Zhengye Biotechnology Holding
ZYBT
11 hedge funds and large institutions have $265K invested in Zhengye Biotechnology Holding in 2025 Q4 according to their latest regulatory filings, with 2 funds opening new positions, 4 increasing their positions, 3 reducing their positions, and 1 closing their positions.
100% more first-time investments, than exits
New positions opened: 2 | Existing positions closed: 1
33% more repeat investments, than reductions
Existing positions increased: 4 | Existing positions reduced: 3
10% more funds holding
Funds holding: 10 → 11 (+1)
0.15% more ownership
Funds ownership: 0.34% → 0.49% (+0.15%)
36% less capital invested
Capital invested by funds: $416K → $265K (-$151K)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
WG
Winton Group
London,
United Kingdom
|
+$92.5K |
| 2 |
XT
XTX Topco
George Town,
Cayman Islands
|
+$54.7K |
| 3 |
Citadel Advisors
Miami,
Florida
|
+$41.9K |
| 4 |
UBS Group
Zurich,
Switzerland
|
+$10.6K |
| 5 |
JP Morgan Chase
New York
|
+$1.01K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Millennium Management
New York
|
-$38.3K |
| 2 |
TRCT
Tower Research Capital (TRC)
New York
|
-$5K |
| 3 |
Invesco
Atlanta,
Georgia
|
-$3.91K |
| 4 |
Morgan Stanley
New York
|
-$891 |
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
|
WG
1
Winton Group
London,
United Kingdom
| $72.8K | +$92.5K | +41,750 | +194% |
|
|
XT
2
XTX Topco
George Town,
Cayman Islands
| $68.2K | +$54.7K | +24,697 | +71% |
|
|
3
Invesco
Atlanta,
Georgia
| $39.9K | -$3.91K | -1,763 | -5% |
|
|
4
Citadel Advisors
Miami,
Florida
| $35.2K | +$41.9K | +18,891 | +162% |
|
5
Geode Capital Management
Boston,
Massachusetts
| $33.4K | – | – | – |
|
|
6
UBS Group
Zurich,
Switzerland
| $10.5K | +$10.6K | +4,786 | +111% |
|
|
TRCT
7
Tower Research Capital (TRC)
New York
| $2.54K | -$5K | -2,255 | -51% |
|
|
8
Morgan Stanley
New York
| $1.85K | -$891 | -402 | -20% |
|
|
9
JP Morgan Chase
New York
| $526 | +$1.01K | +457 | New |
|
|
CIAM
10
Caitong International Asset Management
Hong Kong
| $1 | – | – | – |
|
|
11
Millennium Management
New York
| – | -$38.3K | -14,602 | Closed |
|
12
Royal Bank of Canada
Toronto,
Ontario, Canada
| – | +$849 | +383 | New |
|
ZYBT Hedge Fund Activity: Q4 2025 in Review
11 of the 8,245 institutional investors tracked by Wall St. Rank reported a position in Zhengye Biotechnology Holding (ZYBT) for Q4 2025, worth a combined $265K — down 36% from $416K a quarter earlier.
Buyers outnumbered sellers: 2 funds opened new ZYBT positions and 1 closed out — a net gain of 1 holder — while 4 added to existing stakes and 3 trimmed.
The largest buyer was Winton Group, adding an estimated $92.5K. The largest seller was Millennium Management, exiting entirely with an estimated $38.3K sold.
- 11 institutional investors held Zhengye Biotechnology Holding (ZYBT) as of Q4 2025, up from 10 in Q3 2025.
- Funds reported $265K of Zhengye Biotechnology Holding stock for Q4 2025, down 36% quarter-over-quarter.
- 2 funds opened new Zhengye Biotechnology Holding positions in Q4 2025 and 1 closed out, a net change of +1 holder.
- The largest Zhengye Biotechnology Holding buyer in Q4 2025 was Winton Group, an estimated $92.5K added.
- The largest Zhengye Biotechnology Holding seller in Q4 2025 was Millennium Management, an estimated $38.3K sold.
Based on aggregated 13F filings for Q4 2025.