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| Monashee Investment Management LLC
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| CRD # | 163148 |
| SEC # | 801-79936 |
| CIK # | 0001627608 |
| AUM | 1,856.2 M (2026-02-27) |
| Employees | 13 (62% Investors, 0% Brokers) |
| Phone | 617-671-0048 |
| Address | 75 Park Plaza Boston, MA 02116 |
| Source | [IAPD] [EDGAR] [Website] |
| Total AUM ($B) |
|---|
| In the News | |
|---|---|
| Thu, 23 Jul 2026 | Monashee Investment Management LLC Cuts Stake in WhiteFiber, Inc. $WYFI — MarketBeat |
| Thu, 23 Jul 2026 | Monashee Investment Management LLC Acquires 300,000 Shares of ADT Inc. $ADT — MarketBeat |
| Thu, 23 Jul 2026 | Monashee Investment Management LLC Reduces Holdings in BridgeBio Pharma, Inc. $BBIO — MarketBeat |
| Thu, 23 Jul 2026 | Monashee Investment Management LLC Takes Position in AST SpaceMobile, Inc. $ASTS — MarketBeat |
| Thu, 23 Jul 2026 | Monashee Investment Management LLC Makes New $1.47 Million Investment in Hallador Energy Company $HNRG — MarketBeat |
| Sector | Form 13F Holdings | Value ($M) | |
|---|---|---|---|
| Medline Inc | 13.3 | ||
| NRG Energy Inc | 12.4 | ||
| Forgent Power Solutions Inc | 10.2 | ||
| Solid Biosciences Inc | 10.2 | ||
| Nektar Therapeutics | 7.2 | ||
| Cytokinetics Inc | 6.6 | ||
| PPL Corp | 5.2 | ||
| Bridgebio Pharma Inc | 5.0 | ||
| ADT Inc | 4.6 | ||
| Evommune Inc | 4.1 | ||
| View All | |||
| Holdings by Sector ($M) |
|---|
| Type | Form D Funds | Date | Sold | AUM |
|---|---|---|---|---|
| HF | Mission Pure Alpha Master LP | [2025-02-26] | 8.5 M | 139.2 M |
| Filed 2025-12-17 (D/A) · Exemption 506(b), 3(c), 3(c)(7) · Minimum $1,000,000 · Remaining Indefinite · Duration More than one year · Net Assets Decline to Disclose | ||||
| HF | Monashee Pure Alpha Capital Master Fund LP | [2018-01-30] | 39.1 M | |
| Filed 2019-02-12 (D/A) · Exemption 506(b), 3(c), 3(c)(7) · Minimum $5,000,000 · Remaining Indefinite · Duration More than one year · Net Assets Decline to Disclose | ||||
| HF | Monashee Capital Master Fund LP | [2015-03-27] | 42.5 M | 2.8 M |
| Filed 2019-02-12 (D/A) · Exemption 506(b), 3(c), 3(c)(1) · Minimum $500,000 · Remaining Indefinite · Duration More than one year · Net Assets Decline to Disclose | ||||
| HF | Monashee Pure Alpha Capital Partners LP | [2014-03-31] | 39.1 M | 27.2 M |
| Filed 2019-02-12 (D/A) · Exemption 506(b), 3(c), 3(c)(7) · Minimum $5,000,000 · Remaining Indefinite · Duration More than one year · Net Assets Decline to Disclose | ||||
| HF | Monashee Capital Partners LP | [2012-04-04] | 42.5 M | 70.6 M |
| Filed 2019-02-12 (D/A) · Exemption 506(b), 3(c), 3(c)(1) · Minimum $500,000 · Remaining Indefinite · Duration More than one year · Net Assets Decline to Disclose | ||||
| AUM Breakdown | Accounts | AUM ($B) |
|---|---|---|
| By Client Type | ||
| (a) Individuals (other than high net worth individuals) | 0 | 0.0 |
| (b) Individuals (high net worth individuals) | 0 | 0.0 |
| (c) Banking or thrift institutions | 0 | 0.0 |
| (d) Investment companies | 0 | 0.0 |
| (e) Business development companies | 0 | 0.0 |
| (f) Pooled investment vehicles | 5 | 0.7 |
| (g) Pension and profit sharing plans | 0 | 0.6 |
| (h) Charitable organizations | 0 | 0.4 |
| (i) State or municipal government entities | 0 | 0.0 |
| (j) Other investment advisers | 0 | 0.0 |
| (k) Insurance companies | 0 | 0.0 |
| (l) Sovereign wealth funds and foreign official institutions | 0 | 0.0 |
| (m) Corporations or other businesses not listed above | 0 | 0.1 |
| (n) Other | 0 | 0.0 |
| Total | 12 | 1.9 |
| By Discretionary | ||
| Discretionary | 12 | 1.9 |
| Non-Discretionary | 0 | 0.0 |
| Total | 12 | 1.9 |
| By Non-United States Persons | ||
| Non-United States Persons | 1.2 | |
| United States Persons | 0.7 | |
| Total | 12 | 1.9 |
| Form D Directors | Role | # Filings | # Firms | 2011 - 2026 |
|---|---|---|---|---|
| Thomas Wynn | Executive Officer | 7 | 2 | |
| Monashee Investment Management LLC | Executive Officer | 3 | 2 | |
| Monashee Capital GP LLC | Executive Officer | 3 | 2 | |
| Tom Wynn | Executive Officer | 3 | 2 | |
| Monashee Holdings LLC | Executive Officer | 2 | 2 | |
| Gerald Coughlan | Executive Officer | 2 | 1 |
| EDGAR Form | CIK | 2011 - 2026 |
|---|---|---|
| 13F-HR | [0001627608] |
| Firm Profile (Form ADV) | |
|---|---|
| Serves | Institutional |
| Fund Types | Hedge Fund |
| LEI | 549300DBGG1WL6Q1U134 |
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