ValueAct Holdings, L.P.: ROBLOX CORP (RBLX): Quarterly 13F Position History
As of Q1 2026, ValueAct Holdings, L.P. reported 5,848,621 shares of ROBLOX CORP (RBLX), worth $330.8M and representing 5.8% of its 13F equity book. Quarter-over-quarter share count change: 127,200 (-2.1%) . The position first appeared in Q3 2023 and has been disclosed across 11 13F-HR filings in Pactolio's tracked window.
- 5,848,621Shares Held (Latest Filing)
- $330.8MReported Market Value (Latest Filing)
- 5.8%Portfolio Weight (% of 13F Equity Book)
- 127,200Quarter-over-Quarter Share Change
- -$153.4MQuarter-over-Quarter Value Change
- 10,135,921Peak Reported Shares (Historical)
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 11 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q1 2026 | 5,848,621 | 127,200 | -2.1% | $330.8M | 5.8% | $56.6 |
| Q4 2025 | 5,975,821 | +1,692,600 | +39.5% | $484.2M | 6.9% | $81.0 |
| Q3 2025 | 4,283,221 | 448,800 | -9.5% | $593.3M | 10.0% | $138.5 |
| Q2 2025 | 4,732,021 | 4,032,900 | -46.0% | $497.8M | 8.9% | $105.2 |
| Q1 2025 | 8,764,921 | 1,371,000 | -13.5% | $510.9M | 11.2% | $58.3 |
| Q4 2024 | 10,135,921 | 0 | — | $586.5M | 13.4% | $57.9 |
| Q3 2024 | 10,135,921 | +7,835,921 | +340.7% | $448.6M | 11.4% | $44.3 |
| Q2 2024 | 2,300,000 | 0 | — | $85.6M | 2.4% | $37.2 |
| Q1 2024 | 2,300,000 | +500,000 | +27.8% | $87.8M | 1.9% | $38.2 |
| Q4 2023 | 1,800,000 | 0 | — | $82.3M | 1.6% | $45.7 |
| Q3 2023 | 1,800,000 | — | — | $52.1M | 1.2% | $29.0 |
Methodology & FAQ
How This Position History Is Sourced
Each row is one SEC Form 13F-HR filing disclosing this position. Share count, market value, and reported quarter are taken verbatim from the filing; portfolio weight is recomputed against the same filing's total reported equity book. Implied price-per-share is market value divided by shares — a quarter-end mark, not the manager's cost basis. See the full methodology document for the normalization rules.
When did ValueAct Holdings, L.P. first disclose a RBLX position in 13F-HR filings?
ValueAct Holdings, L.P. first reported ROBLOX CORP (RBLX) on its 13F-HR filing for the period ending 2023-09-30 (Q3 2023). The position has appeared on 11 reported quarters within Pactolio's tracked window.
What was ValueAct Holdings, L.P.'s most recent quarter-over-quarter share-count change in RBLX?
Between Q4 2025 and Q1 2026, ValueAct Holdings, L.P. reduced its RBLX position by 127,200 shares (-2.1%), leaving 5,848,621 shares at a market value of $330.8M.
Does the implied price-per-share represent ValueAct Holdings, L.P.'s cost basis in RBLX?
No. The implied price-per-share column is the 13F-HR reported market value divided by reported share count on the filing date (end of quarter). It is a quarter-end mark, not a cost basis or transaction price. Use it as a sanity check on the value column, not as an indicator of the manager's entry or exit price.