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ISSUER PROFILE · CIK 0001844971 · CUSIP 39531G100

Greenidge Generation Holdings Inc.GREEL

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

Post-Filing Returns · across 3 activist filings on this issuer

Median 30d
0.0%
avg 0.0%
Median 60d
0.0%
avg 0.0%
Median 90d
0.0%
avg 0.0%
Median 180d
0.0%
avg 0.0%

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

Cross-Reference Snapshot

Activist filings
3
1 SCHEDULE 13D/A · 2 SCHEDULE
Distinct filers
1
single filer
Insiders (365d)
0
0 buys · 0 sales
Latest short DTC
1.00
as of 2026-09-30

13D/G Filings Timeline · 3 total

FiledFormFilerStakeSharesIntent
2026-07-08 SCHEDULE 13D/A Atlas Capital Resources (A9) LP 23.10% 2,913,565 view →
2026-01-12 SCHEDULE Atlas Capital Resources (A9) LP 25.00% 3,956,317 view →
2025-01-28 SCHEDULE Atlas Capital Resources (A9) LP 27.40% 3,551,820 view →

FINRA Short Interest History

SettlementShort InterestDays to Cover% Δ vs prior
2026-09-30 1,663 1.00 -89.2%
2026-09-15 15,367 1.51 +409.2%
2026-08-31 3,018 1.04 -18.9%
2026-08-14 3,722 1.00 +284.9%
2026-07-31 967 1.00 -75.4%
2026-07-15 3,934 1.33 +164.2%
2026-06-30 1,489 1.00 -79.4%
2026-06-15 7,217 2.32 +225.5%
2026-05-29 2,217 1.00 +14.1%
2026-05-15 1,943 1.00 -2.2%
2026-04-30 1,987 1.00 +9.7%
2026-04-15 1,812 1.00 +38.6%

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