a16z Capital Management, L.L.C. — BLOCK INC XYZ: Quarterly 13F Position History
a16z Capital Management, L.L.C. has reported BLOCK INC (XYZ) on 10 13F-HR filings in Pactolio's tracked window, first appearing in Q4 2023. As of Q1 2026, the position is sized at 1,016,697 shares ($61.2M market value, 4.74% of the equity book).
- 1,016,697Shares Held (Latest Filing)
- $61.2MReported Market Value (Latest Filing)
- 4.74%Portfolio Weight (% of 13F Equity Book)
- 0Quarter-over-Quarter Share Change
- -$5.0MQuarter-over-Quarter Value Change
- 1,016,697Peak Reported Shares (Historical)
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 10 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q1 2026 | 1,016,697 | 0 | — | $61.2M | 4.74% | $60.18 |
| Q4 2025 | 1,016,697 | 0 | — | $66.2M | 4.19% | $65.09 |
| Q3 2025 | 1,016,697 | 0 | — | $73.5M | 5.27% | $72.27 |
| Q2 2025 | 1,016,697 | 0 | — | $69.1M | 22.07% | $67.93 |
| Q1 2025 | 1,016,697 | 0 | — | $55.2M | 7.88% | $54.33 |
| Q4 2024 | 1,016,697 | 0 | — | $86.4M | 11.59% | $84.99 |
| Q3 2024 | 1,016,697 | 0 | — | $68.3M | 6.00% | $67.13 |
| Q2 2024 | 1,016,697 | 0 | — | $65.6M | 5.59% | $64.49 |
| Q1 2024 | 1,016,697 | 0 | — | $86.0M | 6.22% | $84.58 |
| Q4 2023 | 1,016,697 | — | — | $78.6M | 5.28% | $77.35 |
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 a16z Capital Management, L.L.C. first disclose a XYZ position in 13F-HR filings?
a16z Capital Management, L.L.C. first reported BLOCK INC (XYZ) on its 13F-HR filing for the period ending 2023-12-31 (Q4 2023). The position has appeared on 10 reported quarters within Pactolio's tracked window.
What was a16z Capital Management, L.L.C.'s most recent quarter-over-quarter share-count change in XYZ?
a16z Capital Management, L.L.C. held the same 1,016,697 shares of XYZ between Q4 2025 and Q1 2026 — the reported share count was unchanged quarter-over-quarter.
Does the implied price-per-share represent a16z Capital Management, L.L.C.'s cost basis in XYZ?
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.