TANAKA CAPITAL MANAGEMENT INC — 13F Holdings & Portfolio
CIK 816788 · latest 13F-HR filed 2026-05-18
TANAKA CAPITAL MANAGEMENT INC manages $59.9K in 13F-reported U.S. long-equity assets across 44 reported positions as of its 2026-03-31 13F-HR filing. Its largest disclosed positions are UAMY (8.98%), NXE (8.51%), CORT (7.46%). Quarter over quarter (versus its 2025-12-31 filing) the fund opened 0 new positions, exited 1, added to 17, and trimmed 13.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
$59.9K
Long-equity book
44
Distinct positions
2026-03-31
Filed 2026-05-18
+0 / −1 / ↑17 / ↓13
vs 2025-12-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- United States Antimony$2.3K +73.9%
- Intellia Therapeutics$2.0K +227.9%
- Aura Minerals, Inc.$1.8K +80.8%
- NexGen Energy$1.0K +25.1%
- Cameco$843 +56.2%
Top Trims
- Nuvation Bio Inc.-$3.7K -48.7%
- Philip Morris International-$545 -53.6%
- The Carlyle Group-$309 -18.2%
- Nvidia-$305 -6.6%
- Symbotic-$287 -11.1%
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | United States Antimony | UAMY | 911549103 | $5.4K | 8.98% | 615,975 | SH |
| 2 | NexGen Energy | NXE | 65340P106 | $5.1K | 8.51% | 439,205 | SH |
| 3 | Corcept Therapeutics | CORT | 218352102 | $4.5K | 7.46% | 110,854 | SH |
| 4 | Nvidia | NVDA | 67066G104 | $4.3K | 7.22% | 24,780 | SH |
| 5 | Aura Minerals, Inc. | AURA | G06973104 | $4.1K | 6.82% | 50,085 | SH |
| 6 | Nuvation Bio Inc. | NUVB | 67080N101 | $3.9K | 6.46% | 901,825 | SH |
| 7 | Apple Computing | AAPL | 037833100 | $3.3K | 5.45% | 12,859 | SH |
| 8 | Intellia Therapeutics | IJR | 464287804 | $2.8K | 4.71% | 220,107 | SH |
| 9 | Catalyst Pharmaceuticals | CPRX | 14888U101 | $2.8K | 4.69% | 113,418 | SH |
| 10 | Onto Innovation | ONTO | 683344105 | $2.6K | 4.26% | 12,448 | SH |
| 11 | Applied Materials | AMAT | 038222105 | $2.4K | 3.97% | 6,953 | SH |
| 12 | Cameco | CCJ | 13321L108 | $2.3K | 3.91% | 21,575 | SH |
| 13 | Symbotic | SYM | 87151X101 | $2.3K | 3.83% | 43,094 | SH |
| 14 | AFLAC Inc. | AFL | 001055102 | $2.2K | 3.67% | 20,039 | SH |
| 15 | Electrovaya | ELVA | 28617B606 | $2.0K | 3.32% | 253,930 | SH |
| 16 | Stifel Financial Corp. | SF | 860630102 | $1.4K | 2.36% | 19,090 | SH |
| 17 | The Carlyle Group | CG | 14309L102 | $1.4K | 2.33% | 28,791 | SH |
| 18 | Amazon.com Inc. | AMZN | 023135106 | $1.3K | 2.10% | 6,052 | SH |
| 19 | QUALCOMM | QCOM | 747525103 | $1.2K | 1.96% | 9,104 | SH |
| 20 | PepsiCo, Inc. | PEP | 713448108 | $1.1K | 1.84% | 7,095 | SH |
| 21 | Uranium Energy Corp. | UEC | 916896103 | $1.0K | 1.73% | 77,051 | SH |
| 22 | Mastercard | MA | 57636Q104 | $946 | 1.58% | 1,893 | SH |
| 23 | Philip Morris International | PM | 718172109 | $471 | 0.79% | 2,851 | SH |
| 24 | Meta Platforms | META | 30303M102 | $459 | 0.77% | 803 | SH |
| 25 | ASML Holding N V ADR | ASML | N07059111 | $296 | 0.49% | 224 | SH |
| 26 | Accenture plc | ACN | G1151C101 | $100 | 0.17% | 502 | SH |
| 27 | iShares Russell 1000 | IWB | 464287622 | $84 | 0.14% | 235 | SH |
| 28 | iShares Russell 1000 Growth | IWF | 464287614 | $64 | 0.11% | 149 | SH |
| 29 | JPMorgan Chase and Co. | JPM | 46625H100 | $55 | 0.09% | 188 | SH |
| 30 | BeyondSpring Inc | BYSI | G10830100 | $43 | 0.07% | 26,296 | SH |
| 31 | iShares Russell 1000 Value | IWD | 464287598 | $26 | 0.04% | 123 | SH |
| 32 | Colgate-Palmolive Co. | CL | 194162103 | $22 | 0.04% | 263 | SH |
| 33 | iShares Core SP Small Cap | IJR | 464287804 | $14 | 0.02% | 109 | SH |
| 34 | Mondelez International, Inc. | MDLZ | 609207105 | $11 | 0.02% | 192 | SH |
| 35 | Bristol-Myers Squibb | BMY | 110122108 | $10 | 0.02% | 166 | SH |
| 36 | iShares MSCI EAFE | EFA | 464287465 | $10 | 0.02% | 103 | SH |
| 37 | iShares MSCI EAFE Growth | EFG | 464288885 | $9 | 0.02% | 81 | SH |
| 38 | Procter And Gamble | PG | 742718109 | $9 | 0.02% | 63 | SH |
| 39 | Intel Corp. | INTC | 458140100 | $8 | 0.01% | 180 | SH |
| 40 | Kraft Heinz Company | KHC | 50076Q106 | $6 | 0.01% | 279 | SH |
| 41 | Church and Dwight Co. Inc. | CHD | 171340102 | $2 | 0.00% | 26 | SH |
| 42 | Johnson and Johnson | JNJ | 478160104 | $2 | 0.00% | 9 | SH |
| 43 | Travelers Group | TRV | 89417E109 | $2 | 0.00% | 6 | SH |
| 44 | Fuelnation, Inc. | — | 359528205 | $0 | 0.00% | 251,150 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-03-31 | 2026-05-18 | $59.9K | 44 | 0000816788-26-000002 |
| 2025-12-31 | 2026-02-17 | $54.8K | 45 | 0000816788-26-000001 |
| 2025-09-30 | 2025-11-14 | $55.5K | 45 | 0000816788-25-000005 |