Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
436 institutional managers reported holding SAIA for the quarter ended Mar 31, 2026. Reported positions total over 95% of shares outstanding; the top 10 hold 54%. 75 opened new positions; 60 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| Vanguard Group | 2.50M | 9.34% | $879.6M | added +2% | ≤2013 |
| AllianceBernstein | 2.50M | 9.32% | $877.7M | added +8% | ≤2013 |
| BlackRock | 2.39M | 8.91% | $839.0M | added +2.6% | ≤2013 |
| T. Rowe Price | 2.32M | 8.66% | $814.9M | added +29% | 2014 Q2 |
| Kayne Anderson Rudnick Investment Management LLC | 986.8k | 3.68% | $346.5M | trimmed -9.5% | 2023 Q1 |
| State Street | 826.0k | 3.08% | $290.1M | added +1.8% | ≤2013 |
| Morgan Stanley | 807.7k | 3.01% | $283.6M | added +4.7% | ≤2013 |
| First Trust Advisors LP | 804.3k | 3.00% | $282.4M | added +8.6% | 2017 Q2 |
| Wasatch Advisors LP | 708.9k | 2.64% | $248.9M | trimmed -3.4% | 2022 Q3 |
| Invesco | 689.7k | 2.57% | $242.2M | trimmed -25.3% | ≤2013 |
| Capital Group (American Funds) | 555.4k | 2.07% | $195.0M | added +36.4% | 2020 Q1 |
| Geode Capital | 513.4k | 1.92% | $180.3M | added +3.1% | ≤2013 |
| Dimensional Fund Advisors | 455.0k | 1.70% | $159.8M | trimmed -4.7% | ≤2013 |
| T. Rowe Price Investment Management, INC. | 447.7k | 1.67% | $157.2M | added +171.9% | 2022 Q3 |
| Bessemer Group INC | 439.8k | 1.64% | $154.5M | trimmed -4.2% | 2020 Q2 |
| Voya Investment Management LLC | 387.5k | 1.45% | $136.1M | added +53.2% | ≤2013 |
| Neuberger Berman Group LLC | 383.4k | 1.43% | $134.6M | added +35.2% | 2021 Q3 |
| FIL LTD | 382.5k | 1.43% | $134.3M | trimmed -38.8% | 2024 Q1 |
| Janus Henderson | 322.4k | 1.20% | $113.2M | trimmed -1% | 2018 Q3 |
| Slate Path Capital LP (focused) | 308.0k | 1.15% | $108.2M | opened | 2026 Q1 |
| Holocene Advisors | 297.4k | 1.11% | $104.4M | added +913.4% | 2025 Q4 |
| Charles Schwab Investment Management | 288.8k | 1.08% | $101.4M | added +8% | ≤2013 |
| Citadel Advisors | 271.5k | 1.01% | $95.3M | added +171.9% | 2017 Q1 |
| Driehaus Capital Management LLC | 258.0k | 0.96% | $90.6M | added +76.1% | 2025 Q4 |
| FMR (Fidelity) | 255.4k | 0.95% | $89.7M | trimmed -37.5% | 2014 Q2 |
| Northern Trust | 235.9k | 0.88% | $82.8M | added +4% | ≤2013 |
| Nomura Asset Management International INC. | 227.8k | 0.85% | $80.0M | added +199.7% | 2025 Q4 |
| UBS | 200.7k | 0.75% | $70.5M | added +69.7% | ≤2013 |
| Frontier Capital Management CO LLC | 182.5k | 0.68% | $64.1M | trimmed -1.2% | 2025 Q2 |
| Millennium Management | 178.4k | 0.67% | $62.7M | added +177.4% | ≤2013 |
| Goldman Sachs | 178.4k | 0.67% | $62.6M | added +3.2% | ≤2013 |
| BNY Mellon | 171.6k | 0.64% | $60.3M | trimmed -0.9% | ≤2013 |
| William Blair Investment Management, LLC | 170.1k | 0.64% | $59.7M | opened | 2026 Q1 |
| Wells Fargo & COMPANY/MN | 168.0k | 0.63% | $59.0M | trimmed -4.2% | ≤2013 |
| Capital Research Global Investors | 162.6k | 0.61% | $57.1M | trimmed -7.6% | 2025 Q4 |
| Jacobs Levy Equity Management, INC | 157.9k | 0.59% | $55.5M | trimmed -7.2% | 2024 Q1 |
| Westfield Capital Management CO LP | 155.6k | 0.58% | $54.6M | trimmed -32% | 2020 Q3 |
| Stephens Investment Management Group LLC | 141.3k | 0.53% | $49.6M | added +11.1% | 2024 Q4 |
| Capital International Investors | 139.8k | 0.52% | $49.1M | trimmed -87.5% | 2019 Q4 |
| Jain Global LLC | 135.8k | 0.51% | $47.7M | opened | 2025 Q2 |
| Bank OF America CORP /DE/ | 119.3k | 0.45% | $41.9M | added +35.6% | ≤2013 |
| Allspring Global Investments Holdings, LLC | 118.7k | 0.44% | $41.7M | trimmed -19.2% | 2021 Q4 |
| Raymond James Financial INC | 112.2k | 0.42% | $39.4M | unchanged | 2020 Q4 |
| Balyasny Asset Management | 110.9k | 0.41% | $38.9M | trimmed -42.3% | 2021 Q1 |
| Envestnet Asset Management INC | 110.5k | 0.41% | $38.8M | added +2.4% | ≤2013 |
| AQR Capital | 108.3k | 0.40% | $38.0M | added +833.6% | 2019 Q4 |
| ZWJ Investment Counsel INC | 104.6k | 0.39% | $36.7M | added +2% | 2022 Q2 |
| Ameriprise Financial INC | 101.2k | 0.38% | $35.5M | trimmed -41% | ≤2013 |
| Life Cycle Investment Partners LTD | 94.8k | 0.35% | $33.3M | added +59.6% | 2025 Q4 |
| London CO OF Virginia | 86.8k | 0.32% | $30.5M | added +10.5% | 2025 Q1 |
Largest 50 of 436 shown; the full ranked, searchable register is at boothcheck.com/holders/SAIA. 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.