Comparable stake leader
Emancipation Management LLC
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000806172.
Comparable stake leader
Emancipation Management LLC
Disclosed value leader
Emancipation Management LLC
Comparable rows
30/45
Latest evidence
01 May 2026
Ownership snapshot
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.
Quick read
30 of 45 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.
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Emancipation Management LLC |
13D/G
|
35%
|
$20,191,872
5,472,052 shares
|
$0 | 31 Dec 2024 |
| Dawn Cupero |
13D/G
|
5.9%
|
$3,410,626
924,289 shares
|
$0 | 25 Nov 2024 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
Company
|
2.3%
|
$1,466,695
361,255 shares
|
— | 31 Mar 2026 |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO |
13F
Company
|
1%
|
$650,420
160,202 shares
|
— | 31 Mar 2026 |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
Company
|
0.86%
|
$552,322
136,007 shares
|
— | 31 Mar 2026 |
| RENAISSANCE TECHNOLOGIES LLC |
13F
Company
|
0.57%
|
$361,746
89,100 shares
|
— | 31 Mar 2026 |
| M&T BANK CORP |
13F
Company
|
0.51%
|
$324,800
80,000 shares
|
— | 31 Mar 2026 |
| VANGUARD FIDUCIARY TRUST CO |
13F
Company
|
0.42%
|
$271,224
66,804 shares
|
— | 31 Mar 2026 |
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.
Forms 3/4/5 flow
Net insider flow leans to selling over the last 12 months. Net value: -$97,083.
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 2,400 | 0 | $9,888 | $0 | +$9,888 |
| 6-9 | 0 | 16,632 | $0 | $78,969 | -$78,969 |
| 9-12 | 0 | 7,892 | $0 | $28,002 | -$28,002 |
Reporting owners
Showing 1-15 of 15 reporting-owner rows connected to SONO TEK CORP. Open a relationship link for the CIK-to-CIK filing trail.
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Christopher L. Coccio | Director | $1,803,417 | -$78,969 | -4.2% | Mixed | 23 Oct 2025 |
| R. Stephen Harshbarger | Ceo | $1,360,641 | Mixed | 21 Aug 2025 | ||
| Donald F. Mowbray | Director | $516,221 | Mixed | 26 Feb 2024 | ||
| Robb William Engle | Officer | $388,351 | Mixed | 30 Jan 2024 | ||
| Christopher Cichetti | Officer | $259,229 | Mixed | 21 Aug 2025 | ||
| Stephen James Bagley | Cfo | $240,183 | -$20,762 | -8% | Mixed | 22 Aug 2025 |
| Philip A. Strasburg | Director | $166,207 | -$7,240 | -4.2% | Mixed | 21 Jul 2025 |
| Eric Haskell | Director | $114,975 | Mixed | 21 Aug 2025 | ||
| Kuha Maria T. | Officer | $90,337 | Mixed | 21 Aug 2025 | ||
| Joseph Riemer | Director | $88,975 | Mixed | 21 Aug 2025 | ||
| Carol A. O'Donnell | Director | $82,475 | Mixed | 21 Aug 2025 | ||
| Bennett Bruntil | Officer | $60,134 | Mixed | 17 Feb 2022 | ||
| Lawal Adeniyi | Director | $50,028 | +$9,888 | +25% | Mixed | 05 Mar 2026 |
| Kirk M. Warshaw | Director | $26,678 | Mixed | 21 Aug 2025 | ||
| Brian Lewis Booth | Vice President | $6,536 | Median | 01 May 2026 |
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Brian Lewis Booth | SOTK | Sono-Tek Corp Common Stock | Options Exercise | -67.2% | -3,299 | 1,610 | 01 May 2026 | Direct | ||
| Brian Lewis Booth | SOTK | Sono-Tek Corp Common Stock | Options Exercise | 651.8% | 4,256 | 4,909 | 01 May 2026 | Direct | ||
| Brian Lewis Booth | SOTK | Sono-Tek Corp Options | Options Exercise | 0 | 10,503 | 01 May 2026 | Direct | |||
| Lawal Adeniyi | SOTK | Common Stock | Purchase | $9,888 | $4.12 | 2,400 | 2,400 | 05 Mar 2026 | Direct | |
| Lawal Adeniyi | SOTK | Sono-Tek Options | Disposed to Issuer | -19.4% | -2,400 | 9,951 | 05 Mar 2026 | Direct | ||
| Christopher L. Coccio | SOTK | Common Stock | Sale | -3.83% | $58,893 | $4.78 | -12,320 | 309,447 | 23 Oct 2025 | Direct |
| Christopher L. Coccio | SOTK | Common Stock | Sale | -1.32% | $20,075 | $4.66 | -4,312 | 321,767 | 21 Oct 2025 | Direct |
| Lawal Adeniyi | SOTK | Sono-Tek Options | Award | 131.6% | 7,018 | 12,351 | 21 Aug 2025 | Direct | ||
| Eric Haskell | SOTK | Sono-Tek Options | Award | 24.8% | 7,018 | 35,377 | 21 Aug 2025 | Direct | ||
| Joseph Riemer | SOTK | Sono-Tek Options | Award | 34.5% | 7,018 | 27,377 | 21 Aug 2025 | Direct | ||
| Carol A. O'Donnell | SOTK | Sono-Tek Options | Award | 38.2% | 7,018 | 25,377 | 21 Aug 2025 | Direct | ||
| Kirk M. Warshaw | SOTK | Sono-Tek Options | Award | 7,018 | 7,018 | 21 Aug 2025 | Direct | |||
| Stephen James Bagley | SOTK | Sono-Tek Options | Award | 46% | 12,195 | 38,700 | 21 Aug 2025 | Direct | ||
| Christopher L. Coccio | SOTK | Sono-Tek Options | Award | 41.5% | 29,240 | 99,744 | 21 Aug 2025 | Direct | ||
| Kuha Maria T. | SOTK | Sono-Tek Options | Award | 78.2% | 12,195 | 27,796 | 21 Aug 2025 | Direct | ||
| Christopher Cichetti | SOTK | Sono-Tek Options | Award | 38% | 21,951 | 79,763 | 21 Aug 2025 | Direct | ||
| R. Stephen Harshbarger | SOTK | Sono-Tek Options | Award | 54.3% | 29,268 | 83,184 | 21 Aug 2025 | Direct | ||
| Stephen J. Bagley | SOTK | Sono-Tek Common Stock | Sale | -0.87% | $999 | $3.34 | -299 | 34,254 | 19 Aug 2025 | Direct |
| Stephen J. Bagley | SOTK | Sono-tek Corp Common Stock | Sale | -0.86% | $1,005 | $3.34 | -301 | 34,848 | 18 Aug 2025 | Direct |
| Stephen J. Bagley | SOTK | Sono-Tek Common Stock | Sale | -3.61% | $4,342 | $3.36 | -1,293 | 34,553 | 18 Aug 2025 | Direct |
| Stephen J. Bagley | SOTK | Sono-Tek Corp Common Stock | Sale | -0.96% | $1,166 | $3.33 | -350 | 36,147 | 07 Aug 2025 | Direct |
| Stephen J. Bagley | SOTK | Sono-Tek Corp Common Stock | Sale | $3.61 | $3.61 | -1 | 36,497 | 23 Jul 2025 | Direct | |
| Stephen J. Bagley | SOTK | Sono-Tek Corp Common Stock | Sale | -1.41% | $1,881 | $3.61 | -521 | 36,498 | 22 Jul 2025 | Direct |
| Philip A. Strasburg | SOTK | Sono-Tek Corp Common Stock | Sale | -6.64% | $7,240 | $3.62 | -2,000 | 28,118 | 21 Jul 2025 | Direct |
| Stephen J. Bagley | SOTK | Sono-Tek Corp Common Stock | Sale | -5.55% | $7,913 | $3.64 | -2,174 | 37,019 | 21 Jul 2025 | Direct |
| Stephen J. Bagley | SOTK | Sono-Tek Corp Common Stock | Sale | -0.78% | $1,119 | $3.61 | -310 | 39,193 | 17 Jul 2025 | Direct |
| Stephen J. Bagley | SOTK | Sono-Tek Corp Common Stock | Sale | -1.6% | $2,334 | $3.63 | -643 | 39,503 | 16 Jul 2025 | Direct |