TANAKA CAPITAL MANAGEMENT INC
Filing Date
Global Rank
#6,445
/ 8,232
▲ 308
Top Industry
Biotechnology
21.9%
3Y Alpha vs SPY
+2.7%
Period ended 2 months ago
Filed May 18, 2026 · 27d
24 quarters · since Mar 2020
Clone Performance
Jun 2023–Jun 2026 · vs SPYHypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.
Cloned portfolio
+88.3%
SPY
+76.3%
Annualised alpha
+2.7%
Max drawdown
−23.4%
Estimate. 13F holdings are quarter-lagged and long-only, so the clone rebalances about 45 days after each period end — when the filing becomes public — and excludes options and short positions. Past performance does not predict future results.
Portfolio Concentration
32 positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025Top Position
10.5%
−4.9 pts
Top 5
45.3%
−2.9 pts
Top 10
71.4%
−2.6 pts
HHI
641
Diversified−72
Portfolio Trend
24 quarters · across all stocks
Sector Breakdown
As of Mar 31, 2026| Sector | % Portfolio | Value |
|---|---|---|
| Technology | 27.0% | $13,794,190 |
| Healthcare | 21.9% | $11,200,973 |
| Energy | 16.6% | $8,478,226 |
| Basic Materials | 10.5% | $5,377,461 |
| Financial Services | 9.0% | $4,612,518 |
| Industrials | 8.4% | $4,278,332 |
| Consumer Defensive | 3.2% | $1,618,172 |
| Consumer Cyclical | 2.5% | $1,260,450 |
| Communication Services | 0.9% | $459,420 |
Last Quarter's Activity
Export CSVAdded To
Positions the filer increased
7 positions
| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| NUVB | Nuvation Bio Inc. | +60,220 | 901,825 | $3,868,829 | |
| SF | Stifel Financial Corp | +6,362 | 19,090 | $1,411,132 | |
| CCJ | Cameco Corp | +5,185 | 21,575 | $2,343,260 | |
| PEP | Pepsico Inc | +4,150 | 7,095 | $1,101,782 | |
| QCOM | Qualcomm Inc/De | +1,362 | 9,104 | $1,172,413 | |
| AMZN | Amazon Com Inc | +1,010 | 6,052 | $1,260,450 | |
| MA | Mastercard Inc | +692 | 1,893 | $945,856 | |
| No positions match the current search. | |||||
Trimmed
Positions the filer reduced
13 positions
| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| PM | Philip Morris International Inc. | −3,485 | 2,851 | $471,384 | |
| NXE | NexGen Energy Ltd. | −3,420 | 439,205 | $5,094,778 | |
| CPRX | Catalyst Pharmaceuticals, Inc. | −1,000 | 113,418 | $2,808,229 | |
| ONTO | Onto Innovation Inc. | −385 | 12,448 | $2,552,711 | |
| AFL | Aflac Inc | −330 | 20,039 | $2,198,478 | |
| SYM | Symbotic Inc. | −260 | 43,094 | $2,292,600 | |
| CORT | Corcept Therapeutics Inc | −230 | 110,854 | $4,468,524 | |
| AAPL | Apple Inc. | −78 | 12,859 | $3,263,485 | |
| AMAT | Applied Materials Inc /De | −35 | 6,953 | $2,376,465 | |
| NVDA | Nvidia Corp | −30 | 24,780 | $4,321,632 | |
| JPM | Jpmorgan Chase & Co | −19 | 188 | $55,302 | |
| ACN | Accenture plc | −9 | 502 | $99,541 | |
| META | Meta Platforms, Inc. | −6 | 803 | $459,420 | |
| No positions match the current search. | |||||
New Positions
Positions the filer opened this quarterNo qualifying positions this quarter.
Sold Out
Positions the filer fully exited
1 positions
| Ticker | Company | Shares | Value | Open |
|---|---|---|---|---|
| GTLS | Chart Industries Inc | 170 | $35,059 | |
| No positions match the current search. | ||||
32 positions ·
$51,079,742 total
· as of Mar 31, 2026
All sectors
Basic Materials
Communication Services
Consumer Cyclical
Consumer Defensive
Energy
Financial Services
Healthcare
Industrials
Technology
| Ticker | Company | Type | Shares | Value (USD) | % of Portfolio | History |
|---|---|---|---|---|---|---|
| UAMY |
United States Antimony Corp
Basic Materials
|
Held | 615,975 | $5,377,461 | 10.53% | |
| NXE |
NexGen Energy Ltd.
Energy
|
Reduced | 439,205 | $5,094,778 | 9.97% | |
| CORT |
Corcept Therapeutics Inc
Healthcare
|
Reduced | 110,854 | $4,468,524 | 8.75% | |
| NVDA |
Nvidia Corp
Technology
|
Reduced | 24,780 | $4,321,632 | 8.46% | |
| NUVB |
Nuvation Bio Inc.
Healthcare
|
Added | 901,825 | $3,868,829 | 7.57% | |
| AAPL |
Apple Inc.
Technology
|
Reduced | 12,859 | $3,263,485 | 6.39% | |
| CPRX |
Catalyst Pharmaceuticals, Inc.
Healthcare
|
Reduced | 113,418 | $2,808,229 | 5.50% | |
| ONTO |
Onto Innovation Inc.
Technology
|
Reduced | 12,448 | $2,552,711 | 5.00% | |
| AMAT |
Applied Materials Inc /De
Technology
|
Reduced | 6,953 | $2,376,465 | 4.65% | |
| CCJ |
Cameco Corp
Energy
|
Added | 21,575 | $2,343,260 | 4.59% | |
| SYM |
Symbotic Inc.
Industrials
|
Reduced | 43,094 | $2,292,600 | 4.49% | |
| AFL |
Aflac Inc
Financial Services
|
Reduced | 20,039 | $2,198,478 | 4.30% | |
| ELVA |
Electrovaya Inc.
Industrials
|
Held | 253,930 | $1,985,732 | 3.89% | |
| SF |
Stifel Financial Corp
Financial Services
|
Added | 19,090 | $1,411,132 | 2.76% | |
| AMZN |
Amazon Com Inc
Consumer Cyclical
|
Added | 6,052 | $1,260,450 | 2.47% | |
| QCOM |
Qualcomm Inc/De
Technology
|
Added | 9,104 | $1,172,413 | 2.30% | |
| PEP |
Pepsico Inc
Consumer Defensive
|
Added | 7,095 | $1,101,782 | 2.16% | |
| UEC |
Uranium Energy Corp
Energy
|
Held | 77,051 | $1,040,188 | 2.04% | |
| MA |
Mastercard Inc
Financial Services
|
Added | 1,893 | $945,856 | 1.85% | |
| PM |
Philip Morris International Inc.
Consumer Defensive
|
Reduced | 2,851 | $471,384 | 0.92% | |
| META |
Meta Platforms, Inc.
Communication Services
|
Reduced | 803 | $459,420 | 0.90% | |
| ACN |
Accenture plc
Technology
|
Reduced | 502 | $99,541 | 0.19% | |
| JPM |
Jpmorgan Chase & Co
Financial Services
|
Reduced | 188 | $55,302 | 0.11% | |
| BYSI |
BeyondSpring Inc.
Healthcare
|
Held | 26,296 | $43,125 | 0.08% | |
| CL |
Colgate Palmolive Co
Consumer Defensive
|
Held | 263 | $22,415 | 0.04% | |
| MDLZ |
Mondelez International, Inc.
Consumer Defensive
|
Held | 192 | $11,066 | 0.02% | |
| BMY |
Bristol Myers Squibb Co
Healthcare
|
Held | 166 | $10,067 | 0.02% | |
| PG |
PROCTER & GAMBLE Co
Consumer Defensive
|
Held | 63 | $9,099 | 0.02% | |
| INTC |
Intel Corp
Technology
|
Held | 180 | $7,943 | 0.02% | |
| CHD |
Church & Dwight Co Inc /De/
Consumer Defensive
|
Held | 26 | $2,426 | 0.00% | |
| JNJ |
Johnson & Johnson
Healthcare
|
Held | 9 | $2,199 | 0.00% | |
| TRV |
Travelers Companies, Inc.
Financial Services
|
Held | 6 | $1,750 | 0.00% |