Monashee Investment Management LLC
13F filer · CIK 1627608 · Boston, MA
Summary
Monashee Investment Management LLC reported $59.58M across 23 positions in its 13F for 2026 Q2, filed Aug 13, 2026. The largest holdings are ALPHABET INC (8.5%), ALPHABET INC (8.4%), SLDB (8.4%). Versus 2026 Q1, leaving options aside, it opened 21 new positions, added to 0, trimmed 2 and sold out of 43.
Reported value$59.58M
Positions23
Report period2026 Q2
FiledAug 13, 2026
New positions21
Added0
Trimmed2
Sold out43
Top 23 holdings
By reported value, options listed separately · change vs 2026 Q1
ALPHABET INCNo ticker matchNew
Weight 8.5%Value $5.09MShares 100K
ALPHABET INCNo ticker matchNew
Weight 8.4%Value $5.03MShares 100K
Weight 8.4%Value $5.00MPrice $7.16Shares 500K -64.80%Since Jun 30 -28.33%
Weight 7.5%Value $4.49MPrice $176.56Shares 25KSince Jun 30 -1.68%
Weight 7.5%Value $4.44MPrice $84.72Shares 50KSince Jun 30 -4.57%
Weight 6.5%Value $3.90MPrice $6.14Shares 600K -14.29%Since Jun 30 -5.54%
Weight 5.2%Value $3.13MPrice $24.42Shares 100KSince Jun 30 -21.88%
CELCUITY INCNo ticker matchNew
Weight 4.8%Value $2.84MPrincipal $2.50M
Weight 4.4%Value $2.60MShares 50K
Weight 4.1%Value $2.47MPrice $18.82Shares 85KSince Jun 30 -34.83%
Weight 3.6%Value $2.14MPrice $340.92Shares 6,000Since Jun 30 -4.60%
Weight 3.6%Value $2.12MPrice $337.32Shares 6,000Since Jun 30 -4.53%
Weight 3.5%Value $2.07MPrice $24.51Shares 45KSince Jun 30 -46.79%
INNIO NVNo ticker matchNew
Weight 3.2%Value $1.88MShares 48K
Weight 3.0%Value $1.79MPrice $19.20Shares 85KSince Jun 30 -8.18%
Weight 2.7%Value $1.61MPrice $16.89Shares 64KSince Jun 30 -32.95%
PURECYCLE TECHNOLOGIES INCNo ticker matchNew
Weight 2.6%Value $1.53MPrincipal $1.50M
Weight 2.5%Value $1.46MPrice $11.45Shares 75KSince Jun 30 -41.19%
Weight 2.4%Value $1.43MPrice $24.89Shares 51KSince Jun 30 -10.53%
Weight 2.3%Value $1.36MPrice $4.99Shares 200KSince Jun 30 -26.73%
Weight 1.9%Value $1.13MPrice $4.58Shares 192KSince Jun 30 -22.37%
NUVATION BIO INCNo ticker matchNew
Weight 1.8%Value $1.06MPrincipal $1.00M
Weight 1.7%Value $1.02MPrice $14.66Shares 43KSince Jun 30 -38.53%
| Stock | Weight | Value | Since Jun 30 | Shares change | Action |
|---|---|---|---|---|---|
| ALPHABET INCNo ticker match | 8.5% | $5.09M | — | — | New |
| ALPHABET INCNo ticker match | 8.4% | $5.03M | — | — | New |
| 8.4% | $5.00M | -28.33% | -64.80% | Trim | |
| 7.5% | $4.49M | -1.68% | — | New | |
| 7.5% | $4.44M | -4.57% | — | New | |
| 6.5% | $3.90M | -5.54% | -14.29% | Trim | |
| 5.2% | $3.13M | -21.88% | — | New | |
| CELCUITY INCNo ticker match | 4.8% | $2.84M | — | — | New |
| 4.4% | $2.60M | — | — | New | |
| 4.1% | $2.47M | -34.83% | — | New | |
| 3.6% | $2.14M | -4.60% | — | New | |
| 3.6% | $2.12M | -4.53% | — | New | |
| 3.5% | $2.07M | -46.79% | — | New | |
| INNIO NVNo ticker match | 3.2% | $1.88M | — | — | New |
| 3.0% | $1.79M | -8.18% | — | New | |
| 2.7% | $1.61M | -32.95% | — | New | |
| PURECYCLE TECHNOLOGIES INCNo ticker match | 2.6% | $1.53M | — | — | New |
| 2.5% | $1.46M | -41.19% | — | New | |
| 2.4% | $1.43M | -10.53% | — | New | |
| 2.3% | $1.36M | -26.73% | — | New | |
| 1.9% | $1.13M | -22.37% | — | New | |
| NUVATION BIO INCNo ticker match | 1.8% | $1.06M | — | — | New |
| 1.7% | $1.02M | -38.53% | — | New |
Weight is the share of the reported 13F value, including options at notional value. “Since Jun 30” compares the latest close with the quarter-end price implied by the filing (value ÷ shares).
Largest buys in 2026 Q2
ALPHABET INCNo ticker match≈ $5.09MNew
ALPHABET INCNo ticker match≈ $5.03MNew
Largest sells in 2026 Q2
Source: SEC Form 13F, values as reported by the filer. Filings lag up to 45 days after quarter end and cover only certain long positions. Research only, not investment advice.