Squadron Capital Management LLC
· New
Change
+3.6M
Date
Q1 2026
ZN
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Squadron Capital Management LLC
· New
Change
+3.6M
Date
Q1 2026
|
Squadron Capital Management LLC | New· Q1 2026 | – | +3.6M | – | Q1 2026 | |||||
|
Two Sigma Investments, LP
· Added
Change
+1.5M
Δ Own
+100.9%
Date
Q1 2026
|
Two Sigma Investments, LP | Added· Q1 2026 | – | +1.5M | +100.9% | Q1 2026 | |||||
|
Two Sigma Advisers, LP
· Exited
Change
−1.5M
Δ Own
−100.0%
Date
Q1 2026
|
Two Sigma Advisers, LP | Exited· Q1 2026 | – | −1.5M | −100.0% | Q1 2026 | |||||
|
Renaissance Technologies LLC
· Reduced
Change
−946K
Δ Own
−32.8%
Date
Q1 2026
|
Renaissance Technologies LLC | Reduced· Q1 2026 | – | −946K | −32.8% | Q1 2026 | |||||
|
Qube Research & Technologies Ltd
· Added
Change
+620K
Date
Q1 2026
|
Qube Research & Technologies Ltd | Added· Q1 2026 | – | +620K | – | Q1 2026 | |||||
|
Millennium Management LLC
· Added
Change
+617K
Date
Q1 2026
|
Millennium Management LLC | Added· Q1 2026 | – | +617K | – | Q1 2026 | |||||
|
Susquehanna International Group, LLP
· Added
Change
+561K
Date
Q1 2026
|
Susquehanna International Group, LLP | Added· Q1 2026 | – | +561K | – | Q1 2026 | |||||
|
Gsa Capital Partners LLP
· Reduced
Change
−549K
Date
Q1 2026
|
Gsa Capital Partners LLP | Reduced· Q1 2026 | – | −549K | – | Q1 2026 | |||||
|
UBS Group AG
· Reduced
Change
−519K
Date
Q1 2026
|
UBS Group AG | Reduced· Q1 2026 | – | −519K | – | Q1 2026 | |||||
|
Morgan Stanley
· Reduced
Change
−453K
Date
Q1 2026
|
Morgan Stanley | Reduced· Q1 2026 | – | −453K | – | Q1 2026 | |||||
|
Goldman Sachs Group Inc
· Added
Change
+344K
Date
Q1 2026
|
Goldman Sachs Group Inc | Added· Q1 2026 | – | +344K | – | Q1 2026 | |||||
|
Cdc Financial, Inc.
· New
Change
+284K
Date
Q1 2026
|
Cdc Financial, Inc. | New· Q1 2026 | – | +284K | – | Q1 2026 | |||||
|
Woodline Partners LP
· Reduced
Change
−265K
Date
Q1 2026
|
Woodline Partners LP | Reduced· Q1 2026 | – | −265K | – | Q1 2026 | |||||
|
Xtx Topco Ltd
· Reduced
Change
−254K
Date
Q1 2026
|
Xtx Topco Ltd | Reduced· Q1 2026 | – | −254K | – | Q1 2026 | |||||
|
Bank of America Corp
· Reduced
Change
−235K
Date
Q1 2026
|
Bank of America Corp | Reduced· Q1 2026 | – | −235K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Johnson David Michael
· Director
Grant (A)
57K
|
Johnson David Michael | Director | Grant (A) | – | 57K | – | 308K | – | Jun 16, 2026 | Jun 18, 2026 | |||||||||
|
Skvarka Jan
· Director
Grant (A)
57K
|
Skvarka Jan | Director | Grant (A) | – | 57K | – | 264K | – | Jun 16, 2026 | Jun 18, 2026 | |||||||||
|
Walker Luke Nathaniel
· Director
Grant (A)
57K
|
Walker Luke Nathaniel | Director | Grant (A) | – | 57K | – | 201K | – | Jun 16, 2026 | Jun 18, 2026 | |||||||||
|
Kariuki Enoch
· Director
Grant (A)
57K
|
Kariuki Enoch | Director | Grant (A) | – | 57K | – | 194K | – | Jun 16, 2026 | Jun 18, 2026 | |||||||||
|
Myers Scott Dunseth
· Director
Grant (A)
57K
|
Myers Scott Dunseth | Director | Grant (A) | – | 57K | – | 396K | – | Jun 16, 2026 | Jun 18, 2026 | |||||||||
|
Campbell Shannon
· Director
Grant (A)
114K
|
Campbell Shannon | Director | Grant (A) | – | 114K | – | 114K | – | May 26, 2026 | May 27, 2026 | |||||||||
|
Vultaggio Vincent
· Officer
Sell
−$17K
|
Vultaggio Vincent | Officer | Sell | $2.42 | −7K | −$17K | 147K | – | Feb 10, 2026 | Feb 10, 2026 | |||||||||
|
Bruns Ingmar
· Officer
Sell
−$802
|
Bruns Ingmar | Officer | Sell | $2.39 | −335 | −$802 | 33K | – | Feb 9, 2026 | Feb 10, 2026 | |||||||||
|
Vultaggio Vincent
· Officer
Sell
−$8K
|
Vultaggio Vincent | Officer | Sell | $2.39 | −3K | −$8K | 153K | – | Feb 9, 2026 | Feb 10, 2026 | |||||||||
|
Eastland Julia Marie
· Director, Officer
Sell
−$2K
|
Eastland Julia Marie | Director, Officer | Sell | $2.39 | −889 | −$2K | 79K | – | Feb 9, 2026 | Feb 10, 2026 | |||||||||
|
Bruns Ingmar
· Officer
Sell
−$7K
|
Bruns Ingmar | Officer | Sell | $2.43 | −3K | −$7K | 34K | – | Feb 6, 2026 | Feb 10, 2026 | |||||||||
|
Vultaggio Vincent
· Officer
Sell
−$73K
|
Vultaggio Vincent | Officer | Sell | $2.43 | −30K | −$73K | 157K | – | Feb 6, 2026 | Feb 10, 2026 | |||||||||
|
Eastland Julia Marie
· Director, Officer
Sell
−$19K
|
Eastland Julia Marie | Director, Officer | Sell | $2.43 | −8K | −$19K | 80K | – | Feb 6, 2026 | Feb 10, 2026 | |||||||||
|
Vultaggio Vincent
· Officer
Sell
−$1K
|
Vultaggio Vincent | Officer | Sell | $2.52 | −556 | −$1K | 187K | – | Feb 3, 2026 | Feb 4, 2026 | |||||||||
|
Vultaggio Vincent
· Officer
Sell
−$6K
|
Vultaggio Vincent | Officer | Sell | $2.55 | −3K | −$6K | 187K | – | Feb 2, 2026 | Feb 4, 2026 | |||||||||
N
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91 reporting institutions disclosed ZNTL 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.