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ISSUER PROFILE · CIK 0001350653 · CUSIP 02081G102

Alphatec Holdings, Inc.ATEC

3 13D/G filings 1 distinct filers 0 insider transactions (365d)

Post-Filing Returns · across 2 activist filings on this issuer

Median 30d
+5.2%
avg +5.2%
Median 60d
+0.5%
avg +0.5%
Median 90d
+7.1%
avg +7.1%
Median 180d
+28.9%
avg +28.9%

Returns measured from each activist filing's date_of_event, split + dividend adjusted via Yahoo Finance.

Cross-Reference Snapshot

Activist filings
3
2 SCHEDULE · 1 SC
Distinct filers
1
single filer
Insiders (365d)
0
0 buys · 0 sales
Latest short DTC
5.73
as of 2026-07-15

13D/G Filings Timeline · 3 total

FiledFormFilerStakeSharesIntent
2025-04-11 SCHEDULE L-5 Healthcare Partners, LLC 5.30% 7,699,315 view →
2025-02-06 SCHEDULE L-5 Healthcare Partners, LLC 6.45% 9,214,698 view →
2019-03-07 SC L-5 Healthcare Partners, LLC view →

FINRA Short Interest History

SettlementShort InterestDays to Cover% Δ vs prior
2026-07-15 13,748,220 5.73 -5.9%
2026-06-30 14,616,529 3.60 +18.3%
2026-06-15 12,358,418 5.09 +3.0%
2026-05-29 12,004,189 4.73 -15.3%
2026-05-15 14,178,002 2.16 +18.9%
2026-04-30 11,919,996 4.13 -15.2%
2026-04-15 14,049,298 6.48 -6.0%
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%

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