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Of the 10 tracked institutions holding ZD, 4 have a 3-year clone track record — 4 of them beat the S&P. Average holder's clone alpha: +4.1pt. It's a gauge of who owns the name, not just how many.
Among the 10 tracked institutional investors we monitor, ZD (ZIFF DAVIS INC) is held with a combined value of $560.34M across 12,165,862 shares. The largest holder is BlackRock, Inc. with a position worth $302.22M. MILLENNIUM MANAGEMENT LLC opened a new position in the most recent quarter. 2 funds increased their holdings. 7 funds reduced their position.
Total Institutional Value
$560.34M
Total Shares Held
12,165,862
Institutional Holders
10
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | BlackRock, Inc. | $302.22M | 0.00% | -6.0% |
| 2 | VANGUARD GROUP INC | $156.47M | 0.00% | -3.9% |
| 3 | STATE STREET CORP | $84.70M | 0.00% | -3.8% |
| 4 | CITADEL ADVISORS LLC | $6.42M | 0.00% | +69.1% |
| 5 | AQR CAPITAL MANAGEMENT LLC | $3.48M | 0.00% | -78.8% |
| 6 | PRICE T ROWE ASSOCIATES INC /MD/ | $2.92M | 0.00% | +7.2% |
| 7 | MILLENNIUM MANAGEMENT LLC | $2.53M | 0.00% | New |
| 8 | Gotham Asset Management, LLC | $979.53K | 0.00% | -44.6% |
| 9 | FMR LLC | $348.06K | 0.00% | -12.7% |
| 10 | TWO SIGMA ADVISERS, LP | $274.17K | 0.00% | -26.4% |
As of the latest SEC 13F filings, BlackRock, Inc. is the largest institutional holder of ZD with a position worth $302.22M, representing 0.00% of their portfolio. In total, 10 institutional investors hold ZD with a combined value of $560.34M.
In the most recent quarter, 1 fund opened a new position in ZD. Additionally, 2 increased their holdings and 7 reduced their positions.
Institutional investors hold $560.34M worth of ZD stock across 10 positions. The largest institutional holder is BlackRock, Inc. with $302.22M 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 ZD, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their ZD 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 →
| 2026-09-08 |
| 4.9% | 2026-08-14 |
| 9.7% | 2026-08-13 |
SEC Schedule 13D (activist) and 13G (passive) filings for ZD. Filed when an investor acquires 5%+ ownership.
Last Close
$57.03
2026-10-21
YTD
+67.8%
93% of 52-week range
