Jane Street Group, LLC
· Reduced
Change
−1.0M
Date
Q1 2026
ST
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Jane Street Group, LLC
· Reduced
Change
−1.0M
Date
Q1 2026
|
Jane Street Group, LLC | Reduced· Q1 2026 | – | −1.0M | – | Q1 2026 | |||||
|
Fourworld Capital Management LLC
· Added
Change
+558K
Date
Q1 2026
|
Fourworld Capital Management LLC | Added· Q1 2026 | – | +558K | – | Q1 2026 | |||||
|
Renaissance Technologies LLC
· Exited
Change
−475K
Δ Own
−100.0%
Date
Q1 2026
|
Renaissance Technologies LLC | Exited· Q1 2026 | – | −475K | −100.0% | Q1 2026 | |||||
|
Advisorshares Investments LLC
· Added
Change
+346K
Date
Q1 2026
|
Advisorshares Investments LLC | Added· Q1 2026 | – | +346K | – | Q1 2026 | |||||
|
Marshall Wace, LLP
· Exited
Change
−286K
Δ Own
−100.0%
Date
Q1 2026
|
Marshall Wace, LLP | Exited· Q1 2026 | – | −286K | −100.0% | Q1 2026 | |||||
|
UBS Group AG
· Added
Change
+264K
Date
Q1 2026
|
UBS Group AG | Added· Q1 2026 | – | +264K | – | Q1 2026 | |||||
|
State Street
· Added
Change
+258K
Date
Q1 2026
|
State Street | Added· Q1 2026 | – | +258K | – | Q1 2026 | |||||
|
Susquehanna International Group, LLP
· Reduced
Change
−235K
Date
Q1 2026
|
Susquehanna International Group, LLP | Reduced· Q1 2026 | – | −235K | – | Q1 2026 | |||||
|
Two Sigma Investments, LP
· Exited
Change
−199K
Δ Own
−100.0%
Date
Q1 2026
|
Two Sigma Investments, LP | Exited· Q1 2026 | – | −199K | −100.0% | Q1 2026 | |||||
|
Balyasny Asset Management L.P.
· Added
Change
+191K
Date
Q1 2026
|
Balyasny Asset Management L.P. | Added· Q1 2026 | – | +191K | – | Q1 2026 | |||||
|
Centiva Capital, LP
· New
Change
+169K
Date
Q1 2026
|
Centiva Capital, LP | New· Q1 2026 | – | +169K | – | Q1 2026 | |||||
|
Two Sigma Advisers, LP
· Exited
Change
−169K
Δ Own
−100.0%
Date
Q1 2026
|
Two Sigma Advisers, LP | Exited· Q1 2026 | – | −169K | −100.0% | Q1 2026 | |||||
|
Xtx Topco Ltd
· Reduced
Change
−168K
Date
Q1 2026
|
Xtx Topco Ltd | Reduced· Q1 2026 | – | −168K | – | Q1 2026 | |||||
|
Aristides Capital LLC
· Exited
Change
−136K
Δ Own
−100.0%
Date
Q1 2026
|
Aristides Capital LLC | Exited· Q1 2026 | – | −136K | −100.0% | Q1 2026 | |||||
|
AQR Capital Management LLC
· New
Change
+117K
Date
Q1 2026
|
AQR Capital Management LLC | New· Q1 2026 | – | +117K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Naor Nir
· Officer
Grant (A)
500K
|
Naor Nir | Officer | Grant (A) | – | 500K | – | 500K | – | Jul 23, 2026 | Jul 23, 2026 | |||||||||
|
Chernett Jorey
· 10% Owner
Buy
+$62K
|
Chernett Jorey | 10% Owner | Buy | $1.78 | +35K | +$62K | 10.6M | +0.3% | Jul 14, 2026 | Jul 15, 2026 | |||||||||
|
Amin Avinash
· Director
3 operations
-42K
|
Amin Avinash | Director | 3 operations | – | -42K | – | 30K | – | Jun 15, 2026 | Jun 17, 2026 | |||||||||
|
Madryn Asset Management, LP
· 10% Owner
3 operations
42K
|
Madryn Asset Management, LP | 10% Owner | 3 operations | – | 42K | – | 2.3M | – | Jun 15, 2026 | Jun 17, 2026 | |||||||||
|
Madryn Asset Management, LP
· 10% Owner
3 operations
30K
|
Madryn Asset Management, LP | 10% Owner | 3 operations | – | 30K | – | 2.3M | – | May 28, 2026 | Jun 17, 2026 | |||||||||
|
Rosengarten Megan
· Director
Grant (A)
30K
|
Rosengarten Megan | Director | Grant (A) | – | 30K | – | 171K | – | May 28, 2026 | May 29, 2026 | |||||||||
|
Muir Glenn P.
· Director
Grant (A)
30K
|
Muir Glenn P. | Director | Grant (A) | – | 30K | – | 402K | – | May 28, 2026 | May 29, 2026 | |||||||||
|
Cucuz Sasha
· Director
Grant (A)
30K
|
Cucuz Sasha | Director | Grant (A) | – | 30K | – | 1.5M | – | May 28, 2026 | May 29, 2026 | |||||||||
|
Conley Sheryl L.
· Director
Grant (A)
30K
|
Conley Sheryl L. | Director | Grant (A) | – | 30K | – | 252K | – | May 28, 2026 | May 29, 2026 | |||||||||
|
Cascella Robert
· Director
Grant (A)
36K
|
Cascella Robert | Director | Grant (A) | – | 36K | – | 625K | – | May 28, 2026 | May 29, 2026 | |||||||||
|
Amin Avinash
· Director
Grant (A)
30K
|
Amin Avinash | Director | Grant (A) | – | 30K | – | 72K | – | May 28, 2026 | May 29, 2026 | |||||||||
|
Chernett Jorey
· 10% Owner
Buy
+$117K
|
Chernett Jorey | 10% Owner | Buy | $1.17 | +100K | +$117K | 10.6M | – | May 19, 2026 | May 20, 2026 | |||||||||
|
Chernett Jorey
· 10% Owner
Buy
+$636K
|
Chernett Jorey | 10% Owner | Buy | $1.34 | +475K | +$636K | 10.5M | – | May 12, 2026 | May 13, 2026 | |||||||||
|
Chernett Jorey
· 10% Owner
Buy
+$151K
|
Chernett Jorey | 10% Owner | Buy | $1.51 | +100K | +$151K | 10.0M | – | Apr 21, 2026 | Apr 22, 2026 | |||||||||
|
Chernett Jorey
· 10% Owner
Buy
+$158K
|
Chernett Jorey | 10% Owner | Buy | $1.58 | +100K | +$158K | 9.9M | – | Apr 20, 2026 | Apr 22, 2026 | |||||||||
N
A
M
G
A
A
94 reporting institutions disclosed STIM 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.