CTKB
Cytek Biosciences, Inc.Price
Daily candles with volume. Pins mark insider trades, rating changes, 13F stakes, reports, catalysts and short-interest jumps.
Signal stack
Where each data set points today.
- InsidersNO TRADES
No open-market buys or sells since May 18. Recent filings are awards, exercises and tax withholding.
- InstitutionsMIXED
Q2 2026: 20 added (0 new), 20 trimmed or exited.
- Short sellersCOVERING
Short interest −15.4% to 4.41M shares. 2.7 days to cover, ≈3.4% of shares.
- TrendUPTREND
15% above its 50-day average.
Who's buying
13F· Q2 2026| Fund | Move | Value |
|---|---|---|
| BlackRock, Inc. | TRIM | $42.4M |
| MILLENNIUM MANAGEMENT LLC | ADD | $41.4M |
| Boston Partners | ADD | $33.9M |
| STATE STREET CORP | TRIM | $11.4M |
| ROYCE & ASSOCIATES LP | ADD | $9.2M |
| BANK OF AMERICA CORP /DE/ | ADD | $5.8M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | TRIM | $5.1M |
| HRT FINANCIAL LP | DOUBLED | $4.4M |
Quarterly 13F filings are due 45 days after each quarter ends.
The Street
last action May 2026Price is inside the target range. Median implies +0%.Targets as of Oct 28, 2026.
| Date | Firm | Rating |
|---|---|---|
| May 13, 2026 | Stephens & Co. MAINTAIN | Overweight |
| May 12, 2026 | Morgan Stanley MAINTAIN | Equal-Weight |
Insider ledger
Form 4| Date | Insider | Type | Value |
|---|---|---|---|
| Aug 18, 2026 | Yan Ming CHIEF TECHNOLOGY OFFICER | TAX W/H | $6.3K |
| Aug 18, 2026 | Yan Ming CHIEF TECHNOLOGY OFFICER | EXERCISE | 14,220 sh |
| Aug 18, 2026 | Yan Ming CHIEF TECHNOLOGY OFFICER | EXERCISE | 5,525 sh |
| Aug 18, 2026 | Yan Ming CHIEF TECHNOLOGY OFFICER | TAX W/H | $8.3K |
| Aug 18, 2026 | Yan Ming CHIEF TECHNOLOGY OFFICER | TAX W/H | $16.2K |
| Aug 18, 2026 | Yan Ming CHIEF TECHNOLOGY OFFICER | EXERCISE | 6,162 sh |
| Aug 18, 2026 | Yan Ming CHIEF TECHNOLOGY OFFICER | TAX W/H | $7.0K |
| Aug 18, 2026 | Yan Ming CHIEF TECHNOLOGY OFFICER | EXERCISE | 7,363 sh |
Earnings setup
EstimatesRevision history: 🔒 Fresh data, subscribers only
| Period | EPS est. | Range | 30D rev. | Revenue |
|---|---|---|---|---|
| Current Q | 🔒 Fresh data, subscribers only | |||
| Next Q | -$0.02 | -$0.04–$0.00 | +0.0% | $63.6M |
| Current FY | 🔒 Fresh data, subscribers only | |||
| Next FY | -$0.25 | -$0.32–-$0.19 | +0.0% | $222.8M |
Short side
FINRA· Oct 15, 2026SecBot reports
8 filings · 0 bullish · 2 bearish · 1 mixed · 5 neutral- NEUTRAL PRESS-RELEASEOct 21, 2026
Cytek Biosciences, Inc. announced it will report its Q3 2026 results on November 4, 2026.
- MIXED INST-CLUSTERSep 22, 2026
In Q2 2026, institutional activity in Cytek Biosciences (CTKB) was sharply mixed: 20 buyers added…
The divergence between quant buyers (Millennium, D.E. Shaw, Susquehanna) and mega-passive sellers (BlackRock, Vanguard, Morgan Stanley) suggests a tactical long thesis is being tested against…
- BEARISH 8-KAug 24, 2026
Cytek disclosed a jury verdict in a patent infringement case brought by Beckman Coulter. The jury…
The $56.11M damages award is material relative to Cytek's $625M market cap, creating a significant overhang. Monitor for post-verdict motions and the company's decision to appeal; a successful…
- NEUTRAL 8-KJun 25, 2026
Chief Legal Officer and Corporate Secretary Valerie Barnett is departing Cytek Biosciences…
Monitor for the appointment of a successor Chief Legal Officer. The routine nature of the departure and clean separation language suggest limited near-term operational disruption.
All CTKB filing & press-release reports (8)
- PRESS-RELEASE reportOct 21, 2026
- INST-CLUSTER reportSep 22, 2026
- 8-K reportAug 24, 2026
- 8-K reportJun 25, 2026
- 3 reportJun 12, 2026
- INST-CLUSTER reportJun 11, 2026
- 8-K reportJun 2, 2026
- DEFA14A reportApr 28, 2026