Among active 13F managers last quarter, 3 opened and 1 added, while none reduced or exited; the largest holder to move was Citadel Advisors LLC (new position). No open-market insider trades in the last 180 days.
Funds lean in and no leg opposes.
15 tracked 13F filers disclose a position in GCTK as of the latest SEC 13F filings, a combined $65K 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 | Citadel Advisors LLC | 80K | $25K | ▲New +80K sh | Q2 2026 | |
| 2 | Ikarian Capital, LLC | 46K | $15K | —Held | Q2 2026 | |
| 3 | Geode Capital Management, LLC | 34K | $11K | ▼−27% Reduced · −13K sh | Q2 2026 | |
| 4 | Granite Islands Private Wealth, LLC | 16K | $5K | ▲New +16K sh | Q2 2026 | |
| 5 | Boothbay Fund Management, LLC | 14K | $4K | —Held | Q2 2026 | |
| 6 | Alerus Financial Na | 4K | $1K | —Held | Q2 2026 | |
| 7 | Tower Research Capital LLC (TRC) | 3K | $2K | ▲+710% Added · +3K sh | Q1 2026 | |
| 8 | PlanVest Financial, Inc | 1K | $319 | ▲New +1K sh | Q2 2026 | |
| 9 | UBS Group AG | 702 | $456 | ▲+490% Added · +583 sh | Q1 2026 | |
| 10 | Tradewinds Capital Management, LLC | 50 | $16 | ▲New +50 sh | Q2 2026 | |
| 11 | NFSG Corp | 34 | $11 | —Held | Q2 2026 | |
| 12 | SBI Securities Co., Ltd. | 9 | $3 | —Held | Q2 2026 | |
| 13 | Osaic Holdings, Inc. | 2 | $1 | ▲+100% Added · +1 sh | Q1 2026 | |
| 14 | Morgan Stanley | 1 | $1 | —Held | Q1 2026 | |
| 15 | Royal Bank Of Canada | 1 | $0 | ▲New +1 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.
Last quarter, 3 funds opened a new position in GCTK and 1 added to an existing one, while none reduced or exited. 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 | 8 funds | $3.1B |
| Amazon.com IncAMZN | 8 funds | $2.8B |
| Apple IncAAPL | 8 funds | $2.5B |
| Microsoft CorpMSFT | 8 funds | $1.6B |
| Alphabet Inc-CL AGOOGL | 8 funds | $1.3B |
| Broadcom IncAVGO | 8 funds | $1.2B |
| Warner Bros Discovery IncWBD | 8 funds | $1.2B |
| Eli Lilly & CoLLY | 8 funds | $1.2B |
| Alphabet Inc-CL CGOOG | 8 funds | $1.0B |
| Advanced Micro DevicesAMD | 8 funds | $1.0B |
| Micron Technology IncMU | 8 funds | $969.4M |
| Applied Materials IncAMAT | 8 funds | $837.0M |
Ranked by how many of GCTK's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in GCTK.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Apr 22, 2024 | Sycoff Drew | Director, 10% Owner | Buy (P) | 183K | $230K |
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 | 3 | 1 | – |
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 GCTK
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/GCTK/capital-change-brief"
Use Arkolith's capital_change_brief for GCTK. 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 GCTK. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.