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PESI · Perma Fix Environmental Services Inc · Holdings

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$12.92 +0.70 (+5.73%) At close · Oct 27 Q2 2026 earnings call transcript
Russell 2000 member Rebalance outlook locked
Going-concern doubt — flagged Aug 12, 2026

Substantial doubt about the company's ability to continue as a going concern.

“Because these customers do not provide binding assurances regarding the timing or volume of future work, and such activity is subject to appropriations, procurement processes, operational considerations and other factors outside the Company's control, management could not conclude that its plans are probable of effectively mitigating the conditions giving rise to substantial doubt. Accordingly, substantial doubt continues to exist about the Company's ability to continue as a going concern for one year following the date the accompanying Condensed Consolidated Financial Statements are issued. Although the May 2026 equity offering strengthened the Company's liquidity, management concluded that the substantial doubt was not alleviated.”
View the 10-Q filed Aug 12, 2026
Customer concentration — key customers 61.4% of revenue

Key customers — 61.4% of revenue (the three months ended March 31, 2026)

“We performed services relating to waste generated by federal government clients, either indirectly as a subcontractor or directly as a prime contractor to federal government entities, representing approximately $6,836,000 or 61.4% of our total revenue during the three months ended March 31, 2026, as compared to $8,404,00 or 60.4% of our total revenue during the corresponding period of 2025.”

Key customers — 60.4% of revenue (the corresponding period of 2025)

“We performed services relating to waste generated by federal government clients, either indirectly as a subcontractor or directly as a prime contractor to federal government entities, representing approximately $6,836,000 or 61.4% of our total revenue during the three months ended March 31, 2026, as compared to $8,404,00 or 60.4% of our total revenue during the corresponding period of 2025.”
View the 10-Q filed May 7, 2026
Market Cap
$259.29M
Shares
21.22M
Volume · Oct 27 359.68K Avg daily vol (3M) 370.37K

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP → See every holder of PESI: 13F, 13D and 13G, insiders and funds →
Institutional holdings are being reconciled with SEC filings. Holder totals and changes may be incomplete until reconciliation finishes.
The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.
Holders: 90
Total Value: $136,820,891
Total Shares: 9,560,844

Institutional Ownership Trend

27 quarters

Holder Concentration

Across 88 13F filers
Top Holder
13.1%
Sep 2023 → Jun 2026 · range 13.1% – 18.6%
of institutional value
Top 5
47.2%
Sep 2023 → Jun 2026 · range 47.2% – 58.1%
of institutional value
Top 10
71.1%
Sep 2023 → Jun 2026 · range 70.1% – 78.5%
of institutional value
HHI
622
Sep 2023 → Jun 2026 · range 622 – 884
Broadly held

Who Holds PESI

Last 8 quarters through Sep 30, 2026 (filing window open)

Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.

Jun 30, 2026, the newest closed quarter: 88 filers, like-for-like change +25.1%; actively managed books +37.9%; index-like books +7.2%.

Holder type Share Filers Change
Registered adviser 61.1% 40 +30.9%
Exempt adviser 0.2% 2 new
Adviser 1.3% 1 -8.5%
Bank 6.9% 10 +0.9%
Broker-dealer 1.3% 1 -50.5%
Benefit plan 0.0% 1 -74.0%
Non-US 0.2% 3 -2.4%
Holding company 16.7% 7 +12.5%
Insurer 0.0% 0 —
Unknown 12.3% 23 +67.6%

The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.

How the mix is measured

Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.

Excluded 1 holder with no observed 2026-03-31 13F and 2 holders with no observed 2026-06-30 13F.

Conviction and Crowding

88 13F filers, quarter ended Jun 30, 2026

Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.

Conviction holders
2
2.27% of filers hold it in their top 10
Mar 31, 2026: 1
Holders above 5%
2
median weight 0.000%
Mar 31, 2026: 0
Crowding
23.6%
of shares outstanding, 68th percentile
Mar 31, 2026: 16.5%
Private-fund advisers
21.2%
of shares outstanding
Institutional ownership
51.0%
55.0% of the estimated free float
Top 10 holders
71.9%
of 13F shares, Herfindahl 0.063
Active holders
+37.9%
like-for-like share change of active filers
5% stakes on record
2
0 13D, 2 13G (1 institutional, 1 passive, 0 exempt)
How long holders have held it value-weighted 9.1 quarters
Under 1 year 30.3% 1 to 3 years 48.3% 3 years or more 21.4% Since coverage start 0.000%

Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).

Estimated Holder Cost Basis

Quarter ended Jun 30, 2026, on that quarter's share basis

Estimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.

Estimated avg cost
$11.26
estimated per share
Mar 31, 2026: $11.45
Quarter-end price
$14.29
implied by 13F values
Estimated gain or loss
+26.9%
price against the estimated cost
Estimated at a loss
0.000%
of costed 13F value

Estimated cost covers 56.6% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.

Shared Holders

Companies PESI's active holders also own, quarter ended Jun 30, 2026
# Company Shared holders
1 VICR Vicor Corp 3
2 BABA Alibaba Group Holding Ltd 3
3 CI Cigna Group 3
4 COF Capital One Financial Corp 3
5 RTX RTX Corp 5
6 ABT Abbott Laboratories 4
7 BIL State Street SPDR Bloomberg 1-3 Month T-Bill ETF 4
8 MSFT Microsoft Corp 6
9 T At&T Inc. 3
10 GOOGL Alphabet Inc. 6

Shareholder Targets

13F filers that own its peers but not PESI, quarter ended Jun 30, 2026

Found through its holder-overlap peers: VICR, BABA, CI, COF, RTX, ABT, BIL, MSFT, T, GOOGL, BAC, MS, MU, UNP, NVDA, CSCO, COST, AMZN, AAPL, ABBV. 7,305 filers in all.

# Filer In peers
1 Invesco Ltd. Adviser, Diversified active $334,162,053,954 20 held
2 NORGES BANK Non-US, Index-like $305,564,226,069 18 held
3 Capital Research Global Investors Adviser, Diversified active $204,756,248,945 17 held
4 Capital World Investors Adviser, Diversified active $174,850,326,965 17 held
5 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC Registered adviser, Index-like $170,508,605,484 20 held
6 Berkshire Hathaway Inc Insurer, Concentrated $131,860,036,276 4 held
7 Amundi Holding company, Index-like $118,887,513,480 19 held
8 Capital International Investors Adviser, Diversified active $118,211,429,472 17 held
9 FRANKLIN RESOURCES INC Adviser, Diversified active $116,406,863,388 20 held
10 WELLINGTON MANAGEMENT GROUP LLP Holding company, Diversified active $110,189,270,642 20 held

Fund Ownership of PESI by Fund Type

Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026

Index funds and index ETFs hold 10.19% of shares outstanding.

Fund type Of shares outstanding Shares
Index funds 2.69% 570,686
Index ETFs 7.50% 1,591,712
Active ETFs 0.27% 57,315
Active funds 5.38% 1,142,037
Unclassified 0.10% 20,979
All registered funds 15.94% 3,382,729
How fund types are measured

Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.

Holder type: Registered adviser 42 Exempt adviser 2 Adviser 1 Bank 10 Broker-dealer 1 Benefit plan 1 Non-US 3 Holding company 7 Unknown 23
Showing 93 of 93
All Common Calls Puts
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Holder Value (USD) % of 13F Shares Open
BlackRock, Inc. $17,901,881 13.08% 1,252,756
MAK CAPITAL ONE LLC $14,760,969 10.79% 1,032,958
VANGUARD CAPITAL MANAGEMENT LLC $11,599,807 8.48% 811,743
Prescott Group Capital Management, L.L.C. $11,105,359 8.12% 777,142
DIAMOND HILL CAPITAL MANAGEMENT INC $9,181,796 6.71% 642,533
KENNEDY CAPITAL MANAGEMENT LLC $8,729,803 6.38% 610,903
Potomac Capital Management, Inc. $6,816,330 4.98% 477,000
GEODE CAPITAL MANAGEMENT, LLC $6,504,179 4.75% 455,156
HEARTLAND ADVISORS INC $5,716,000 4.18% 400,000
STATE STREET CORP $4,997,841 3.65% 349,744
DIMENSIONAL FUND ADVISORS LP $2,730,288 2.00% 191,063
GOLDMAN SACHS GROUP INC $2,325,768 1.70% 162,755
SUSQUEHANNA INTERNATIONAL GROUP, LLP $2,242,586 1.64% 156,934
CITADEL ADVISORS LLC $2,181,025 1.59% 152,626
NORTHERN TRUST CORP $2,024,020 1.48% 141,639
North Star Investment Management Corp. $1,886,325 1.38% 120,532
VANGUARD FIDUCIARY TRUST CO $1,758,241 1.29% 123,040
GROUP ONE TRADING LLC $1,752,111 1.28% 122,611
VANGUARD PORTFOLIO MANAGEMENT LLC $1,732,905 1.27% 121,267
Diametric Capital, LP $1,639,263 1.20% 114,714
MYDA Advisors LLC $1,286,100 0.94% 90,000
CM WEALTH ADVISORS LLC $1,255,219 0.92% 87,839
XTX Topco Ltd $898,669 0.66% 62,888
SUSQUEHANNA INTERNATIONAL GROUP, LLP $878,835 0.64% 61,500
Owls Nest Partners IA, LLC $808,170 0.59% 56,555
Pale Fire Capital SE $794,909 0.58% 55,627
MORGAN STANLEY $758,567 0.55% 53,084
JANE STREET GROUP, LLC $666,642 0.49% 46,651
CHARLES SCHWAB INVESTMENT MANAGEMENT INC $646,608 0.47% 45,249
GatePass Capital, LLC $639,363 0.47% 44,742
CORSAIR CAPITAL MANAGEMENT, L.P. $609,454 0.45% 42,649
BANK OF AMERICA CORP /DE/ $591,191 0.43% 41,371
SEI INVESTMENTS CO $586,204 0.43% 41,022
Bank of New York Mellon Corp $544,461 0.40% 38,101
ALLIANCEBERNSTEIN L.P. $469,426 0.34% 32,850
SIMPLEX TRADING, LLC $452,035 0.33% 31,633
UBS Group AG $450,034 0.33% 31,493
SUSQUEHANNA INTERNATIONAL GROUP, LLP $447,277 0.33% 31,300
Squarepoint Ops LLC $442,647 0.32% 30,976
WELLS FARGO & COMPANY/MN $418,739 0.31% 29,303
D. E. Shaw & Co., Inc. $355,220 0.26% 24,858
BROWN ADVISORY INC $333,428 0.24% 23,333
Nuveen, LLC $320,867 0.23% 22,454
Trexquant Investment LP $313,636 0.23% 21,948
RHUMBLINE ADVISERS $298,360 0.22% 20,879
Rothschild Wealth LLC $294,374 0.22% 20,600
BAILARD, INC. $278,570 0.20% 17,800
Quadrature Capital Ltd $271,038 0.20% 18,967
FIFTH LANE CAPITAL, LP $257,220 0.19% 18,000
GUIDANCE CAPITAL, INC $238,400 0.17% 16,683
IMC-Chicago, LLC $235,284 0.17% 16,465
Quent Capital, LLC $231,483 0.17% 16,199
OSAIC HOLDINGS, INC. $227,211 0.17% 15,900
DEUTSCHE BANK AG\ $219,579 0.16% 15,366
CITADEL ADVISORS LLC $197,202 0.14% 13,800
PRICE T ROWE ASSOCIATES INC /MD/ $166,921 0.12% 11,681
Vident Advisory, LLC $148,473 0.11% 10,390
MetLife Investment Management, LLC $134,468 0.10% 9,410
Russell Investments Group, Ltd. $124,765 0.09% 8,731
CITIGROUP INC $117,734 0.09% 8,239
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. $115,963 0.08% 8,115
JPMORGAN CHASE & CO $106,730 0.08% 7,469
Vanguard Global Advisers, LLC $82,053 0.06% 5,742
Police & Firemen's Retirement System of New Jersey $80,724 0.06% 5,649
Capital Advisors, Ltd. LLC $78,250 0.06% 5,000
NEW YORK STATE COMMON RETIREMENT FUND $62,876 0.05% 4,400
FMR LLC $59,745 0.04% 4,181
Persistent Asset Partners Ltd $55,902 0.04% 3,912
BARCLAYS PLC $38,697 0.03% 2,708
BNP PARIBAS ARBITRAGE, SA $35,467 0.03% 2,482
Tower Research Capital LLC (TRC) $25,493 0.02% 1,784
Legal & General Group Plc $22,263 0.02% 1,558
Ameritas Investment Partners, Inc. $17,605 0.01% 1,232
Global Retirement Partners, LLC $10,631 0.01% 744
Sterling Capital Management LLC $8,654 0.01% 553
ROYAL BANK OF CANADA $8,273 0.01% 579
GAMMA Investing LLC $6,573 0.00% 420
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM $3,472 0.00% 243
Arax Advisory Partners $1,286 0.00% 90
NISA INVESTMENT ADVISORS, LLC $1,111 0.00% 71
Torren Management, LLC $757 0.00% 53
Caitong International Asset Management Co., Ltd $685 0.00% 48
Farther Finance Advisors, LLC $641 0.00% 41
EverSource Wealth Advisors, LLC $457 0.00% 32
Root Financial Partners, LLC $406 0.00% 26
ROTHSCHILD INVESTMENT LLC $285 0.00% 20
SJS Investment Consulting Inc. $266 0.00% 17
Essential Partners LLC $140 0.00% 9
CoreCap Advisors, LLC $78 0.00% 5
Allworth Financial LP $71 0.00% 5
Optiver Holding B.V. $28 0.00% 2
SBI Securities Co., Ltd. $15 0.00% 1
MORGAN DEMPSEY CAPITAL MANAGEMENT LLC $14 0.00% 1
Key facts CIK 891532 CUSIP 714157203 13F (30d) 12 filings 12 filers Visit website Investor relations