231 tracked 13F filers disclose a position in KYMR as of the latest SEC 13F filings, a combined $7.5B 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 | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | FMR LLC | $974.5M | 11.7M | ▲+31% Added · +2.8M sh | Q1 2026 | |
| 2 | BAKER BROS. ADVISORS LP | $721.1M | 8.7M | —Held | Q1 2026 | |
| 3 | Avoro Capital Advisors LLC | $857.1M | 7.5M | —Held | Q2 2026 | |
| 4 | PRICE T ROWE ASSOCIATES INC /MD/ | $504.8M | 6.1M | ▼−1.6% Reduced · −98K sh | Q1 2026 | |
| 5 | BVF INC/IL | $458.3M | 5.5M | —Held | Q1 2026 | |
| 6 | T. Rowe Price Investment Management, Inc. | Withheld | 5.5M | ▲+768% Added · +4.8M sh | Q1 2026 | |
| 7 | BlackRock, Inc. | $421.5M | 5.1M | ▲+1.1% Added · +57K sh | Q1 2026 | |
| 8 | Siren, L.L.C. | $336.7M | 2.9M | ▼−7.9% Reduced · −251K sh | Q2 2026 | |
| 9 | VANGUARD CAPITAL MANAGEMENT LLC | $239.9M | 2.9M | →First observed position No prior filed position | Q1 2026 | |
| 10 | VANGUARD PORTFOLIO MANAGEMENT LLC | $239.4M | 2.9M | →First observed position No prior filed position | Q1 2026 | |
| 11 | Atlas Venture Life Science Advisors, LLC | $326.5M | 2.8M | ▼−38% Reduced · −1.7M sh | Q3 2026 | |
| 12 | STATE STREET CORP | $313.9M | 2.7M | ▲+15% Added · +347K sh | Q2 2026 | |
| 13 | GEODE CAPITAL MANAGEMENT, LLC | $208.3M | 1.8M | ▲+10% Added · +171K sh | Q2 2026 | |
| 14 | UBS Group AG | $85.3M | 1.0M | ▲+39% Added · +287K sh | Q1 2026 | |
| 15 | GOLDMAN SACHS GROUP INC | $74.0M | 888K | ▲+20% Added · +148K sh | Q1 2026 | |
| 16 | ALLIANCEBERNSTEIN L.P. | $69.1M | 888K | ▼−6.7% Reduced · −64K sh | Q1 2026 | |
| 17 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME | $73.0M | 876K | ▼−4.0% Reduced · −37K sh | Q1 2026 | |
| 18 | Holocene Advisors, LP | $69.7M | 837K | ▲+9.9% Added · +76K sh | Q1 2026 | |
| 19 | Merck & Co., Inc. | $88.5M | 772K | —Held | Q2 2026 | |
| 20 | Commodore Capital LP | $62.5M | 750K | —Held | Q1 2026 | |
| 21 | FRONTIER CAPITAL MANAGEMENT CO LLC | $85.0M | 741K | ▼−2.5% Reduced · −19K sh | Q2 2026 | |
| 22 | EVENTIDE ASSET MANAGEMENT, LLC | $52.2M | 627K | ▲+0.1% Added · +495 sh | Q1 2026 | |
| 23 | DIMENSIONAL FUND ADVISORS LP | $49.4M | 593K | ▼−5.0% Reduced · −31K sh | Q1 2026 | |
| 24 | DEERFIELD MANAGEMENT COMPANY, L.P. | $46.7M | 561K | —Held | Q1 2026 | |
| 25 | FEDERATED HERMES, INC. | $44.7M | 537K | ▼−30% Reduced · −227K 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, 2 funds opened a new position in KYMR and 19 added to an existing one, while 28 reduced and 0 exited entirely — 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 | Combined value |
|---|---|---|
| AMAZON.COM INCAMZN | 117 funds | $166.3B |
| NVIDIA CORPNVDA | 115 funds | $331.9B |
| ADVANCED MICRO DEVICESAMD | 115 funds | $32.8B |
| MICRON TECHNOLOGY INCMU | 114 funds | $31.1B |
| MICROSOFT CORPMSFT | 113 funds | $221.4B |
| BROADCOM INCAVGO | 113 funds | $132.0B |
| ELI LILLY & COLLY | 113 funds | $67.1B |
| APPLE INCAAPL | 112 funds | $244.1B |
| META PLATFORMS INC-CLASS AMETA | 112 funds | $93.8B |
| ALPHABET INC-CL AGOOGL | 111 funds | $134.9B |
| LAM RESEARCH CORPLRCX | 109 funds | $29.7B |
| INTUITIVE SURGICAL INCISRG | 109 funds | $22.5B |
Ranked by how many of KYMR's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Jul 7, 2026 | Mainolfi Nello | Chief Executive Officer, Director | Sell (S) | 50K | $6.0M |
| Jul 1, 2026 | Goodman Noah | Chief Business Officer | Sell (S) | 3K | $387K |
| Jul 1, 2026 | Mainolfi Nello | Chief Executive Officer, Director | Sell (S) | 2K | $212K |
| Jul 1, 2026 | Mainolfi Nello | Chief Executive Officer, Director | Sell (S) | 7K | $755K |
| Jul 1, 2026 | Mainolfi Nello | Chief Executive Officer, Director | Sell (S) | 24K | $2.8M |
| Jul 1, 2026 | Mainolfi Nello | Chief Executive Officer, Director | Sell (S) | 44K | $5.1M |
| Jul 1, 2026 | Mainolfi Nello | Chief Executive Officer, Director | Sell (S) | 3K | $389K |
| Jun 30, 2026 | Jacobs Bruce N. | Chief Financial Officer | Sell (S) | 2K | $166K |
| Jun 30, 2026 | Jacobs Bruce N. | Chief Financial Officer | Sell (S) | 2K | $190K |
| Jun 30, 2026 | Jacobs Bruce N. | Chief Financial Officer | Sell (S) | 1K | $124K |
| Jun 30, 2026 | Jacobs Bruce N. | Chief Financial Officer | Sell (S) | 4K | $469K |
| Jun 30, 2026 | Jacobs Bruce N. | Chief Financial Officer | Sell (S) | 51K | $5.9M |
Connected entities for KYMR
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/KYMR/capital-change-brief"
Use Arkolith's capital_change_brief for KYMR. 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 KYMR. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.