HDSN
Hudson Technolog (HDSN)
NASDAQ
$4.38-$0.05 (-1.24%)
Price as of Nov 13, 2026 12:45 PM EST
  • $186.5M
    Market Cap
  • -35.42%
    1-Year Change
  • Specialty Chemicals
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
HARTREE PARTNERS, LP
10.48%
4.4M
+611,889 (+13.87%)
Jun 30, 2026
WESTERLY CAPITAL MANAGEMENT, LLC
8.03%
3.4M
+205,000 (+6.07%)
Jun 30, 2026
BLACKROCK INC.
7.53%
3.2M
+91,271 (+2.88%)
Jun 30, 2024
BLACKROCK FUNDING, INC. /DE
7.51%
3.2M
-161,562 (-5.11%)
Dec 31, 2024
BLACKROCK, INC.
6.75%
2.8M
-22,267 (-0.78%)
Jun 30, 2026
VANGUARD GROUP INC
5.56%
2.3M
-34,471 (-1.47%)
Dec 31, 2025
DIMENSIONAL FUND ADVISORS LP
4.53%
1.9M
-60,139 (-3.15%)
Sep 30, 2026

Current Ownership Distribution

  • Institutions588.8M (76.78%)
  • Mutual Funds166.4M (21.71%)
  • Insiders11.6M (1.51%)
  • Other0 (0.00%)

Insider Transactions

  • 1.51% (11.6M)
    Current InsiderOwnership (%, shares)
  • 2
    Number of InsiderBuying (last 12 months)
  • $460.7M
    Amount of InsiderBuying (last 12 months)
  • 0
    Number of InsiderSelling (last 12 months)
  • $0.00
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Hartree Partners, LP
Buy
Nov 02, 2026
$175,482.50
41,290
$4.25
5.6M
Hartree Partners, LP
Buy
Oct 30, 2026
$249,505.76
58,710
$4.25
5.6M
Hartree Partners, LP
Buy
Oct 29, 2026
$888,600.00
200,000
$4.44
5.5M
Hartree Partners, LP
Buy
Sep 24, 2026
$604,445.79
118,549
$5.10
5.3M
Hartree Partners, LP
Buy
Sep 23, 2026
$56,166.30
11,013
$5.10
5.2M
Hartree Partners, LP
Buy
Sep 21, 2026
$12,757.20
2,502
$5.10
5.2M
Hartree Partners, LP
Buy
Sep 16, 2026
$56,793.60
11,136
$5.10
5.2M
Hartree Partners, LP
Buy
Sep 02, 2026
$27,116.70
5,317
$5.10
5.2M
Hartree Partners, LP
Buy
Aug 12, 2026
$28,589.00
5,198
$5.50
5.1M
Hartree Partners, LP
Buy
Jul 29, 2026
$312,102.96
52,104
$5.99
5.1M
Hartree Partners, LP
Buy
Jul 21, 2026
$285,742.30
47,708
$5.99
5.0M
Hartree Partners, LP
Buy
Jul 20, 2026
$106,859.31
17,842
$5.99
5.0M
Hartree Partners, LP
Buy
Jul 07, 2026
$3,594.00
600
$5.99
5.0M
Hartree Partners, LP
Buy
Jul 06, 2026
$27,757.66
4,634
$5.99
5.0M
Hartree Partners, LP
Buy
Jul 02, 2026
$1.6M
271,302
$5.97
5.0M
Hartree Partners, LP
Buy
Jul 01, 2026
$1.7M
288,111
$5.88
4.7M
Hartree Partners, LP
Buy
Jun 30, 2026
$1.2M
204,789
$5.68
4.4M
Mansy Loan Nguyen
Award
Jun 17, 2026
$0.00
21,186
$0.00
21,186
Parrillo Richard
Award
Jun 17, 2026
$0.00
31,780
$0.00
31,780
Proudy Eric A
Award
Jun 17, 2026
$0.00
21,186
$0.00
21,186
Mansy Loan Nguyen
Award
Jun 17, 2026
$0.00
8,881
$0.00
34,476
Sheriff Alan
Award
Jun 17, 2026
$0.00
15,360
$0.00
15,360
Proudy Eric A
Award
Jun 17, 2026
$0.00
4,440
$0.00
158,292
Sheriff Alan
Award
Jun 17, 2026
$0.00
3,219
$0.00
12,484
Houghton Kathleen
Sr. VP-Sales and Marketing
Exempt
Jan 08, 2026
$0.00
120,000
$0.00
0
Houghton Kathleen
Sr. VP-Sales and Marketing
Exempt
Jan 08, 2026
$0.00
47,619
$0.00
0
Houghton Kathleen
Sr. VP-Sales and Marketing
Exempt
Jan 08, 2026
$0.00
50,888
$0.00
0
Houghton Kathleen
Sr. VP-Sales and Marketing
Exempt
Jan 08, 2026
$90,000.00
120,000
$0.75
161,163
Houghton Kathleen
Sr. VP-Sales and Marketing
In Kind
Jan 08, 2026
$318,598.30
44,873
$7.10
116,290
Houghton Kathleen
Sr. VP-Sales and Marketing
Exempt
Jan 08, 2026
$76,190.40
47,619
$1.60
163,909