SEC ownership of CPS TECHNOLOGIES CORP/DE/

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000814676.

Comparable stake leader

Estate of Sharon C. Wechsler

Disclosed value leader

Wax Asset Management, LLC

Comparable rows

50/50

Latest evidence

22 May 2026

Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 3 signals
Comparable ownership rows
50 of 50
Meaning: Rows with safely comparable ownership %
Latest 13D/G holder
Estate of Sharon C. Wechsler
Source: Latest parsed Schedule 13D/G stake
Latest parsed ownership date
22 May 2026
Freshness: Most recent filing date in this holder set
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0000814676
Issuer location
Norton, MA

Ownership snapshot

Top shareholders of CPS TECHNOLOGIES CORP/DE/ (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
Estate of Sharon C. Wechsler
Disclosed value leader
Wax Asset Management, LLC
Comparable rows
50/50
Latest evidence
22 May 2026
13D/G 13F Lead comparable stake: 9.5% 13D/G row: Estate of Sharon C. Wechsler Showing 1-8 of 50 holder rows.

Quick read

Estate of Sharon C. Wechsler leads the comparable SEC ownership view at 9.5%.

50 of 50 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 Estate of Sharon C. Wechsler's linked filing trail.
Comparable ownership Top 5
Estate of Sharon C. Wechsler 9.5%
Wax Asset Management, LLC 5.5%
GLOBAL VALUE INVESTMENT CORP. 0.24%
VANGUARD CAPITAL MANAGEMENT LLC 3.2%
Round Rock Advisors LLC 2.4%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-8 of 50 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
Estate of Sharon C. Wechsler
13D/G
Sharon C. Wechsler Estate
9.5%
$3,847,001
1,373,929 shares
$0 16 Mar 2025
Wax Asset Management, LLC
13D/G
5.5%
$4,704,410
996,697 shares
-$3,677,116 31 Dec 2025
GLOBAL VALUE INVESTMENT CORP.
13D/G
Global Value Investment Corporation
0.24%
$199,567
43,290 shares
-$6,023,933 22 May 2026
VANGUARD CAPITAL MANAGEMENT LLC
13F
Company
13F
3.2%
$2,151,499
575,267 shares
31 Mar 2026
Round Rock Advisors LLC
13F
Company
13F
2.4%
$1,628,852
435,522 shares
31 Mar 2026
RENAISSANCE TECHNOLOGIES LLC
13F
Company
13F
1.4%
$931,103
248,958 shares
31 Mar 2026
MYDA Advisors LLC
13F
Company
13F
1.3%
$887,184
237,215 shares
31 Mar 2026
CIBC Bancorp USA Inc.
13F
Company
13F
1.2%
$789,230
211,024 shares
31 Mar 2026
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.

Forms 3/4/5 flow

Insider trading overview

Net insider flow leans to buying over the last 12 months. Net value: +$246,357.

Buys
$246,357
Insiders: 5
Sells
$0
Insiders: 0
Net
+$246,357
Shares: +81,906
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 81,906 Shares: 0
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 0 0 $0 $0 $0
3-6 2,315 0 $8,924 $0 +$8,924
6-9 68,666 0 $206,625 $0 +$206,625
9-12 10,925 0 $30,809 $0 +$30,809

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-10 of 10 reporting-owner rows connected to CPS TECHNOLOGIES CORP/DE/. Open a relationship link for the CIK-to-CIK filing trail.

Rows
10
Largest Forms 3/4/5 holder
Grant C. Bennett
Net 12M change
+$246,357
Latest report
28 May 2026
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
Grant C. Bennett Director $4,239,356 Mixed 21 May 2026
Francis J. Hughes Jr. Director $2,260,514 +$54,999 +2.5% Mixed 21 May 2026
Charles K. Griffith Jr. Cfo $578,322 +$12,000 +2.1% Mixed 18 May 2026
Mackey Brian T. Chief Executive Officer $491,100 +$49,500 +11% Mixed 28 May 2026
Ralph M. Norwood Director $403,154 Mixed 21 May 2026
Christopher Stuart Fraser Chief Financial Officer $258,000 Mixed 19 May 2026
Ivo James Cavoli Director $204,315 +$119,859 +142% Filing P/S 21 May 2026
Daniel C. Snow Director $120,252 +$9,999 +9.1% Mixed 21 May 2026
Thomas M. Culligan Director $107,418 Mixed 03 Jul 2024
Michael E. McCormack former CEO $98,143 Mixed 21 Jul 2023

Recent insider transactions for CPS TECHNOLOGIES CORP/DE/

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
Mackey Brian T. CPSH Common Stock Options Options Exercise 27.9% 10,181 46,681 28 May 2026 Direct
Grant C. Bennett CPSH Common Stock Option Award 15.8% 7,500 55,100 21 May 2026 Direct
Mackey Brian T. CPSH Common Stock Option Award 4.17% 10,000 250,000 21 May 2026 Direct
Ivo James Cavoli CPSH Common Stock Option Award 25% 7,500 37,500 21 May 2026 Direct
Francis J. Hughes Jr. CPSH Common Stock Option Award 6.63% 7,500 120,600 21 May 2026 Direct
Daniel C. Snow CPSH Common Stock Option Award 14.1% 7,500 60,600 21 May 2026 Direct
Ralph M. Norwood CPSH Common Stock Option Award 14.1% 7,500 60,600 21 May 2026 Direct
Christopher Stuart Fraser CPSH Common Stock Options Award 60,000 60,000 19 May 2026 Direct
Charles K. Griffith Jr. CPSH Common Stock Tax liability -10.8% -9,810 81,089 18 May 2026 Direct
Charles K. Griffith Jr. CPSH Common Stock Options Exercise 36.9% 24,500 90,899 18 May 2026 Direct
Charles K. Griffith Jr. CPSH Common Stock Option Options Exercise -44.6% -24,500 30,500 18 May 2026 Direct
Ralph M. Norwood CPSH Common Stock Tax liability -5.61% -4,178 70,341 18 May 2026 Direct
Ralph M. Norwood CPSH Common Stock Options Exercise 25.2% 15,000 74,519 18 May 2026 Direct
Ralph M. Norwood CPSH Common Stock Option Options Exercise -22% -15,000 53,100 18 May 2026 Direct
Charles K. Griffith Jr. CPSH Common Stock Tax liability -11.9% -8,970 66,399 11 May 2026 Direct
Charles K. Griffith Jr. CPSH Common Stock Options Exercise 49.6% 25,000 75,369 11 May 2026 Direct
Charles K. Griffith Jr. CPSH Common Stock Option Options Exercise -31.2% -25,000 55,000 11 May 2026 Direct
Ralph M. Norwood CPSH Common Stock Tax liability -10.8% -7,199 59,519 11 May 2026 Direct
Ralph M. Norwood CPSH Common Stock Options Exercise 42.8% 20,000 66,718 11 May 2026 Direct
Ralph M. Norwood CPSH Common Stock Option Options Exercise -22.7% -20,000 68,100 11 May 2026 Direct
Ivo James Cavoli CPSH Common Stock Purchase 4.57% $8,924 $3.86 2,315 53,000 16 Mar 2026 Direct
Francis J. Hughes Jr. CPSH Common Stock Exercise of in-the-money or at-the-money derivative security 3.42% 15,000 453,009 19 Feb 2026 Direct
Francis J. Hughes Jr. CPSH Common Stock Option Exercise of in-the-money or at-the-money derivative security -11.7% -15,000 113,100 19 Feb 2026 Direct
Charles K. Griffith Jr. CPSH Common Stock Tax liability -11.3% -6,423 50,369 12 Dec 2025 Direct
Charles K. Griffith Jr. CPSH Common Stock Options Exercise 35.9% 15,000 56,792 12 Dec 2025 Direct
Charles K. Griffith Jr. CPSH Common Stock Option Options Exercise -15.8% -15,000 80,000 12 Dec 2025 Direct
Grant C. Bennett CPSH Common Stock Gift 0.32% 4,000 1,265,554 08 Dec 2025 Direct
Ivo James Cavoli CPSH Common Stock Purchase 3.05% $5,127 $3.42 1,500 50,685 13 Nov 2025 Direct
Daniel C. Snow CPSH Common Stock Purchase 38.7% $9,999 $3.00 3,333 11,941 08 Oct 2025 Direct
Francis J. Hughes Jr. CPSH Common Stock Purchase 4.37% $54,999 $3.00 18,333 438,009 08 Oct 2025 Direct
Ivo James Cavoli CPSH Common Stock Purchase 103.4% $75,000 $3.00 25,000 49,185 08 Oct 2025 Direct
Mackey Brian T. CPSH Common Stock Purchase 82.5% $49,500 $3.00 16,500 36,500 08 Oct 2025 Direct
Charles K. Griffith Jr. CPSH Common Stock Purchase 10.6% $12,000 $3.00 4,000 41,792 08 Oct 2025 Direct
Ivo James Cavoli CPSH Common Stock Purchase 6.61% $4,551 $3.03 1,500 24,185 20 Aug 2025 Direct
I. James Cavoli CPSH Common Stock Purchase 13.9% $7,969 $2.88 2,767 22,685 11 Aug 2025 Direct
I. James Cavoli CPSH Common Stock Purchase 1.18% $664 $2.85 233 19,918 08 Aug 2025 Direct
I. James Cavoli CPSH Common Stock Purchase 48.4% $17,625 $2.74 6,425 19,685 08 Aug 2025 By Spouse
* marks a reported price that did not pass the local price check.
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