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Of the 13 tracked institutions holding ATKR, 6 have a 3-year clone track record — 4 of them beat the S&P. Average holder's clone alpha: +2.9pt. It's a gauge of who owns the name, not just how many.
Among the 13 tracked institutional investors we monitor, ATKR (ATKORE INC) is held with a combined value of $557.43M across 7,953,619 shares. The largest holder is BlackRock, Inc. with a position worth $236.96M. 2 funds opened new positions in the most recent quarter. 6 funds increased their holdings. 5 funds reduced their position.
Total Institutional Value
$557.43M
Total Shares Held
7,953,619
Institutional Holders
13
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | BlackRock, Inc. | $236.96M | 0.00% | +18.6% |
| 2 | VANGUARD GROUP INC | $229.97M | 0.00% | +0.1% |
| 3 | STATE STREET CORP | $68.92M | 0.00% | +8.5% |
| 4 | TWO SIGMA ADVISERS, LP | $4.26M | 0.01% | +60.6% |
| 5 | AQR CAPITAL MANAGEMENT LLC | $3.84M | 0.00% | -0.8% |
| 6 | Point72 Asset Management, L.P. | $3.78M | 0.01% | New |
| 7 | PRICE T ROWE ASSOCIATES INC /MD/ | $3.46M | 0.00% | +17.7% |
| 8 | MILLENNIUM MANAGEMENT LLC | $1.81M | 0.00% | -39.2% |
| 9 | Bridgewater Associates, LP | $1.66M | 0.01% | New |
| 10 | FMR LLC | $1.53M | 0.00% | +100.6% |
| Member | Type | Date |
|---|---|---|
| Thomas R Carper | Sell | May 9, 2024 |
As of the latest SEC 13F filings, BlackRock, Inc. is the largest institutional holder of ATKR with a position worth $236.96M, representing 0.00% of their portfolio. In total, 13 institutional investors hold ATKR with a combined value of $557.43M.
In the most recent quarter, 2 funds opened a new position in ATKR. Additionally, 6 increased their holdings and 5 reduced their positions.
Institutional investors hold $557.43M worth of ATKR stock across 13 positions. The largest institutional holder is BlackRock, Inc. with $236.96M 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 ATKR, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their ATKR 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 |
SEC Schedule 13D (activist) and 13G (passive) filings for ATKR. Filed when an investor acquires 5%+ ownership.
Last Close
$94.96
2026-10-16
YTD
+47.4%
100% of 52-week range
