Security key
444144109
HUDSON TECHNOLOGIES INC /NY - Common Stock (HDSN)
CUSIP: 444144109
Q4 2021 13F Holders as of 31 Dec 2021
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 22,322,359
- Total 13F value
- $99,105,146
- Share change
- +1,660,887
- Put/Call ratio
- 14%
- SEC-reported price per share
- $4.44
- Number of holders
- 64
- Value change
- +$7,517,506
- Number of buys
- 32
- Number of sells
- 30
- Shares outstanding
- 41,870,511
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q4 2021
Institutions
64
Top holders
10
HDSN full security history
Ownership snapshot
Full 13F holder table
HUDSON TECHNOLOGIES INC /NY SEC filings
HUDSON TECHNOLOGIES INC /NY company facts
Broader feeds
Ownership snapshot
Top reported holders of HDSN - HUDSON TECHNOLOGIES INC /NY - Common Stock (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
COOPER CREEK PARTNERS MAN...
Disclosed value leader
COOPER CREEK PARTNERS MAN...
Comparable rows
15/15
Latest evidence
30 Sep 2021
13F
Lead comparable stake: 9.7%
Showing 1-6 of 15 holder rows.
Quick read
COOPER CREEK PARTNERS MANAGEMENT LLC leads the comparable SEC ownership view at 9.7%.
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 COOPER CREEK PARTNERS MANAGEMENT LLC's linked filing trail.
Comparable ownership
Top 5
COOPER CREEK PARTNERS MANAGEMENT LLC
9.7%
ArrowMark Colorado Holdings LLC
7.9%
Granahan Investment Management, LLC
4.7%
RK Capital Management, LLC
3.6%
VANGUARD GROUP INC
3.6%
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 |
|---|---|---|---|---|---|
| COOPER CREEK PARTNERS MANAGEMENT LLC |
13F
Company
|
9.7%
|
$14,339,000
4,062,005 shares
|
— | 30 Sep 2021 |
| ArrowMark Colorado Holdings LLC |
13F
Company
|
7.9%
|
$11,650,000
3,300,268 shares
|
— | 30 Sep 2021 |
| Granahan Investment Management, LLC |
13F
Company
|
4.7%
|
$6,973,000
1,975,220 shares
|
— | 30 Sep 2021 |
| RK Capital Management, LLC |
13F
Company
|
3.6%
|
$5,370,000
1,521,300 shares
|
— | 30 Sep 2021 |
| VANGUARD GROUP INC |
13F
Company
|
3.6%
|
$5,370,000
1,520,987 shares
|
— | 30 Sep 2021 |
| BlackRock Finance, Inc. |
13F
Company
|
1.6%
|
$2,429,000
688,029 shares
|
— | 30 Sep 2021 |
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 Q4 2021
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
64
Shares
22,322,359
Rows available
64
| 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 Q4 2021 vs Q3 2021 Across Filers
Q3 2021 holders
59
Q4 2021 holders
64
Holder diff
5
| Investor | Q3 2021 Shares | Q4 2021 Shares | Share Diff | Share Chg % | Q3 2021 value | Q4 2021 value | Value change | Value Chg % |
|---|