State Street
· Added
Change
+1.2M
Date
Q1 2026
MD
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
State Street
· Added
Change
+1.2M
Date
Q1 2026
|
State Street | Added· Q1 2026 | – | +1.2M | – | Q1 2026 | |||||
|
Hillsdale Investment Management Inc.
· Reduced
Change
−1.1M
Date
Q1 2026
|
Hillsdale Investment Management Inc. | Reduced· Q1 2026 | – | −1.1M | – | Q1 2026 | |||||
|
Trigran Investments, Inc.
· Added
Change
+1.0M
Date
Q1 2026
|
Trigran Investments, Inc. | Added· Q1 2026 | – | +1.0M | – | Q1 2026 | |||||
|
Nantahala Capital Management, LLC
· Added
Change
+981K
Date
Q1 2026
|
Nantahala Capital Management, LLC | Added· Q1 2026 | – | +981K | – | Q1 2026 | |||||
|
Paradigm Capital Management Inc
· Added
Change
+959K
Date
Q1 2026
|
Paradigm Capital Management Inc | Added· Q1 2026 | – | +959K | – | Q1 2026 | |||||
|
Deutsche Bank AG
· Added
Change
+907K
Date
Q1 2026
|
Deutsche Bank AG | Added· Q1 2026 | – | +907K | – | Q1 2026 | |||||
|
Disciplined Growth Investors Inc
· Reduced
Change
−844K
Date
Q1 2026
|
Disciplined Growth Investors Inc | Reduced· Q1 2026 | – | −844K | – | Q1 2026 | |||||
|
Ameriprise Financial Inc
· Exited
Change
−596K
Δ Own
−100.0%
Date
Q1 2026
|
Ameriprise Financial Inc | Exited· Q1 2026 | – | −596K | −100.0% | Q1 2026 | |||||
|
BlackRock
· Added
Change
+578K
Date
Q1 2026
|
BlackRock | Added· Q1 2026 | – | +578K | – | Q1 2026 | |||||
|
Renaissance Technologies LLC
· Added
Change
+553K
Δ Own
+22.4%
Date
Q1 2026
|
Renaissance Technologies LLC | Added· Q1 2026 | – | +553K | +22.4% | Q1 2026 | |||||
|
Los Angeles Capital Management LLC
· Added
Change
+518K
Date
Q1 2026
|
Los Angeles Capital Management LLC | Added· Q1 2026 | – | +518K | – | Q1 2026 | |||||
|
AQR Capital Management LLC
· Added
Change
+505K
Date
Q1 2026
|
AQR Capital Management LLC | Added· Q1 2026 | – | +505K | – | Q1 2026 | |||||
|
Op Asset Management Ltd
· Added
Change
+505K
Date
Q1 2026
|
Op Asset Management Ltd | Added· Q1 2026 | – | +505K | – | Q1 2026 | |||||
|
Phocas Financial Corp.
· Exited
Change
−493K
Δ Own
−100.0%
Date
Q1 2026
|
Phocas Financial Corp. | Exited· Q1 2026 | – | −493K | −100.0% | Q1 2026 | |||||
|
Marshall Wace, LLP
· Added
Change
+480K
Date
Q1 2026
|
Marshall Wace, LLP | Added· Q1 2026 | – | +480K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Doug Rice
· Officer
Tax withholding or exercise payment (F)
-$50K
|
Doug Rice | Officer | Tax withholding or exercise payment (F) | $3.95 | -13K | -$50K | 400K | −3.1% | Jul 2, 2026 | Jul 7, 2026 | |||||||||
|
Maersk-Moller Kimberly
· Officer
Tax withholding or exercise payment (F)
-$76K
|
Maersk-Moller Kimberly | Officer | Tax withholding or exercise payment (F) | $3.83 | -20K | -$76K | 310K | −6.0% | Jun 24, 2026 | Jun 25, 2026 | |||||||||
|
Bierman James L.
· Director
Grant (A)
$185K
|
Bierman James L. | Director | Grant (A) | $3.64 | 51K | $185K | 264K | – | Jun 10, 2026 | Jun 12, 2026 | |||||||||
|
Puhy Dorothy E.
· Director
Grant (A)
$185K
|
Puhy Dorothy E. | Director | Grant (A) | $3.64 | 51K | $185K | 109K | – | Jun 10, 2026 | Jun 12, 2026 | |||||||||
|
Newton Todd
· Director
Grant (A)
$185K
|
Newton Todd | Director | Grant (A) | $3.64 | 51K | $185K | 464K | – | Jun 10, 2026 | Jun 12, 2026 | |||||||||
|
Hawkins William A.
· Director
Grant (A)
$185K
|
Hawkins William A. | Director | Grant (A) | $3.64 | 51K | $185K | 255K | – | Jun 10, 2026 | Jun 12, 2026 | |||||||||
|
Olson Tiffany
· Director
Grant (A)
$185K
|
Olson Tiffany | Director | Grant (A) | $3.64 | 51K | $185K | 109K | – | Jun 10, 2026 | Jun 12, 2026 | |||||||||
|
Hulse William Frank IV
· Officer
Tax withholding or exercise payment (F)
-$89K
|
Hulse William Frank IV | Officer | Tax withholding or exercise payment (F) | $4.38 | -20K | -$89K | 543K | – | Mar 13, 2026 | Mar 17, 2026 | |||||||||
|
Maersk-Moller Kimberly
· Officer
Tax withholding or exercise payment (F)
-$30K
|
Maersk-Moller Kimberly | Officer | Tax withholding or exercise payment (F) | $4.38 | -7K | -$30K | 329K | – | Mar 13, 2026 | Mar 17, 2026 | |||||||||
|
Maersk-Moller Kimberly
· Officer
Exercise or conversion (M/X/C)
$193K
|
Maersk-Moller Kimberly | Officer | Exercise or conversion (M/X/C) | $4.50 | 43K | $193K | 357K | – | Mar 10, 2026 | Mar 12, 2026 | |||||||||
|
Maersk-Moller Kimberly
· Officer
Tax withholding or exercise payment (F)
-$96K
|
Maersk-Moller Kimberly | Officer | Tax withholding or exercise payment (F) | $4.50 | -21K | -$96K | 336K | – | Mar 10, 2026 | Mar 12, 2026 | |||||||||
|
Hulse William Frank IV
· Officer
Exercise or conversion (M/X/C)
$614K
|
Hulse William Frank IV | Officer | Exercise or conversion (M/X/C) | $4.50 | 136K | $614K | 625K | – | Mar 10, 2026 | Mar 12, 2026 | |||||||||
|
Hulse William Frank IV
· Officer
Tax withholding or exercise payment (F)
-$277K
|
Hulse William Frank IV | Officer | Tax withholding or exercise payment (F) | $4.50 | -61K | -$277K | 563K | – | Mar 10, 2026 | Mar 12, 2026 | |||||||||
|
Doug Rice
· Officer
Exercise or conversion (M/X/C)
$1.1M
|
Doug Rice | Officer | Exercise or conversion (M/X/C) | $4.50 | 243K | $1.1M | 509K | – | Mar 10, 2026 | Mar 12, 2026 | |||||||||
|
Doug Rice
· Officer
Tax withholding or exercise payment (F)
-$434K
|
Doug Rice | Officer | Tax withholding or exercise payment (F) | $4.50 | -96K | -$434K | 412K | – | Mar 10, 2026 | Mar 12, 2026 | |||||||||
N
A
M
G
A
A
224 reporting institutions disclosed MDXG 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.