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ISSUER PROFILE · CIK 0001350653 · CUSIP 02081G102

Alphatec Holdings, Inc.ATEC

1 13D/G filings 1 distinct filers 0 insider transactions (365d)

Post-Filing Returns · across 1 activist filings on this issuer

Median 30d
avg —
Median 60d
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Median 90d
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Median 180d
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Returns measured from each activist filing's date_of_event, split + dividend adjusted via Yahoo Finance.

Cross-Reference Snapshot

Activist filings
1
1 SCHEDULE
Distinct filers
1
single filer
Insiders (365d)
0
0 buys · 0 sales
Latest short DTC
6.95
as of 2026-03-31

13D/G Filings Timeline · 1 total

FiledFormFilerStakeSharesIntent
2025-02-06 SCHEDULE L-5 Healthcare Partners, LLC 6.45% 9,214,698 view →

FINRA Short Interest History

SettlementShort InterestDays to Cover% Δ vs prior
2026-03-31 14,949,106 6.95 -2.4%
2026-03-13 15,320,996 6.01 +11.5%
2026-02-27 13,742,788 5.26 -3.9%
2026-02-13 14,300,801 5.19 -1.5%
2026-01-30 14,523,843 4.63 -12.4%
2026-01-15 16,581,392 3.46 -3.8%
2025-12-31 17,231,255 9.96 +16.5%
2025-12-15 14,787,274 6.63 +8.2%

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