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Of the 9 tracked institutions holding PSNL, 4 have a 3-year clone track record — 3 of them beat the S&P. Average holder's clone alpha: +3.0pt. It's a gauge of who owns the name, not just how many.
Among the 9 tracked institutional investors we monitor, PSNL (Personalis Inc) is held with a combined value of $261.89M across 20,864,601 shares. The largest holder is ARK Investment Management LLC with a position worth $110.84M (0.72% of their portfolio). CITADEL ADVISORS LLC opened a new position in the most recent quarter. 5 funds increased their holdings. 3 funds reduced their position.
Total Institutional Value
$261.89M
Total Shares Held
20,864,601
Institutional Holders
9
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | ARK Investment Management LLC | $110.84M | 0.72% | +4.1% |
| 2 | BlackRock, Inc. | $94.91M | 0.00% | +31.4% |
| 3 | VANGUARD GROUP INC | $25.90M | 0.00% | +8.2% |
| 4 | STATE STREET CORP | $19.93M | 0.00% | +31.1% |
| 5 | MILLENNIUM MANAGEMENT LLC | $6.03M | 0.00% | +7.4% |
| 6 | PRICE T ROWE ASSOCIATES INC /MD/ | $2.13M | 0.00% | -90.4% |
| 7 | CITADEL ADVISORS LLC | $1.94M | 0.00% | New |
| 8 | AQR CAPITAL MANAGEMENT LLC | $158.40K | 0.00% | -32.1% |
| 9 | FMR LLC | $54.67K | 0.00% | -93.5% |
As of the latest SEC 13F filings, ARK Investment Management LLC is the largest institutional holder of PSNL with a position worth $110.84M, representing 0.72% of their portfolio. In total, 9 institutional investors hold PSNL with a combined value of $261.89M.
In the most recent quarter, 1 fund opened a new position in PSNL. Additionally, 5 increased their holdings and 3 reduced their positions.
Institutional investors hold $261.89M worth of PSNL stock across 9 positions. The largest institutional holder is ARK Investment Management LLC with $110.84M in holdings.
A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For PSNL, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their PSNL positions.
Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →
| 2026-08-14 |
| 5.9% | 2026-07-29 |
SEC Schedule 13D (activist) and 13G (passive) filings for PSNL. Filed when an investor acquires 5%+ ownership.
Last Close
$15.90
2026-10-21
YTD
+102.5%
81% of 52-week range
