Security key
714157203
PERMA FIX ENVIRONMENTAL SERVICES INC - Common Stock, $0.001 par value per share (PESI)
CUSIP: 714157203
Q3 2026 13F Holders as of 30 Sep 2026
- Security type / class
- Equity / Common Stock, $0.001 par value per share
- Total 13F shares
- 466
- Total 13F value
- $7,293
- Share change
- +247
- SEC-reported price per share
- $15.65
- Number of holders
- 3
- Value change
- +$3,866
- Number of buys
- 2
- Shares outstanding
- 21,167,646
Holder snapshot
5 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q3 2026
Institutions
3
Top holders
3
PESI full security history
Ownership snapshot
Full 13F holder table
PERMA FIX ENVIRONMENTAL SERVICES INC SEC filings
PERMA FIX ENVIRONMENTAL SERVICES INC company facts
Broader feeds
Reporting periods
Holder history for CUSIP 714157203
Recent filing periods:
Ownership snapshot
Top reported holders of PESI - PERMA FIX ENVIRONMENTAL SERVICES INC - Common Stock, $0.001 par value per share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Hold Alapkezelo Zrt.
Disclosed value leader
Hold Alapkezelo Zrt.
Comparable rows
15/15
Latest evidence
25 Aug 2026
13D/G
13F
3/4/5
Lead comparable stake: 11%
13D/G row: Hold Alapkezelo Zrt.
Showing 1-6 of 15 holder rows.
Quick read
Hold Alapkezelo Zrt. leads the comparable SEC ownership view at 11%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Hold Alapkezelo Zrt.'s linked filing trail.
Comparable ownership
Top 5
Hold Alapkezelo Zrt.
11%
MAK CAPITAL ONE LLC
4.8%
Louis F. Centofanti
1.3%
Mark Duff
0.64%
BlackRock, Inc.
5.9%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Hold Alapkezelo Zrt. |
13D/G
|
11%
|
$37,867,264
2,249,986 shares
|
+$21,974,493 | 25 Aug 2026 |
| MAK CAPITAL ONE LLC |
13D/G
13F
Company
|
4.8%
|
$17,100,071
1,016,047 shares
|
-$2,445,820 | 24 Aug 2026 |
| Louis F. Centofanti |
3/4/5
EVP of Strategic Initiatives, Director
|
1.3%
|
$3,905,484
280,365 shares
|
— | 17 Nov 2025 |
| Mark Duff |
3/4/5
President and CEO, Director
|
0.64%
|
$1,083,175
134,556 shares
|
— | 11 Sep 2025 |
| BlackRock, Inc. |
13F
Company
|
5.9%
|
$17,901,883
1,252,756 shares
|
— | 30 Jun 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
Company
|
3.8%
|
$11,599,807
811,743 shares
|
— | 30 Jun 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q3 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
3
Shares
466
Rows available
3
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q3 2026 vs Q2 2026 Across Filers
Q2 2026 holders
88
Q3 2026 holders
3
Holder diff
-85
| Investor | Q2 2026 Shares | Q3 2026 Shares | Share Diff | Share Chg % | Q2 2026 value | Q3 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend