ZYBT
Zhengye Biotechnology Holding LtdCompany with tickers: ZYBT
CIK
1975641
CUSIP
G989MS101
Shares Outstanding
47,391,376
13F Activity (30d)
9 filings
7 filers
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Holders: 8
Total Value: $113,170
Total Shares: 121,043
Institutional Ownership Trend
Holder Concentration
Across 8 13F filers · Δ vs Dec 31, 2025Top Holder
36.5%
+9.0 pts
Top 5
98.8%
+4.7 pts
Top 10
100.0%
+0.0 pts
HHI
2,730
Highly concentrated
+738
Quarterly Activity
vs Dec 31, 2025
New
0
Increased
2
Decreased
4
Sold Out
3
Unchanged
2
Holder count:
-3
Institutional value:
-57.3%
Shares held:
-47.5%
Top Buyers
vs Dec 31, 2025| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Mid Tower Research Capital LLC (TRC) | +2,705 | 4,912 | |
| Mega ROYAL BANK OF CANADA | +847 | 1,230 |
Top Sellers
vs Dec 31, 2025| Institution | Sold | Now Holds | Open |
|---|---|---|---|
| Mid WINTON GROUP Ltd | −29,908 | 33,389 | |
| Mid XTX Topco Ltd | −15,140 | 44,146 | |
| Mega MORGAN STANLEY | −1,346 | 261 | |
| Mega UBS Group AG | −1,079 | 8,036 |
Top New Positions
vs Dec 31, 2025No new positions this quarter.
Top Sold-Out Positions
vs Dec 31, 2025| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Mega Invesco Ltd. | 34,688 | $39,891 | |
| Mega CITADEL ADVISORS LLC | 30,576 | $35,162 | |
| Mega JPMORGAN CHASE & CO | 457 | $525 |
| Holder | Value (USD) | % of 13F | Shares | Type | Discretion | Filed | Open | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Mid XTX Topco Ltd | $41,276 | 36.47% | 44,146 | Shares | Defined | 2026-05-15 | ||||
| Mid WINTON GROUP Ltd | $31,218 | 27.59% | 33,389 | Shares | Sole | 2026-05-12 | ||||
| Mega GEODE CAPITAL MANAGEMENT, LLC | $27,178 | 24.02% | 29,068 | Shares | Defined | 2026-05-15 | ||||
| Mega UBS Group AG | $7,513 | 6.64% | 8,036 | Shares | Defined | 2026-05-05 | ||||
| Mid Tower Research Capital LLC (TRC) | $4,592 | 4.06% | 4,912 | Shares | Defined | 2026-05-15 | ||||
| Mega ROYAL BANK OF CANADA Bank | $1,150 | 1.02% | 1,230 | Shares | Defined | 2026-05-15 | ||||
| Mega MORGAN STANLEY | $243 | 0.21% | 261 | Shares | Defined | 2026-05-15 | ||||
| Small Caitong International Asset Management Co., Ltd | $0 | 0.00% | 1 | Shares | Sole | 2026-05-11 | ||||
| No holders match your search. | ||||||||||