1620 INVESTMENT ADVISORS, INC.
Position in HDSN — Hudson Technologies Inc /Ny
CIK 1907281
PLYMOUTH, MA
Position in HDSN
as of Jun 30, 2026
· filed Jul 14, 2026
Position Value
$71,348
+$4,405 QoQ
Shares Held
12,430
+9.2% QoQ
Ownership
0.030%
of shares outstanding
% of Portfolio
0.07%
of 13F equity value
Holder Rank
#12
of 22 holders
Holding Since
Dec 2021
19 quarters on record
Voting authority
Sole 50%
Shared 0%
None 50%
Common Shares in HDSN Over Time
Shares Held
Position Value (USD)
Position in Specialty Chemicals
Basic Materials · as of Jun 30, 20261620 INVESTMENT ADVISORS, INC. holds $2,198,679 across 12 Specialty Chemicals names. HDSN ranks #6 (3.2% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | RPM |
Rpm International Inc/De/
|
6,608 | $734,479 | |
| 2 | DD |
DuPont de Nemours, Inc.
|
3,667 | $497,391 | |
| 3 | APD |
Air Products & Chemicals, Inc.
|
1,323 | $387,877 | |
| 4 | SOLS |
Solstice Advanced Materials Inc.
|
2,136 | $189,249 | |
| 5 | IFF |
International Flavors & Fragrances Inc
|
1,666 | $131,980 | |
| 6 | HDSN |
Hudson Technologies Inc /Ny
This page
|
12,430 | $71,348 | |
| 7 | MTX |
Minerals Technologies Inc
|
734 | $54,293 | |
| 8 | SCL |
Stepan Co
|
768 | $42,792 |
All Filings in HDSN
Export CSV
19 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $71,348 | 12,430 | Shares | Sole | 2026-07-14 | |
| 2026-03-31 | $66,943 | 11,385 | Shares | Sole | 2026-05-13 | |
| 2025-12-31 | $77,028 | 11,245 | Shares | Sole | 2026-02-05 | |
| 2025-09-30 | $114,055 | 11,486 | Shares | Sole | 2025-10-07 | |
| 2025-06-30 | $95,044 | 11,705 | Shares | Sole | 2025-08-07 | |
| 2025-03-31 | $76,174 | 12,346 | Shares | Sole | 2025-05-14 | |
| 2024-12-31 | $69,811 | 12,511 | Shares | Sole | 2025-02-11 | |
| 2024-09-30 | $103,182 | 12,372 | Shares | Sole | 2024-10-25 | |
| 2024-06-30 | $105,233 | 11,972 | Shares | Sole | 2024-07-23 | |
| 2024-03-31 | $127,980 | 11,624 | Shares | Sole | 2024-05-13 | |
| 2023-12-31 | $153,772 | 11,399 | Shares | Sole | 2024-02-09 | |
| 2023-09-30 | $162,073 | 12,186 | Shares | Sole | 2023-11-09 | |
| 2023-06-30 | $116,363 | 12,096 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $104,524 | 11,973 | Shares | Sole | 2023-05-10 | |
| 2022-12-31 | $118,636 | 11,723 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $84,819 | 11,540 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $86,778 | 11,555 | Shares | Sole | 2022-08-09 | |
| 2022-03-31 | $68,111 | 10,968 | Shares | Sole | 2022-05-16 | |
| 2021-12-31 | $48,697 | 10,968 | Shares | Sole | 2022-05-16 | |
| No filing history on record for this holder in this stock. | ||||||