Position in PUBM
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$27,803,034
+$2,687,967 QoQ
Shares Held
3,398,904
+20.0% QoQ
Ownership
7.32%
of shares outstanding
% of Portfolio
7.29%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Jun 2022
16 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in PUBM Over Time
Shares Held
Position Value (USD)
Position in Software - Application
Technology · as of Mar 31, 2026Graham Holdings Co holds $27,803,034 across 1 Software - Application name. PUBM ranks #1 (100.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | PUBM |
PubMatic, Inc.
This page
|
3,398,904 | $27,803,034 |
All Filings in PUBM
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18 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $27,803,034 | 3,398,904 | Shares | Sole | 2026-05-15 | |
| 2026-03-31 | $27,803,034 | 3,398,904 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $25,115,067 | 2,831,462 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $23,444,505 | 2,831,462 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $35,223,387 | 2,831,462 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $25,879,562 | 2,831,462 | Shares | Sole | 2025-05-15 | |
| 2025-03-31 | $25,879,562 | 2,831,462 | Shares | Sole | 2025-05-14 | |
| 2024-12-31 | $34,249,176 | 2,331,462 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $34,668,839 | 2,331,462 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $40,078,007 | 1,973,314 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $46,807,008 | 1,973,314 | Shares | Sole | 2024-05-16 | |
| 2023-12-31 | $32,184,751 | 1,973,314 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $23,877,099 | 1,973,314 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $36,072,179 | 1,973,314 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $27,271,199 | 1,973,314 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $20,839,448 | 1,626,811 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $17,990,516 | 1,081,811 | Shares | Sole | 2022-11-15 | |
| 2022-06-30 | $13,536,611 | 851,895 | Shares | Sole | 2022-08-15 | |
| No filing history on record for this holder in this stock. | ||||||