Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
252 institutional managers reported holding COHU for the quarter ended Mar 31, 2026. Reported positions total over 95% of shares outstanding; the top 10 hold 53%. 41 opened new positions; 36 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| BlackRock | 7.31M | 15.56% | $224.0M | added +2.7% | ≤2013 |
| Vanguard Group | 4.40M | 9.35% | $134.7M | unchanged | ≤2013 |
| Victory Capital Management INC | 2.31M | 4.91% | $70.7M | trimmed -6.7% | 2016 Q1 |
| Royce & Associates | 2.03M | 4.32% | $62.1M | added +5.7% | ≤2013 |
| State Street | 1.83M | 3.89% | $55.9M | unchanged | ≤2013 |
| Barrow Hanley Mewhinney & Strauss LLC | 1.78M | 3.79% | $54.5M | trimmed -5.9% | 2025 Q2 |
| Dimensional Fund Advisors | 1.57M | 3.33% | $48.0M | trimmed -15.2% | ≤2013 |
| Systematic Financial Management LP | 1.40M | 2.98% | $42.9M | trimmed -9.1% | 2014 Q1 |
| Frontier Capital Management CO LLC | 1.29M | 2.75% | $39.7M | trimmed -7.5% | 2024 Q2 |
| Geode Capital | 1.18M | 2.50% | $36.1M | added +5.4% | ≤2013 |
| Two Sigma | 1.09M | 2.33% | $33.5M | added +102% | 2022 Q4 |
| Goldman Sachs | 1.05M | 2.24% | $32.3M | added +106.2% | ≤2013 |
| Franklin Resources | 1.02M | 2.17% | $31.3M | added +455.3% | 2025 Q3 |
| Morgan Stanley | 952.1k | 2.03% | $29.2M | added +10.7% | ≤2013 |
| BNY Mellon | 865.6k | 1.84% | $26.5M | trimmed -1.4% | ≤2013 |
| Charles Schwab Investment Management | 802.4k | 1.71% | $24.6M | unchanged | ≤2013 |
| Emerald Advisers, LLC | 780.1k | 1.66% | $23.9M | opened | 2026 Q1 |
| Millennium Management | 688.0k | 1.46% | $21.1M | added +196.4% | 2022 Q4 |
| Tributary Capital Management, LLC | 687.2k | 1.46% | $21.1M | trimmed -2.3% | 2024 Q2 |
| Leeward Investments, LLC - MA | 646.1k | 1.38% | $19.8M | added +4% | 2024 Q4 |
| Paradigm Capital Management INC/NY | 623.9k | 1.33% | $19.1M | trimmed -31.8% | 2018 Q3 |
| D. E. Shaw | 545.0k | 1.16% | $16.7M | unchanged | 2022 Q3 |
| Driehaus Capital Management LLC | 538.5k | 1.15% | $16.5M | opened | 2026 Q1 |
| Bank OF America CORP /DE/ | 517.2k | 1.10% | $15.8M | added +2.2% | ≤2013 |
| Northern Trust | 494.7k | 1.05% | $15.2M | added +5% | ≤2013 |
| Emerald Mutual Fund Advisers Trust | 489.9k | 1.04% | $15.0M | opened | 2026 Q1 |
| First Eagle Investment Management | 474.1k | 1.01% | $14.5M | added +91.4% | 2025 Q2 |
| UBS | 429.8k | 0.91% | $13.2M | added +86.8% | ≤2013 |
| Citigroup INC | 360.9k | 0.77% | $11.1M | trimmed -19.2% | ≤2013 |
| Connor, Clark & Lunn Investment Management LTD. | 343.7k | 0.73% | $10.5M | added +33.6% | 2025 Q2 |
| Focus Partners Wealth | 322.6k | 0.69% | $9.9M | added +1.2% | 2025 Q4 |
| AQR Capital | 311.9k | 0.66% | $9.6M | added +83% | 2020 Q4 |
| Toronto Dominion Bank | 307.6k | 0.65% | $9.4M | trimmed -16.3% | 2025 Q4 |
| SG Capital Management LLC | 290.9k | 0.62% | $8.9M | trimmed -79.6% | 2025 Q4 |
| Meros Investment Management, LP | 276.0k | 0.59% | $8.5M | trimmed -22.4% | 2024 Q3 |
| Algert Global LLC | 275.1k | 0.58% | $8.4M | opened | 2026 Q1 |
| CSM Advisors, LLC | 274.1k | 0.58% | $8.4M | trimmed -7.9% | 2025 Q2 |
| Mizuho Markets Americas LLC | 272.1k | 0.58% | $8.3M | trimmed -10.1% | 2025 Q3 |
| BNP Paribas Financial Markets | 266.8k | 0.57% | $8.2M | added +559.4% | 2014 Q2 |
| Davenport & CO LLC | 261.2k | 0.56% | $8.0M | opened | 2026 Q1 |
| Bank OF Nova Scotia | 258.2k | 0.55% | $7.9M | trimmed -31.9% | 2025 Q4 |
| SEI Investments CO | 251.1k | 0.53% | $7.7M | added +93% | 2020 Q4 |
| Invesco | 249.7k | 0.53% | $7.6M | added +9% | ≤2013 |
| Trexquant Investment LP | 230.1k | 0.49% | $7.0M | added +237.2% | 2025 Q2 |
| Principal Financial Group INC | 226.9k | 0.48% | $7.0M | added +2% | ≤2013 |
| Acadian Asset Management | 219.9k | 0.47% | $6.7M | added +193.4% | 2025 Q3 |
| Man Group | 218.1k | 0.46% | $6.7M | added +81.2% | 2025 Q2 |
| Dean Investment Associates, LLC | 214.3k | 0.46% | $6.6M | trimmed -0.5% | 2024 Q2 |
| Stanley-Laman Group, LTD. | 209.0k | 0.45% | $6.4M | added +6.9% | 2025 Q3 |
| Citadel Advisors | 207.6k | 0.44% | $6.4M | trimmed -41.1% | 2019 Q1 |
Largest 50 of 252 shown; the full ranked, searchable register is at boothcheck.com/holders/COHU. Related filers are grouped using the filings' own included-manager declarations. Historically, several managers opening new positions in the same quarter said almost nothing about the quarter that followed (59,118 cases since 2013). A filed record, not a forecast. Nothing here is investment advice.