SEC ownership of TWIN DISC INC

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000100378.

Comparable stake leader

BlackRock, Inc.

Disclosed value leader

GAMCO INVESTORS, INC. ET AL

Comparable rows

2/50

Latest evidence

04 Sep 2026

Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 3 signals
Comparable ownership rows
2 of 50
Meaning: Rows with safely comparable ownership %
Latest 13D/G holder
BlackRock, Inc.
Source: Latest parsed Schedule 13D/G stake
Latest parsed ownership date
04 Sep 2026
Freshness: Most recent filing date in this holder set
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0000100378
Issuer location
Racine, WI

Ownership snapshot

Top shareholders of TWIN DISC INC (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
BlackRock, Inc.
Disclosed value leader
GAMCO INVESTORS, INC. ET AL
Comparable rows
2/50
Latest evidence
04 Sep 2026
13F 13D/G 3/4/5 Lead comparable stake: 5.1% 48 rows are not safely comparable across share classes. 13D/G row: BlackRock, Inc. Showing 1-8 of 50 holder rows.

Quick read

BlackRock, Inc. leads the comparable SEC ownership view at 5.1%.

2 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 BlackRock, Inc.'s linked filing trail.
Comparable ownership Top 2
BlackRock, Inc. 5.1%
Leviticus Partners LP 4.5%

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
BlackRock, Inc.
13F 13D/G
Company
5.1%
Reported 13D/G · 30 Jun 2026
$17,238,993
743,060 shares
— 30 Jun 2026
Leviticus Partners LP
13D/G
4.5%
Reported 13D/G · 13 Feb 2025
$4,325,322
632,357 shares
-$556,290 13 Feb 2025
John H. Batten
3/4/5
President and CEO, Director, 10%+ Owner
—
mixed-class rows
$14,607,164
660,093 shares
mixed-class rows
— 05 Aug 2026
GAMCO INVESTORS, INC. ET AL
13F
Company
13F
—
denominator unverified
$37,814,515
1,629,936 shares
— 30 Jun 2026
Juniper Investment Company, LLC
13F
Company
13F
—
denominator unverified
$23,778,933
1,024,954 shares
— 30 Jun 2026
DIMENSIONAL FUND ADVISORS LP
13F
Company
13F
—
denominator unverified
$14,093,072
607,438 shares
— 30 Jun 2026
VANGUARD CAPITAL MANAGEMENT LLC
13F
Company
13F
—
denominator unverified
$12,779,766
550,852 shares
— 30 Jun 2026
Pacific Ridge Capital Partners, LLC
13F
Company
13F
—
denominator unverified
$12,214,522
526,488 shares
— 30 Jun 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: -$417,606.

Buys
$0
Insiders: 0
Sells
$417,606
Insiders: 1
Net
-$417,606
Shares: -17,686
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 0 Shares: 17,686
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 0 17,686 $0 $417,606 -$417,606
3-6 0 0 $0 $0 $0
6-9 0 0 $0 $0 $0
9-12 0 0 $0 $0 $0

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-11 of 11 reporting-owner rows connected to TWIN DISC INC. Open a relationship link for the CIK-to-CIK filing trail.

Rows
11
Largest Forms 3/4/5 holder
John H. Batten
Net 12M change
-$417.61KFull value: -$417,606 · USD · 12-month change
Latest report
04 Sep 2026
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
John H. Batten President and CEO, Director, 10%+ Owner $14,607,164 Mixed 05 Aug 2026
Jeffrey S. Knutson VP Finance, CFO, Secr & Trea $3,998,606 -$417,606 -9.5% Filing P/S 04 Sep 2026
Michael Doar Director $3,024,421 Mixed 03 Aug 2026
David W. Johnson Director $1,746,496 Mixed 03 Aug 2026
David B. Rayburn Director $1,258,183 Mixed 28 Oct 2021
Michael C. Smiley Director $1,111,846 Mixed 30 Oct 2025
Harold M. Stratton II Director $942,645 Mixed 01 Aug 2022
Janet Plaut Giesselman Director $936,068 Mixed 10 Feb 2026
James E. Feiertag President, COO $618,462 Mixed 02 Aug 2021
Juliann Larimer Director $425,529 Mixed 30 Oct 2025
Kevin M. Olsen Director $387,731 Mixed 30 Oct 2025

Recent insider transactions for TWIN DISC INC

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
Jeffrey S. Knutson TWIN Common Stock Sale -4.34% -$181,438 $24.25 -7,482 164,891 08 Sep 2026 Direct
Jeffrey S. Knutson TWIN Common Stock Sale -3.31% -$137,222 $23.25 -5,902 172,373 04 Sep 2026 Direct
Jeffrey S. Knutson TWIN COMMON STOCK Sale -2.36% -$98,946 $23.00 -4,302 178,275 03 Sep 2026 Direct
John H. Batten TWIN COMMON STOCK Award 22.1% 97,449 538,648 05 Aug 2026 Direct
John H. Batten TWIN COMMON STOCK Tax liability -10.2% -52,465 459,955 05 Aug 2026 Direct
Jeffrey S. Knutson TWIN COMMON STOCK Award 32.8% 47,372 192,001 05 Aug 2026 Direct
Jeffrey S. Knutson TWIN COMMON STOCK Tax liability -14.4% -25,758 153,363 05 Aug 2026 Direct
Michael Doar TWIN COMMON STOCK Award 0.27% 357 130,363 03 Aug 2026 Direct
David W. Johnson TWIN COMMON STOCK Award 0.24% 179 75,280 03 Aug 2026 Direct
Jeffrey S. Knutson TWIN Common Stock Award -4.19% -7,044 160,922 05 Jun 2026 Direct
David W. Johnson TWIN COMMON STOCK Award 0.32% 237 75,101 01 May 2026 Direct
Michael Doar TWIN COMMON STOCK Award 0.37% 475 130,006 01 May 2026 Direct
Jeffrey S. Knutson TWIN COMMON STOCK Award -1.87% -3,198 167,966 05 Mar 2026 Direct
John H. Batten TWIN COMMON STOCK Award -3.05% -5,040 160,019 04 Mar 2026 As Trustee
John H. Batten TWIN COMMON STOCK Award -3.51% -6,000 165,059 27 Feb 2026 As Trustee
John H. Batten TWIN COMMON STOCK Award -0.31% -535 171,059 26 Feb 2026 As Trustee
Jeffrey S. Knutson TWIN COMMON STOCK Award -0.29% -499 171,164 25 Feb 2026 Direct
John H. Batten TWIN COMMON STOCK Award -1.66% -2,901 171,594 25 Feb 2026 As Trustee
John H. Batten TWIN Common Stock Award -1.44% -2,543 174,495 18 Feb 2026 As Trustee
John H. Batten TWIN Common Stock Award -0.13% -600 475,434 18 Feb 2026 Direct
John H. Batten TWIN Common Stock Award -5.38% -10,000 176,038 17 Feb 2026 As Trustee
John H. Batten TWIN Common Stock Award -1.04% -5,000 476,034 17 Feb 2026 Direct
John H. Batten TWIN COMMON STOCK Award -1.61% -3,000 183,519 12 Feb 2026 As Trustee
John H. Batten TWIN COMMON STOCK Award -0.31% -1,500 483,934 12 Feb 2026 Direct
John H. Batten TWIN COMMON STOCK Award -9.76% -20,000 185,019 11 Feb 2026 As Trustee
John H. Batten TWIN COMMON STOCK Award -2.02% -10,000 485,434 11 Feb 2026 Direct
Jeffrey S. Knutson TWIN COMMON STOCK Award -2.34% -4,108 171,664 11 Feb 2026 Direct
Janet Plaut Giesselman TWIN COMMON STOCK Award -17.4% -10,876 51,735 10 Feb 2026 Direct
Michael Doar TWIN COMMON STOCK Award 0.73% 935 129,531 02 Feb 2026 Direct
David W. Johnson TWIN COMMON STOCK Award 0.31% 234 74,864 02 Feb 2026 Direct
John H. Batten TWIN COMMON STOCK Award -0.02% -107 495,434 09 Dec 2025 Direct
John H. Batten TWIN COMMON STOCK Award -0.36% -1,782 495,541 08 Dec 2025 Direct
John H. Batten TWIN COMMON STOCK Award -0.24% -1,190 497,323 05 Dec 2025 Direct
Jeffrey S. Knutson TWIN COMMON STOCK Award -2.04% -3,663 175,772 05 Dec 2025 Direct
John H. Batten TWIN COMMON STOCK Award -1.79% -9,102 498,513 12 Nov 2025 Direct
John H. Batten TWIN COMMON STOCK Award -3.79% -20,000 507,615 11 Nov 2025 Direct
Jeffrey S. Knutson TWIN COMMON STOCK Award -1.57% -2,853 179,435 10 Nov 2025 Direct
John H. Batten TWIN COMMON STOCK Award -3.65% -20,000 527,615 10 Nov 2025 Direct
Michael Doar TWIN COMMON STOCK Award 0.85% 1,087 128,596 01 Nov 2025 Direct
David W. Johnson TWIN COMMON STOCK Award 0.37% 272 74,630 01 Nov 2025 Direct
Janet Plaut Giesselman TWIN COMMON STOCK Award 9.4% 5,378 62,611 30 Oct 2025 Direct
Juliann Larimer TWIN COMMON STOCK Award 23.2% 5,378 28,607 30 Oct 2025 Direct
Kevin M. Olsen TWIN COMMON STOCK Award 26% 5,378 26,066 30 Oct 2025 Direct
Michael C. Smiley TWIN COMMON STOCK Award 7.75% 5,378 74,746 30 Oct 2025 Direct
Michael Doar TWIN COMMON STOCK Award 4.4% 5,378 127,509 30 Oct 2025 Direct
David W. Johnson TWIN COMMON STOCK Award 7.8% 5,378 74,358 30 Oct 2025 Direct
* marks a reported price that did not pass the local price check.
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