CTKB β€” CYTEK BIOSCIENCES INC

Ownership history in PDT Partners, LLC  Β·  10 quarters on record

This page tracks every 13F SEC filing in which PDT Partners, LLC reported a position in CYTEK BIOSCIENCES INC (CTKB). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price β€” sourced directly from SEC EDGAR 13F filings.

πŸ” Peak position
0.14% (2023 Q2)
πŸ“Š Avg. % of fund
0.05%
πŸ“… First filed
2022 Q1
πŸ“… Last filed
2025 Q4
⏱ Quarters held
10

Position Intelligence

PDT Partners, LLC Γ— CTKB AI Analytics

πŸ“‰ PDT Partners, LLC underperformed the S&P 500 by –37.8% annually on this CTKB position. Timing score: 38% (3/8 decisions correct). Average cost basis: $8.88. Maximum drawdown during holding period: –76.9%.

πŸ“ˆ Position Alpha vs SPY
-37.8%
annualised excess return

❌ Significantly underperformed the S&P 500 by 37.8% ann.
9 quarters analyzed

⏱️ Timing Score
38%

⚠️ Poor timing β€” buys often preceded drops, trims preceded rallies.
3 of 8 add/trim decisions correct

πŸ’° Entry Quality
$8.88
-43.1% vs current ($5.05)

Best entry: $4.01 (2025 Q1)  Β·  Worst: $10.78 (2022 Q1)

πŸ›‘οΈ Drawdown Resilience
–76.9%
max drawdown while held

πŸ’ͺ Held through 1 major drawdown (>20%). Strong conviction under pressure.

πŸ’ͺ Fund Conviction
62%
buy-side decisions

5 adds Β· 3 trims. Bought during 4 of 6 down-price quarters. πŸ“ˆ More buys than sells across the holding period.

πŸ“‘ Position Trajectory
β†’ Stable
last 4–5 quarters trend

βš–οΈ Portfolio weight has remained relatively stable β€” conviction maintained.
Currently 0.03% of portfolio

⚠ Based on quarterly 13F SEC filings and end-of-quarter closing prices. Timing score = accuracy of add/trim decisions vs next-quarter price direction. Alpha = mean quarterly excess return Γ— 4 (annualised). Not investment advice.

% of Fund (quarterly)    CTKB price (monthly, adj. close)
πŸ“‹ Quarterly Holdings History 10 quarters  β–Ύ
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q4 UNCHANGED 91,869 β€” 0% 0.03% $464K $5.05
2025 Q3 UNCHANGED 91,869 β€” 0% 0.02% $319K $3.47
2025 Q2 REDUCED 91,869 -42,196 -31.5% 0.02% $312K $3.40
2025 Q1 ADDED 134,065 +18,520 +16.0% 0.04% $538K $4.01
2023 Q2 ADDED 115,545 +34,254 +42.1% 0.14% $987K $8.54
2023 Q1 ADDED 81,291 +49,910 +159.0% 0.10% $747K $9.19
2022 Q4 REDUCED 31,381 -55 -0.2% 0.05% $320K $10.21
2022 Q3 REDUCED 31,436 -14,732 -31.9% 0.07% $463K $14.72
2022 Q2 ADDED 46,168 +26,733 +137.6% 0.04% $495K $10.73
2022 Q1 INITIATED 19,435 β€” β€” 0.02% $210K $10.78

🏒 Other funds also holding CTKB

As of 2025 Q4 β€” sorted by position size

Topline Capital Management, LLC 3.4% HHLR ADVISORS, LTD. 3Y 7Y 1.08% BROWN CAPITAL MANAGEMENT LLC 3Y 7Y 0.86% Numerai GP LLC 3Y 0.11% ROYCE & ASSOCIATES LP 3Y 7Y 0.09% Dynamic Technology Lab Private Ltd 3Y 7Y 0.05% Boston Partners 3Y 7Y 0.03% AXQ CAPITAL, LP 3Y 0.02% MILLENNIUM MANAGEMENT LLC 3Y 7Y 0.01% HRT FINANCIAL LP 3Y 7Y 0.01%
← Back to PDT Partners, LLC Holdings