Smart Sand, Inc.
US ˙ NasdaqGS ˙ US83191H1077

SecuritySND / Smart Sand, Inc.
InstitutionCastleKnight Management LP
Latest Disclosed Ownership147,095 shares
Latest Disclosed Value $ 753,126
CastleKnight Management LP reports 67.22% decrease in ownership of SND / Smart Sand, Inc.

On May 15, 2026 - CastleKnight Management LP filed a 13F-HR form disclosing ownership of 147,095 shares of Smart Sand, Inc. (US:SND) valued at $753,126 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 448,673 shares of Smart Sand, Inc.. This represents a change in shares of -67.22% during the quarter. The current value of the position is $801,668 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F SMART SAND COM 83191H107 147,095 -301,578 -67.22 753 -58.03 0.0126
2026-02-17 2025-12-31 13F SMART SAND COM 83191H107 448,673 -475,500 -51.45 1,795 -9.26 0.0398
2025-11-14 2025-09-30 13F SMART SAND COM 83191H107 924,173 0 0.00 1,978 6.46 0.0390
2025-08-14 2025-06-30 13F SMART SAND COM 83191H107 924,173 0 0.00 1,858 -22.40 0.0525
2025-05-15 2025-03-31 13F SMART SAND COM 83191H107 924,173 -83,200 -8.26 2,394 5.60 0.0940
2025-02-14 2024-12-31 13F SMART SAND COM 83191H107 1,007,373 0 0.00 2,267 14.21 0.0662
2024-11-14 2024-09-30 13F SMART SAND COM 83191H107 1,007,373 0 0.00 1,985 -6.64 0.0818
2024-08-14 2024-06-30 13F SMART SAND COM 83191H107 1,007,373 0 0.00 2,126 10.45 0.1055
2024-05-15 2024-03-31 13F SMART SAND COM 83191H107 1,007,373 48,135 5.02 1,924 3.94 0.1148
2024-02-14 2023-12-31 13F SMART SAND COM 83191H107 959,238 292,900 43.96 1,851 19.81 0.0977
2023-11-14 2023-09-30 13F SMART SAND COM 83191H107 666,338 226,455 51.48 1,546 114.29 0.1014
2023-08-14 2023-06-30 13F SMART SAND COM 83191H107 439,883 162,492 58.58 721 47.75 0.0758
2023-05-15 2023-03-31 13F SMART SAND COM 83191H107 277,391 191,816 224.15 488 218.95 0.0505
2023-02-14 2022-12-31 13F SMART SAND COM 83191H107 85,575 85,575 153 0.0202
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.