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ISSUER PROFILE · CIK 0001178697 · CUSIP 83548F309

SONIM TECHNOLOGIES INCSONM

9 13D/G filings 3 distinct filers 0 insider transactions (365d)

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

Median 30d
avg —
Median 60d
avg —
Median 90d
avg —
Median 180d
avg —

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

Cross-Reference Snapshot

Activist filings
9
3 SCHEDULE · 6 SC
Distinct filers
3
multi-activist cluster
Insiders (365d)
0
0 buys · 0 sales
Latest short DTC
1.90
as of 2026-05-29

13D/G Filings Timeline · 9 total

FiledFormFilerStakeSharesIntent
2025-05-19 SCHEDULE AJP Holding Company, LLC 19.10% 1,972,124 view →
2025-03-24 SCHEDULE AJP Holding Company, LLC 33.10% 1,947,345 view →
2025-01-17 SCHEDULE AJP Holding Company, LLC 48.30% 19,463,452 view →
2022-10-25 SC AJP Holding Company, LLC view →
2021-09-03 SC B. Riley Financial, Inc. view →
2021-08-27 SC B. Riley Financial, Inc. view →
2021-03-16 SC B. Riley Financial, Inc. view →
2020-09-21 SC 180 DEGREE CAPITAL CORP. /NY/ view →
2020-06-29 SC B. Riley Financial, Inc. view →

FINRA Short Interest History

SettlementShort InterestDays to Cover% Δ vs prior
2026-05-29 55,934 1.90 -10.9%
2026-05-15 62,760 4.77 -26.5%
2026-04-30 85,395 2.73 +168.1%
2026-04-15 31,848 1.10 -56.4%
2026-03-31 72,972 1.00 +10.3%
2026-03-13 66,171 2.78 +30.9%
2026-02-27 50,557 1.00 +36.8%
2026-02-13 36,965 1.40 -36.9%
2026-01-30 58,615 1.00 -19.1%
2026-01-15 72,446 1.24 -12.0%
2025-12-31 82,334 1.03 +53.1%
2025-12-15 53,767 1.98 +1.6%

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