WKEY
Wisekey International Holding S.A.Company with tickers: WKEY, WSKEF
CIK
1738699
CUSIP
97727L408
Shares Outstanding
8,176,574
Website
https://www.wisekey.com
13F Activity (30d)
6 filings
6 filers
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Holders: 11
Total Value: $956,228
Total Shares: 155,738
Institutional Ownership Trend
11 quarters
Holder Concentration
Across 11 13F filers · Δ vs Dec 31, 2025Top Holder
31.8%
−10.5 pts
Top 5
84.4%
−6.4 pts
Top 10
99.9%
+0.0 pts
HHI
1,968
Moderately concentrated−609
Quarterly Activity
vs Dec 31, 2025
New
4
Increased
4
Decreased
1
Sold Out
4
Unchanged
2
Holder count:
0
Institutional value:
-44.2%
Shares held:
-28.6%
Top Buyers
vs Dec 31, 2025| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Large MARSHALL WACE, LLP | +10,454 | 38,992 | |
| Mega RHUMBLINE ADVISERS | +2,868 | 7,310 | |
| Mid SBI Securities Co., Ltd. | +1,971 | 10,430 | |
| Mid GAMMA Investing LLC | +137 | 4,250 |
Top Sellers
vs Dec 31, 2025| Institution | Sold | Now Holds | Open |
|---|---|---|---|
| Large OSAIC HOLDINGS, INC. | −535 | 1,350 |
Top New Positions
vs Dec 31, 2025| Institution | Acquired | Value (USD) | Open |
|---|---|---|---|
| Large HRT FINANCIAL LP | 15,901 | $97,632 | |
| Mid Virtu Financial LLC | 14,296 | $87,777 | |
| Mid XTX Topco Ltd | 12,788 | $78,518 | |
| Large NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | 124 | $761 |
Top Sold-Out Positions
vs Dec 31, 2025| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Mega UBS Group AG | 92,184 | $723,642 | |
| Mid Jump Financial, LLC | 14,360 | $112,726 | |
| Small Dynamic Technology Lab Private Ltd | 13,669 | $107,301 | |
| Small MILLER WEALTH ADVISORS, LLC | 240 | $1,884 |
| Holder | Value (USD) | % of 13F | Shares | Type | Discretion | Filed | Open | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Small Finer Wealth Management, Inc. | $303,911 | 31.78% | 49,497 | Shares | Sole | 2026-05-12 | ||||
| Large MARSHALL WACE, LLP | $239,410 | 25.04% | 38,992 | Shares | Other | 2026-05-15 | ||||
| Large HRT FINANCIAL LP | $97,632 | 10.21% | 15,901 | Shares | Defined | 2026-05-14 | ||||
| Mid Virtu Financial LLC | $87,777 | 9.18% | 14,296 | Shares | Defined | 2026-05-14 | ||||
| Mid XTX Topco Ltd | $78,518 | 8.21% | 12,788 | Shares | Defined | 2026-05-15 | ||||
| Mid SBI Securities Co., Ltd. Broker-Dealer | $64,040 | 6.70% | 10,430 | Shares | Defined | 2026-04-28 | ||||
| Mega RHUMBLINE ADVISERS | $44,883 | 4.69% | 7,310 | Shares | Sole | 2026-05-12 | ||||
| Mid GAMMA Investing LLC | $26,095 | 2.73% | 4,250 | Shares | Defined | 2026-04-06 | ||||
| Large OSAIC HOLDINGS, INC. | $8,289 | 0.87% | 1,350 | Shares | Defined | 2026-05-15 | ||||
| Micro WealthCollab, LLC | $4,912 | 0.51% | 800 | Shares | Sole | 2026-05-13 | ||||
| Large NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | $761 | 0.08% | 124 | Shares | Defined | 2026-05-07 | ||||
| No holders match your search. | ||||||||||