Among active 13F managers last quarter, 2 opened and 1 added, while 2 reduced; the largest holder to move was Renaissance Technologies LLC (−1.6%). No open-market insider trades in the last 180 days.
Funds lean in and no leg opposes.
16 tracked 13F filers disclose a position in PULM as of the latest SEC 13F filings, a combined $516K 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 | Renaissance Technologies LLC | 109K | $141K | ▼−1.6% Reduced · −2K sh | Q1 2026 | |
| 2 | BlackRock, Inc. | 55K | $93K | —Held | Q2 2026 | |
| 3 | Geode Capital Management, LLC | 33K | $57K | ▼−25% Reduced · −11K sh | Q2 2026 | |
| 4 | Vanguard Capital Management LLC | 32K | $55K | ▼−3.9% Reduced · −1K sh | Q2 2026 | |
| 5 | SBI Securities Co., Ltd. | 31K | $53K | ▲+4.0% Added · +1K sh | Q2 2026 | |
| 6 | Shay Capital LLC | 19K | $32K | ▲New +19K sh | Q2 2026 | |
| 7 | Vanguard Fiduciary Trust Co | 15K | $25K | —Held | Q2 2026 | |
| 8 | Jane Street Group, LLC | 15K | $19K | ▲New +15K sh | Q1 2026 | |
| 9 | State Street Corp | 14K | $24K | —Held | Q2 2026 | |
| 10 | XTX Topco Ltd | 14K | $18K | ▲New +14K sh | Q1 2026 | |
| 11 | Tower Research Capital LLC (TRC) | 207 | $267 | ▼−77% Reduced · −706 sh | Q1 2026 | |
| 12 | UBS Group AG | 23 | $30 | ▲New +23 sh | Q1 2026 | |
| 13 | Farther Finance Advisors, LLC | 7 | $9 | —Held | Q1 2026 | |
| 14 | Royal Bank Of Canada | 7 | $0 | ▲+17% Added · +1 sh | Q1 2026 | |
| 15 | Allworth Financial LP | 3 | $4 | —Held | Q1 2026 | |
| 16 | Northwestern Mutual Wealth Management Co | 1 | $1 | —Held | 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 PULM and 1 added to an existing one, while 2 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 |
|---|---|---|
| Apple IncAAPL | 6 funds | $1.3B |
| Nvidia CorpNVDA | 6 funds | $1.2B |
| Palantir Technologies Inc-APLTR | 6 funds | $1.1B |
| Micron Technology IncMU | 6 funds | $974.3M |
| Sandisk CorpSNDK | 6 funds | $560.1M |
| Alphabet Inc-CL AGOOGL | 6 funds | $405.1M |
| Broadcom IncAVGO | 6 funds | $384.7M |
| Intel CorpINTC | 6 funds | $375.0M |
| Tesla IncTSLA | 6 funds | $307.3M |
| Microsoft CorpMSFT | 6 funds | $300.8M |
| Visa Inc-Class A SharesV | 6 funds | $293.4M |
| Vertiv Holdings Co-AVRT | 6 funds | $255.1M |
Ranked by how many of PULM's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in PULM.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Apr 3, 2018 | Sherman Matthew L | Director | Buy (P) | 20K | — |
| Apr 3, 2018 | Iwicki Mark T | Director | Buy (P) | 307K | — |
| Apr 3, 2018 | Polaris Venture Management Co. V, L.L.C. | 10% Owner | Buy (P) 6 lots, same day | 1.1M | — |
| Apr 3, 2018 | ARCH Venture Partners VII, L.P. | Insider | Buy (P) | 1.1M | — |
| Jun 17, 2015 | Oculus Innovative Sciences, Inc. | 10% Owner | Sell (S) | 923K | $2.5M |
| Jun 16, 2015 | Oculus Innovative Sciences, Inc. | 10% Owner | Sell (S) | 728K | $2.0M |
| Jun 16, 2015 | Crandell Keith | 10% Owner | Buy (P) | 73K | $501K |
| Jun 15, 2015 | Polaris Venture Partners IV Lp | 10% Owner | Buy (P) 6 lots, same day | 107K | $734K |
| Jun 15, 2015 | Polaris Venture Partners V, L.P. | 10% Owner | Buy (P) 4 lots, same day | 74K | $509K |
| Mar 23, 2015 | Oculus Innovative Sciences, Inc. | 10% Owner | Sell (S) | 350K | $963K |
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 | 2 | 4 | – |
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 PULM
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/PULM/capital-change-brief"
Use Arkolith's capital_change_brief for PULM. 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 PULM. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.