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ATEC — structural market context

Alphatec Holdings, Inc.

Structural market context from public regulatory and market data, shown with its as-of dates. Descriptive only: nothing on this page is a recommendation, a prediction, or advice to buy or sell any security.

What changed

As of the close on Oct 16. Each line shows the earlier value, the later value and their dates.

Price

Close $10.46 (Oct 16) vs $10.93 (Oct 15): −4.30%.

Volume

1.28× its 20-session average (2.1M) on Oct 16.

Includes pre- and post-market trading.

Short interest

Short interest 14.1M shares (settlement Sep 30) vs 14.4M (Sep 15).

No new publication in this window. Latest: settlement Sep 30, published Oct 10.

Fails-to-deliver

Latest file (settlements Sep 15–Sep 30, published Oct 16): no fails listed.

Previous file (settlements Sep 1–Sep 14, published Sep 30): 3 days with fails, largest 10K shares on Sep 14.

Insider filings (Form 4)

None recorded in this window.

ATEC short interest & days to cover

SHARES SHORT
14.1M
% OF FLOAT
—
DAYS TO COVER
7.0
CHANGE VS PRIOR
-2.5%

FINRA consolidated short interest, reported twice a month and published ~2 weeks after each settlement date. % of float uses reported free float. · as of 2026-09-30 (18d ago)

ATEC fails-to-deliver (FTD)

Settlement dateFailed sharesPrice
2026-09-14 · 34d10K$10.58
2026-09-11 · 37d187$8.84
2026-09-08 · 40d7K$9.45

SEC fails-to-deliver files, published twice a month with ~6 weeks of delay.

ATEC insider buying and selling (Form 4)

Last 12 months, Form 4 codes P and S: 1 purchase · 0 sales

InsiderTypeSharesValueFiled
Miles Patrick · director, officer: CEOBuy (P)115K$1.0M2026-09-10

SEC Form 4 filings: purchases and sales reported on Form 4 (transaction codes P and S) only; grants and option exercises excluded. Attributed public records.

Frequently asked questions

Are insiders buying ATEC?
In the last 12 months of SEC Form 4 filings, ATEC recorded 1 insider purchase and 0 sales reported on Form 4 (transaction codes P and S; grants and option exercises excluded). These are attributed public records — information, not instruction.
Is this page telling me to buy or sell ATEC?
No. Everything on this page is descriptive, structural market context from public data, shown with its as-of dates. TradeAI News does not issue directional recommendations, price predictions, or buy/sell advice — for any ticker.
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ATEC: the full history

Latest rows shown. Full history, market-wide screens, cluster detection and the context journal live in the dashboard.

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Not financial advice. Trading involves risk. Descriptive structural context, never a recommendation.