Skip to main content

CSS LLC/IL

Position in MSTR — Strategy Inc

CIK 1103646 CHICAGO, IL

Position in MSTR

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$2,215,731
+$2,215,731 QoQ
Shares Held
31,155
Ownership
0.008%
of shares outstanding
% of Portfolio
0.31%
of 13F equity value
Holder Rank
#242
of 860 holders
Holding Since
Mar 2021
17 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in MSTR Over Time

Shares Held

Position Value (USD)

Derivatives in MSTR

reported options exposure · as of Jun 30, 2026
CallValue
$104,316
CallShares
1,200
PutValue
$3,607,595
PutShares
41,500

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Software - Application

Technology · as of Jun 30, 2026

CSS LLC/IL holds $9,515,817 across 15 Software - Application names. MSTR ranks #1 (23.3% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 MSTR
Strategy Inc
This page
31,155 $2,215,731

All Filings in MSTR

Export CSV
28 filing rows on record
Report Date Value (USD) Shares
2026-06-30 STRK $1,030,702 17,523
2026-06-30 $104,316 1,200
2026-06-30 $3,607,595 41,500
2026-06-30 $1,185,029 13,632
2026-03-31 $14,177,280 113,600
2026-03-31 $124,800 1,000
2025-12-31 $151,950 1,000
2025-12-31 $42,758,730 281,400
2025-09-30 $94,310,867 292,700
2025-09-30 $161,105 500
2025-06-30 $110,556,905 273,500
2025-06-30 $202,115 500
2025-03-31 $72,182,808 250,400
2025-03-31 $432,405 1,500
2024-12-31 $3,330,630 11,500
2024-12-31 $112,720,104 389,200
2024-09-30 $86,491 513
2024-09-30 $60,021,600 356,000
2024-06-30 $48,900,540 35,500
2024-03-31 $59,830,056 35,100
2024-03-31 $5,113 3
2022-09-30 $275,938 1,300
2022-06-30 $213,590 1,300
2022-03-31 $632,216 1,300
2021-12-31 $980,082 1,800
2021-09-30 $1,272,480 2,200
2021-06-30 $265,800 400
2021-03-31 $271,520 400