Among active 13F managers last quarter, 15 opened and 23 added, while 16 reduced; the largest holder to move was Marshall Wace, LLP (−0.1%). No open-market insider trades in the last 180 days.
Funds lean in and no leg opposes.
110 tracked 13F filers disclose a position in ISSC as of the latest SEC 13F filings, a combined $192.7M 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 | Marshall Wace, LLP | 753K | $15.5M | ▼−0.1% Reduced · −1K sh | Q1 2026 | |
| 2 | Vanguard Capital Management LLC | 626K | $12.8M | →New filer Inherited book · not a new buyer | Q1 2026 | |
| 3 | Morgan Stanley | 603K | $12.4M | ▼−10% Reduced · −68K sh | Q1 2026 | |
| 4 | Punch & Associates Investment Management, Inc. | 519K | $10.6M | ▼−13% Reduced · −77K sh | Q1 2026 | |
| 5 | Dimensional Fund Advisors LP | 368K | $7.6M | ▼−2.5% Reduced · −10K sh | Q1 2026 | |
| 6 | Geode Capital Management, LLC | 354K | $6.4M | ▲+142% Added · +208K sh | Q2 2026 | |
| 7 | Renaissance Technologies LLC | 303K | $6.2M | ▲+13% Added · +34K sh | Q1 2026 | |
| 8 | Citadel Advisors LLC | 299K | $5.4M | ▲+182% Added · +193K sh | Q2 2026 | |
| 9 | BlackRock, Inc. | 288K | $5.9M | ▼−16% Reduced · −56K sh | Q1 2026 | |
| 10 | Arrowstreet Capital, Limited Partnership | 276K | $5.7M | ▲+23% Added · +51K sh | Q1 2026 | |
| 11 | CenterBook Partners LP | 265K | $4.8M | ▲New +265K sh | Q2 2026 | |
| 12 | Roubaix Capital, LLC | 265K | $4.8M | ▲New +265K sh | Q2 2026 | |
| 13 | Millennium Management LLC | 249K | $5.1M | ▼−11% Reduced · −32K sh | Q1 2026 | |
| 14 | American Century Companies Inc | 228K | $4.7M | ▲11× Added · +207K sh | Q1 2026 | |
| 15 | WealthTrust Axiom LLC | 220K | $4.0M | ▲+6.8% Added · +14K sh | Q2 2026 | |
| 16 | Qube Research & Technologies Ltd | 212K | $4.4M | ▲+162% Added · +131K sh | Q1 2026 | |
| 17 | State Street Corp | 189K | $3.4M | ▲+223% Added · +131K sh | Q2 2026 | |
| 18 | Hennion & Walsh Asset Management, Inc. | 187K | $3.4M | ▲+30% Added · +44K sh | Q2 2026 | |
| 19 | Connor, Clark & Lunn Investment Management Ltd. | 168K | $3.0M | ▼−1.6% Reduced · −3K sh | Q2 2026 | |
| 20 | Isthmus Partners, LLC | 167K | $3.0M | ▲+1.1% Added · +2K sh | Q2 2026 | |
| 21 | Raymond James Financial Inc | 149K | $3.1M | ▼−8.7% Reduced · −14K sh | Q1 2026 | |
| 22 | Man Group plc | 142K | $2.6M | ▲+76% Added · +62K sh | Q2 2026 | |
| 23 | Trexquant Investment LP | 141K | $2.9M | ▲New +141K sh | Q1 2026 | |
| 24 | Gamco Investors, Inc. Et Al | 127K | $2.6M | —Held | Q1 2026 | |
| 25 | Algert Global LLC | 122K | $2.2M | ▼−47% Reduced · −109K sh | Q2 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.
Last quarter, 15 funds opened a new position in ISSC and 23 added to an existing one, while 16 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 |
|---|---|---|
| Nvidia CorpNVDA | 61 funds | $53.0B |
| Microsoft CorpMSFT | 59 funds | $38.2B |
| Amazon.com IncAMZN | 59 funds | $33.8B |
| Meta Platforms Inc-Class AMETA | 59 funds | $15.2B |
| Apple IncAAPL | 57 funds | $43.3B |
| Broadcom IncAVGO | 57 funds | $24.1B |
| Lam Research CorpLRCX | 57 funds | $10.0B |
| Eli Lilly & CoLLY | 57 funds | $9.7B |
| Chevron CorpCVX | 57 funds | $5.8B |
| Berkshire Hathaway Inc-CL BBRK/B | 57 funds | $5.8B |
| Alphabet Inc-CL AGOOGL | 56 funds | $27.4B |
| JPMorgan Chase & CoJPM | 56 funds | $7.8B |
Ranked by how many of ISSC's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in ISSC.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Jun 30, 2025 | Harborne Christopher | 10% Owner | Sell (S) | 145K | $2.0M |
| Jun 27, 2025 | Harborne Christopher | 10% Owner | Sell (S) 2 lots, same day | 72K | $992K |
| Jun 26, 2025 | Harborne Christopher | 10% Owner | Sell (S) | 60K | $788K |
| Jun 25, 2025 | Harborne Christopher | 10% Owner | Sell (S) | 91K | $1.2M |
| Jun 23, 2025 | Harborne Christopher | 10% Owner | Sell (S) | 89K | $1.1M |
| Jun 20, 2025 | Harborne Christopher | 10% Owner | Sell (S) | 32K | $391K |
| Jun 18, 2025 | Harborne Christopher | 10% Owner | Sell (S) | 17K | $211K |
| Jun 17, 2025 | Harborne Christopher | 10% Owner | Sell (S) | 22K | $279K |
| Jun 11, 2025 | Harborne Christopher | 10% Owner | Sell (S) | 5K | $60K |
| Jun 10, 2025 | Harborne Christopher | 10% Owner | Sell (S) | 438 | $5K |
| Jun 9, 2025 | Harborne Christopher | 10% Owner | Sell (S) | 64K | $749K |
| Jun 6, 2025 | Harborne Christopher | 10% Owner | Sell (S) | 35K | $417K |
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 | 37 | 30 | – |
Insiders Form 4 open-market | 0 | 0 | $0 |
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 ISSC
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/ISSC/capital-change-brief"
Use Arkolith's capital_change_brief for ISSC. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + the live filing stream, joined for ISSC. Filings are public domain, sourced to SEC EDGAR.