WISeKey International Holding AG (WKEY) Ownership
WKEY ownership summary
as of October 18, 2026- Institutions
- 7.0% of shares outstanding
- Insiders
- 0.30% of shares outstanding
- Shares outstanding
- 8.2M
- Float
- 6.7M shares available to trade
- Short interest
- 9.12% 461K shares short
- Days to cover
- 13.80 short interest up 11.9% vs prior month
- Institutions 7.00%
- Insiders 0.30%
- Other investors 92.71%
WKEY top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Marshall Wace Asset Management Ltd | 1.34% | 153K | $933,761 | +114,335 (+293.2%) | June 30, 2026 |
| 2 | Citadel Advisors Llc | 0.49% | 57K | $344,877 | −4,487 (−7.3%) | June 30, 2026 |
| 3 | Jane Street Group LLC | 0.49% | 56K | $342,642 | +21,868 (+63.6%) | June 30, 2026 |
| 4 | Morgan Stanley - Brokerage Accounts | 0.44% | 50K | $303,459 | +27,104 (+119.3%) | June 30, 2026 |
| 5 | Finer Wealth Management, Inc. | 0.43% | 49K | $301,437 | — | June 30, 2026 |
| 6 | UBS Group AG | 0.24% | 27K | $164,503 | −56,249 (−67.6%) | June 30, 2026 |
| 7 | Renaissance Technologies Corp | 0.22% | 25K | $151,793 | +24,925 (0.0%) | June 30, 2026 |
| 8 | SBI Securities Co Ltd | 0.11% | 13K | $76,399 | +2,115 (+20.3%) | June 30, 2026 |
| 9 | Rhumbline Advisers | 0.10% | 11K | $69,785 | +4,149 (+56.8%) | June 30, 2026 |
| 10 | HRT FINANCIAL LLC | 0.10% | 11K | $66,241 | −5,024 (−31.6%) | June 30, 2026 |
| 11 | GAMMA Investing LLC | 0.04% | 4,108 | $25,018 | −142 (−3.3%) | June 30, 2026 |
| 12 | Advisor Group Holdings, Inc. | 0.01% | 1,350 | $8,222 | — | June 30, 2026 |
| 13 | Integrated Wealth Concepts LLC | 0.01% | 643 | $3,916 | +643 (0.0%) | June 30, 2026 |
| 14 | SRS Capital Advisors Inc | <0.01% | 330 | $2,010 | +330 (0.0%) | June 30, 2026 |
| 15 | Abound Wealth Management | <0.01% | 160 | $974 | +160 (0.0%) | June 30, 2026 |
| 16 | JPMorgan Chase & Co | <0.01% | 153 | $932 | −285 (−65.1%) | June 30, 2026 |
| 17 | Caitong International Asset Management Co., Limited. | <0.01% | 6 | $37 | +6 (0.0%) | June 30, 2026 |
| 18 | Dynamic Technology Lab Private Ltd | 0.00% | — | — | −13,669 (−100.0%) | March 31, 2026 |
| 19 | Bank of Montreal | 0.00% | — | — | −10,002 (−100.0%) | June 30, 2026 |
| 20 | BMO Capital Markets Corp. | 0.00% | — | — | −10,002 (−100.0%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 10 holders added 196K shares and 8 cut 100K.
WKEY top mutual fund and ETF holders
3 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | R-co Thematic Blockchain Global Eq I EUR | 0.76% | 87K | $529,647 | −2 (−0.0%) | July 31, 2026 |
| 2 | Selectra Shield Opportunities A EUR Acc | 0.31% | 35K | $213,150 | — | September 30, 2026 |
| 3 | Fidelity Nasdaq Composite Index | 0.02% | 2,733 | $16,644 | — | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
WKEY shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns WKEY
Institutional investors own 7.0% of WISeKey International's shares and insiders 0.30%. The largest holder is Marshall Wace Asset Management Ltd with 1.34% of the shares (153K), as of June 30, 2026. Among the top 20 institutions, 10 added shares and 8 reduced their stake in the latest filings. Short interest is 9.12% of the float, or 13.80 days of average trading volume. The share count fell 25.8% since 2015.
Related: WKEY analyst forecast, WKEY key metrics. See the WKEY stock overview for the latest quote and news.
WKEY ownership FAQ
Who owns the most WISeKey International stock?
The largest shareholders of WISeKey International are Marshall Wace Asset Management Ltd (1.34%), Citadel Advisors Llc (0.49%), Jane Street Group LLC (0.49%), Morgan Stanley - Brokerage Accounts (0.44%), Finer Wealth Management, Inc. (0.43%).
What percentage of WISeKey International is owned by institutions?
Institutions hold 7.0% of WISeKey International's shares outstanding; insiders hold 0.30%.
Which funds own WISeKey International?
The largest fund holders of WISeKey International are R-co Thematic Blockchain Global Eq I EUR (0.76%), Selectra Shield Opportunities A EUR Acc (0.31%), Fidelity Nasdaq Composite Index (0.02%).
What is WISeKey International's short interest?
461K shares of WISeKey International were sold short, 9.12% of the float; at the average daily volume it would take 13.80 days to cover.
How many shares of WISeKey International are outstanding?
WISeKey International has 8.2M shares outstanding, of which 6.7M are in the public float.