Latest Period
Q2 2026
Security Snapshot
HUDSON TECHNOLOGIES INC /NY - Common Stock (HDSN) Institutional Ownership
CUSIP: 444144109
13F Institutional Holders and Ownership History from Q1 2014 to Q2 2026
Institutions Reporting
50
Shares (Excl. Options)
5,674,691
Price
$5.74
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- Security type / class
- Equity / Common Stock
- Symbol
- HDSN on Nasdaq
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 5,674,691
- Total 13F value
- $32,582,800
- Portfolio coverage rank
- 0%
- Share change
- -207,764
- Value change
- -$1,261,249
- Number of holders
- 50
- Shares outstanding
- 41,870,511
- SEC-reported price per share
- $6.02
- Insider filing price
- $6.02
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- HDSN - HUDSON TECHNOLOGIES INC /NY - Common Stock is tracked under CUSIP 444144109.
- 50 institutions reported positions in Q2 2026.
- 2 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 160 to 50 between Q1 2026 and Q2 2026.
- SEC-reported value moved from $193,620,546 to $32,582,800.
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 50 institutions filings for Q2 2026.
Security key
444144109
Latest holder period
Q2 2026
13F holders
50
13D/G owners
2
CIK / CUSIP context first
Open Q2 2026 holders
HDSN full holder history
HUDSON TECHNOLOGIES INC /NY SEC filings
HUDSON TECHNOLOGIES INC /NY company facts
HUDSON TECHNOLOGIES INC /NY insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 444144109:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
2
Security
HDSN
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Hartree Partners, LP | 12% | +31% | $27,093,596 | +$6,383,596 | 4,971,302 | +31% | Hartree Partners, LP | 30 Jun 2026 |
| DIMENSIONAL FUND ADVISORS LP | 4.7% | -8% | $11,295,630 | -$1,035,461 | 1,967,914 | -8.4% | Dimensional Fund Advisors LP | 30 Jun 2026 |
As of 30 Jun 2026, 50 institutional investors reported holding 5,674,691 shares of HUDSON TECHNOLOGIES INC /NY - Common Stock (HDSN). This represents 14% of the company’s total 41,870,511 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
13%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 6.8% | 2,840,272 | -0.78% | 0% | $16,303,161 |
| STATE STREET CORP | 2.1% | 895,776 | -0.23% | 0% | $5,141,754 |
| Russell Investments Group, Ltd. | 0.87% | 362,489 | +135% | 0% | $2,080,683 |
| KBC Group NV | 0.5% | 207,466 | +69% | 0% | $1,191,000 |
| Bank of New York Mellon Corp | 0.49% | 204,779 | -27% | 0% | $1,175,432 |
| KESTREL INVESTMENT MANAGEMENT CORP | 0.48% | 200,750 | 0% | 0.63% | $1,152,305 |
| MARATHON CAPITAL MANAGEMENT | 0.41% | 173,325 | -0.57% | 0.2% | $994,886 |
| WEDGE CAPITAL MANAGEMENT L L P/NC | 0.33% | 137,618 | -4.9% | 0.01% | $789,927 |
| PINNACLE ASSOCIATES LTD | 0.17% | 70,000 | 0% | 0% | $401,800 |
| DEUTSCHE BANK AG\ | 0.15% | 61,117 | +4.9% | 0% | $350,812 |
| ISTHMUS PARTNERS, LLC | 0.14% | 57,456 | +32% | 0.03% | $329,797 |
| BAILARD, INC. | 0.14% | 56,574 | 0.01% | $324,735 | |
| EXCHANGE TRADED CONCEPTS, LLC | 0.11% | 46,108 | +17% | 0% | $264,660 |
| COMMONWEALTH EQUITY SERVICES, LLC | 0.1% | 42,504 | +10% | 0% | $243,970 |
| Campbell & CO Investment Adviser LLC | 0.08% | 32,995 | -46% | 0.01% | $189,391 |
| Park Capital Management, LLC / WI | 0.06% | 27,078 | 0.09% | $155,428 | |
| FIFTH THIRD BANCORP | 0.06% | 24,585 | -19% | 0% | $141,118 |
| CITIGROUP INC | 0.05% | 18,883 | +957% | 0% | $108,389 |
| Boston Partners | 0.04% | 18,221 | -54% | 0% | $104,590 |
| Symmetry Partners, LLC | 0.04% | 18,033 | 0.01% | $103,509 | |
| Commonwealth Financial Services, LLC | 0.04% | 16,728 | 0.01% | $96,019 | |
| Fifth Third Wealth Advisors LLC | 0.04% | 16,445 | 0% | $94,394 | |
| Quadrature Capital Ltd | 0.04% | 16,395 | -21% | 0% | $94,107 |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC | 0.04% | 15,133 | -5.4% | 0% | $97,608 |
| HUB Investment Partners, LLC | 0.04% | 14,918 | 0% | $85,629 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
50
Latest
Q2 2026
Rows shown
1-25 of 50
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q2 | 5,674,691 | $32,582,800 | -$1,261,249 | $5.74 | 50 |
| 2026 Q1 | 32,926,022 | $193,620,546 | -$750,515 | $5.88 | 160 |
| 2025 Q4 | 32,978,611 | $226,419,148 | -$7,830,042 | $6.85 | 167 |
| 2025 Q3 | 33,289,262 | $330,436,912 | +$2,930,047 | $9.93 | 169 |
| 2025 Q2 | 33,386,741 | $271,102,559 | +$17,244,448 | $8.12 | 148 |
| 2025 Q1 | 31,547,556 | $194,780,723 | +$9,817,038 | $6.17 | 160 |
| 2024 Q4 | 30,331,793 | $169,600,332 | -$12,169,893 | $5.58 | 168 |
| 2024 Q3 | 30,810,520 | $256,779,695 | -$8,864,193 | $8.34 | 171 |
| 2024 Q2 | 31,738,325 | $278,980,715 | -$9,568,179 | $8.79 | 159 |
| 2024 Q1 | 31,441,748 | $346,171,265 | +$6,974,457 | $11.01 | 166 |
| 2023 Q4 | 30,952,856 | $417,524,721 | +$18,164,543 | $13.49 | 144 |
| 2023 Q3 | 29,618,399 | $393,957,523 | +$13,018,643 | $13.30 | 143 |
| 2023 Q2 | 28,909,459 | $278,109,488 | +$10,462,748 | $9.62 | 132 |
| 2023 Q1 | 27,958,359 | $244,021,884 | +$1,006,498 | $8.73 | 137 |
| 2022 Q4 | 28,038,283 | $283,731,486 | -$3,066,577 | $10.12 | 141 |
| 2022 Q3 | 28,557,028 | $209,894,435 | -$1,233,313 | $7.35 | 130 |
| 2022 Q2 | 28,806,235 | $216,337,819 | +$27,891,788 | $7.51 | 109 |
| 2022 Q1 | 25,345,793 | $157,392,239 | +$19,722,541 | $6.21 | 76 |
| 2021 Q4 | 22,322,359 | $99,105,146 | +$7,517,506 | $4.44 | 64 |
| 2021 Q3 | 18,490,004 | $65,332,247 | +$6,330,092 | $3.53 | 59 |
| 2021 Q2 | 16,730,700 | $56,888,332 | +$7,893,631 | $3.40 | 50 |
| 2021 Q1 | 14,847,707 | $23,906,086 | -$66,964 | $1.61 | 34 |
| 2020 Q4 | 14,958,207 | $16,306,761 | -$890,248 | $1.09 | 33 |
| 2020 Q3 | 15,772,302 | $18,134,803 | +$187,649 | $1.15 | 30 |
| 2020 Q2 | 15,612,649 | $15,772,705 | -$963,167 | $1.01 | 31 |