Funds Shorting Aspen Aerogels, Inc.
This page shows institutions, funds, and major shareholders that have reported short positions in their last reporting period. We consider put option positions to be short positions and include all institutions that have disclosed put options here. Green rows indicate new positions. Red rows indicate closed positions. Click the link icon to see the full transaction history.
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| File Date | Source | Investor | Type | Avg Price (Est) |
Shares | Δ Shares (%) |
Reported Value ($1000) |
Δ Value (%) |
Port Alloc (%) |
|
|---|---|---|---|---|---|---|---|---|---|---|
| 2025-08-14 | 13F | Jane Street Group, Llc | Put | 10,000 | -34.64 | 59 | -39.18 | |||
| 2025-08-14 | 13F | Citadel Advisors Llc | Put | 84,100 | -62.57 | 498 | -65.37 | |||
| 2025-08-18 | 13F | Wolverine Trading, Llc | Put | 24,100 | -33.97 | 142 | -41.25 | |||
| 2025-08-27 | NP | VMNFX - Vanguard Market Neutral Fund Investor Shares This fund is a listed as child fund of Vanguard Group Inc and if that institution has disclosed ownership in this security, then these positions will not be double counted when calculating total shares and total value | Short | -44,567 | -0.00 | -264 | -7.39 | |||
| 2025-08-14 | 13F | Tudor Investment Corp Et Al | Put | 0 | -100.00 | 0 | ||||
| 2025-08-05 | 13F | Simplex Trading, Llc | Put | 10,100 | -33.11 | 0 | ||||
| 2025-08-12 | 13F | Proequities, Inc. | Put | 0 | 0 | |||||
| 2025-08-14 | 13F | Susquehanna International Group, Llp | Put | 102,800 | -8.13 | 609 | -14.97 | |||
| 2025-05-15 | 13F | Caption Management, LLC | Put | 0 | -100.00 | 0 | -100.00 | |||
| 2025-08-13 | 13F | Walleye Trading LLC | Put | 9,700 | -2.02 | 57 | -9.52 | |||
| 2025-07-22 | 13F | IMC-Chicago, LLC | Put | 89,100 | 7.35 | 527 | -0.57 | |||
| 2025-08-13 | 13F | Walleye Capital LLC | Put | 27,400 | -19.41 | 162 | -25.35 | |||
| 2025-05-14 | 13F | DLD Asset Management, LP | Put | 0 | -100.00 | 0 | ||||
| 2025-08-14 | 13F | Cubist Systematic Strategies, LLC | Put | 56,800 | 336 | |||||
| 2025-08-14 | 13F | Group One Trading, L.p. | Put | 10,700 | -62.72 | 63 | -65.57 | |||
| 2025-05-14 | 13F | Capital Fund Management S.a. | Put | 0 | -100.00 | 0 | -100.00 |
