Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
281 institutional managers reported holding NSIT for the quarter ended Mar 31, 2026. Reported positions total over 95% of shares outstanding; the top 10 hold 68%. 45 opened new positions; 48 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| BlackRock | 4.88M | 15.81% | $326.4M | added +1.2% | ≤2013 |
| Vanguard Group | 4.10M | 13.30% | $274.6M | added +0.9% | ≤2013 |
| Morgan Stanley | 2.99M | 9.69% | $200.0M | added +11.4% | ≤2013 |
| FMR (Fidelity) | 2.69M | 8.72% | $180.0M | trimmed -16.8% | 2017 Q4 |
| Fiduciary Management INC /WI/ | 1.88M | 6.08% | $125.5M | added +41.8% | 2020 Q1 |
| State Street | 1.19M | 3.86% | $79.7M | added +0.7% | ≤2013 |
| Paradigm Capital Management INC/NY | 955.9k | 3.10% | $64.0M | added +17.9% | ≤2013 |
| Dimensional Fund Advisors | 873.8k | 2.83% | $58.5M | trimmed -3.6% | ≤2013 |
| Geode Capital | 787.2k | 2.55% | $52.7M | added +6.1% | ≤2013 |
| Frontier Capital Management CO LLC | 505.3k | 1.64% | $33.8M | added +25.7% | ≤2013 |
| Northern Trust | 419.6k | 1.36% | $28.1M | unchanged | ≤2013 |
| Point72 | 372.0k | 1.21% | $24.9M | added +162.4% | 2025 Q4 |
| Charles Schwab Investment Management | 345.3k | 1.12% | $23.1M | added +2.3% | ≤2013 |
| Medina Value Partners, LLC (focused) | 338.2k | 1.10% | $22.6M | opened | 2026 Q1 |
| FIL LTD | 333.4k | 1.08% | $22.3M | added +234.7% | 2024 Q1 |
| D. E. Shaw | 318.4k | 1.03% | $21.3M | trimmed -2.9% | 2021 Q4 |
| Bank OF America CORP /DE/ | 316.0k | 1.02% | $21.2M | added +24.4% | ≤2013 |
| Country Trust Bank | 298.9k | 0.97% | $20.0M | added +7% | 2024 Q1 |
| Goldman Sachs | 283.4k | 0.92% | $19.0M | added +99.9% | ≤2013 |
| Allspring Global Investments Holdings, LLC | 265.6k | 0.86% | $17.8M | added +6% | 2021 Q4 |
| Invesco | 238.5k | 0.77% | $16.0M | added +6% | ≤2013 |
| MFS Investment Management | 225.8k | 0.73% | $15.1M | trimmed -61.2% | 2024 Q4 |
| Jacobs Levy Equity Management, INC | 222.1k | 0.72% | $14.9M | added +45% | 2025 Q4 |
| Boston Partners | 210.5k | 0.68% | $14.1M | opened | 2026 Q1 |
| Jane Street | 195.2k | 0.63% | $13.1M | trimmed -7.3% | 2019 Q4 |
| Renaissance Technologies | 180.6k | 0.58% | $12.1M | added +31.9% | 2025 Q4 |
| BNY Mellon | 177.8k | 0.58% | $11.9M | trimmed -2.3% | ≤2013 |
| UBS | 171.6k | 0.56% | $11.5M | added +42.8% | ≤2013 |
| Principal Financial Group INC | 150.9k | 0.49% | $10.1M | added +2.1% | ≤2013 |
| Hotchkis & Wiley Capital Management LLC | 122.5k | 0.40% | $8.2M | opened | 2026 Q1 |
| Nuveen | 121.5k | 0.39% | $8.1M | added +32.6% | 2019 Q2 |
| Barclays PLC | 115.6k | 0.38% | $7.7M | trimmed -21.4% | ≤2013 |
| Public Sector Pension Investment Board | 110.9k | 0.36% | $7.4M | added +3.4% | ≤2013 |
| Wellington Management | 107.8k | 0.35% | $7.2M | trimmed -3.2% | 2018 Q3 |
| Bridgewater Associates | 105.5k | 0.34% | $7.1M | added +38.8% | 2025 Q4 |
| Aristotle Capital Boston, LLC | 103.1k | 0.33% | $6.9M | added +2.9% | 2014 Q4 |
| WCM Investment Management | 95.1k | 0.31% | $6.4M | trimmed -33.5% | 2024 Q4 |
| AQR Capital | 91.9k | 0.30% | $6.2M | added +147.9% | ≤2013 |
| Rhumbline Advisers | 89.7k | 0.29% | $6.0M | added +2.4% | ≤2013 |
| Speece Thorson Capital Group INC (focused) | 84.4k | 0.27% | $5.7M | added +1252.3% | 2020 Q1 |
| Edgestream Partners, L.p. | 82.4k | 0.27% | $5.5M | trimmed -22% | 2023 Q2 |
| Atom Investors LP | 78.8k | 0.26% | $5.3M | opened | 2026 Q1 |
| Legal & General Group PLC | 74.6k | 0.24% | $5.0M | trimmed -6% | ≤2013 |
| Trexquant Investment LP | 65.5k | 0.21% | $4.4M | added +88.8% | 2025 Q4 |
| Winton Group | 64.9k | 0.21% | $4.3M | added +20.2% | 2025 Q4 |
| Kestrel Investment Management CORP (focused) | 63.8k | 0.21% | $4.3M | opened | 2026 Q1 |
| Bessemer Group INC | 63.3k | 0.20% | $4.2M | added +45.1% | 2023 Q2 |
| Ameriprise Financial INC | 62.1k | 0.20% | $4.2M | added +13.3% | ≤2013 |
| Russell Investments Group, LTD. | 61.7k | 0.20% | $4.1M | added +86.4% | 2016 Q4 |
| Swiss National Bank | 58.2k | 0.19% | $3.9M | trimmed -1.4% | ≤2013 |
Largest 50 of 281 shown; the full ranked, searchable register is at boothcheck.com/holders/NSIT. 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.