Stocks › ATEC
Alphatec Holdings, Inc.
ATEC·Nasdaq·
United States·USD
United States·USD$10.25
-0.29 (-2.75%)
Close · Oct 7, 2026 · Close Prices from Tiingo.com
ATEC
Alphatec Holdings, Inc. · Nasdaq
Nasdaq 100S&P 500
Filings
Default90D1Y5YALL
ATECS&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 ATEC by members of U.S. Congress · 1 on record
| Politician | Stock | Type | Filed | Traded | |
|---|---|---|---|---|---|
 John K. DelaneyHouse · D · MD |
ATECAlphatec Holdings, Inc. · stock |
Sale $1,001 - $15,000 |
Aug 15, 2018 | Jul 17, 2018 | Filing ↗ |
Whale Activity
Position changes in ATEC reported for 2026-06-30 by 13 tracked institutional filers
- Increased4
- New0
- Held1
- Decreased4
- Closed2
- No prior filing2
| Filer | Shares | Value | Change |
|---|---|---|---|
| BlackRock, Inc. | 11.3M | $98.0M | increased |
| VANGUARD CAPITAL MANAGEMENT LLC | 5.1M | $44.3M | increased |
| CITADEL ADVISORS LLC | 2.5M | $21.3M | increased |
| SILVERBACK ASSET MANAGEMENT LLC | 22.0M | $21.0M | — |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1.2M | $10.4M | increased |
| MILLENNIUM MANAGEMENT LLC | 1.1M | $9.9M | decreased |
| BlackRock, Inc. | 7.9M | $7.6M | decreased |
| TWO SIGMA INVESTMENTS, LP | 823.5K | $7.1M | decreased |
| RENAISSANCE TECHNOLOGIES LLC | 284.5K | $2.5M | decreased |
| SMH CAPITAL ADVISORS INC | 1.5M | $1.4M | — |
| MILLENNIUM MANAGEMENT LLC | 350.0K | $334K | held |
| Point72 Asset Management | 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 ATEC insiders, by quarter · Form 4
Recent Insider Transactions
1,103 transactions on record · newest first
| Insider | Type | Shares | Price | Value | Date | |
|---|---|---|---|---|---|---|
| Miles PatrickCEO · Director | Purchase | +115.0K | $8.81 | $1.0M | Sep 10, 2026 | Form 4 ↗ |
| Marshall Tyson EliotGENERAL COUNSEL & CORP. SEC. | Sale | −8,168 | $9.65 | $79K | Aug 5, 2026 | Form 4 ↗ |
| MCGINNIS KAREN KDirector | Sale | −6,050 | $8.01 | $48K | Jun 11, 2026 | Form 4 ↗ |
| Pelizzon David RDirector | Grant / award | +32.0K | $0.00 | $0 | Jun 10, 2026 | Form 4 ↗ |
| Blackford Quentin S.Director | Grant / award | +32.0K | $0.00 | $0 | Jun 10, 2026 | Form 4 ↗ |
| Demski David MDirector | Grant / award | +32.0K | $0.00 | $0 | Jun 10, 2026 | Form 4 ↗ |
| Berkowitz Mortimer IIIDirector | Grant / award | +32.0K | $0.00 | $0 | Jun 10, 2026 | Form 4 ↗ |
| Valentine KeithDirector | Grant / award | +32.0K | $0.00 | $0 | Jun 10, 2026 | Form 4 ↗ |
| MCGINNIS KAREN KDirector | Grant / award | +32.0K | $0.00 | $0 | Jun 10, 2026 | Form 4 ↗ |
| Valentine KeithDirector | Purchase | +35.0K | $7.00 | $245K | May 11, 2026 | Form 4 ↗ |
| Valentine KeithDirector | Purchase | +43.8K | $7.54 | $331K | May 8, 2026 | Form 4 ↗ |
| Valentine KeithDirector | Purchase | +56.2K | $7.49 | $421K | May 7, 2026 | Form 4 ↗ |
| Marshall Tyson EliotGENERAL COUNSEL & CORP. SEC. | Tax withholding | −23.4K | $11.03 | $258K | Apr 7, 2026 | Form 4 ↗ |
| Marshall Tyson EliotGENERAL COUNSEL & CORP. SEC. | Option exercise | +60.0K | $2.69 | $161K | Apr 7, 2026 | Form 4 ↗ |
| Marshall Tyson EliotGENERAL COUNSEL & CORP. SEC. | Option exercise | +12.5K | $3.34 | $42K | Apr 7, 2026 | Form 4 ↗ |
| Marshall Tyson EliotGENERAL COUNSEL & CORP. SEC. | Option exercise | +15.0K | $1.68 | $25K | Apr 7, 2026 | Form 4 ↗ |
| Marshall Tyson EliotGENERAL COUNSEL & CORP. SEC. | Option exercise | +15.0K | $1.98 | $30K | Apr 7, 2026 | Form 4 ↗ |
| Lish ScottCHIEF OPERATING OFFICER | Sale | −260.5K | $12.30 | $3.2M | Mar 13, 2026 | Form 4 ↗ |
| Koning John ToddCHIEF FINANCIAL OFFICER | Sale | −79.8K | $12.36 | $986K | Mar 13, 2026 | Form 4 ↗ |
| Sponsel DavidEVP, SALES | Sale | −163.5K | $12.52 | $2.0M | Mar 11, 2026 | Form 4 ↗ |
Fund Holders
Mutual funds and ETFs holding ATEC · SEC Form N-PORT
| Fund | Shares | Value | % of fund | As of |
|---|---|---|---|---|
| Small Cap Growth Fund American Century Mutual Funds, Inc. | 4.9M | $46.7M | 0.84% | Jul 31, 2026 |
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 3.6M | $31.6M | 0.00% | Jun 30, 2026 |
| iShares Russell 2000 ETF iShares Trust | 3.2M | $27.9M | 0.03% | Jun 30, 2026 |
| VANGUARD MID-CAP GROWTH FUND VANGUARD WHITEHALL FUNDS | 2.2M | $20.9M | 0.78% | Jul 31, 2026 |
| Hood River Small-Cap Growth Fund Manager Directed Portfolios | 1.5M | $16.4M | 0.31% | Mar 31, 2026 |
| Fidelity Small Cap Index Fund Fidelity Salem Street Trust | 1.4M | $12.9M | 0.04% | Jul 31, 2026 |
| VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS | 1.3M | $11.6M | 0.01% | Jun 30, 2026 |
| Nomura Small Cap Growth Fund IVY FUNDS | 1.3M | $11.5M | 0.98% | Jun 30, 2026 |
| College Retirement Equities Fund - Total Global Stock Account College Retirement Equities Fund | 1.3M | $11.4M | 0.01% | Jun 30, 2026 |
| Oberweis Micro-Cap Fund OBERWEIS FUNDS | 929.3K | $10.1M | 0.96% | Mar 31, 2026 |
Mutual funds and ETFs whose N-PORT filings list ATEC's shares (CUSIP 02081G201), each fund at its latest report since Mar 8, 2026, largest positions first. Bonds, options and short positions are left out.
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 Alphatec Holdings, Inc. as client
No lobbying filings found naming Alphatec Holdings, Inc. as the client.
Government Contracts
Federal awards to Alphatec Holdings, Inc. · USAspending
No federal contract awards found for Alphatec Holdings, Inc..
U.S. Patents
Recent USPTO applications naming Alphatec Holdings, Inc.
No USPTO patent applications found for Alphatec Holdings, Inc..
Annual Financials
From ATEC's 10-K filings · XBRL
No annual XBRL figures on record for ATEC. KeyVex's fundamentals cover about 130 large companies so far.
Stock Splits
Every split and reverse split in the price history
- 1-for-12Reverse splitAug 25, 2016
Split dates and ratios from the price history · Close Prices from Tiingo.com
Material Events (8-K)
Corporate events filed with the SEC
About Alphatec Holdings, Inc.
From SEC EDGAR company records
Industry (SIC 3841)Surgical & Medical Instruments & Apparatus
SectorHealthcare
HeadquartersCARLSBAD, CA
IncorporatedDE
SEC CIK0001350653 ↗
Former namesAlphatec Holdings, Inc.