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ISSUER PROFILE · CIK 0000883107

NANOPHASE TECHNOLOGIES CorpSLSN

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

Cross-Reference Snapshot

Activist filings
1
1 SC
Distinct filers
1
single filer
Insiders (365d)
0
0 buys · 0 sales
Latest short DTC
18.50
as of 2026-03-31

13D/G Filings Timeline · 1 total

FiledFormFilerStakeSharesIntent
2020-10-01 SC WHITMORE BRADFORD T view →

FINRA Short Interest History

SettlementShort InterestDays to Cover% Δ vs prior
2026-03-31 718,699 18.50 -2.8%
2026-03-13 739,381 27.50 +6.4%
2026-02-27 695,102 43.39 -8.5%
2026-02-13 759,754 23.35 +2.7%
2026-01-30 739,644 21.85 +3.4%
2026-01-15 715,164 22.40 -5.1%
2025-12-31 753,800 19.19 -0.2%
2025-12-15 755,594 19.45 -4.3%

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