Imposter Professor Oak #4
SetJapanese 25Th Anniversary Promo
Year2021
Ungraded
$7.37+$0.38
50 sales · last Jul 19, 2026
Grade 8
$9.99
1 sales · last Mar 5, 2025
PSA 9
$18.95
4 sales · last Jul 20, 2026
BGS 9.5
$5.50
1 sales · last Oct 27, 2024
PSA 10
$74.95+$14.95
51 sales · last Jul 19, 2026
CGC 10
$21.75
2 sales · last Mar 21, 2026
BGS 10
$84.99
1 sales · last May 5, 2026
CGC Pristine 10
$78.50
2 sales · last May 31, 2026
Imposter Professor Oak #4 price guide
Imposter Professor Oak #4 is a collectible Pokémon card from the Japanese 25Th Anniversary Promo expansion (2021). Setlot tracks 112 recorded sales for this card across 8 grade tiers, 0 of them in the last 90 days. PSA 10 copies have a 90-day median of $74.95. Ungraded copies currently trade around $7.37. The top grade commands 12× the ungraded price — grading meaningfully changes what this card is worth. The highest sale on record is $119.00 (PSA 10, Jun 11, 2026). 16 listings are live right now with asks from $7.23.
Price history
Grading premium
Median graded price vs. the ungraded copy ($7.37) — a rough read on whether grading pays off.
Grade 8
1.4×
$9.99
PSA 9
2.6×
$18.95
BGS 9.5
0.7×
$5.50
PSA 10
10×
$74.95
CGC 10
3.0×
$21.75
BGS 10
12×
$84.99
CGC Pristine 10
11×
$78.50
Live listings
Search on eBay ↗Lowest asks per grade. Older listings may have ended — “seen” is when we last confirmed each one.
| Grade | Listing | Marketplace | Seen | Price |
|---|---|---|---|---|
| Ungraded 12 tracked | Imposter Professor Oak 004/025 25th Anniversary Promo Japanese Pokemon Card - NM ericeatscardboard | eBay | 4mo ago | $7.23↗ |
| Imposter Professor Oak 25th Promo 004/025 s8a-P - 25th Anniversary Pokemon Japan japanesetcg-japan | eBay |
Recent sales
| Date | Grade | Title | Sold on | Price |
|---|---|---|---|---|
| Jul 20, 2026 | PSA 9 | 2021 Pokemon Japanese SWSH Promo 25th Anniversary Holo Imposter Professor Oak #4 PSA 9 MINT | — | $19.20 |
| Jul 19, 2026 | Ungraded | TAG 10 GEM MINT Japanese Pokemon 2021 Imposter Professor Oak 004/025 S8a P 25th↗ | eBay | $65.00 |
| Jul 19, 2026 | PSA 10 | PSA 10 Pokemon Imposter Professor Oak 004 25th Anniv Holo Promo PSA Japanese↗ | eBay | $74.95 |
| Jul 19, 2026 | PSA 10 | PSA10 GEM MT IMPOSTER PROFESSOR OAK 004/025 S8a-P Japanese 25th ANNIVERSARY 616↗ | eBay | $75.00 |
