Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in WKEY held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | UBS Group AG | 83K | $511K | -9.7% | 2.516% | 0.00% |
| 2 | CITADEL ADVISORS LLC | 61K | $375K | β | 1.847% | 0.00% |
| 3 | Finer Wealth Management, Inc. | 49K | $304K | 0.0% | 1.496% | 0.15% |
| 4 | MARSHALL WACE, LLP | 39K | $239K | +36.6% | 1.178% | 0.00% |
| 5 | JANE STREET GROUP, LLC | 34K | $211K | +7.4% | 1.039% | 0.00% |
| 6 | MORGAN STANLEY | 23K | $140K | -53.1% | 0.687% | 0.00% |
| 7 | XTX Topco Ltd | 13K | $79K | β | 0.387% | 0.00% |
| 8 | SBI Securities Co., Ltd. | 10K | $64K | +23.3% | 0.315% | 0.00% |
| 9 | BANK OF MONTREAL /CAN/ | 10K | $61K | -33.3% | 0.302% | 0.00% |
| 10 | RHUMBLINE ADVISERS | 7K | $45K | +64.6% | 0.221% | 0.00% |
| 11 | GAMMA Investing LLC | 4K | $26K | +3.3% | 0.128% | 0.00% |
| 12 | ADVISOR GROUP HOLDINGS, INC. | 1K | $8K | -28.4% | 0.041% | 0.00% |
| 13 | WealthCollab, LLC | 800 | $5K | 0.0% | 0.024% | 0.00% |
| 14 | NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | 124 | $761 | β | 0.004% | 0.00% |
| 15 | HRT FINANCIAL LP | 16K | $97 | β | 0.481% | 0.00% |
| 16 | Virtu Financial LLC | 14K | $88 | β | 0.432% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in WKEY β a direct measure of their conviction.
Filings activity in WKEY during Q1 2026, grouped by how each filer changed its position.
Institutions that opened a new WKEY position in Q1 2026
Institutions that fully closed their WKEY position in Q1 2026
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 16 | +6.7% | 8.29% | 1.59 pp | $2M | 16% |
| Q4 2025 | 15 | +50% | 9.88% | +4.98 pp | $2M | +102% |
| Q3 2025 | 10 | 17% | 4.90% | +1.73 pp | $1M | +54% |
| Q2 2025 | 12 | +9.1% | 3.17% | +0.87 pp | $1M | +38% |
| Q1 2025 | 11 | +0.0% | 2.30% | 4.86 pp | $1M | 68% |
| Q4 2024 | 11 | +57% | 7.16% | +7.14 pp | $2M | +42348% |
| Q3 2024 | 7 | +17% | 0.02% | 0.11 pp | $0M | 87% |
| Q2 2024 | 6 | β | 0.13% | β | $0M | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying WKEY stock.
Based on Q1 2026 13F filings, institutional ownership of WISeKey International Holding AG stands at 8.3%, held across 16 reporting institutions.
UBS Group AG is the largest reported institutional holder of WKEY, with approximately 83,261 shares worth $0.00B as of Q1 2026.
Yes β 2 widely-followed marquee investors appear among the top 25 institutional holders of WKEY, including CITADEL ADVISORS LLC, JANE STREET GROUP, LLC.
Our composite Smart Money Score for WKEY is 47 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
5 institutions opened new positions in WKEY during Q1 2026, while 4 fully exited. 2 added to existing positions and 9 trimmed.
WKEY institutional ownership fell by 1.59 percentage points quarter-over-quarter, with a net change of +1 holders.
The top 10 institutions account for 98.1% of all reported 13F value in WKEY, and the top 25 account for 100.0%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
WISeKey International Holding AG (WKEY) Institutional Ownership