Among active 13F managers last quarter, 4 opened and 38 added, while 14 reduced; the largest holder to move was Janus Henderson Group Ltd. (+26%). Over the last 180 days, 4 insiders sold and none bought, a net -$1.1M in open-market trades.
The legs disagree, or only one of them leans.
242 tracked 13F filers disclose a position in COLL as of the latest SEC 13F filings, a combined $1.2B 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 | BlackRock, Inc. | 5.1M | $169.8M | ▲+0.7% Added · +34K sh | Q1 2026 | |
| 2 | Janus Henderson Group Ltd. | 1.8M | $60.4M | ▲+26% Added · +377K sh | Q1 2026 | |
| 3 | Fuller & Thaler Asset Management, Inc. | 1.6M | $59.1M | ▲+8.9% Added · +133K sh | Q2 2026 | |
| 4 | State Street Corp | 1.5M | $55.3M | ▲+7.3% Added · +104K sh | Q2 2026 | |
| 5 | Renaissance Technologies LLC | 1.5M | $48.6M | ▼−9.1% Reduced · −148K sh | Q1 2026 | |
| 6 | Eventide Asset Management, LLC | 1.4M | $47.1M | ▼−24% Reduced · −452K sh | Q1 2026 | |
| 7 | Massachusetts Financial Services Co | 1.4M | $45.2M | ▲+4.0% Added · +53K sh | Q1 2026 | |
| 8 | Vanguard Capital Management LLC | 1.3M | $44.1M | →New filer Inherited book · not a new buyer | Q1 2026 | |
| 9 | Principal Financial Group Inc | 1.3M | $42.8M | ▼−1.4% Reduced · −19K sh | Q1 2026 | |
| 10 | Rubric Capital Management LP | 1.3M | $42.3M | ▼−14% Reduced · −217K sh | Q1 2026 | |
| 11 | Geode Capital Management, LLC | 891K | $32.3M | ▲+8.7% Added · +71K sh | Q2 2026 | |
| 12 | Dimensional Fund Advisors LP | 833K | $27.6M | ▲+0.3% Added · +3K sh | Q1 2026 | |
| 13 | Marshall Wace, LLP | 749K | $24.8M | ▲+52% Added · +256K sh | Q1 2026 | |
| 14 | Arrowstreet Capital, Limited Partnership | 704K | $23.3M | ▲+29% Added · +160K sh | Q1 2026 | |
| 15 | Vanguard Portfolio Management LLC | 680K | $22.5M | →New filer Inherited book · not a new buyer | Q1 2026 | |
| 16 | Victory Capital Management Inc | 625K | $20.7M | ▲+37% Added · +168K sh | Q1 2026 | |
| 17 | Qube Research & Technologies Ltd | 622K | $20.6M | ▲+132% Added · +354K sh | Q1 2026 | |
| 18 | Two Sigma Investments, LP | 590K | $19.5M | ▲+61% Added · +224K sh | Q1 2026 | |
| 19 | Goldman Sachs Group Inc | 575K | $19.0M | ▼−11% Reduced · −72K sh | Q1 2026 | |
| 20 | D. E. Shaw & Co., Inc. | 531K | $17.6M | ▼−19% Reduced · −123K sh | Q1 2026 | |
| 21 | Morgan Stanley | 515K | $17.0M | ▼−25% Reduced · −169K sh | Q1 2026 | |
| 22 | Charles Schwab Investment Management Inc | 495K | $16.4M | ▲+11% Added · +48K sh | Q1 2026 | |
| 23 | American Century Companies Inc | 461K | $15.2M | ▲+122% Added · +254K sh | Q1 2026 | |
| 24 | Loomis Sayles & Co L P | 376K | $12.4M | ▲+13% Added · +43K sh | Q1 2026 | |
| 25 | Northern Trust Corp | 362K | $12.0M | ▲+2.3% Added · +8K 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, 4 funds opened a new position in COLL and 38 added to an existing one, while 14 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 | 121 funds | $329.2B |
| Alphabet Inc-CL AGOOGL | 121 funds | $136.8B |
| Meta Platforms Inc-Class AMETA | 121 funds | $96.0B |
| Microsoft CorpMSFT | 120 funds | $225.0B |
| Amazon.com IncAMZN | 120 funds | $170.2B |
| Eli Lilly & CoLLY | 120 funds | $64.3B |
| Micron Technology IncMU | 117 funds | $30.7B |
| Lam Research CorpLRCX | 117 funds | $29.8B |
| Apple IncAAPL | 116 funds | $242.8B |
| Broadcom IncAVGO | 116 funds | $131.8B |
| JPMorgan Chase & CoJPM | 114 funds | $48.0B |
| Costco Wholesale CorpCOST | 114 funds | $31.7B |
Ranked by how many of COLL's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in COLL.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| May 18, 2026 | Freund John Gordon | Director | Sell (S) | 20 | $681 |
| May 15, 2026 | Freund John Gordon | Director | Sell (S) | 4K | $143K |
| May 13, 2026 | Lurker Nancy | Director | Sell (S) | 5K | $162K |
| May 11, 2026 | Bohlin Garen G | Director | Sell (S) | 9K | $323K |
| Mar 18, 2026 | Dieter David | EVP & General Counsel | Sell (S) | 14K | $488K |
| Mar 9, 2026 | Dieter David | EVP & General Counsel | Sell (S) | 6K | $228K |
| Mar 3, 2026 | Dreyer Scott | EVP & Chief Commercial Officer | Sell (S) 2 lots, same day | 50K | $2.0M |
| Dec 8, 2025 | Dreyer Scott | EVP & Chief Commercial Officer | Sell (S) 2 lots, same day | 18K | $848K |
| Dec 5, 2025 | Balice-Gordon Rita J. | Director | Sell (S) | 4K | $172K |
| Nov 12, 2025 | Fallon John A. | Director | Sell (S) | 35K | $1.6M |
| Nov 6, 2025 | Tupper Colleen | EVP & Chief Financial Officer | Sell (S) 2 lots, same day | 30K | $1.2M |
| Aug 29, 2025 | Smith Thomas B | EVP and Chief Medical Officer | Sell (S) | 17K | $672K |
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 | 61 | 26 | – |
Insiders Form 4 open-market | 0 | 4 | -$1.1M |
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.
| Class | 13F holders | Value held |
|---|---|---|
| COLLthis pagecommon | 242 funds | $1.2B |
| COLL 2.875 02/15/29SDBCV | 12 funds | $283.8M |
Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.
Connected entities for COLL
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/COLL/capital-change-brief"
Use Arkolith's capital_change_brief for COLL. 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 COLL. Filings are public domain, sourced to SEC EDGAR.