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/PLMR/capital-change-brief"
Use Arkolith's capital_change_brief for PLMR. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | $524.0M | 4.4M | ▼−0.4% Reduced · −18K sh | Q1 2026 | |
| 2 | VANGUARD PORTFOLIO MANAGEMENT LLC | $145.7M | 1.2M | ▲New +1.2M sh | Q1 2026 | |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | $143.2M | 1.2M | ▲New +1.2M sh | Q1 2026 | |
| 4 | STATE STREET CORP | $126.9M | 1.1M | ▲+0.1% Added · +938 sh | Q1 2026 | |
| 5 | JANUS HENDERSON GROUP PLC | $111.7M | 934K | ▲+17% Added · +138K sh | Q1 2026 | |
| 6 | WESTFIELD CAPITAL MANAGEMENT CO LP | $102.1M | 854K | ▲+1.6% Added · +14K sh | Q1 2026 | |
| 7 | Sumitomo Mitsui Trust Group, Inc. | $85.6M | 716K | ▼−8.8% Reduced · −69K sh | Q1 2026 | |
| 8 | Stephens Investment Management Group LLC | $85.4M | 715K | ▲+3.0% Added · +21K sh | Q1 2026 | |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | $81.6M | 683K | ▲+3.2% Added · +21K sh | Q1 2026 | |
| 10 | DIMENSIONAL FUND ADVISORS LP | $78.0M | 653K | ▲+3.7% Added · +24K sh | Q1 2026 | |
| 11 | AMERICAN CENTURY COMPANIES INC | $70.0M | 586K | ▲+28% Added · +127K sh | Q1 2026 | |
| 12 | Freestone Grove Partners LP | $56.9M | 476K | ▲+98% Added · +236K sh | Q1 2026 | |
| 13 | Hood River Capital Management LLC | $50.9M | 426K | ▲New +426K sh | Q1 2026 | |
| 14 | Champlain Investment Partners, LLC | $39.1M | 327K | ▼−1.7% Reduced · −6K sh | Q1 2026 | |
| 15 | VOYA INVESTMENT MANAGEMENT LLC | $38.3M | 320K | ▲+34% Added · +81K sh | Q1 2026 | |
| 16 | CITADEL ADVISORS LLC | $37.4M | 313K | ▲+155% Added · +190K sh | Q1 2026 | |
| 17 | FEDERATED HERMES, INC. | $36.9M | 309K | ▼−6.0% Reduced · −20K sh | Q1 2026 | |
| 18 | GOLDMAN SACHS GROUP INC | $36.0M | 302K | ▲+22% Added · +54K sh | Q1 2026 | |
| 19 | EMERALD ADVISERS, LLC | $35.7M | 298K | ▼−1.2% Reduced · −4K sh | Q1 2026 | |
| 20 | NORTHERN TRUST CORP | $34.4M | 288K | ▲+2.1% Added · +6K sh | Q1 2026 | |
| 21 | Artemis Investment Management LLP | $32.8M | 275K | ▲+29% Added · +62K sh | Q1 2026 | |
| 22 | PRICE T ROWE ASSOCIATES INC /MD/ | $31.1M | 260K | ▼−7.5% Reduced · −21K sh | Q1 2026 | |
| 23 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $30.6M | 256K | ▼−1.9% Reduced · −5K sh | Q1 2026 | |
| 24 | Qube Research & Technologies Ltd | $28.7M | 240K | ▲+105% Added · +123K sh | Q1 2026 | |
| 25 | GENEVA CAPITAL MANAGEMENT LLC | $25.7M | 215K | ▼−7.3% Reduced · −17K 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.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Jul 15, 2026 | Armstrong Mac | CEO and Chairman, Director | Option exercise (M) | 113K | $0 |
| Jul 15, 2026 | Armstrong Mac | CEO and Chairman, Director | Option exercise (M) | 6K | $0 |
| Jul 15, 2026 | Armstrong Mac | CEO and Chairman, Director | Sell (S) | 58K | $7.6M |
| Jul 15, 2026 | Armstrong Mac | CEO and Chairman, Director | Option exercise (M) | 113K | $0 |
| Jul 15, 2026 | Armstrong Mac | CEO and Chairman, Director | Sell (S) | 3K | $421K |
| Jul 15, 2026 | Armstrong Mac | CEO and Chairman, Director | Option exercise (M) | 6K | $0 |
| Jul 2, 2026 | Christianson Jon | President | Option exercise (M) | 4K | $0 |
| Jul 2, 2026 | Christianson Jon | President | Option exercise (M) | 2K | $0 |
| Jul 2, 2026 | Christianson Jon | President | Sell (S) | 4K | $618K |
| Jul 2, 2026 | Christianson Jon | President | Option exercise (M) | 4K | $388K |
| Jul 2, 2026 | Christianson Jon | President | Sell (S) | 2K | $340K |
| Jul 2, 2026 | Christianson Jon | President | Option exercise (M) | 2K | $121K |
| Company | Co-held by | Combined value |
|---|---|---|
| ALPHABET INC-CL AGOOGL | 113 funds | $32.0B |
| NVIDIA CORPNVDA | 111 funds | $66.9B |
| MICROSOFT CORPMSFT | 111 funds | $46.5B |
| BROADCOM INCAVGO | 110 funds | $24.4B |
| AMAZON.COM INCAMZN | 109 funds | $35.6B |
| META PLATFORMS INC-CLASS AMETA | 109 funds | $21.2B |
| VISA INC-CLASS A SHARESV | 109 funds | $10.0B |
| ALPHABET INC-CL CGOOG | 108 funds | $20.0B |
| ELI LILLY & COLLY | 108 funds | $12.6B |
| COSTCO WHOLESALE CORPCOST | 108 funds | $8.5B |
| APPLE INCAAPL | 107 funds | $56.6B |
| TESLA INCTSLA | 107 funds | $14.1B |
Ranked by how many of PLMR's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for PLMR. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.