Cathie Wood sells $26.7M of Intellia Therapeutics Inc
It was the day's biggest move, and it came from ARKK. The rest of the day's trades, plus ARK's scorecard against the S&P 500.
Generated from ARK's own holdings data.
On 8 Oct 2026, Cathie Wood sold an estimated $26.7M of Intellia Therapeutics Inc (NTLA) across ARKK. It topped everything else ARK did that session.
Every other holding grew by about 20.3% that day as money came into the funds. This position shrank by 20% — the gap is what makes it a deliberate trade rather than cash being spread across the portfolio.
It is part of a pattern: over the last 30 days ARK is a net seller of Intellia Therapeutics Inc, $46.6M across 25 trades.
Everything ARK did on 8 Oct 2026
ARK made 23 real moves that day, once money flowing in and out of the funds is stripped out:
| Stock | Funds | Est. value |
|---|---|---|
| NTLA Intellia Therapeutics Inc | ARKK | −$26.7M |
| HOOD Robinhood Markets Inc | ARKK | −$16.6M |
| CRWV CoreWeave Inc | ARKK | +$12.6M |
| PSNL Personalis Inc | ARKG | −$12.0M |
| TER Teradyne Inc | ARKQ and ARKX | −$11.1M |
| KTOS Kratos Defense & Security | ARKK | +$8.8M |
The bigger picture: ARK's last 30 days
Over the last 30 days ARK's biggest net buys have been Nvidia Corp ($81.0M), Meta Platforms Inc ($75.9M), CoreWeave Inc ($53.9M). Meanwhile the funds have been trimming Advanced Micro Devices ($130.3M), 10X Genomics Inc ($79.4M), Twist Bioscience Corp ($49.1M).
Is it working?
This year ARKK is behind the market — +14.8% against +14.9% for the S&P 500.
The last 12 months tell a different story — ARKK -0.9% versus the index's +17.4%, a 18-point gap.
That five-year gap — 110 points — mostly comes down to timing. Five years ago ARKK was trading close to its all-time high of Feb 2021. It then fell 81% to its low in Dec 2022, and it is still 43% below that peak today. Any comparison that starts near the top of that boom looks brutal.
| To date | 1 month | YTD | 1 year | 5 years |
|---|---|---|---|---|
| ARKK | +2.4% | +14.8% | -0.9% | -20.3% |
| S&P 500 (SPY) | +1.2% | +14.9% | +17.4% | +89.4% |
| Nasdaq-100 (QQQ) | +5.5% | +23.6% | +25.8% | +114.9% |
How we work this out
ETFpeek is an independent research tool and is not affiliated with ARK Invest or Cathie Wood. Figures are estimates from public fund data, shown for information only — not financial advice. Past performance does not indicate future results.