PESI · Perma Fix Environmental Services Inc · Shareholders & Ownership
$12.92
+0.70 (+5.73%)
At close · Oct 27
View the 10-Q filed May 7, 2026
Return incl. dividend (before tax)
Q2 2026 earnings call transcript
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.”
Market Cap
$259.29M
Shares
21.22M
Volume · Oct 27
359.68K
Avg daily vol (3M)
370.37K
Every disclosed holder of PESI in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns PESI
13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 9,454,244 | 44.56% |
| Insiders (Forms 3, 4, 5) | 1,379,350 | 6.50% |
| 13D/G-only blocks | 2,249,986 | 10.60% |
| Remaining | 8,134,771 | 38.34% |
| Registered funds (N-PORT, not summed) | 3,395,863 | 16.00% |
Shares outstanding: 21,218,351, the issuer's latest cover-page count restated onto today's split basis.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of PESI
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
|
2,249,986 | ||
| 2 |
BlackRock, Inc.
13F
CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,252,756 | ||
| 2.1 |
iShares Russell 2000 ETF
Fund
S000004344 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
460,188 | ||
| 2.2 |
iShares Russell 2000 Growth ETF
Fund
S000004343 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
143,792 | ||
| 2.3 |
iShares Micro-Cap ETF
Fund
S000004439 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
59,246 | ||
| 2.4 |
Master Small Cap Index Series
Fund
S000002716 · Registered fund · Jun 30, 2026
Quantitative Master Series LLC, not summed
|
30,367 | ||
| 2.5 |
iShares Russell 2000 Value ETF
Fund
S000004342 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
23,524 | ||
| 3 |
MAK CAPITAL ONE LLC
13G
CIK 1385702 · Registered investment adviser · Aug 24, 2026
Rule 13d-1(c), passive investor, not summed
|
1,016,047 | ||
| 3.1 |
MAK CAPITAL ONE LLC
13F
CIK 1385702 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,032,958 | ||
| 4 |
VANGUARD CAPITAL MANAGEMENT LLC
13F
CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
811,743 | ||
| 5 |
Prescott Group Capital Management, L.L.C.
13F
CIK 1166152 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
777,142 | ||
| 6 |
DIAMOND HILL CAPITAL MANAGEMENT INC
13F
CIK 1217541 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
642,533 | ||
| 6.1 |
DIAMOND HILL SMALL CAP FUND
Fund
S000003154 · Registered fund · Jun 30, 2026
Diamond Hill Funds, not summed
|
290,866 | ||
| 7 |
KENNEDY CAPITAL MANAGEMENT LLC
13F
CIK 884589 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
610,903 | ||
| 8 |
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund
S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
597,751 | ||
| 9 |
Potomac Capital Management, Inc.
13F
CIK 1418746 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
477,000 | ||
| 10 |
GEODE CAPITAL MANAGEMENT, LLC
13F
CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
455,156 | ||
| 11 |
HEARTLAND ADVISORS INC
13F
CIK 937394 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
400,000 | ||
| 11.1 |
Heartland Value Fund
Fund
S000003523 · Registered fund · Jun 30, 2026
HEARTLAND GROUP INC., not summed
|
400,000 | ||
| 12 |
|
349,744 | ||
| 12.1 |
STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO
Fund
S000050332 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
|
5,600 | ||
| 12.2 |
State Street Total Return V.I.S. Fund
Fund
S000001637 · Registered fund · Jun 30, 2026
STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed
|
300 | ||
| 13 |
CENTOFANTI LOUIS F
Insider
CIK 926738 · Nov 17, 2025
Director, EVP of Strategic Initiatives, issuer-wide
|
280,365 | ||
| 14 |
|
248,644 | ||
| 15 |
|
240,634 | ||
| 16 |
|
200,229 | ||
| 17 |
VANGUARD EXTENDED MARKET INDEX FUND
Fund
S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
194,162 | ||
| 18 |
DIMENSIONAL FUND ADVISORS LP
13F
CIK 354204 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
191,063 | ||
| 18.1 |
Dimensional U.S. Small Cap ETF
Fund
S000070906 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
|
57,280 | ||
| 18.2 |
U.S. SMALL CAP PORTFOLIO
Fund
S000000971 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
34,004 | ||
| 18.3 |
U.S. MICRO CAP PORTFOLIO
Fund
S000000948 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
19,943 | ||
| 18.4 |
U.S. CORE EQUITY 2 PORTFOLIO
Fund
S000000980 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
16,838 | ||
| 18.5 |
U.S. CORE EQUITY 1 PORTFOLIO
Fund
S000000979 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
9,203 | ||
| 19 |
GOLDMAN SACHS GROUP INC
13F
CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
162,755 | ||
| 19.1 |
Goldman Sachs Absolute Return Tracker Fund
Fund
S000020314 · Registered fund · Aug 31, 2026
GOLDMAN SACHS TRUST, not summed
|
18,393 | ||
| 20 |
SUSQUEHANNA INTERNATIONAL GROUP, LLP
13F
CIK 1446194 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
156,934 | ||
| 21 |
CITADEL ADVISORS LLC
13F
CIK 1423053 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
152,626 | ||
| 22 |
NORTHERN TRUST CORP
13F
CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
141,639 | ||
| 22.1 |
Small Cap Index Fund
Fund
S000001245 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
8,033 | ||
| 22.2 |
Small Cap Core Fund
Fund
S000001244 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
1,043 | ||
| 23 |
|
134,556 | ||
| 24 |
VANGUARD FIDUCIARY TRUST CO
13F
CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
123,040 | ||
| 25 |
GROUP ONE TRADING LLC
13F
CIK 932540 · Broker-dealer · Jun 30, 2026
carried, not yet filed for the newest quarter
|
122,611 | ||
| 26 |
VANGUARD PORTFOLIO MANAGEMENT LLC
13F
CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
121,267 | ||
| 27 |
North Star Investment Management Corp.
13F
CIK 1342857 · Investment adviser · Sep 30, 2026
|
120,532 | ||
| 28 |
North Star Micro Cap Fund
Fund
S000040440 · Registered fund · May 31, 2026
NORTHERN LIGHTS FUND TRUST II, not summed
|
116,132 | ||
| 29 |
Diametric Capital, LP
13F
CIK 1719087 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
114,714 | ||
| 30 |
MYDA Advisors LLC
13F
CIK 1589689 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
90,000 | ||
| 31 |
VANGUARD RUSSELL 2000 INDEX FUND
Fund
S000030003 · Registered fund · May 31, 2026
VANGUARD SCOTTSDALE FUNDS, not summed
|
88,308 | ||
| 32 |
CM WEALTH ADVISORS LLC
13F
CIK 1764581 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
87,839 | ||
| 33 |
ACUITAS US MICROCAP FUND
Fund
S000045890 · Registered fund · Jun 30, 2026
FORUM FUNDS II, not summed
|
83,337 | ||
| 34 |
|
69,099 | ||
| 35 |
XTX Topco Ltd
13F
CIK 1828301 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
62,888 | ||
| 36 |
Owls Nest Partners IA, LLC
13F
CIK 1845806 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
56,555 | ||
| 37 |
Pale Fire Capital SE
13F
CIK 1922318 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
55,627 | ||
| 38 |
|
54,248 | ||
| 39 |
MORGAN STANLEY
13F
CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
53,084 | ||
| 40 |
|
51,718 | ||
| 41 |
|
48,811 | ||
| 42 |
JANE STREET GROUP, LLC
13F
CIK 1595888 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
46,651 | ||
| 43 |
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F
CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
45,249 | ||
| 43.1 |
Schwab Small-Cap Index Fund
Fund
S000005912 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
42,407 | ||
| 43.2 |
Schwab Total Stock Market Index Fund
Fund
S000005913 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
5,410 | ||
| 44 |
GatePass Capital, LLC
13F
CIK 2087399 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
44,742 | ||
| 45 |
CORSAIR CAPITAL MANAGEMENT, L.P.
13F
CIK 1276470 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
42,649 | ||
| 46 |
BANK OF AMERICA CORP /DE/
13F
CIK 70858 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
41,371 | ||
| 47 |
|
41,308 | ||
| 48 |
SEI INVESTMENTS CO
13F
CIK 350894 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
41,022 | ||
| 48.1 |
SIIT EXTENDED MARKET INDEX FUND
Fund
S000035814 · Registered fund · May 31, 2026
SEI INSTITUTIONAL INVESTMENTS TRUST, not summed
|
1,100 | ||
| 49 |
Bank of New York Mellon Corp
13F
CIK 1390777 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
38,101 | ||
| 50 |
ALLIANCEBERNSTEIN L.P.
13F
CIK 1109448 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
32,850 |
8 more nested rows are not shown here; Every filing lists them all.
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.
Showing 1–50 of 170 holders
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Key facts
CIK
891532
CUSIP
714157203
13F (30d)
12 filings
12 filers
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