Sanders Morris Harris LLC
· New
Change
+758K
Date
Q1 2026
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Sanders Morris Harris LLC
· New
Change
+758K
Date
Q1 2026
|
Sanders Morris Harris LLC | New· Q1 2026 | – | +758K | – | Q1 2026 | |||||
|
Informed Momentum Co LLC
· New
Change
+138K
Date
Q1 2026
|
Informed Momentum Co LLC | New· Q1 2026 | – | +138K | – | Q1 2026 | |||||
|
1492 Capital Management LLC
· Added
Change
+47K
Date
Q1 2026
|
1492 Capital Management LLC | Added· Q1 2026 | – | +47K | – | Q1 2026 | |||||
|
Change
+36K
Date
Q1 2026
|
Renaissance Technologies LLC | New· Q1 2026 | – | +36K | – | Q1 2026 | |||||
|
Citadel Advisors LLC
· Reduced
Change
−27K
Δ Own
−52.2%
Date
Q1 2026
|
Citadel Advisors LLC | Reduced· Q1 2026 | – | −27K | −52.2% | Q1 2026 | |||||
|
Vanguard
· Added
Change
+26K
Date
Q1 2026
|
Vanguard | Added· Q1 2026 | – | +26K | – | Q1 2026 | |||||
|
Jane Street Group, LLC
· New
Change
+19K
Date
Q1 2026
|
Jane Street Group, LLC | New· Q1 2026 | – | +19K | – | Q1 2026 | |||||
|
Gsa Capital Partners LLP
· New
Change
+17K
Date
Q1 2026
|
Gsa Capital Partners LLP | New· Q1 2026 | – | +17K | – | Q1 2026 | |||||
|
Geode
· Added
Change
+16K
Date
Q1 2026
|
Geode | Added· Q1 2026 | – | +16K | – | Q1 2026 | |||||
|
Centiva Capital, LP
· New
Change
+13K
Date
Q1 2026
|
Centiva Capital, LP | New· Q1 2026 | – | +13K | – | Q1 2026 | |||||
|
Xtx Topco Ltd
· New
Change
+12K
Date
Q1 2026
|
Xtx Topco Ltd | New· Q1 2026 | – | +12K | – | Q1 2026 | |||||
|
Pacific Ridge Capital Partners, LLC
· Added
Change
+10K
Date
Q1 2026
|
Pacific Ridge Capital Partners, LLC | Added· Q1 2026 | – | +10K | – | Q1 2026 | |||||
|
BlackRock
· Added
Change
+4K
Date
Q1 2026
|
BlackRock | Added· Q1 2026 | – | +4K | – | Q1 2026 | |||||
|
Avanza Fonder AB
· Added
Change
+3K
Date
Q1 2026
|
Avanza Fonder AB | Added· Q1 2026 | – | +3K | – | Q1 2026 | |||||
|
Thompson Davis & Co., Inc.
· Added
Change
+778
Date
Q1 2026
|
Thompson Davis & Co., Inc. | Added· Q1 2026 | – | +778 | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Heekin Geoffrey E.
· Director
2 operations
0
|
Heekin Geoffrey E. | Director | 2 operations | – | 0 | – | 0 | – | Jun 2, 2026 | Jun 4, 2026 | |||||||||
|
Heekin Geoffrey E.
· Director
Grant (A)
60K
|
Heekin Geoffrey E. | Director | Grant (A) | – | 60K | – | 60K | – | Jun 2, 2026 | Jun 4, 2026 | |||||||||
|
Kravitz Peter
· Director
2 operations
0
|
Kravitz Peter | Director | 2 operations | – | 0 | – | 0 | – | Jun 2, 2026 | Jun 4, 2026 | |||||||||
|
Kravitz Peter
· Director
Grant (A)
60K
|
Kravitz Peter | Director | Grant (A) | – | 60K | – | 60K | – | Jun 2, 2026 | Jun 4, 2026 | |||||||||
|
Del Guercio Joseph
· Director
2 operations
0
|
Del Guercio Joseph | Director | 2 operations | – | 0 | – | 0 | – | Jun 2, 2026 | Jun 4, 2026 | |||||||||
|
Del Guercio Joseph
· Director
Grant (A)
44K
|
Del Guercio Joseph | Director | Grant (A) | – | 44K | – | 44K | – | Jun 2, 2026 | Jun 4, 2026 | |||||||||
|
Tacker Sarah Beth
· Officer
2 operations
0
|
Tacker Sarah Beth | Officer | 2 operations | – | 0 | – | 89K | – | May 29, 2026 | Jun 2, 2026 | |||||||||
|
Tacker Sarah Beth
· Officer
Tax withholding or exercise payment (F)
-$30K
|
Tacker Sarah Beth | Officer | Tax withholding or exercise payment (F) | $3.54 | -8K | -$30K | 18K | – | May 29, 2026 | Jun 2, 2026 | |||||||||
|
Tacker Sarah Beth
· Officer
2 operations
115K
|
Tacker Sarah Beth | Officer | 2 operations | – | 115K | – | 89K | – | Apr 29, 2026 | Apr 30, 2026 | |||||||||
|
Yoder Todd Wilbur
· CFO
4 operations
0
|
Yoder Todd Wilbur | CFO | 4 operations | – | 0 | – | 121K | – | Apr 14, 2026 | Apr 16, 2026 | |||||||||
|
Yoder Todd Wilbur
· CFO
2 operations
-$151K
|
Yoder Todd Wilbur | CFO | 2 operations | $3.91 | -39K | -$151K | 96K | – | Apr 14, 2026 | Apr 16, 2026 | |||||||||
|
Goldsteen Mitchell B.
· Director
Sell
−$358K
|
Goldsteen Mitchell B. | Director | Sell | $2.86 | −125K | −$358K | 21.0M | – | Mar 17, 2026 | Mar 20, 2026 | |||||||||
|
Yal Ural
· Director, Officer
2 operations
-97K
|
Yal Ural | Director, Officer | 2 operations | – | -97K | – | 180K | – | Dec 2, 2025 | Dec 4, 2025 | |||||||||
|
Goldsteen Mitchell B.
· Director, 10% Owner
Sell
−$44K
|
Goldsteen Mitchell B. | Director, 10% Owner | Sell | $2.96 | −15K | −$44K | 21.1M | – | Aug 29, 2025 | Sep 2, 2025 | |||||||||
|
Goldsteen Mitchell B.
· Director, 10% Owner
Sell
−$33K
|
Goldsteen Mitchell B. | Director, 10% Owner | Sell | $3.18 | −10K | −$33K | 21.1M | – | Aug 28, 2025 | Sep 2, 2025 | |||||||||
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21 reporting institutions disclosed SHIM 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.