Latest Period
Q1 2026
Security Snapshot
PERMA FIX ENVIRONMENTAL SERVICES INC - Common Shares (PESI) Institutional Ownership
CUSIP: 714157203
13F Institutional Holders and Ownership History from Q1 2014 to Q1 2026
Institutions Reporting
84
Shares (Excl. Options)
7,568,995
Price
$10.69
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- Type / Class
- Equity / Common Shares
- Symbol
- PESI on Nasdaq
- Shares outstanding
- 18,515,922
- Price per share
- $9.70
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 7,568,995
- Total reported value
- $80,947,347
- % of total 13F portfolios
- 0%
- Share change
- -156,134
- Value change
- -$2,267,836
- Number of holders
- 84
- Price from insider filings
- $9.70
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors
Key facts
- PESI - PERMA FIX ENVIRONMENTAL SERVICES INC - Common Shares is tracked under CUSIP 714157203.
- 84 institutions reported positions in Q1 2026.
- 1 significant owner is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 84 to 84 between Q4 2025 and Q1 2026.
- Reported value moved from $99,237,170 to $80,947,347.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC Evidence
Latest holder context comes from 84 institutions filings for Q1 2026.
Security key
714157203
Latest holder period
Q1 2026
13F holders
84
13D/G owners
1
CIK / CUSIP context first
Open Q1 2026 holders
PESI full holder history
PERMA FIX ENVIRONMENTAL SERVICES INC SEC filings
PERMA FIX ENVIRONMENTAL SERVICES INC company facts
PERMA FIX ENVIRONMENTAL SERVICES INC insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 714157203:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
1
Security
PESI
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| HOLD Alapkezelo Zrt. | 5.1% | $12,672,667 | 944,312 | HOLD Alapkezelo Zrt. | 31 Mar 2026 |
As of 31 Mar 2026, 84 institutional investors reported holding 7,568,995 shares of PERMA FIX ENVIRONMENTAL SERVICES INC - Common Shares (PESI). This represents 41% of the company’s total 18,515,922 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
38%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 6.3% | 1,170,303 | -2.3% | 0% | $12,510,539 |
| MAK CAPITAL ONE LLC | 5% | 918,673 | 0% | 1.6% | $9,820,614 |
| Prescott Group Capital Management, L.L.C. | 4.2% | 777,142 | 0% | 0.83% | $8,307,648 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4.1% | 759,435 | 0% | 0% | $8,118,360 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.3% | 432,701 | +2.3% | 0% | $4,626,994 |
| HEARTLAND ADVISORS INC | 2.2% | 400,000 | 0% | 0.22% | $4,276,000 |
| DIAMOND HILL CAPITAL MANAGEMENT INC | 1.9% | 355,978 | -8% | 0.02% | $3,805,405 |
| STATE STREET CORP | 1.8% | 335,547 | +7.5% | 0% | $3,586,997 |
| Potomac Capital Management, Inc. | 1.6% | 296,700 | -13% | 2.8% | $3,171,723 |
| GROUP ONE TRADING LLC | 1.3% | 247,674 | +6050% | 0.09% | $2,647,635 |
| DIMENSIONAL FUND ADVISORS LP | 0.88% | 163,787 | -0.61% | 0% | $1,750,465 |
| GOLDMAN SACHS GROUP INC | 0.77% | 142,687 | +98% | 0% | $1,525,324 |
| NORTHERN TRUST CORP | 0.7% | 129,568 | +4.9% | 0% | $1,385,082 |
| North Star Investment Management Corp. | 0.65% | 120,532 | +2639% | 0.08% | $1,288,487 |
| MYDA Advisors LLC | 0.65% | 120,000 | +20% | 0.3% | $1,282,800 |
| VANGUARD FIDUCIARY TRUST CO | 0.64% | 119,253 | 0% | 0% | $1,274,815 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 0.54% | 100,318 | 0% | 0% | $1,072,399 |
| CITADEL ADVISORS LLC | 0.37% | 69,313 | +92% | 0% | $740,956 |
| D. E. Shaw & Co., Inc. | 0.34% | 62,989 | -34% | 0% | $673,352 |
| UBS Group AG | 0.34% | 62,082 | +114% | 0% | $663,657 |
| Squarepoint Ops LLC | 0.28% | 51,940 | +41% | 0% | $555,239 |
| Pale Fire Capital SE | 0.26% | 48,626 | +13% | 0.05% | $519,812 |
| BANK OF AMERICA CORP /DE/ | 0.24% | 45,190 | +3.5% | 0% | $483,081 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.24% | 43,590 | -10% | 0% | $465,977 |
| Bank of New York Mellon Corp | 0.22% | 40,379 | -8.4% | 0% | $431,647 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
49
Latest
Q1 2026
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 7,568,995 | $80,947,347 | -$2,267,836 | $10.69 | 84 |
| 2025 Q4 | 7,876,466 | $99,237,170 | +$2,837,591 | $12.59 | 84 |
| 2025 Q3 | 7,420,583 | $75,014,874 | +$7,603,495 | $10.10 | 76 |
| 2025 Q2 | 6,691,336 | $70,394,269 | +$756,228 | $10.52 | 69 |
| 2025 Q1 | 6,667,505 | $48,473,520 | -$7,285,662 | $7.27 | 73 |
| 2024 Q4 | 7,369,619 | $81,581,927 | +$16,623,671 | $11.07 | 72 |
| 2024 Q3 | 5,776,549 | $71,171,783 | +$9,947,481 | $12.27 | 65 |
| 2024 Q2 | 4,817,296 | $48,798,859 | +$16,967,378 | $10.13 | 57 |
| 2024 Q1 | 3,103,687 | $36,902,768 | -$795,328 | $11.89 | 39 |
| 2023 Q4 | 3,489,166 | $27,424,623 | +$688,951 | $7.86 | 42 |
| 2023 Q3 | 3,347,901 | $34,983,351 | +$635,132 | $10.45 | 43 |
| 2023 Q2 | 3,261,925 | $35,815,855 | -$2,967,523 | $10.98 | 35 |
| 2023 Q1 | 3,528,811 | $41,568,323 | +$1,379,458 | $11.78 | 31 |
| 2022 Q4 | 3,580,560 | $12,641,713 | -$747,112 | $3.53 | 29 |
| 2022 Q3 | 3,792,329 | $16,989,000 | -$73,480 | $4.48 | 26 |
| 2022 Q2 | 3,795,688 | $19,698,000 | +$226,593 | $5.19 | 27 |
| 2022 Q1 | 3,751,593 | $20,746,000 | +$1,443,901 | $5.53 | 27 |
| 2021 Q4 | 3,485,599 | $22,062,000 | +$446,817 | $6.33 | 26 |
| 2021 Q3 | 3,209,497 | $21,344,000 | +$163,464 | $6.65 | 21 |
| 2021 Q2 | 3,184,433 | $22,768,000 | -$483,424 | $7.15 | 23 |
| 2021 Q1 | 3,251,492 | $23,841,000 | +$459,871 | $7.33 | 21 |
| 2020 Q4 | 3,195,829 | $19,078,000 | +$538,860 | $5.97 | 22 |
| 2020 Q3 | 3,072,479 | $21,658,967 | -$245,723 | $7.05 | 22 |
| 2020 Q2 | 3,109,024 | $19,860,556 | +$76,190 | $6.39 | 23 |
| 2020 Q1 | 3,121,204 | $16,258,084 | +$440,862 | $5.21 | 21 |
| 2019 Q4 | 3,027,166 | $27,538,753 | +$1,265,723 | $9.10 | 21 |
| 2019 Q3 | 2,907,169 | $13,191,626 | +$328,454 | $4.54 | 21 |
| 2019 Q2 | 2,836,180 | $11,082,429 | +$88,843 | $3.91 | 21 |
| 2019 Q1 | 2,815,781 | $9,871,669 | +$83,871 | $3.51 | 22 |
| 2018 Q4 | 2,793,322 | $6,557,358 | -$254,329 | $2.35 | 20 |
| 2018 Q3 | 2,893,337 | $12,133,676 | -$78,217 | $4.20 | 23 |
| 2018 Q2 | 2,911,985 | $13,097,510 | +$186,120 | $4.50 | 21 |
| 2018 Q1 | 2,872,180 | $11,906,537 | +$94,183 | $4.15 | 22 |
| 2017 Q4 | 2,852,970 | $10,394,147 | +$103,526 | $3.65 | 23 |
| 2017 Q3 | 2,825,092 | $10,724,564 | -$835,976 | $3.80 | 20 |
| 2017 Q2 | 3,046,098 | $11,115,877 | +$84,299 | $3.65 | 20 |
| 2017 Q1 | 3,026,583 | $9,516,387 | +$1,260,678 | $3.15 | 22 |
| 2016 Q4 | 3,002,128 | $11,693,622 | +$685,975 | $3.90 | 22 |
| 2016 Q3 | 2,823,182 | $14,125,922 | +$18,514 | $5.01 | 20 |
| 2016 Q2 | 2,820,992 | $14,353,767 | -$756,233 | $5.09 | 20 |
| 2016 Q1 | 3,003,753 | $11,102,096 | +$432,780 | $3.70 | 20 |
| 2015 Q4 | 3,032,973 | $11,409,000 | -$120,923 | $3.72 | 21 |
| 2015 Q3 | 2,914,529 | $11,766,000 | -$120,657 | $4.03 | 18 |
| 2015 Q2 | 2,946,299 | $11,216,050 | +$841,640 | $3.81 | 20 |
| 2015 Q1 | 2,725,457 | $10,525,400 | +$256,973 | $3.88 | 20 |
| 2014 Q4 | 2,640,317 | $11,462,750 | -$1,006,445 | $4.35 | 19 |
| 2014 Q3 | 2,878,263 | $10,974,100 | +$139,027 | $3.82 | 19 |
| 2014 Q2 | 2,842,542 | $13,051,143 | +$209,208 | $4.60 | 15 |
| 2014 Q1 | 2,799,777 | $13,586,522 | +$213,909 | $4.88 | 16 |