SEC ownership of ACME UNITED CORP

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000002098.

Comparable stake leader

CAPITAL MANAGEMENT CORP /VA

Disclosed value leader

Walter C. Johnsen

Comparable rows

4/50

Latest evidence

29 Oct 2026

Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 3 signals
Comparable ownership rows
4 of 50
Meaning: Rows with safely comparable ownership %
Latest 13D/G holder
CAPITAL MANAGEMENT CORP /VA
Source: Latest parsed Schedule 13D/G stake
Latest parsed ownership date
29 Oct 2026
Freshness: Most recent filing date in this holder set
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0000002098
Issuer location
Shelton, CT

Ownership snapshot

Top shareholders of ACME UNITED CORP (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
CAPITAL MANAGEMENT CORP /VA
Disclosed value leader
Walter C. Johnsen
Comparable rows
4/50
Latest evidence
29 Oct 2026
13D/G 13F 3/4/5 Lead comparable stake: 9.8% 46 rows are not safely comparable across share classes. 13D/G row: CAPITAL MANAGEMENT CORP /VA Showing 1-8 of 50 holder rows.

Quick read

CAPITAL MANAGEMENT CORP /VA leads the comparable SEC ownership view at 9.8%.

4 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 CAPITAL MANAGEMENT CORP /VA's linked filing trail.
Comparable ownership Top 4
CAPITAL MANAGEMENT CORP /VA 9.8%
Mink Brook Partners LP 9.5%
North Star Investment Management ... 6.6%
DIMENSIONAL FUND ADVISORS LP 4.6%

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
CAPITAL MANAGEMENT CORP /VA
13D/G 13F
The Capital Management Corporation · Company
9.8%
Reported 13D/G · 30 Sep 2026
$23,791,717
375,161 shares
-$7,978,277 30 Sep 2026
Mink Brook Partners LP
13D/G
Mink Brook Asset Management LLC
9.5%
Reported 13D/G · 31 Mar 2025
$14,717,619
359,932 shares
$0 31 Mar 2025
North Star Investment Management Corp.
13F 13D/G
Company · North Star Investment Management Corporation
6.6%
Reported 13D/G · 31 Dec 2025
$11,818,017
247,653 shares
— 30 Jun 2026
DIMENSIONAL FUND ADVISORS LP
13F 13D/G
Company
4.6%
Reported 13D/G · 31 Mar 2025
$8,452,845
177,131 shares
— 30 Jun 2026
Walter C. Johnsen
3/4/5
Chairman and CEO, Director, 10%+ Owner
—
mixed-class rows
$34,004,120
703,138 shares
mixed-class rows
— 29 Jul 2026
Mink Brook Asset Management LLC
13F
Company
13F
—
denominator unverified
$18,164,284
380,643 shares
— 30 Jun 2026
Brian S. Olschan
3/4/5
President and COO, Director
—
mixed-class rows
$15,463,099
214,079 shares
mixed-class rows
-$1,268,747 28 Oct 2026
Paul G. Driscoll
3/4/5
Chief Financial Officer
—
mixed-class rows
$9,792,476
215,098 shares
mixed-class rows
— 29 Jul 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 selling over the last 12 months. Net value: -$1,729,135.

Buys
$0
Insiders: 0
Sells
$1,729,135
Insiders: 4
Net
-$1,729,135
Shares: -30,896
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 0 Shares: 30,896
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 0 26,063 $0 $1,526,149 -$1,526,149
3-6 0 4,833 $0 $202,986 -$202,986
6-9 0 0 $0 $0 $0
9-12 0 0 $0 $0 $0

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-9 of 9 reporting-owner rows connected to ACME UNITED CORP. Open a relationship link for the CIK-to-CIK filing trail.

Rows
9
Largest Forms 3/4/5 holder
Walter C. Johnsen
Net 12M change
-$1.73MFull value: -$1,729,135 · USD · 12-month change
Latest report
29 Oct 2026
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
Walter C. Johnsen Chairman and CEO, Director, 10%+ Owner $34,004,120 Mixed 29 Jul 2026
Brian S. Olschan President and COO, Director $15,463,099 -$1,268,747 -7.6% Mixed 28 Oct 2026
Paul G. Driscoll Chief Financial Officer $9,792,476 Mixed 29 Jul 2026
Susan H. Murphy Director $1,820,310 Mixed 29 Oct 2026
Stevenson E. Ward III Director $1,400,569 Mixed 09 Sep 2024
Richmond Y. Holden Jr. Director $1,398,699 -$21,145 -1.5% Mixed 09 Oct 2026
Rex L. Davidson Director $1,258,600 -$208,072 -14% Mixed 05 Aug 2026
Brian Barker Director $824,600 -$231,171 -22% Mixed 13 Aug 2026
Paul J. Conway Director $325,500 Mixed 29 Jul 2026

Recent insider transactions for ACME UNITED CORP

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
Susan H. Murphy ACU Common Stock Tax liability -19.2% -2,110 8,857 29 Oct 2026 Direct
Susan H. Murphy ACU Common Stock Options Exercise 83.8% 5,000 10,967 29 Oct 2026 Direct
Susan H. Murphy ACU Employee Stock Option Options Exercise -15.9% -5,000 26,500 29 Oct 2026 Direct
Brian S. Olschan ACU Common Stock Tax liability 6.57% 3,348 54,322 28 Oct 2026 Direct
Brian S. Olschan ACU Common Stock Tax liability -38.6% -30,445 48,470 28 Oct 2026 Direct
Brian S. Olschan ACU Common Stock Options Exercise 211.3% 51,700 76,172 28 Oct 2026 Direct
Brian S. Olschan ACU Employee Stock Option Options Exercise -25% -51,700 155,000 28 Oct 2026 Direct
Richmond Y. Holden Jr. ACU Common Stock Sale -1.98% -$21,145 $62.01 -341 16,915 09 Oct 2026 Direct
Brian S. Olschan ACU Common Stock Sale -15.1% -$449,312 $61.48 -7,308 41,172 18 Aug 2026 Direct
Brian S. Olschan ACU Common Stock Tax liability -20.8% -12,692 48,480 13 Aug 2026 Direct
Brian S. Olschan ACU Common Stock Options Exercise 48.6% 20,000 61,172 13 Aug 2026 Direct
Brian S. Olschan ACU Employee Stock Option Options Exercise -8.82% -20,000 206,700 13 Aug 2026 Direct
Brian Barker ACU Common Stock Sale -100% -$231,170 $60.50 -3,821 0 13 Aug 2026 Direct
Brian S. Olschan ACU Common Stock Sale -0.82% -$19,794 $58.39 -339 41,172 12 Aug 2026 Direct
Brian Barker ACU Common Stock Tax liability -27.9% -1,479 3,821 11 Aug 2026 Direct
Brian Barker ACU Common Stock Options Exercise 307.7% 4,000 5,300 11 Aug 2026 Direct
Brian Barker ACU Employee Stock Option Options Exercise -18.6% -4,000 17,500 11 Aug 2026 Direct
Brian S. Olschan ACU Common Stock Sale -0.38% -$9,220 $57.99 -159 41,511 11 Aug 2026 Direct
Brian S. Olschan ACU Common Stock Sale -11.3% -$302,699 $57.07 -5,304 41,670 10 Aug 2026 Direct
Rex L. Davidson ACU Common Stock Sale -100% -$208,072 $56.48 -3,684 0 10 Aug 2026 Direct
Brian S. Olschan ACU Common Stock Sale -0.27% -$6,965 $55.72 -125 46,974 07 Aug 2026 Direct
Brian S. Olschan ACU Common Stock Sale -7.83% -$222,040 $55.51 -4,000 47,099 05 Aug 2026 Direct
Rex L. Davidson ACU Common Stock Tax liability -40.8% -2,544 3,684 05 Aug 2026 Direct
Rex L. Davidson ACU Common Stock Options Exercise 407.2% 5,000 6,228 05 Aug 2026 Direct
Rex L. Davidson ACU Employee Stock Option Options Exercise -15.9% -5,000 26,500 05 Aug 2026 Direct
Brian S. Olschan ACU Common Stock Sale -1.88% -$55,672 $56.75 -981 51,099 04 Aug 2026 Direct
Brian S. Olschan ACU Common Stock Sale -$58 $58.00 -1 52,080 03 Aug 2026 Direct
Walter C. Johnsen ACU Common Stock Tax liability -5.9% -20,361 324,638 29 Jul 2026 Direct
Walter C. Johnsen ACU Common Stock Options Exercise 9.52% 30,000 344,999 29 Jul 2026 Direct
Walter C. Johnsen ACU Employee Stock Option Award 7.07% 25,000 378,500 29 Jul 2026 Direct
Walter C. Johnsen ACU Employee Stock Option Options Exercise -7.82% -30,000 353,500 29 Jul 2026 Direct
Rex L. Davidson ACU Employee Stock Option Award 8.62% 2,500 31,500 29 Jul 2026 Direct
Paul J. Conway ACU Employee Stock Option Award 33.3% 2,500 10,000 29 Jul 2026 Direct
Brian Barker ACU Employee Stock Option Award 13.2% 2,500 21,500 29 Jul 2026 Direct
Richmond Y. Holden Jr. ACU Employee Stock Option Award 19.1% 2,500 15,600 29 Jul 2026 Direct
Susan H. Murphy ACU Employee Stock Option Award 8.62% 2,500 31,500 29 Jul 2026 Direct
Paul G. Driscoll ACU Common Stock Tax liability -15.8% -10,300 55,098 29 Jul 2026 Direct
Paul G. Driscoll ACU Common Stock Options Exercise 29.8% 15,000 65,398 29 Jul 2026 Direct
Paul G. Driscoll ACU Employee Stock Option Award 10.3% 15,000 160,000 29 Jul 2026 Direct
Paul G. Driscoll ACU Employee Stock Option Options Exercise -9.38% -15,000 145,000 29 Jul 2026 Direct
Brian S. Olschan ACU Employee Stock Option Award 9.68% 20,000 226,700 29 Jul 2026 Direct
Brian S. Olschan ACU Common Stock Tax liability -31.6% -24,091 52,081 24 Jul 2026 Direct
Brian S. Olschan ACU Common Stock Options Exercise 85% 35,000 76,172 24 Jul 2026 Direct
Brian S. Olschan ACU Employee Stock Option Options Exercise -14.5% -35,000 206,700 24 Jul 2026 Direct
Richmond Y. Holden Jr. ACU Common Stock Tax liability -7.95% -1,394 16,144 24 Jul 2026 Direct
Richmond Y. Holden Jr. ACU Common Stock Options Exercise 23.2% 3,400 18,044 24 Jul 2026 Direct
Richmond Y. Holden Jr. ACU Employee Stock Option Options Exercise -20.6% -3,400 13,100 24 Jul 2026 Direct
Brian S. Olschan ACU Common Stock Sale -10.5% -$202,986 $42.00 -4,833 41,172 28 May 2026 Direct
Walter C. Johnsen ACU Common Stock Gift -1.82% -5,834 314,999 27 May 2026 Direct
Brian S. Olschan ACU Common Stock Tax liability -24.8% -15,204 46,005 21 May 2026 Direct
* marks a reported price that did not pass the local price check.
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