SEC 13F Intelligence

Managers / Q4 2020 · view latest →

TANAKA CAPITAL MANAGEMENT INC

CIK 0000816788 · 60 EAST 42ND STREET, SUITE 4000, NEW YORK, NY, 10165 · 2124903380

Reported Value
$45M
Q4 2020
Positions
51
Filings on Record
28
2019–present window
Filed
Feb 11, 2021
original filing

Summary

Tanaka Capital Management Inc reported $45M in U.S.-listed holdings across 51 positions for Q4 2020.

The portfolio is heavily concentrated: Amyris alone accounts for 27.7% of reported value.

Compared with Q3 2020, the fund opened 0 new positions and exited 2.

Portfolio Metrics

Turnover
+3.9%
vs prior filed quarter
Top-10 Concentration
+74.7%
share of reported value
Largest Position
+27.7%
Amyris

Methodology: turnover is min(value bought, value sold) ÷ average reported value across the two quarters — value-based, so market moves inflate it slightly versus a share-based measure. Concentration and largest position are shares of the filing’s total reported value, options excluded, with multiple share classes and repeated sub-manager rows for the same issuer combined into one position — the same rule the holdings table uses by default. New/exited counts compare against the prior filed quarter. All figures derive solely from the fund’s 13F filings.

Reported Value by Quarter

13F Reported Value
Q1 ’19: $33MQ1 ’19Q2 ’19: $33MQ3 ’19: $31MQ4 ’19: $32MQ1 ’20: $23MQ1 ’20Q2 ’20: $32MQ3 ’20: $32MQ4 ’20: $45MQ1 ’21: $79MQ1 ’21Q2 ’21: $74MQ3 ’21: $70MQ4 ’21: $53MQ1 ’22: $50MQ1 ’22Q2 ’22: $31MQ3 ’22: $34MQ4 ’22: $32MQ1 ’23: $34MQ1 ’23Q2 ’23: $37MQ3 ’23: $35MQ4 ’23: $41MQ1 ’24: $41MQ1 ’24Q2 ’24: $42MQ3 ’24: $43MQ4 ’24: $44MQ1 ’25: $42MQ1 ’25Q3 ’25: $56MQ4 ’25: $55MQ1 ’26: $60Mfilingsflow.com

Portfolio Composition

By security type
Common Stock: 65.7%Other: 34.1%ADR: 0.1%Right: 0.0%
  • Common Stock · 65.7% · $30M
  • Other · 34.1% · $15M
  • ADR · 0.1% · $52,000
  • Right · 0.0% · $1,000

Quarter-over-Quarter Changes full breakdown →

vs Q3 2020 (amended baseline)

IssuerMoveShare ΔShares nowValue ΔValue now
ALKAlaska Air Group Inc.SOLD OUT−11.9K0−$435,000$0
ProShares UltraPro Short SP500SOLD OUT−46.0K0−$400,000$0
AMDAdvanced Micro DevicesTRIMMED−310155−$24,000$14,000
SFStifel Financial Corp.ADDED+4.3K13.1K+$218,000$663,000
Amyris WarrantsADDED+725.7K2.23M+$9M$13M
Nanoco Group plcTRIMMED−2.47M4.25M−$547,000$595,000
JNJJohnson and JohnsonTRIMMED−2049−$2,000$8,000
CHDChurch and Dwight Co. Inc.TRIMMED−40100−$4,000$9,000

Value changes conflate price moves with buying and selling — share changes are the real signal. Share counts are not split-adjusted.

Holdings — Q4 2020

50 positions (from 51 filing rows — )
Export to Excel
#IssuerClass% PortfolioValue ↓Shares
1AmyrisCOM27.73%$12M2.02M
2AAPLApple Computinghistory →COM18.66%$8M63.3K
3QCOMQUALCOMMhistory →COM6.59%$3M19.5K
4TSLATesla, Inc.history →COM5.04%$2M3.2K
5ONTOOnto Innovationhistory →COM3.57%$2M33.8K
6AFLAFLAC Inc.history →COM2.98%$1M30.2K
7AMZNAmazon.com Inc.history →COM2.95%$1M408
8TSEMTower Semiconductorhistory →COM2.58%$1M45.0K
9CORTCorcept Therapeuticshistory →COM2.33%$1M40.2K
10NXENexGen Energyhistory →COM2.29%$1M374.4K
11IONSIonis Pharmaceuticalshistory →COM2.11%$950,00016.8K
12ViacomCBSCOM2.07%$931,00025.0K
13ACNAccenture plchistory →COM1.74%$782,0003.0K
14CN2Catalyst Pharmaceuticalshistory →COM1.67%$752,000225.3K
15HONHoneywell International Inc.history →COM1.59%$714,0003.4K
16SFStifel Financial Corp.history →COM1.47%$663,00013.1K
17Google Inc.COM1.37%$616,000352
18MAMastercardhistory →COM1.35%$609,0001.7K
19Nanoco Group plcCOM1.32%$595,0004.25M
20NFLXNetflixhistory →COM1.30%$587,0001.1K
21The Carlyle GroupCOM1.18%$531,00016.9K
22PMPhilip Morris Internationalhistory →COM1.05%$471,0005.7K
23PEPPepsiCo, Inc.COM0.99%$447,0003.0K
24BeyondSpring IncCOM0.92%$413,00033.8K
25AMATApplied MaterialsCOM0.88%$397,0004.6K
26Amyris WarrantsCOM0.62%$281,000169.2K
27JPMJPMorgan Chase and Co.COM0.54%$245,0001.9K
28Altria Group, Inc.COM0.46%$206,0005.0K
29Lam Research Corp.COM0.44%$198,000420
30NVDANvidiaCOM0.43%$193,000370
31METAFacebook, Inc.COM0.34%$152,000558
32Amyris RightsCOM0.29%$132,00039.8K
33ASML Holding N V ADRCOM0.24%$109,000224
34BMYBristol-Myers SquibbCOM0.19%$86,0001.4K
35ETSYEtsy, Inc.COM0.16%$74,000415
36DISThe Walt Disney CompanyCOM0.12%$52,000285
37NICENICE Systems Ltd.COM0.12%$52,000184
38CLColgate-Palmolive Co.COM0.06%$25,000288
39ICHRIchor HoldingsCOM0.05%$23,000770
40MDLZMondelez International, Inc.COM0.04%$18,000302
41INTCIntel Corp.COM0.04%$18,000355
42PGProcter And GambleCOM0.03%$15,000110
43AMDAdvanced Micro DevicesCOM0.03%$14,000155
44Kraft Heinz CompanyCOM0.02%$10,000279
45CHDChurch and Dwight Co. Inc.COM0.02%$9,000100
46JNJJohnson and JohnsonCOM0.02%$8,00049
47Bristol-Myers Squibb Contingent Value RightsCOM0.00%$1,0001.6K
48TRVTravelers GroupCOM0.00%$1,0006
49Fuelnation, Inc.COM0.00%$0251.2K
50Liminal BioSciencesCOM0.00%$022

Filing History

QuarterReported ValuePositionsFiledTypeLinks
Q1 2026$60M44May 18, 202613F-HRchanges · EDGAR ↗
Q4 2025$55M45Feb 17, 202613F-HRchanges · EDGAR ↗
Q3 2025$56M45Nov 14, 202513F-HRchanges · EDGAR ↗
Q1 2025$42M42May 15, 202513F-HRchanges · EDGAR ↗
Q4 2024$44M44Feb 14, 202513F-HRchanges · EDGAR ↗
Q3 2024$43M45Nov 15, 202413F-HRchanges · EDGAR ↗
Q2 2024$42M47Aug 15, 202413F-HRchanges · EDGAR ↗
Q1 2024$41M48May 15, 202413F-HRchanges · EDGAR ↗
Q4 2023$41M49Feb 14, 202413F-HRchanges · EDGAR ↗
Q3 2023$35M47Nov 14, 202313F-HRchanges · EDGAR ↗
Q2 2023$37M48Aug 14, 202313F-HRchanges · EDGAR ↗
Q1 2023$34M49May 12, 202313F-HRchanges · EDGAR ↗
Q4 2022$32M48Feb 15, 202313F-HRchanges · EDGAR ↗
Q3 2022$34M48Nov 15, 202213F-HRchanges · EDGAR ↗
Q2 2022$31M48Aug 15, 202213F-HRchanges · EDGAR ↗
Q1 2022$50M53May 16, 202213F-HRchanges · EDGAR ↗
Q4 2021$53M53Feb 14, 202213F-HRchanges · EDGAR ↗
Q3 2021$70M56Nov 15, 202113F-HRchanges · EDGAR ↗
Q2 2021$74M55Aug 13, 202113F-HRchanges · EDGAR ↗
Q1 2021$79M51May 17, 202113F-HRchanges · EDGAR ↗
Q4 2020$45M51Feb 11, 202113F-HRchanges · EDGAR ↗
Q3 2020$32M53Nov 13, 202013F-HRchanges · EDGAR ↗
Q2 2020$32M53Aug 17, 202013F-HRchanges · EDGAR ↗
Q1 2020$23M51May 15, 202013F-HRchanges · EDGAR ↗
Q4 2019$32M51Feb 14, 202013F-HRchanges · EDGAR ↗
Q3 2019$31M51Nov 15, 201913F-HRchanges · EDGAR ↗
Q2 2019$33M52Aug 15, 201913F-HRchanges · EDGAR ↗
Q1 2019$33M54May 16, 201913F-HRchanges · EDGAR ↗

13F filings are due up to 45 days after quarter end, so holdings shown here lag the fund’s current book. Source: original SEC filing on EDGAR ↗.