• $77.1M
    Market Cap
  • 4.89%
    1-Year Change
  • Specialty Chemicals
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
NEEDHAM INVESTMENT MANAGEMENT LLC
8.43%
800,000
+35,000 (+4.38%)
Jun 30, 2026
VANGUARD GROUP INC
4.50%
426,751
+1,900 (+0.45%)
Dec 31, 2025
VANGUARD CAPITAL MANAGEMENT LLC
4.14%
393,279
+9,463 (+2.41%)
Jun 30, 2026
BLACKROCK FUNDING, INC. /DE
4.12%
390,871
+7,271 (+1.86%)
Dec 31, 2024
RUTABAGA CAPITAL MANAGEMENT LLC/MA
4.08%
387,416
+65,817 (+16.99%)
Sep 30, 2022
N/A
4.04%
383,816
+383,816 (+100.00%)
Mar 31, 2026
BLACKROCK INC.
3.84%
364,706
+335,153 (+91.90%)
Jun 30, 2024

Current Ownership Distribution

  • Institutions62.5M (71.61%)
  • Mutual Funds23.7M (27.13%)
  • Insiders1.1M (1.26%)
  • Other0 (0.00%)

Insider Transactions

  • 1.26% (1.1M)
    Current InsiderOwnership (%, shares)
  • 0
    Number of InsiderBuying (last 12 months)
  • $0.00
    Amount of InsiderBuying (last 12 months)
  • 1
    Number of InsiderSelling (last 12 months)
  • $1.7M
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Narayan Ramani
Award
Sep 01, 2026
$0.00
15,044
$0.00
15,044
LYNCH G PATRICK
President and CEO
Award
Sep 01, 2026
$0.00
40,257
$0.00
40,257
von Falkenhausen Konstantin
Award
Sep 01, 2026
$0.00
15,044
$0.00
15,044
Pinho Cristina Lucia Duarte
Award
Sep 01, 2026
$0.00
6,188
$0.00
16,698
NIGON RICHARD
Award
Sep 01, 2026
$0.00
7,426
$0.00
54,574
Kemp Sarah E.
Award
Sep 01, 2026
$0.00
6,188
$0.00
22,458
Calderon Nancy E.
Award
Sep 01, 2026
$0.00
6,188
$0.00
20,940
LYNCH G PATRICK
President and CEO
Sell
Jul 30, 2026
$128,506.97
16,070
$8.00
105,284
LYNCH G PATRICK
President and CEO
Exempt
Jul 29, 2026
$0.00
16,072
$0.00
0
LYNCH G PATRICK
President and CEO
Exempt
Jul 29, 2026
$107,682.40
16,072
$6.70
121,356
LYNCH G PATRICK
President and CEO
Sell
Jul 29, 2026
$16.20
2
$8.10
121,354
WOLSFELD MATTHEW C
CFO and Corporate Secretary
Exempt
Jul 01, 2026
$0.00
11,879
$0.00
0
WOLSFELD MATTHEW C
CFO and Corporate Secretary
Exempt
Jul 01, 2026
$79,589.30
11,879
$6.70
180,135
WOLSFELD MATTHEW C
CFO and Corporate Secretary
In Kind
Jul 01, 2026
$79,586.92
9,169
$8.68
170,966
Calderon Nancy E.
Small
Feb 11, 2026
$20.48
2
$8.66
14,749
Calderon Nancy E.
Small
Feb 11, 2026
$21.93
3
$8.66
14,752
Calderon Nancy E.
Small
Nov 12, 2025
$20.47
3
$8.12
14,744
Calderon Nancy E.
Small
Nov 12, 2025
$21.91
3
$8.12
14,747
Pinho Cristina Lucia Duarte
Award
Sep 01, 2025
$0.00
6,739
$0.00
10,510
LYNCH G PATRICK
President and CEO
Award
Sep 01, 2025
$0.00
44,051
$0.00
44,051
Kemp Sarah E.
Award
Sep 01, 2025
$0.00
6,739
$0.00
16,270
Lee Sunggyu
Award
Sep 01, 2025
$0.00
16,287
$0.00
16,287
Narayan Ramani
Award
Sep 01, 2025
$0.00
16,287
$0.00
16,287
Calderon Nancy E.
Award
Sep 01, 2025
$0.00
6,739
$0.00
14,741
von Falkenhausen Konstantin
Award
Sep 01, 2025
$0.00
16,287
$0.00
16,287
NIGON RICHARD
Award
Sep 01, 2025
$0.00
8,086
$0.00
47,148
Calderon Nancy E.
Small
Aug 13, 2025
$20.44
3
$7.72
8,000
Calderon Nancy E.
Small
Aug 13, 2025
$21.88
3
$7.72
8,002
Calderon Nancy E.
Small
May 14, 2025
$20.41
3
$7.35
7,994
Calderon Nancy E.
Small
May 14, 2025
$21.85
3
$7.35
7,997