PESIPerma-Fix Environmental Services, Inc.

CSNasdaq (XNAS)·USD

Identity

Security key: 20031
Ticker: PESI
Type: CS — Common Stock
Exchange: Nasdaq(XNAS)
Venue group: NASDAQ
Operating MIC: XNAS
Market: stocks
Locale: us
Currency: USD
Listed: 1992-12-08
Round lot: 100
Active: Yes
Last seen in a load: 2026-08-14 20:49
Vendor updated: 2026-08-13 06:09
Ticker root / suffix: PESI

Detail

Enriched 2026-08-14 20:47

Market cap: $411,985,015.36
Shares outstanding (class): 21,203,552
Shares outstanding (weighted): 21,203,552
SIC: 4955 HAZARDOUS WASTE MANAGEMENT
Employees: 307
Location: ATLANTA, GA
Homepage: https://www.perma-fix.com
Description: Perma-Fix Environmental Services Inc is a nuclear services company and provider of nuclear and mixed waste management services. The company's nuclear waste services include treatment and management of radioactive and mixed waste (waste containing both hazardous and low-level radioactive waste). The company operates through two segments: i) The treatment segment: It offers nuclear, low-level radioactive, Mixed, hazardous and non-hazardous waste treatment, processing and disposal services, and ii) the Services segment which generates the majority of the revenue, provides on-site waste management services to commercial and government customers, technology-based services, construction, logistics, and transportation services among others.

Market cap and share counts drift.

Funds holding this security

64 funds · 64 positions · $23.37M reported value, as of 2026-03-31

All holders →

Fund	Ticker	Position value	% of fund	Balance	Match
VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS	VTI	$5.89M	0.00%	550,971 NS	FIGI
iShares Russell 2000 ETF iShares Trust	IWM	$4.51M	0.01%	422,001 NS	FIGI
Heartland Value Fund HEARTLAND GROUP INC.	—	$4.28M	0.44%	400,000 NS	FIGI
VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS	VXF	$2.02M	0.00%	188,634 NS	FIGI
DIAMOND HILL SMALL CAP FUND Diamond Hill Funds	—	$2.00M	0.87%	187,040 NS	FIGI
iShares Russell 2000 Value ETF iShares Trust	IWN	$1.30M	0.01%	121,354 NS	FIGI
ACUITAS US MICROCAP FUND FORUM FUNDS II	—	$544.1K	0.56%	50,900 NS	FIGI
iShares Micro-Cap ETF iShares Trust	IWC	$466.4K	0.04%	43,626 NS	FIGI
Master Small Cap Index Series Quantitative Master Series LLC	—	$324.6K	0.01%	30,367 NS	FIGI
iShares Russell 2000 Growth ETF iShares Trust	IWO	$232.2K	0.00%	21,720 NS	FIGI
EQ/2000 Managed Volatility Portfolio EQ Advisors Trust	—	$220.1K	0.01%	20,585 NS	FIGI
Fidelity Small Cap Value Index Fund Fidelity Salem Street Trust	—	$194.3K	0.01%	18,176 NS	FIGI
LVIP SSGA Small-Cap Index Fund LINCOLN VARIABLE INSURANCE PRODUCTS TRUST	—	$129.3K	0.01%	12,100 NS	FIGI
VANGUARD BALANCED INDEX FUND VANGUARD VALLEY FORGE FUNDS	—	$114.1K	0.00%	10,678 NS	FIGI
Acuitas Small Cap Active ETF Series Portfolios Trust	AIMS	$111.1K	0.15%	10,390 NS	FIGI

How positions resolve to the securities master. FIGI_COMPOSITE is exact identifier equality — both sides got the FIGI from Bloomberg. TICKER is a narrow fallback used only where the master row carries no FIGI at all (2,389 rows do not, disproportionately Irish-domiciled US listings like LIN and ACN). Roughly 22% of all positions resolve to the master.

Funds holding this security

Identifiers

master.security_identifier

TICKERPESI
FIGI_COMPOSITEBBG000BGRMX7
FIGI_SHARE_CLASSBBG001S75KJ1
CIK0000891532
ISINUS7141572039
Resolved through OpenFIGI from a holdings ISIN, not supplied by the securities vendor.

Identifiers

Classification

classification.v_security_classification

Asset class: Equity
Sector: Industrials
Industry: Commercial Services
Source: LLMunreviewed
Self-reported confidence: 0.9
Model: deepseek
Rationale: Hazardous waste management is an environmental service, fitting under commercial services in the industrials sector.

Classifications are unreviewed model output. All 5,771 assignments carry source = LLM and is_reviewed = false. Confidence is the model’s own estimate and is not calibrated — it clustered at 0.90–0.98 across the whole first pass, including rows that later proved wrong. Use it to order a review queue, not as a probability. Two share classes of one issuer can disagree.

Classification

Fund data

Not linked to a fund series.

Either this is not a fund, or it is one the SEC share-class snapshot cannot reach — commodity trusts and notes have no series ID at all.