Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
734 institutional managers reported holding TOST for the quarter ended Mar 31, 2026. Together they hold about 71% of shares outstanding; the top 10 hold 34%. 99 opened new positions; 151 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| Vanguard Group | 46.06M | 7.65% | $1.22B | added +3% | 2021 Q3 |
| FMR (Fidelity) | 31.73M | 5.27% | $841.4M | added +6.5% | 2021 Q3 |
| Capital International Investors | 30.60M | 5.08% | $811.4M | trimmed -32.6% | 2021 Q3 |
| BlackRock | 27.16M | 4.51% | $720.3M | added +1% | 2021 Q3 |
| AllianceBernstein | 18.17M | 3.02% | $481.9M | added +94.8% | 2021 Q3 |
| ValueAct (focused) | 12.90M | 2.14% | $341.9M | added +60.9% | 2024 Q4 |
| Morgan Stanley | 11.66M | 1.94% | $309.1M | added +12.4% | 2021 Q3 |
| State Street | 10.15M | 1.69% | $269.1M | added +3.3% | 2021 Q4 |
| Geode Capital | 8.99M | 1.49% | $238.2M | added +3.6% | 2021 Q4 |
| UBS | 8.43M | 1.40% | $223.4M | added +38.1% | 2021 Q3 |
| Principal Financial Group INC | 7.99M | 1.33% | $211.8M | added +36% | 2022 Q2 |
| Sumitomo Mitsui Trust Group, INC. | 6.86M | 1.14% | $181.9M | trimmed -2.5% | 2021 Q4 |
| BNP Paribas Financial Markets | 6.73M | 1.12% | $178.4M | added +8.5% | 2024 Q4 |
| XN LP (focused) | 6.51M | 1.08% | $172.6M | trimmed -27.6% | 2023 Q4 |
| Bank OF America CORP /DE/ | 4.87M | 0.81% | $129.0M | added +10.6% | 2021 Q4 |
| Millennium Management | 4.74M | 0.79% | $125.6M | added +109.3% | 2021 Q3 |
| T. Rowe Price | 4.51M | 0.75% | $119.6M | added +32.1% | 2021 Q3 |
| Renaissance Technologies | 4.32M | 0.72% | $114.6M | added +25.1% | 2021 Q4 |
| Qube Research & Technologies LTD | 4.25M | 0.71% | $112.7M | added +16% | 2024 Q3 |
| Gilder Gagnon Howe & CO LLC | 4.07M | 0.68% | $107.9M | trimmed -7.3% | 2021 Q3 |
| Jane Street | 3.97M | 0.66% | $105.3M | added +14554.7% | 2021 Q3 |
| Worldquant Millennium Advisors LLC | 3.94M | 0.65% | $104.4M | added +34% | 2022 Q4 |
| Amova Asset Management Americas, INC. | 3.82M | 0.63% | $101.2M | unchanged | 2021 Q4 |
| HMI Capital Management, L.p. (focused) | 3.81M | 0.63% | $101.2M | trimmed -11.4% | 2021 Q3 |
| Arrowstreet Capital | 3.46M | 0.57% | $91.8M | trimmed -24.4% | 2024 Q4 |
| Meritage Group LP (focused) | 3.41M | 0.57% | $90.4M | opened | 2026 Q1 |
| Amundi | 3.33M | 0.55% | $88.3M | added +24.5% | 2022 Q4 |
| Jennison Associates LLC | 3.23M | 0.54% | $85.6M | trimmed -78.7% | 2024 Q4 |
| Champlain Investment Partners, LLC | 3.07M | 0.51% | $81.4M | added +5.6% | 2022 Q3 |
| Federated Hermes, INC. | 3.06M | 0.51% | $81.0M | trimmed -6.5% | 2022 Q4 |
| Marshall Wace | 2.90M | 0.48% | $76.9M | trimmed -45.2% | 2021 Q3 |
| Northern Trust | 2.90M | 0.48% | $76.9M | trimmed -10.4% | 2021 Q4 |
| Goldman Sachs | 2.79M | 0.46% | $74.0M | added +74.5% | 2021 Q3 |
| Charles Schwab Investment Management | 2.74M | 0.46% | $72.6M | added +10.3% | 2021 Q4 |
| American Century Companies INC | 2.60M | 0.43% | $68.9M | added +69.1% | 2022 Q4 |
| Eventide Asset Management, LLC | 2.49M | 0.41% | $66.0M | unchanged | 2023 Q2 |
| D. E. Shaw | 2.41M | 0.40% | $63.9M | added +81.6% | 2024 Q4 |
| Balyasny Asset Management | 2.22M | 0.37% | $58.9M | trimmed -44.9% | 2024 Q1 |
| Nordea Investment Management AB | 2.22M | 0.37% | $58.8M | added +69.8% | 2022 Q4 |
| Edmond DE Rothschild Holding S.a. | 2.06M | 0.34% | $54.7M | added +167.4% | 2021 Q4 |
| Stephens Investment Management Group LLC | 2.01M | 0.33% | $53.3M | added +14.8% | 2021 Q3 |
| Greenvale Capital LLP (focused) | 2.00M | 0.33% | $53.0M | added +5.3% | 2025 Q4 |
| Greenhouse Funds Lllp (focused) | 1.97M | 0.33% | $52.3M | added +6.1% | 2025 Q4 |
| Trexquant Investment LP | 1.88M | 0.31% | $49.8M | added +93.9% | 2022 Q1 |
| ARK Investment Management | 1.81M | 0.30% | $48.0M | trimmed -7.9% | 2021 Q3 |
| Westfield Capital Management CO LP | 1.79M | 0.30% | $47.5M | added +41.2% | 2025 Q1 |
| Zevenbergen Capital Investments LLC | 1.77M | 0.29% | $47.1M | trimmed -4.3% | 2023 Q2 |
| 1832 Asset Management L.p. | 1.73M | 0.29% | $45.9M | trimmed -57.4% | 2022 Q3 |
| Nuveen | 1.58M | 0.26% | $42.0M | added +12.2% | 2022 Q2 |
| Blair William & CO/IL | 1.54M | 0.26% | $40.8M | trimmed -7.2% | 2021 Q4 |
Largest 50 of 734 shown; the full ranked, searchable register is at boothcheck.com/holders/TOST. 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.