Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
180 institutional managers reported holding OBK for the quarter ended Mar 31, 2026. Together they hold about 64% of shares outstanding; the top 10 hold 37%. 28 opened new positions; 25 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| BlackRock | 2.47M | 7.92% | $102.4M | trimmed -1% | 2018 Q2 |
| Vanguard Group | 1.80M | 5.78% | $74.8M | added +2.9% | 2018 Q2 |
| Dimensional Fund Advisors | 1.43M | 4.57% | $59.1M | added +3.6% | 2019 Q1 |
| Silvercrest Asset Management Group LLC | 1.13M | 3.62% | $46.8M | added +12.9% | 2025 Q2 |
| State Street | 984.9k | 3.16% | $40.8M | added +6.7% | 2018 Q2 |
| Goldman Sachs | 886.8k | 2.84% | $36.8M | added +11.2% | 2019 Q4 |
| Royce & Associates | 847.2k | 2.71% | $35.1M | trimmed -5.8% | 2020 Q4 |
| Geode Capital | 713.7k | 2.29% | $29.6M | added +2.6% | 2018 Q2 |
| Kennedy Capital Management LLC | 703.0k | 2.25% | $29.1M | unchanged | 2018 Q2 |
| American Century Companies INC | 653.5k | 2.09% | $27.1M | trimmed -1.6% | 2018 Q4 |
| Wellington Management | 512.7k | 1.64% | $21.2M | opened | 2026 Q1 |
| Basswood Capital Management, L.l.c. | 404.0k | 1.29% | $16.7M | added +22.5% | 2024 Q4 |
| BNY Mellon | 369.4k | 1.18% | $15.3M | added +2.4% | 2018 Q2 |
| Tributary Capital Management, LLC | 356.9k | 1.14% | $14.8M | trimmed -2.9% | 2022 Q3 |
| Millennium Management | 337.2k | 1.08% | $14.0M | trimmed -30% | 2023 Q4 |
| Nuveen | 313.3k | 1.00% | $13.0M | added +13.6% | 2019 Q2 |
| Endeavour Capital Advisors INC (focused) | 303.0k | 0.97% | $12.6M | added +9.7% | 2023 Q3 |
| AQR Capital | 258.8k | 0.83% | $10.7M | added +63.5% | 2023 Q4 |
| Northern Trust | 250.8k | 0.80% | $10.4M | added +5.2% | 2018 Q2 |
| Charles Schwab Investment Management | 240.5k | 0.77% | $10.0M | trimmed -1.2% | 2018 Q2 |
| Bridgeway Capital Management, LLC | 216.7k | 0.69% | $9.0M | added +11% | 2022 Q2 |
| Two Sigma | 216.1k | 0.69% | $9.0M | added +124.8% | 2023 Q3 |
| Russell Investments Group, LTD. | 213.2k | 0.68% | $8.8M | added +15.8% | 2018 Q2 |
| Curi Capital, LLC | 201.2k | 0.65% | $8.3M | unchanged | 2022 Q3 |
| Mendon Capital Advisors CORP | 200.0k | 0.64% | $8.3M | unchanged | 2023 Q4 |
| UBS | 157.7k | 0.51% | $6.5M | added +29.8% | 2018 Q2 |
| State OF Wisconsin Investment Board | 157.3k | 0.50% | $6.5M | trimmed -4% | 2018 Q2 |
| Ameriprise Financial INC | 154.5k | 0.49% | $6.4M | trimmed -15.5% | 2023 Q4 |
| Jain Global LLC | 146.4k | 0.47% | $6.1M | added +65.3% | 2025 Q4 |
| Empowered Funds, LLC | 138.5k | 0.44% | $5.7M | added +4.9% | 2023 Q2 |
| Trexquant Investment LP | 130.2k | 0.42% | $5.4M | added +90.7% | 2023 Q4 |
| Elizabeth Park Capital Advisors, LTD. (focused) | 128.2k | 0.41% | $5.3M | added +1.6% | 2025 Q3 |
| Panagora Asset Management INC | 125.3k | 0.40% | $5.2M | added +169.9% | 2025 Q3 |
| King Luther Capital Management CORP | 123.6k | 0.40% | $5.1M | unchanged | 2018 Q2 |
| Great Lakes Advisors, LLC | 118.4k | 0.38% | $4.9M | added +15.1% | 2023 Q1 |
| Man Group | 111.9k | 0.36% | $4.6M | added +194.8% | 2025 Q1 |
| Deprince Race & Zollo INC | 108.3k | 0.35% | $4.5M | added +83.9% | 2024 Q4 |
| Morgan Stanley | 107.8k | 0.35% | $4.5M | added +2.5% | 2018 Q2 |
| Envestnet Asset Management INC | 96.5k | 0.31% | $4.0M | added +4.4% | 2022 Q3 |
| Point72 | 95.5k | 0.31% | $4.0M | added +21.5% | 2023 Q4 |
| SEI Investments CO | 91.1k | 0.29% | $3.8M | added +45.6% | 2019 Q1 |
| Creative Planning | 89.2k | 0.29% | $3.7M | added +25.6% | 2022 Q4 |
| Arrowstreet Capital | 83.6k | 0.27% | $3.5M | unchanged | 2025 Q2 |
| Hotchkis & Wiley Capital Management LLC | 76.9k | 0.25% | $3.2M | trimmed -71.8% | 2025 Q1 |
| Franklin Resources | 75.0k | 0.24% | $3.1M | added +57.9% | 2024 Q1 |
| Bank OF America CORP /DE/ | 74.5k | 0.24% | $3.1M | added +71.2% | 2018 Q2 |
| Jane Street | 65.4k | 0.21% | $2.7M | added +65.4% | 2023 Q4 |
| Swiss National Bank | 58.6k | 0.19% | $2.4M | unchanged | 2018 Q4 |
| Qube Research & Technologies LTD | 56.3k | 0.18% | $2.3M | trimmed -8.4% | 2023 Q4 |
| Voya Investment Management LLC | 54.7k | 0.17% | $2.3M | trimmed -11.8% | 2020 Q4 |
Largest 50 of 180 shown; the full ranked, searchable register is at boothcheck.com/holders/OBK. 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.