Security record · archived quarter
ATKR
Atkore Inc. · Industrials · Electrical Equipment & Parts
1Tracked holders
0Δ holders
8Shares held
$758Reported value
+0New positions
−0Exits
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 1 | 0 | 8 | $758 | n/a | n/a |
| Q2 2026 | 107 | +4 | 19.66M | $1.49B | +10 | −6 |
| Q1 2026 | 106 | 0 | 18.87M | $1.11B | +6 | −7 |
| Q4 2025 | 107 | +1 | 21.29M | $1.35B | +2 | n/a |
| Q3 2025 | 19 | 0 | 10.82M | $678.57M | n/a | −1 |
| Q2 2025 | 17 | +2 | 8.87M | $625.82M | +3 | −1 |
| Q1 2025 | 12 | -1 | 3.30M | $198.05M | +1 | −2 |
| Q4 2024 | 13 | 0 | 3.77M | $314.21M | n/a | n/a |
| Q3 2024 | 12 | 0 | 3.20M | $270.84M | +2 | −2 |
| Q2 2024 | 12 | n/a | 2.92M | $395.13M | n/a | n/a |
Who holds it · Q3 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Assetmark, Inc | 8 | +14.3% | $758 | 0.0% | ▲ Add | 3 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 300 holders, 32.09M shares, $1.82B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.
Aug 14
SC 13G/A: Gates Capital Management, Inc.
Aug 14
SC 13G: AMERICAN CENTURY INVESTMENT MANAGEMENT…
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q3 2026 ·
Methodology ·
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