ST
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Prescott Group Capital Management, L.L.C.
· Reduced
Change
−664K
Date
Q1 2026
|
Prescott Group Capital Management, L.L.C. | Reduced· Q1 2026 | – | −664K | – | Q1 2026 | |||||
|
Bank Julius Baer & Co. Ltd, Zurich
· New
Change
+541K
Date
Q1 2026
|
Bank Julius Baer & Co. Ltd, Zurich | New· Q1 2026 | – | +541K | – | Q1 2026 | |||||
|
Lagoda Investment Management, L.P.
· Reduced
Change
−511K
Date
Q1 2026
|
Lagoda Investment Management, L.P. | Reduced· Q1 2026 | – | −511K | – | Q1 2026 | |||||
|
Sequoia Financial Advisors, LLC
· New
Change
+381K
Date
Q1 2026
|
Sequoia Financial Advisors, LLC | New· Q1 2026 | – | +381K | – | Q1 2026 | |||||
|
Vanguard
· Added
Change
+238K
Date
Q1 2026
|
Vanguard | Added· Q1 2026 | – | +238K | – | Q1 2026 | |||||
|
Captrust Financial Advisors
· New
Change
+221K
Date
Q1 2026
|
Captrust Financial Advisors | New· Q1 2026 | – | +221K | – | Q1 2026 | |||||
|
Gmt Capital Corp
· New
Change
+127K
Date
Q1 2026
|
Gmt Capital Corp | New· Q1 2026 | – | +127K | – | Q1 2026 | |||||
|
Geode
· Added
Change
+110K
Date
Q1 2026
|
Geode | Added· Q1 2026 | – | +110K | – | Q1 2026 | |||||
|
Barclays PLC
· Reduced
Change
−82K
Date
Q1 2026
|
Barclays PLC | Reduced· Q1 2026 | – | −82K | – | Q1 2026 | |||||
|
Lpl Financial LLC
· Reduced
Change
−76K
Date
Q1 2026
|
Lpl Financial LLC | Reduced· Q1 2026 | – | −76K | – | Q1 2026 | |||||
|
Renaissance Technologies LLC
· Reduced
Change
−76K
Δ Own
−16.9%
Date
Q1 2026
|
Renaissance Technologies LLC | Reduced· Q1 2026 | – | −76K | −16.9% | Q1 2026 | |||||
|
Millennium Management LLC
· New
Change
+69K
Date
Q1 2026
|
Millennium Management LLC | New· Q1 2026 | – | +69K | – | Q1 2026 | |||||
|
BlackRock
· Reduced
Change
−68K
Date
Q1 2026
|
BlackRock | Reduced· Q1 2026 | – | −68K | – | Q1 2026 | |||||
|
Two Sigma Investments, LP
· Exited
Change
−68K
Δ Own
−100.0%
Date
Q1 2026
|
Two Sigma Investments, LP | Exited· Q1 2026 | – | −68K | −100.0% | Q1 2026 | |||||
|
State Street
· Added
Change
+66K
Date
Q1 2026
|
State Street | Added· Q1 2026 | – | +66K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Shamir Nachum
· Director
Grant (A)
43K
|
Shamir Nachum | Director | Grant (A) | – | 43K | – | 179K | +31.6% | Jul 1, 2026 | Jul 1, 2026 | |||||||||
|
Benfer David
· Director
Grant (A)
43K
|
Benfer David | Director | Grant (A) | – | 43K | – | 559K | +8.4% | Jul 1, 2026 | Jul 1, 2026 | |||||||||
|
Levin Ross B.
· Director
Grant (A)
43K
|
Levin Ross B. | Director | Grant (A) | – | 43K | – | 621K | +7.5% | Jul 1, 2026 | Jul 1, 2026 | |||||||||
|
Curet Myriam
· Director
Grant (A)
43K
|
Curet Myriam | Director | Grant (A) | – | 43K | – | 435K | +11.0% | Jul 1, 2026 | Jul 1, 2026 | |||||||||
|
Fischel Nathan
· Director
Grant (A)
43K
|
Fischel Nathan | Director | Grant (A) | – | 43K | – | 721K | +6.4% | Jul 1, 2026 | Jul 1, 2026 | |||||||||
|
Menawat Arun Swarup
· Director
Grant (A)
43K
|
Menawat Arun Swarup | Director | Grant (A) | – | 43K | – | 1.0M | +4.3% | Jul 1, 2026 | Jul 1, 2026 | |||||||||
|
Peery Kimberly R.
· CFO
Grant (A)
40K
|
Peery Kimberly R. | CFO | Grant (A) | – | 40K | – | 341K | – | Apr 11, 2026 | Apr 13, 2026 | |||||||||
|
Menawat Arun Swarup
· Director
Grant (A)
47K
|
Menawat Arun Swarup | Director | Grant (A) | – | 47K | – | 992K | – | Jan 2, 2026 | Jan 2, 2026 | |||||||||
|
Benfer David
· Director
Grant (A)
47K
|
Benfer David | Director | Grant (A) | – | 47K | – | 516K | – | Jan 2, 2026 | Jan 2, 2026 | |||||||||
|
Curet Myriam
· Director
Grant (A)
47K
|
Curet Myriam | Director | Grant (A) | – | 47K | – | 392K | – | Jan 2, 2026 | Jan 2, 2026 | |||||||||
|
Fischel Nathan
· Director, 10% Owner
Grant (A)
47K
|
Fischel Nathan | Director, 10% Owner | Grant (A) | – | 47K | – | 678K | – | Jan 2, 2026 | Jan 2, 2026 | |||||||||
|
Levin Ross B.
· Director
Grant (A)
47K
|
Levin Ross B. | Director | Grant (A) | – | 47K | – | 578K | – | Jan 2, 2026 | Jan 2, 2026 | |||||||||
|
Shamir Nachum
· Director
Grant (A)
47K
|
Shamir Nachum | Director | Grant (A) | – | 47K | – | 136K | – | Jan 2, 2026 | Jan 2, 2026 | |||||||||
|
Isaac Paul J.
· Director, Other
Buy
+$22K
|
Isaac Paul J. | Director, Other | Buy | $2.18 | +10K | +$22K | 97K | – | Nov 17, 2025 | Nov 18, 2025 | |||||||||
|
Isaac Paul J.
· Director, Other
Buy
+$45K
|
Isaac Paul J. | Director, Other | Buy | $2.24 | +20K | +$45K | 2.8M | – | Nov 14, 2025 | Nov 18, 2025 | |||||||||
98 reporting institutions disclosed STXS position changes in the Q1 2026 snapshot.
For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.
An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.
Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.
Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.
A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.