Comparable stake leader
BlackRock, Inc.
SEC ownership of COHU INC
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000021535.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
31 Mar 2026
- Public ticker
- COHU on Nasdaq
- Parsed ownership sources
-
13F and 13D/G
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
BlackRock, Inc.
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 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
-
31 Mar 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0000021535
- Issuer location
- Poway, CA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of COHU 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
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
31 Mar 2026
13F
13D/G
Lead comparable stake: 15%
13D/G row: BlackRock, Inc.
Showing 1-8 of 50 holder rows.
Quick read
BlackRock, Inc. leads the comparable SEC ownership view at 15%.
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 BlackRock, Inc.'s linked filing trail.
Comparable ownership
Top 5
BlackRock, Inc.
15%
THRIVENT FINANCIAL FOR LUTHERANS
5.6%
VICTORY CAPITAL MANAGEMENT INC
4.9%
DIMENSIONAL FUND ADVISORS LP
4%
VANGUARD PORTFOLIO MANAGEMENT LLC
4.3%
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
|
15%
from 13D/G
|
$223,871,565
7,311,286 shares
|
— | 31 Mar 2026 |
| THRIVENT FINANCIAL FOR LUTHERANS |
13D/G
13F
Company
|
5.6%
|
$44,145,167
2,615,235 shares
|
$0 | 31 Dec 2024 |
| VICTORY CAPITAL MANAGEMENT INC |
13D/G
13F
Company
|
4.9%
|
$77,049,192
2,334,824 shares
|
-$20,006,250 | 31 Mar 2026 |
| DIMENSIONAL FUND ADVISORS LP |
13F
13D/G
Company
|
4%
from 13D/G
|
$47,991,094
1,567,511 shares
|
— | 31 Mar 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13F
Company
|
4.3%
|
$62,418,166
2,038,477 shares
|
— | 31 Mar 2026 |
| ROYCE & ASSOCIATES LP |
13F
Company
|
4.3%
|
$62,088,695
2,027,717 shares
|
— | 31 Mar 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
Company
|
4.1%
|
$60,250,209
1,967,675 shares
|
— | 31 Mar 2026 |
| STATE STREET CORP |
13F
Company
|
3.8%
|
$55,922,408
1,826,336 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 selling over the last 12 months. Net value: -$4,711,878.
Buys
$0
Insiders: 0
Sells
$4,711,878
Insiders: 6
Net
-$4,711,878
Shares: -104,773
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 104,773
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 90,668 | $0 | $4,267,936 | -$4,267,936 |
| 3-6 | 0 | 14,105 | $0 | $443,942 | -$443,942 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-15 of 15 reporting-owner rows connected to COHU INC. Open a relationship link for the CIK-to-CIK filing trail.
Rows
15
Largest Forms 3/4/5 holder
Luis A. Muller
Net 12M change
-$4,711,878
Latest report
15 Jul 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Luis A. Muller | President & CEO | $64,053,898 | -$2,105,079 | -3.2% | Mixed | 22 May 2026 |
| Jeffrey D. Jones | Sr. VP Finance & CFO | $38,328,005 | -$608,920 | -1.6% | Mixed | 15 Jul 2026 |
| Christopher Bohrson | Sr VP & Chief Customer Officer | $20,855,382 | -$342,440 | -1.6% | Filing P/S | 15 Jul 2026 |
| James A. Donahue | Director | $12,113,426 | -$479,720 | -3.8% | Mixed | 22 May 2026 |
| Klaus Ilgenfritz | Sr. VP & Chief Product Officer | $4,700,021 | Mixed | 14 Mar 2026 | ||
| Steven J. Bilodeau | Director | $4,104,284 | -$807,169 | -16% | Mixed | 20 May 2026 |
| Thomas D. Kampfer | Sr. VP Corp Dev, GC & Sec | $3,350,676 | Mixed | 15 May 2024 | ||
| Ian P. Lawee | Sr. VP & GM | $1,744,022 | Mixed | 31 Aug 2023 | ||
| Nina L. Richardson | Director | $1,663,848 | Mixed | 15 May 2026 | ||
| Andrew M. Caggia | Director | $1,619,087 | Mixed | 26 Jun 2026 | ||
| William Bendush | Director | $1,217,569 | -$368,550 | -23% | Mixed | 15 May 2026 |
| Yon Jorden | Director | $629,537 | Mixed | 15 May 2026 | ||
| Andreas W. Mattes | Director | $352,542 | Mixed | 15 May 2026 | ||
| Lynne J. Camp | Director | $244,379 | Mixed | 05 May 2021 | ||
| Karen Marie Rapp | Director | $156,597 | Mixed | 15 May 2026 |
Recent insider transactions for COHU 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 D. Jones | COHU | Common Stock (Indirect) | Other | 190,590 | 190,590 | 15 Jul 2026 | By Jones Trust Dated April 3, 2023 | |||
| Jeffrey D. Jones | COHU | Restricted Stock Units | Other | -55.4% | -190,590 | 153,202 | 15 Jul 2026 | Direct | ||
| Christopher Bohrson | COHU | Common Stock | Sale | -0.58% | $57,920 | $57.92 | -1,000 | 170,702 | 15 Jul 2026 | Direct |
| Andrew M. Caggia | COHU | Restricted Stock Units | Award | 0.37% | 294 | 80,030 | 26 Jun 2026 | Direct | ||
| Christopher Bohrson | COHU | Restricted Stock Units | Sale | -0.58% | $63,880 | $63.88 | -1,000 | 171,702 | 15 Jun 2026 | Direct |
| Jeffrey D. Jones | COHU | Common Stock | Sale | -3.64% | $608,920 | $46.84 | -13,000 | 343,792 | 22 May 2026 | Direct |
| Luis A. Muller | COHU | Common Stock | Sale | -4.64% | $2,105,079 | $46.62 | -45,154 | 927,619 | 22 May 2026 | Direct |
| James A. Donahue | COHU | Common Stock | Sale | -74.1% | $479,720 | $46.77 | -10,257 | 3,578 | 22 May 2026 | Direct |
| Steven J. Bilodeau | COHU | Common Stock | Sale | -16.4% | $460,026 | $44.85 | -10,257 | 52,272 | 20 May 2026 | Direct |
| William Bendush | COHU | Restricted Stock Units | Award | 3,578 | 3,578 | 15 May 2026 | Direct | |||
| William Bendush | COHU | Common Stock (Indirect) | Other | 41.4% | 10,257 | 35,037 | 15 May 2026 | By Bendush Living Trust | ||
| James A. Donahue | COHU | Restricted Stock Units | Award | 34.9% | 3,578 | 13,835 | 15 May 2026 | Direct | ||
| Steven J. Bilodeau | COHU | Restricted Stock Units | Award | 6.07% | 3,578 | 62,529 | 15 May 2026 | Direct | ||
| Andrew M. Caggia | COHU | Restricted Stock Units | Award | 4.7% | 3,578 | 79,736 | 15 May 2026 | Direct | ||
| Yon Jorden | COHU | Restricted Stock Units | Award | 11.3% | 3,578 | 35,226 | 15 May 2026 | Direct | ||
| Andreas W. Mattes | COHU | Restricted Stock Units | Award | 16.1% | 3,578 | 25,814 | 15 May 2026 | Direct | ||
| Nina Richardson | COHU | Restricted Stock Units | Award | 9.28% | 3,578 | 42,148 | 15 May 2026 | Direct | ||
| Karen Marie Rapp | COHU | Restricted Stock Units | Award | 23% | 3,578 | 19,156 | 15 May 2026 | Direct | ||
| Christopher Bohrson | COHU | Common Stock | Sale | -0.58% | $46,920 | $46.92 | -1,000 | 172,702 | 15 May 2026 | Direct |
| William Bendush | COHU | Common Stock (Indirect) | Sale | -23.2% | $368,550 | $49.14 | -7,500 | 24,780 | 13 May 2026 | By Bendush Living Trust |
| Christopher Bohrson | COHU | Restricted Stock Units | Sale | -0.86% | $76,920 | $51.28 | -1,500 | 173,702 | 11 May 2026 | Direct |
| Christopher Bohrson | COHU | Restricted Stock Units | Sale | -0.57% | $38,000 | $38.00 | -1,000 | 175,202 | 15 Apr 2026 | Direct |
| Andrew M. Caggia | COHU | Restricted Stock Units | Award | 0.79% | 594 | 76,158 | 27 Mar 2026 | Direct | ||
| Christopher Bohrson | COHU | Common Stock | Sale | -0.56% | $28,570 | $28.57 | -1,000 | 176,202 | 16 Mar 2026 | Direct |
| Jeffrey D. Jones | COHU | Performance Stock Units | Other | -5.75% | -21,782 | 356,792 | 14 Mar 2026 | Direct | ||
| Jeffrey D. Jones | COHU | Common Stock | Tax liability | -1.16% | -4,447 | 378,574 | 14 Mar 2026 | Direct | ||
| Klaus Ilgenfritz | COHU | Performance Stock Units | Other | -7.48% | -7,425 | 91,791 | 14 Mar 2026 | Direct | ||
| Klaus Ilgenfritz | COHU | Common Stock | Tax liability | -1.09% | -1,098 | 99,216 | 14 Mar 2026 | Direct | ||
| Christopher Bohrson | COHU | Performance Stock Units | Other | -8.52% | -16,501 | 177,202 | 14 Mar 2026 | Direct | ||
| Christopher Bohrson | COHU | Common Stock | Tax liability | -1.59% | -3,131 | 193,703 | 14 Mar 2026 | Direct | ||
| Luis A. Muller | COHU | Performance Stock Units | Other | -6.35% | -66,006 | 972,773 | 14 Mar 2026 | Direct | ||
| Luis A. Muller | COHU | Common Stock | Tax liability | -1.26% | -13,271 | 1,038,779 | 14 Mar 2026 | Direct | ||
| Christopher Bohrson | COHU | Common Stock | Tax liability | -1.14% | -2,273 | 196,834 | 12 Mar 2026 | Direct | ||
| Klaus Ilgenfritz | COHU | Common Stock | Tax liability | -0.99% | -998 | 100,314 | 12 Mar 2026 | Direct | ||
| Jeffrey D. Jones | COHU | Restricted Stock Units | Tax liability | -0.78% | -3,000 | 383,021 | 12 Mar 2026 | Direct | ||
| Luis A. Muller | COHU | Restricted Stock Units | Tax liability | -0.83% | -8,851 | 1,052,050 | 12 Mar 2026 | Direct | ||
| Luis A. Muller | COHU | Common Stock | Tax liability | -1.61% | -17,376 | 1,060,901 | 11 Mar 2026 | Direct | ||
| Jeffrey D. Jones | COHU | Common Stock | Tax liability | -1.42% | -5,576 | 386,021 | 11 Mar 2026 | Direct | ||
| Klaus Ilgenfritz | COHU | Common Stock Units | Tax liability | -2.15% | -2,225 | 101,312 | 11 Mar 2026 | Direct | ||
| Christopher Bohrson | COHU | Common Stock | Tax liability | -2.01% | -4,088 | 199,107 | 11 Mar 2026 | Direct | ||
| Luis A. Muller | COHU | Restricted Stock Units | Award | 10% | 98,071 | 1,078,277 | 10 Mar 2026 | Direct | ||
| Luis A. Muller | COHU | Performance Stock Units | Award | 11.1% | 98,071 | 980,206 | 10 Mar 2026 | Direct | ||
| Jeffrey D. Jones | COHU | Restricted Stock Units | Award | 7.4% | 26,969 | 391,597 | 10 Mar 2026 | Direct | ||
| Jeffrey D. Jones | COHU | Performance Stock Units | Award | 7.99% | 26,969 | 364,628 | 10 Mar 2026 | Direct | ||
| Klaus Ilgenfritz | COHU | Restricted Stock Units | Award | 14.4% | 13,076 | 103,537 | 10 Mar 2026 | Direct | ||
| Klaus Ilgenfritz | COHU | Performance Stock Units | Award | 16.9% | 13,076 | 90,461 | 10 Mar 2026 | Direct | ||
| Christopher Bohrson | COHU | Restricted Stock Units | Award | 9.71% | 17,979 | 203,195 | 10 Mar 2026 | Direct | ||
| Christopher Bohrson | COHU | Performance Stock Units | Award | 10.8% | 17,979 | 185,216 | 10 Mar 2026 | Direct | ||
| Christopher Bohrson | COHU | Common Stock | Sale | -0.59% | $30,230 | $30.23 | -1,000 | 167,237 | 20 Feb 2026 | Direct |
| Steven J. Bilodeau | COHU | Common Stock | Sale | -15.8% | $347,142 | $31.26 | -11,105 | 58,951 | 20 Feb 2026 | Direct |
* marks a reported price that did not pass the local price check.