82 tracked 13F filers disclose a position in KPTI as of the latest SEC 13F filings, a combined $128.4M 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 | Commodore Capital LP | $10.9M | 1.9M | ▲New +1.9M sh | Q1 2026 | |
| 2 | RA CAPITAL MANAGEMENT, L.P. | $10.7M | 1.9M | ▲New +1.9M sh | Q1 2026 | |
| 3 | ADAGE CAPITAL PARTNERS GP, L.L.C. | $10.1M | 1.8M | ▲+329% Added · +1.4M sh | Q1 2026 | |
| 4 | T. Rowe Price Investment Management, Inc. | Withheld | 1.5M | ▲+3.4% Added · +51K sh | Q1 2026 | |
| 5 | ACORN CAPITAL ADVISORS, LLC | $14.8M | 1.5M | ▲+427% Added · +1.2M sh | Q2 2026 | |
| 6 | GOLDMAN SACHS GROUP INC | $5.3M | 948K | ▲New +948K sh | Q1 2026 | |
| 7 | Catalio Capital Management, LP | $9.2M | 941K | ▲+4.8% Added · +43K sh | Q2 2026 | |
| 8 | VANGUARD CAPITAL MANAGEMENT LLC | $4.1M | 740K | →First observed position No prior filed position | Q1 2026 | |
| 9 | Ikarian Capital, LLC | $4.1M | 733K | ▲+35% Added · +189K sh | Q1 2026 | |
| 10 | Kalehua Capital Management LLC | $6.7M | 686K | ▲New +686K sh | Q2 2026 | |
| 11 | GEODE CAPITAL MANAGEMENT, LLC | $5.2M | 531K | ▲+158% Added · +325K sh | Q2 2026 | |
| 12 | Ghisallo Capital Management LLC | $4.9M | 500K | ▲New +500K sh | Q2 2026 | |
| 13 | Affinity Asset Advisors, LLC | $2.8M | 500K | ▼−44% Reduced · −390K sh | Q1 2026 | |
| 14 | Avidity Partners Management LP | $2.6M | 464K | ▲+245% Added · +329K sh | Q1 2026 | |
| 15 | Soleus Capital Management, L.P. | $4.3M | 440K | —Held | Q2 2026 | |
| 16 | MILLENNIUM MANAGEMENT LLC | $2.3M | 421K | ▲New +421K sh | Q1 2026 | |
| 17 | STATE STREET CORP | $3.2M | 326K | ▲+304% Added · +245K sh | Q2 2026 | |
| 18 | Boxer Capital Management, LLC | $1.7M | 303K | ▲+20% Added · +50K sh | Q1 2026 | |
| 19 | DAVIDSON KEMPNER CAPITAL MANAGEMENT LP | $1.7M | 300K | ▼−3.2% Reduced · −10K sh | Q1 2026 | |
| 20 | SILVERARC CAPITAL MANAGEMENT, LLC | $2.9M | 297K | ▲New +297K sh | Q2 2026 | |
| 21 | Eversept Partners, LP | $2.7M | 276K | —Held | Q2 2026 | |
| 22 | Jump Financial, LLC | $1.5M | 262K | ▲+387% Added · +208K sh | Q1 2026 | |
| 23 | Trexquant Investment LP | $1.4M | 258K | ▲+518% Added · +216K sh | Q1 2026 | |
| 24 | BlackRock, Inc. | $1.4M | 245K | ▼−1.1% Reduced · −3K sh | Q1 2026 | |
| 25 | BOOTHBAY FUND MANAGEMENT, LLC | $1.2M | 214K | ▲+48% Added · +69K 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, 16 funds opened a new position in KPTI and 18 added to an existing one, while 8 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 |
|---|---|---|
| ELI LILLY & COLLY | 33 funds | $15.4B |
| UNITEDHEALTH GROUP INCUNH | 32 funds | $7.9B |
| NVIDIA CORPNVDA | 31 funds | $79.2B |
| MICROSOFT CORPMSFT | 30 funds | $50.4B |
| AMAZON.COM INCAMZN | 30 funds | $34.8B |
| ORACLE CORPORCL | 30 funds | $3.7B |
| BRISTOL-MYERS SQUIBB COBMY | 30 funds | $2.2B |
| REVOLUTION MEDICINES INCRVMD | 30 funds | $1.3B |
| META PLATFORMS INC-CLASS AMETA | 29 funds | $23.7B |
| VISA INC-CLASS A SHARESV | 29 funds | $14.2B |
| JPMORGAN CHASE & COJPM | 29 funds | $11.0B |
| GENERAL ELECTRICGE | 29 funds | $7.7B |
Ranked by how many of KPTI's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Sep 1, 2026 | Abate Kristin | Chief Accounting Officer | Sell (S) | 19 | $38 |
| Jul 28, 2026 | Poulton Stuart | EVP, Chief Development Officer | Sell (S) | 189 | $1K |
| May 14, 2026 | Cheng Sohanya Roshan | EVP & Chief Commercial Officer | Sell (S) | 324 | $3K |
| May 14, 2026 | Abate Kristin | Chief Accounting Officer | Sell (S) | 53 | $504 |
| May 14, 2026 | Paulson Richard A. | President and CEO, Director | Sell (S) | 2K | $21K |
| May 14, 2026 | Mano Michael | EVP, CLO&Secretary | Sell (S) | 266 | $3K |
| May 14, 2026 | Rangwala Reshma | EVP & Chief Medical Officer | Sell (S) | 408 | $4K |
| May 14, 2026 | Poulton Stuart | EVP, Chief Development Officer | Sell (S) | 403 | $4K |
| Apr 21, 2026 | Rangwala Reshma | EVP & Chief Medical Officer | Sell (S) | 449 | $4K |
| Mar 2, 2026 | Paulson Richard A. | President and CEO, Director | Sell (S) | 12K | $116K |
| Mar 2, 2026 | Rangwala Reshma | EVP & Chief Medical Officer | Sell (S) | 5K | $48K |
| Mar 2, 2026 | Mano Michael | EVP, CLO&Secretary | Sell (S) | 4K | $33K |
| Class | 13F holders | Value held |
|---|---|---|
| KPTIthis pageStock | 82 funds | $128.4M |
| KPTIEURCOM | 1 funds | $420K |
Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.
Connected entities for KPTI
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/KPTI/capital-change-brief"
Use Arkolith's capital_change_brief for KPTI. 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 KPTI. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.