AYI
Acuity Brands, Inc. · Industrials · Electrical Equipment & Parts
Momentum inputs (comparable managers):
holder breadth +6.2% ·
share flow +0.7% ·
net new positions +5.9%
· formula
Broad accumulation: rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2024
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 2 | 0 | 37.86K | $8.73M | n/a | −2 |
| Q2 2026 | 134 | -5 | 22.85M | $8.58B | +4 | −10 |
| Q1 2026 | 143 | +2 | 20.29M | $5.68B | +11 | −10 |
| Q4 2025 | 140 | +1 | 22.04M | $7.90B | +3 | −1 |
| Q3 2025 | 23 | 0 | 13.40M | $4.62B | n/a | −1 |
| Q2 2025 | 21 | 0 | 12.12M | $3.62B | +1 | −1 |
| Q1 2025 | 18 | +1 | 4.27M | $1.12B | +1 | n/a |
| Q4 2024 | 17 | +1 | 4.29M | $1.25B | +1 | n/a |
| Q3 2024 | 15 | 0 | 3.28M | $899.45M | n/a | n/a |
| Q2 2024 | 15 | n/a | 3.20M | $771.24M | n/a | n/a |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Wellington Management ✦ | 1.12M | +10.2% | $326.45M | 0.1% | ▲ Add | 3 | SEC ↗ ×7 |
| 2 | State Street Global Advisors ✦ (passive) | 988.76K | n/a | $288.85M | 0.0% | n/c | 1 | SEC ↗ |
| 3 | Geode Capital Management ✦ (passive) | 644.11K | +2.8% | $188.21M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 4 | AQR Capital Management ✦ | 455.43K | +22.3% | $133.04M | 0.2% | ▲ Add | 3 | SEC ↗ ×4 |
| 5 | Norges Bank ✦ (passive) | 377.35K | +3.0% | $110.24M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 6 | Arrowstreet Capital ✦ | 216.01K | +241.8% | $63.10M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 7 | Fisher Asset Management ✦ | 188.67K | +1.5% | $55.12M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 8 | Renaissance Technologies ✦ | 100.10K | +22.8% | $29.24M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 9 | Millennium Management ✦ | 80.11K | -66.2% | $23.40M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 10 | D. E. Shaw & Co. ✦ | 57.01K | -31.3% | $16.65M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 11 | T. Rowe Price ✦ | 32.84K | +19.7% | $9.60M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 12 | Gotham Asset Management ✦ | 15.81K | +38.5% | $4.62M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 13 | Two Sigma Investments ✦ | 10.29K | -84.8% | $3.01M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 14 | Markel Group ✦ | 3.00K | New | $876,390 | 0.0% | New | 1 | SEC ↗ |
| 15 | GAMCO Investors ✦ | 2.60K | 0.0% | $758,077 | 0.0% | Held | 3 | SEC ↗ |
| 16 | Bridgewater Associates ✦ | 2.38K | -93.3% | $696,146 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 17 | Citadel Advisors ✦ | 79 | -99.9% | $23,078 | 0.0% | ▼ Trim | 3 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| Markel Group | $876,390 | 0.0% |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 578 holders, 28.07M shares, $7.21B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
Director · 73 sh @ 302.32 · $22,069
Open-market sales (S)
Officer · 2.00K sh · $659,240
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology