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TANAKA CAPITAL MANAGEMENT INC

Institutional InvestorSimilar funds →SEC EDGAR: CIK 816788
Institutional-grade research for retail investors

Sector Allocation

  • Materials30.0%$17.9M
  • Technology27.6%$16.5M
  • Healthcare18.7%$11.2M
  • Financials7.7%$4.6M
  • Other7.4%$4.4M
  • Industrials3.8%$2.3M
  • Consumer Staples2.7%$1.6M
  • Consumer Discretionary2.1%$1.3M

AUM History

13fpro.ai/research/fund/tanaka-capital-management-inc-816788

Largest positions — Q1 2026

Top 20 stock positions. Options are left out: 13F reports them at the underlying's value.

13fpro.ai/research/fund/tanaka-capital-management-inc-816788

TANAKA CAPITAL MANAGEMENT INC 13F holdings — Q1 2026

$59.9M portfolio (+20.3% QoQ) · 43 holdings · Q1 2026 13F · top 10 are 65% of the stock portfolio

All holdings — TANAKA CAPITAL MANAGEMENT INC (Q1 2026)

43 disclosed positions from the Form 13F-HR on SEC EDGAR, with quarter-over-quarter share changes. Largest by value first; the ten above are not repeated.

Company
AMAT$AMATAPPLIED MATERIALS INC /DE$2.4M-0.5%
CCJ$CCJCAMECO CORP$2.3M+32%
SYM$SYMSymbotic Inc.$2.3M-0.6%
AFL$AFLAFLAC INC$2.2M-2%
ELVA$ELVAElectrovaya Inc.$2.0M—
SF$SFSTIFEL FINANCIAL CORP$1.4M+50%
— The Carlyle Group - COM$1.4M—
AMZN$AMZNAMAZON COM INC$1.3M+20%
QCOM$QCOMQUALCOMM INC/DE$1.2M+18%
PEP$PEPPEPSICO INC$1.1M+141%
UEC$UECURANIUM ENERGY CORP$1.0M—
MA$MAMastercard Inc$946K+58%
PM$PMPhilip Morris International Inc.$471K-55%
META$METAMeta Platforms, Inc.$459K-0.7%
ASML$ASMLASML HOLDING NVadr$296K—

What changed in Q1 2026

Against the previous quarter's 13F: 0 new, 9 added to, 13 trimmed, 1 sold out. Share-count changes; largest moves by dollar size first.

New positions (0)

No new positions this quarter.

Added to (9)

  • PEP$PEPPEPSICO INC+141%

    now $1.1M · held 11+ qtrs

  • CCJ$CCJCAMECO CORP+32%

    now $2.3M · held 11+ qtrs

  • SF$SFSTIFEL FINANCIAL CORP+50%

    now $1.4M · held 11+ qtrs

  • AUGO$AUGOAura Minerals Inc.+12%

    now $4.1M · held 6 qtrs, 2 adds in a row

  • MA$MAMastercard Inc+58%

    now $946K · held 11+ qtrs

  • NUVB$NUVBNuvation Bio Inc.+7%

    now $3.9M · held 3 qtrs, 3 adds in a row

+3 more in the Excel export

Trimmed (13)

  • PM$PMPhilip Morris International Inc.-55%

    now $471K · held 11+ qtrs

  • ONTO$ONTOONTO INNOVATION INC.-3%

    now $2.6M · held 11+ qtrs

  • NXE$NXENexGen Energy Ltd.-0.8%

    now $5.1M · held 11+ qtrs

  • AFL$AFLAFLAC INC-2%

    now $2.2M · held 11+ qtrs

  • CPRX$CPRXCATALYST PHARMACEUTICALS, INC.-0.9%

    now $2.8M · held 11+ qtrs

  • AAPL$AAPLApple Inc.-0.6%

    now $3.3M · held 11+ qtrs

+7 more in the Excel export

Sold out (1)

  • GTLS$GTLSCHART INDUSTRIES INCwas $35K

    held 4 qtrs

Firm AUM (Form ADV): $69.4M as of 2025-12-31 · SEC IAPD

Holdings by quarter

Every 13F TANAKA CAPITAL MANAGEMENT INC has filed, 40 earlier quarters. Pick one to see what it held then.

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Q1 2026 13F filed with the SEC on May 18, 2026. Prices are closing prices as of Oct 26, 2026.

Average quality of TANAKA CAPITAL MANAGEMENT's top 20 holdings: 55/100 (our AI quality score, weighted by position size; 16 of the 20 are scored)

Top 10 since filing

-6.1%

Value-weighted move of the 10 largest stock positions

Turnover

2%

Last quarter; 21% over the last 4

Top 10 weight

65%

Share of the stock portfolio in its 10 largest positions

Held 4+ quarters

81%

Share of portfolio value in positions held a year or more

Highest-quality names it owns(among its 100 largest positions)

The 8 highest-scoring companies in this portfolio are a Pro feature.

How these are measured
  • Moves since the quarter-end and since the filing date use our own daily closing prices, from the close on (or just before) each date to the latest close.
  • Turnover is the lesser of shares bought or sold in a quarter, valued at the quarter-end prices in the 13F, divided by the average of the two quarters' stock portfolio values.
  • Quarters held and add/trim streaks count back only through quarters whose filed holdings add up to the filing's own cover-page total (back to Q2 2023 for this fund). A change counts as an add or a trim when the split-adjusted share count moves by more than 1%.
  • Estimate, not the fund's reported cost. For each quarter in the current holding period in which the fund's share count rose (split-adjusted), we take that quarter's average daily close and weight it by the shares added; sales do not change an average cost. Quarters where the stock's price history and the 13F's own implied price disagree by more than 2x are left out.
  • Put and call option rows report the value of the underlying shares, not a position the fund paid for, so they are left out of all of the above.

Portfolio Overview

TANAKA CAPITAL MANAGEMENT INC disclosed 43 positions worth $59.9M in its Form 13F-HR for Q1 2026, led by $UAMY (UNITED STATES ANTIMONY CORP) at 9.0% of the equity portfolio, followed by $NXE and $CORT. During the quarter the fund opened 0 new positions and exited 1 and a full exit from $GTLS. The portfolio is most concentrated in Materials (30.0% of disclosed assets). All figures are sourced directly from TANAKA CAPITAL MANAGEMENT INC’s Form 13F-HR filing with the SEC under CIK 816788.

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AI-Powered Hedge Fund Analysis: TANAKA CAPITAL MANAGEMENT INC

13F Pro is an AI hedge fund tracker and stock research platform. For TANAKA CAPITAL MANAGEMENT INC (SEC CIK: 816788), the platform ingests every quarterly Form 13F filing and applies AI-powered analysis on top — 10 specialized AI analysts (value, growth, momentum, macro, activist, and more) debate the fund's top positions and publish AI-generated analysis with cited SEC sources.

Every holding in TANAKA CAPITAL MANAGEMENT INC's portfolio is scored on an AI quality ranking built from its SEC filings (ROIC, FCF margin, revenue growth, institutional flow, earnings quality, shareholder dilution, and more). Track accumulation and distribution quarter over quarter, identify conviction positions, and see AI stock analysis for each position — alongside 8,700+ other institutional filers and 2,800+ AI-ranked companies.