1, 2023 | Form 4 ↗ |
| Saba Capital Management, L.P.10% owner | Purchase | +19.3K | $38.36 | $742K | Nov 30, 2023 | Form 4 ↗ |
| Saba Capital Management, L.P.10% owner | Purchase | +26.4K | $37.39 | $989K | Nov 29, 2023 | Form 4 ↗ |
| Weinstein Boaz10% owner | Purchase | +28.5K | $36.79 | $1.0M | Nov 28, 2023 | Form 4 ↗ |
Fund Holders
Mutual funds and ETFs holding CEM · SEC Form N-PORT
Funds report their holdings by CUSIP, and CEM could not be matched to one, so no fund holdings are shown.
Activist & Passive Stakes
Schedule 13D / 13G beneficial-ownership filings
No 13D/13G beneficial-ownership filings on record.
Corporate Lobbying
Estimated quarterly lobbying spending reported under the LDA, filings naming CEM as client
No lobbying filings found naming CEM as the client.
Government Contracts
Federal awards to cem · USAspending
$560KAwarded · 12 contracts on record
- Department of AgricultureSOLVENT EXTRACTOR SYSTEM$47K
Sep 11, 2026 · ↗ - Department of AgricultureMICROWAVE DIGESTION UNIT, CEM MARSXPRESS 2.0 208/230V 60HZ$27K
Sep 3, 2026 · ↗ - Department of Health and Human ServicesA SERVICE MAINTENANCE AGREEMENT FOR 2 (TWO) CEM MICROWAVE DIGESTIVE SYSTEMS S/N: MY1046, MY2706$4K
Feb 28, 2024 · ↗ - Department of the InteriorEDGE INSTRUMENT$50K
Aug 28, 2026 · ↗ - Department of Health and Human ServicesAN 1800 W DUAL MAGNETRON LABORATORY MICROWAVE INSTRUMENT EO 14398$46K
Aug 28, 2026 · ↗ - Department of Health and Human ServicesCEM LIBERTY BLUE PEPTIDE MAINTENANCE$46K
Aug 21, 2025 · ↗ - Environmental Protection AgencyTHE PURCHASE OF AN AUTOMATED EXTRACTION SYSTEM CAPABLE OF AUTOMATING SAMPLE PREPARATION FROM SOIL SAMPLES FOR EPA METHODS 3545A WHILE MEETIN$105K
Aug 21, 2026 · ↗ - Department of Health and Human ServicesCEM MARS 6 PREVENTATIVE MAINTENANCE (2-UNITS)$8K
Jun 6, 2025 · ↗
U.S. Patents
Recent USPTO applications naming CEM
No USPTO patent applications found for CEM.
Annual Financials
From CEM's 10-K filings · XBRL
No annual XBRL figures on record for CEM. KeyVex's fundamentals cover about 130 large companies so far.
Stock Splits
Every split and reverse split in the price history
- 1-for-5Reverse splitJul 28, 2020
Split dates and ratios from the price history · Close Prices from Tiingo.com
Material Events (8-K)
Corporate events filed with the SEC
No 8-K filings on record.
About CEM
From SEC EDGAR company records
No company profile on record.