AI summary pending
View Full Filing (SEC EDGAR)Zymeworks Inc
$25.03-2.8%
+$15.4M
Net Activity
-1.78% total shares
Institutions Holding
204
Popularity Rank
#2963
Avg Weight
0.24%
Total Value
$1.8B
Market Cap
$1.9B
204 institutions currently hold ZYME, with 88 net buyers and 108 net sellers this quarter.
Institutional Moves (Q2 2026)
Neutral
Based on recent trading activity
Net Selling Institutions
108
Net Buying Institutions
88
Top 5 by Value
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Across its top 20 institutional holders, ZYME's holder base skews toward low-concentration, low-turnover investors on average (avg. concentration score 15/100, avg. turnover score 44/100).
ZYME ranks #2963 out of 37696 tracked stocks by institutional interest — one of the most closely watched names in our coverage.
ZYME is a top-conviction position for EcoR1 Capital, LLC — at 29.2% of their entire disclosed 13F portfolio, it's one of their largest single bets, not just a passing allocation.
Assenagon Asset Management S.A. has added to its ZYME position for two straight quarters, increasing it by $21.7M to reach $39.9M today.
ZYME is down 2.8% today, but institutions show net buying of $15.4M this quarter — a divergence between today's price move and the underlying institutional flow.
ZYME reported a net loss of $150.0M over the trailing twelve months.
+$167.2M
Total Buy Value
$171.9M
Total Sell Value
88
Net Buyers
108
Net Sellers
ZYME
Q2 2026
Top 5 Institutional Movers
+$25.3M
+$21.5M
+$14.5M
ZYME does not currently have enough recent insider (Form 4) trading activity to compute a convergence signal against its 13F institutional flows.
13F data as of 2026-09-30 quarterly filings. Note: many large institutions file close to the 45-day post-quarter deadline, so early-quarter flow figures can shift substantially as more filings arrive.
1
Filings (90d)
$349K
Total Est. Value
14K shares
Planned Shares
| Filer | Filing Date | Est. Value |
|---|---|---|
| Adam Schayowitz | 2026-10-09 | $349K |
Form 144 is a planned sale notice, not an executed transaction. Form 144 Tracker。
No Schedule 13D/13G filings for this ticker
3
Filings (14d)
AI summary pending
View Full Filing (SEC EDGAR)On August 25, 2026, Zymeworks issued a press release announcing that its partner Jazz Pharmaceuticals received U.S. FDA approval for two treatment regimens containing Ziihera® (zanidatamab-hrii) as first-line therapy for adults with unresectable locally advanced or metastatic HER2-positive gastroesophageal adenocarcinoma (GEA). One regimen pairs Ziihera with Tevimbra® plus fluoropyrimidine- and platinum-based chemotherapy for patients whose tumors are HER2 IHC 3+ or IHC 2+/ISH+, while the other combines Ziihera with chemotherapy alone for the HER2 IHC 3+ subgroup. The news was disclosed under Regulation FD (Item 7.01), with the press release furnished as Exhibit 99.1.
View Full Filing (SEC EDGAR)AI summary pending
View Full Filing (SEC EDGAR)98985Y108
The most-added stocks by 13F institutions this quarter
Institutions Holding
6,278
Total reported value
$2.2T
3254 13F institutions increased their position this quarter
Institutions Holding
6,025
Total reported value
$3.6T
3054 13F institutions increased their position this quarter
Institutions Holding
6,188
Total reported value
$1.8T
2995 13F institutions increased their position this quarter
The most widely held stocks tracked across all 13F institutions
Institutions Holding
4,610
Total reported value
$529.1B
Held by 4610 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,442
Total reported value
$354.7B
Held by 4442 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,353
Total reported value
$864.4B
Held by 4353 institutions — one of the most-tracked stocks on AlphaSMO
Access ZYME's institutional ownership data programmatically:
REST API
curl https://alphasmo.com/api/v1/market/stock/ZYMECLI
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