Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
315 institutional managers reported holding SPSC for the quarter ended Mar 31, 2026. Reported positions total over 95% of shares outstanding; the top 10 hold 54%. 51 opened new positions; 97 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| BlackRock | 5.83M | 15.57% | $324.2M | added +1.9% | ≤2013 |
| Vanguard Group | 4.99M | 13.32% | $277.5M | added +1.1% | ≤2013 |
| Neuberger Berman Group LLC | 1.79M | 4.78% | $99.6M | added +26.5% | 2020 Q1 |
| State Street | 1.50M | 4.01% | $83.4M | added +2.1% | ≤2013 |
| Goldman Sachs | 1.07M | 2.86% | $59.5M | added +61.6% | 2015 Q1 |
| BNP Paribas Financial Markets | 1.01M | 2.69% | $56.0M | added +2.2% | 2014 Q2 |
| Bank OF America CORP /DE/ | 998.6k | 2.67% | $55.6M | added +3.3% | ≤2013 |
| Geode Capital | 998.0k | 2.67% | $55.5M | added +2.7% | ≤2013 |
| Morgan Stanley | 960.9k | 2.57% | $53.5M | added +10.2% | ≤2013 |
| Pacer Advisors, INC. | 926.4k | 2.47% | $51.5M | added +240.3% | 2021 Q2 |
| Citadel Advisors | 913.2k | 2.44% | $50.8M | added +247.2% | 2016 Q1 |
| Disciplined Growth Investors INC /MN | 810.9k | 2.17% | $45.1M | trimmed -4% | 2016 Q1 |
| Federated Hermes, INC. | 738.9k | 1.97% | $41.1M | added +201.6% | 2017 Q4 |
| Van Berkom & Associates INC. | 678.2k | 1.81% | $37.7M | added +9.9% | 2025 Q3 |
| Irenic Capital Management LP (focused) | 597.7k | 1.60% | $33.3M | added +32.2% | 2025 Q4 |
| Anson Funds Management LP | 575.0k | 1.54% | $32.0M | opened | 2026 Q1 |
| Nordea Investment Management AB | 537.9k | 1.44% | $29.9M | trimmed -55.8% | 2025 Q1 |
| Dimensional Fund Advisors | 504.3k | 1.35% | $28.1M | added +17.2% | 2018 Q3 |
| Charles Schwab Investment Management | 500.8k | 1.34% | $27.9M | added +2.5% | ≤2013 |
| D. E. Shaw | 490.8k | 1.31% | $27.3M | added +8.5% | ≤2013 |
| Walleye Capital LLC | 457.6k | 1.22% | $25.5M | added +1749.1% | 2025 Q2 |
| Northern Trust | 441.7k | 1.18% | $24.6M | trimmed -2.3% | ≤2013 |
| Lightrock Netherlands B.v. (focused) | 441.7k | 1.18% | $24.6M | added +432.8% | 2025 Q4 |
| Riverbridge Partners LLC | 407.4k | 1.09% | $22.7M | trimmed -15.3% | ≤2013 |
| Nomura Asset Management International INC. | 361.1k | 0.96% | $20.1M | trimmed -57.5% | 2025 Q4 |
| Arrowstreet Capital | 354.5k | 0.95% | $19.7M | added +13031% | 2018 Q2 |
| Janus Henderson | 304.5k | 0.81% | $16.9M | added +94.7% | 2019 Q1 |
| BNY Mellon | 288.8k | 0.77% | $16.1M | added +5.2% | ≤2013 |
| Public Sector Pension Investment Board | 278.0k | 0.74% | $15.5M | added +1.6% | 2016 Q3 |
| Nuveen | 269.0k | 0.72% | $15.0M | unchanged | 2019 Q2 |
| Invenomic Capital Management LP | 264.1k | 0.70% | $14.7M | opened | 2026 Q1 |
| Principal Financial Group INC | 263.6k | 0.70% | $14.7M | added +16.3% | 2016 Q3 |
| Qube Research & Technologies LTD | 251.9k | 0.67% | $14.0M | added +979.4% | 2024 Q1 |
| Voloridge Investment Management | 251.7k | 0.67% | $14.0M | trimmed -12.2% | 2024 Q2 |
| T. Rowe Price | 219.4k | 0.59% | $12.2M | added +2.7% | ≤2013 |
| Healthcare OF Ontario Pension Plan Trust Fund | 217.3k | 0.58% | $12.1M | added +92% | 2023 Q1 |
| Assenagon Asset Management S.a. | 211.4k | 0.56% | $11.8M | added +471.6% | 2024 Q1 |
| FIL LTD | 205.4k | 0.55% | $11.4M | trimmed -12.8% | 2020 Q1 |
| UBS | 199.6k | 0.53% | $11.1M | trimmed -85.7% | ≤2013 |
| Barclays PLC | 198.0k | 0.53% | $11.0M | trimmed -23.7% | ≤2013 |
| Fenimore Asset Management INC | 197.0k | 0.53% | $11.0M | added +19.5% | 2020 Q1 |
| Local Pensions Partnership Investment LTD (focused) | 185.5k | 0.49% | $10.3M | unchanged | 2024 Q4 |
| Congress Asset Management CO | 174.8k | 0.47% | $9.7M | added +3.5% | 2019 Q1 |
| Glenmede Trust CO NA | 169.2k | 0.45% | $9.4M | added +31.5% | 2013 Q3 |
| Royal Bank OF Canada | 166.7k | 0.45% | $9.3M | trimmed -20.5% | ≤2013 |
| Lazard Asset Management LLC | 158.4k | 0.42% | $8.8M | trimmed -24.1% | 2019 Q3 |
| CPP Investment Board | 158.2k | 0.42% | $8.8M | added +77.8% | 2024 Q2 |
| Invesco | 152.8k | 0.41% | $8.5M | added +14.8% | ≤2013 |
| Bessemer Group INC | 119.6k | 0.32% | $6.7M | added +21.8% | 2021 Q3 |
| AQR Capital | 115.0k | 0.31% | $6.4M | added +102.2% | 2017 Q2 |
Largest 50 of 315 shown; the full ranked, searchable register is at boothcheck.com/holders/SPSC. 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.