Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in ACCO held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 7.6M | $22.7M | +3.2% | 8.188% | 0.00% |
| 2 | Allspring Global Investments Holdings, LLC | 7.7M | $22.6M | +0.9% | 8.365% | 0.04% |
| 3 | CAPITAL MANAGEMENT CORP /VA | 7.0M | $20.9M | +26.3% | 7.568% | 3.58% |
| 4 | DIMENSIONAL FUND ADVISORS LP | 4.4M | $13.3M | +1.8% | 4.809% | 0.00% |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 3.9M | $11.7M | — | 4.242% | 0.00% |
| 6 | AMERICAN CENTURY COMPANIES INC | 3.6M | $10.8M | +11.3% | 3.909% | 0.01% |
| 7 | GOLDMAN SACHS GROUP INC | 3.1M | $9.3M | +87.5% | 3.362% | 0.00% |
| 8 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 2.9M | $8.7M | -8.1% | 3.138% | 0.00% |
| 9 | AQR CAPITAL MANAGEMENT LLC | 2.4M | $7.2M | -9.7% | 2.610% | 0.00% |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | 2.2M | $6.7M | +3.0% | 2.424% | 0.00% |
| 11 | STATE STREET CORP | 2.0M | $6.0M | +5.2% | 2.150% | 0.00% |
| 12 | AMERIPRISE FINANCIAL INC | 1.6M | $4.7M | +39.8% | 1.697% | 0.00% |
| 13 | TWO SIGMA INVESTMENTS, LP | 1.4M | $4.3M | +114.7% | 1.555% | 0.00% |
| 14 | READYSTATE ASSET MANAGEMENT LP | 1.4M | $4.2M | -6.8% | 1.533% | 0.21% |
| 15 | VANGUARD PORTFOLIO MANAGEMENT LLC | 1.3M | $4.0M | — | 1.462% | 0.00% |
| 16 | BANK OF AMERICA CORP /DE/ | 979K | $2.9M | -1.1% | 1.061% | 0.00% |
| 17 | Bank of New York Mellon Corp | 952K | $2.9M | +27.7% | 1.032% | 0.00% |
| 18 | RENAISSANCE TECHNOLOGIES LLC | 895K | $2.7M | -31.9% | 0.970% | 0.00% |
| 19 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 835K | $2.5M | +15.3% | 0.905% | 0.05% |
| 20 | First Eagle Investment Management, LLC | 831K | $2.5M | -3.6% | 0.901% | 0.00% |
| 21 | MORGAN STANLEY | 766K | $2.3M | -11.4% | 0.831% | 0.00% |
| 22 | NORTHERN TRUST CORP | 736K | $2.2M | +3.1% | 0.798% | 0.00% |
| 23 | D. E. Shaw & Co., Inc. | 611K | $1.8M | -12.9% | 0.662% | 0.00% |
| 24 | VANGUARD FIDUCIARY TRUST CO | 566K | $1.7M | — | 0.614% | 0.00% |
| 25 | PRUDENTIAL FINANCIAL INC | 564K | $1.7M | -25.4% | 0.611% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in ACCO — a direct measure of their conviction.
Filings activity in ACCO during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 194 | 4.4% | 56.97% | 12.01 pp | $212M | 17% |
| Q4 2025 | 203 | +6.8% | 68.98% | 6.86 pp | $257M | 9.0% |
| Q3 2025 | 190 | 3.6% | 75.84% | +9.76 pp | $283M | +15% |
| Q2 2025 | 197 | 9.6% | 66.08% | 12.36 pp | $246M | 16% |
| Q1 2025 | 218 | 4.8% | 78.44% | 23.17 pp | $292M | 23% |
| Q4 2024 | 229 | +1.8% | 101.61% | 3.11 pp | $379M | 3.0% |
| Q3 2024 | 225 | +2.3% | 104.72% | +12.43 pp | $390M | +13% |
| Q2 2024 | 220 | — | 92.29% | — | $344M | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying ACCO stock.
Based on Q1 2026 13F filings, institutional ownership of ACCO Brands Corporation stands at 57.0%, held across 194 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of ACCO, with approximately 7,554,009 shares worth $0.02B as of Q1 2026.
Yes — 2 widely-followed marquee investors appear among the top 25 institutional holders of ACCO, including TWO SIGMA INVESTMENTS, LP, RENAISSANCE TECHNOLOGIES LLC.
Our composite Smart Money Score for ACCO is 39 out of 100 (Bearish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
30 institutions opened new positions in ACCO during Q1 2026, while 39 fully exited. 32 added to existing positions and 130 trimmed.
ACCO institutional ownership fell by 12.01 percentage points quarter-over-quarter, with a net change of -9 holders.
The top 10 institutions account for 63.1% of all reported 13F value in ACCO, and the top 25 account for 85.0%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
ACCO Brands Corporation (ACCO) Institutional Ownership