Among active 13F managers last quarter, 6 opened and 10 added, while 6 reduced; the largest holder to move was Renaissance Technologies LLC (+0.4%). Over the last 180 days, 3 insiders sold and none bought, a net -$1.7M in open-market trades.
The legs disagree, or only one of them leans.
71 tracked 13F filers disclose a position in ACU as of the latest SEC 13F filings, a combined $91.3M in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| # | Fund | Shares | Position value | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Capital Management Corp | 474K | $22.6M | ▼−5.3% Reduced · −27K sh | Q2 2026 | |
| 2 | BlackRock, Inc. | 180K | $8.6M | ▲+8.5% Added · +14K sh | Q2 2026 | |
| 3 | Dimensional Fund Advisors LP | 172K | $7.7M | ▼−0.1% Reduced · −148 sh | Q1 2026 | |
| 4 | Vanguard Capital Management LLC | 145K | $6.9M | ▲+2.9% Added · +4K sh | Q2 2026 | |
| 5 | Renaissance Technologies LLC | 117K | $5.2M | ▲+0.4% Added · +451 sh | Q1 2026 | |
| 6 | Bard Associates Inc | 108K | $5.2M | ▼−1.1% Reduced · −1K sh | Q2 2026 | |
| 7 | Geode Capital Management, LLC | 84K | $4.0M | ▲+9.0% Added · +7K sh | Q2 2026 | |
| 8 | Mork Capital Management, LLC | 70K | $3.3M | —Held | Q2 2026 | |
| 9 | American Century Companies Inc | 46K | $2.1M | —Held | Q1 2026 | |
| 10 | State Street Corp | 42K | $2.0M | ▼−1.6% Reduced · −672 sh | Q2 2026 | |
| 11 | Diamond Hill Capital Management, LLC (Investment Advisor) | 34K | $1.6M | ▲+80% Added · +15K sh | Q2 2026 | |
| 12 | Brown Brothers Harriman & Co | 33K | $1.6M | —Held | Q2 2026 | |
| 13 | Envestnet Asset Management Inc | 31K | $1.4M | ▼−12% Reduced · −4K sh | Q1 2026 | |
| 14 | Bank of New York Mellon Corp | 30K | $1.4M | ▼−3.1% Reduced · −972 sh | Q1 2026 | |
| 15 | AE Wealth Management LLC | 30K | $1.4M | ▼−12% Reduced · −4K sh | Q1 2026 | |
| 16 | First Manhattan Co. LLC. | 26K | $1.3M | ▼−4.7% Reduced · −1K sh | Q2 2026 | |
| 17 | Northern Trust Corp | 24K | $1.1M | ▲+3.1% Added · +732 sh | Q1 2026 | |
| 18 | Vanguard Portfolio Management LLC | 23K | $1.1M | ▲+20% Added · +4K sh | Q2 2026 | |
| 19 | Vanguard Fiduciary Trust Co | 22K | $1.1M | ▲+6.7% Added · +1K sh | Q2 2026 | |
| 20 | Bridgeway Capital Management, LLC | 22K | $1.0M | ▲+23% Added · +4K sh | Q2 2026 | |
| 21 | Nantahala Capital Management, LLC | 20K | $975K | —Held | Q2 2026 | |
| 22 | Goldman Sachs Group Inc | 20K | $909K | ▲+281% Added · +15K sh | Q1 2026 | |
| 23 | Royal Bank Of Canada | 19K | $865K | ▲+0.3% Added · +66 sh | Q1 2026 | |
| 24 | Indivisible Partners | 15K | $718K | ▲+0.9% Added · +133 sh | Q2 2026 | |
| 25 | UBS Group AG | 15K | $656K | ▲+13% Added · +2K sh | Q1 2026 |
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership. 1 value row is withheld because the reported units disagree with same-security peers; share counts are unchanged.
Last quarter, 6 funds opened a new position in ACU and 10 added to an existing one, while 6 reduced. Based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).
| Company | Co-held by | Their position there |
|---|---|---|
| Alphabet Inc-CL AGOOGL | 27 funds | $23.6B |
| Apple IncAAPL | 26 funds | $45.5B |
| Microsoft CorpMSFT | 26 funds | $37.5B |
| Meta Platforms Inc-Class AMETA | 26 funds | $13.9B |
| Nvidia CorpNVDA | 25 funds | $58.6B |
| Amazon.com IncAMZN | 25 funds | $25.9B |
| Broadcom IncAVGO | 25 funds | $19.2B |
| Tesla IncTSLA | 25 funds | $12.2B |
| Eli Lilly & CoLLY | 25 funds | $10.4B |
| Berkshire Hathaway Inc-CL BBRK/B | 25 funds | $6.6B |
| Bank Of America CorpBAC | 25 funds | $3.9B |
| TJX Companies IncTJX | 25 funds | $3.3B |
Ranked by how many of ACU's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in ACU.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Aug 18, 2026 | Olschan Brian S | President and COO, Director | Sell (S) 2 lots, same day | 7K | $449K |
| Aug 13, 2026 | Barker Brian | Director | Sell (S) | 4K | $231K |
| Aug 12, 2026 | Olschan Brian S | President and COO, Director | Sell (S) | 339 | $20K |
| Aug 11, 2026 | Olschan Brian S | President and COO, Director | Sell (S) | 159 | $9K |
| Aug 10, 2026 | Davidson Rex Lynn | Director | Sell (S) | 4K | $208K |
| Aug 10, 2026 | Olschan Brian S | President and COO, Director | Sell (S) | 5K | $303K |
| Aug 7, 2026 | Olschan Brian S | President and COO, Director | Sell (S) | 125 | $7K |
| Aug 5, 2026 | Olschan Brian S | President and COO, Director | Sell (S) | 4K | $222K |
| Aug 4, 2026 | Olschan Brian S | President and COO, Director | Sell (S) | 981 | $56K |
| Aug 3, 2026 | Olschan Brian S | President and COO, Director | Sell (S) | 1 | $58 |
| May 28, 2026 | Olschan Brian S | President and COO, Director | Sell (S) | 5K | $203K |
| Jun 3, 2025 | Olschan Brian S | President and COO, Director | Sell (S) | 1K | $40K |
One row per insider, day and transaction code; shares and value are summed across the lots. Every lot is on the full insider page and in the filing.
Where institutional funds (13F), corporate insiders (Form 4) and US House members (STOCK Act) are buying or selling the same name in the same window. Green is buying, red is selling.
Insiders and Congress: last 180 days. Funds: latest 13F, top 100 holders incl. passive
| Source | Buying | Selling | Net |
|---|---|---|---|
13F funds Top 100 holders by value, passive included; the hero counts active managers only | 23 | 22 | – |
Insiders Form 4 open-market | 0 | 3 | -$1.7M |
US House STOCK Act trades | 0 | 0 | $0 |
Capital Rotation reports where institutional capital disclosed rotating, as of the latest public SEC 13F filings. It is data, not investment advice, a recommendation, or a prediction. Filings lag about 45 days and cover long US equity positions only. Past disclosed flows do not indicate future prices. Do your own research; consult a licensed advisor.
Connected entities for ACU
This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/ACU/capital-change-brief"
Use Arkolith's capital_change_brief for ACU. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for ACU. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.