Ticker · CUSIP 98985Y108
Holders (tracked)
11
Combined shares
1,526,620
Combined value
$39.44M
Last close
—
Quarter
2025Q4
Tracked holders · last 8 quarters
+2 vs previous quarter over the last 8.
SEC event timeline
17 events
- Ken Griffin (Citadel Advisors) added2026-02-17+48,493 shares · 2025Q413F
- D.E. Shaw & Co. added2026-02-17+96,863 shares · 2025Q413F
- Izzy Englander (Millennium Mgmt) trimmed2026-02-17−723,192 shares · 2025Q413F
- T. Rowe Price added2026-02-17+1,968 shares · 2025Q413F
- Wellington Management added2026-02-17+13,020 shares · 2025Q413F
- +30,324 shares · 2025Q413F
- AQR Capital Management trimmed2026-02-17−61,557 shares · 2025Q413F
- Renaissance Technologies trimmed2026-02-12−210,823 shares · 2025Q413F
- Ken Fisher (Fisher Asset Mgmt) trimmed2026-02-09−3,777 shares · 2025Q413F
- −34,293 shares · 2025Q313F
- Wellington Management trimmed2025-11-14−12,005 shares · 2025Q313F
- D.E. Shaw & Co. trimmed2025-11-14−128,368 shares · 2025Q313F
- AQR Capital Management trimmed2025-11-14−13,511 shares · 2025Q313F
- Izzy Englander (Millennium Mgmt) added2025-11-14+988,711 shares · 2025Q313F
- Norges Bank (Norway SWF) exited2025-11-13−201,700 shares · 2025Q313F
- Renaissance Technologies trimmed2025-11-13−101,600 shares · 2025Q313F
- Ken Fisher (Fisher Asset Mgmt) trimmed2025-11-12−5 shares · 2025Q313F
Insider activity
No insider transactions in the last 30 days.
Who moved on this name in 2025Q4
13F transactions reported for the latest quarter, grouped by direction.
New positions1
- Paul Tudor Jones (Tudor Investment)+30,324$798K
Added to4
- D.E. Shaw & Co.+96,863$2.6M
- Ken Griffin (Citadel Advisors)+48,493$1.3M
- Wellington Management+13,020$343K
- T. Rowe Price+1,968$52
Trimmed4
- Izzy Englander (Millennium Mgmt)−723,192$19.0M
- Renaissance Technologies−210,823$5.6M
- AQR Capital Management−61,557$1.6M
- Ken Fisher (Fisher Asset Mgmt)−3,777$99K
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q4 | 9 | $15.0M |
| 2023Q1 | 8 | $9.9M |
| 2023Q2 | 12 | $40.6M |
| 2023Q3 | 10 | $31.1M |
| 2023Q4 | 9 | $52.5M |
| 2024Q1 | 10 | $65.2M |
| 2024Q2 | 12 | $51.0M |
| 2024Q3 | 11 | $10.6M |
| 2024Q4 | 10 | $14.7M |
| 2025Q1 | 10 | $16.2M |
| 2025Q2 | 12 | $23.5M |
| 2025Q3 | 9 | $39.4M |
| 2025Q4 | 11 | $39.4M |
Who owns ZYME
11 super-investors · 2025Q4
Tracked stake
1.53M
shares
Combined value
$39M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New1Added6Trim4
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Izzy Englander Millennium Mgmt | 381.6K | $10M |
| 2 | Ken Griffin Citadel Advisors | 255.4K | $7M |
| 3 | D.E. Shaw & Co. | 223.8K | $6M |
| 4 | Renaissance Technologies | 220.9K | $6M |
| 5 | Wellington Management | 181.7K | $5M |
| 6 | AQR Capital Management | 91.1K | $2M |
| 7 | Ken Fisher Fisher Asset Mgmt | 68.2K | $2M |
| 8 | Ken Griffin Citadel Advisors | 30.6K | $806K |
| 9 | Paul Tudor Jones Tudor Investment | 30.3K | $798K |
| 10 | Ken Griffin Citadel Advisors | 14.3K | $377K |
| 11 | T. Rowe Price | 28.8K | $758 |
Recent moves
20 transactions
- −723,192 · 2025Q4
- +96,863 · 2025Q4
- +13,020 · 2025Q4
- +48,493 · 2025Q4
- +1,968 · 2025Q4
- +30,324 · 2025Q4
- −61,557 · 2025Q4
- −210,823 · 2025Q4
- −3,777 · 2025Q4
- −34,293 · 2025Q3
- −12,005 · 2025Q3
- TRIMD.E. Shaw & Co.−128,368 · 2025Q3
- −13,511 · 2025Q3
- +988,711 · 2025Q3
- −201,700 · 2025Q3
- −101,600 · 2025Q3
- −5 · 2025Q3
- +2,703 · 2025Q2
- −179,504 · 2025Q2
- +192,192 · 2025Q2
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