HEARTLAND ADVISORS INC → PERMA FIX ENVIRONMENTAL SERVICES INC PESI

Stake: — Shares: —

Item 4 — Purpose of Transaction

Not extracted from this filing — typically because it's an amendment (13D/A) and Item 4 is unchanged from the parent filing. Read the raw SEC filing →

Cross-References

Insider Activity (last 365d)

0 transactions

0 buys · 0 sales · 0 awards/exercises

Issuer Cluster

4 13D/G filings on this issuer

3 other filings besides this one

Filer Track Record

4 filings by this filer

3 other filings in the data moat

Short Interest · settle 2026-03-31

DTC 5.48

1,465,706 shares short · +21.6% vs prior

Other 13D/G Filings on PERMA FIX ENVIRONMENTAL SERVICES INC

Filed	Form	Filer	Stake	Shares
2021-11-16	SC	HEARTLAND ADVISORS INC	—	—	view →
2021-01-13	SC	HEARTLAND ADVISORS INC	—	—	view →
2019-12-20	SC	TALANTA Investment Group, LLC	—	—	view →

Other Filings by HEARTLAND ADVISORS INC

Filed	Form	Issuer	Stake	Shares
2021-11-16	SC	PERMA FIX ENVIRONMENTAL SERVICES INC PESI	—	—	view →
2021-01-13	SC	PERMA FIX ENVIRONMENTAL SERVICES INC PESI	—	—	view →
2018-01-09	SC	HARVARD BIOSCIENCE INC HBIO	—	—	view →

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