BlackLine, Inc.
US ˙ NasdaqGS ˙ US09239B1098

SecurityBL / BlackLine, Inc.
InstitutionQuadrant Capital Group Llc
Latest Disclosed Ownership1,110 shares
Latest Disclosed Value $ 41,070
Quadrant Capital Group Llc reports 53.48% decrease in ownership of BL / BlackLine, Inc.

On May 13, 2026 - Quadrant Capital Group Llc filed a 13F-HR/A form disclosing ownership of 1,110 shares of BlackLine, Inc. (US:BL) valued at $41,070 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 2,386 shares of BlackLine, Inc.. This represents a change in shares of -53.48% during the quarter. The current value of the position is $31,868 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.

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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)
2026-05-13 2026-03-31 13F/A-1 BLACKLINE COM 09239B109 1,110 -1,276 -53.48 41 -68.70 0.0012
2026-05-11 2026-03-31 13F BLACKLINE COM 09239B109 1,110 -1,276 49 0.0369
2026-02-12 2025-12-31 13F BLACKLINE COM 09239B109 2,386 1,350 130.31 132 138.18 0.0040
2025-11-13 2025-09-30 13F BLACKLINE COM 09239B109 1,036 1,036 55 0.0018
2025-08-13 2025-06-30 13F BLACKLINE COM 09239B109 0 -657 -100.00 0 -100.00
2025-05-13 2025-03-31 13F BLACKLINE COM 09239B109 657 73 12.50 32 -11.43 0.0012
2025-02-13 2024-12-31 13F BLACKLINE COM 09239B109 584 414 243.53 35 288.89 0.0024
2024-11-12 2024-09-30 13F BLACKLINE COM 09239B109 170 24 16.44 9 28.57 0.0007
2024-08-12 2024-06-30 13F BLACKLINE COM 09239B109 146 -772 -84.10 7 -88.14 0.0005
2024-05-15 2024-03-31 13F BLACKLINE COM 09239B109 918 797 658.68 59 742.86 0.0047
2024-02-08 2023-12-31 13F BLACKLINE COM 09239B109 121 108 830.77 8 0.0006
2023-11-14 2023-09-30 13F BLACKLINE COM 09239B109 13 13 1 0.0001
2023-08-10 2023-06-30 13F BLACKLINE COM 09239B109 0 -167 -100.00 0 -100.00
2023-05-11 2023-03-31 13F BLACKLINE COM 09239B109 167 0 0.00 11 0.00 0.0012
2023-02-13 2022-12-31 13F BLACKLINE COM 09239B109 167 -900 -84.35 11 -82.81 0.0013
2022-11-10 2022-09-30 13F BLACKLINE COM 09239B109 1,067 -155 -12.68 64 -20.99 0.0085
2022-08-09 2022-06-30 13F BLACKLINE COM 09239B109 1,222 877 254.20 81 224.00 0.0109
2022-05-06 2022-03-31 13F BLACKLINE COM 09239B109 345 334 3,036.36 25 2,400.00 0.0030
2022-02-01 2021-12-31 13F BLACKLINE COM 09239B109 11 -20 -64.52 1 -75.00 0.0001
2021-11-12 2021-09-30 13F BLACKLINE COM 09239B109 31 18 138.46 4 300.00 0.0006
2021-08-09 2021-06-30 13F BLACKLINE COM 09239B109 13 -22 -62.86 1 -75.00 0.0001
2021-05-12 2021-03-31 13F BLACKLINE COM 09239B109 35 25 250.00 4 300.00 0.0006
2021-02-16 2020-12-31 13F BLACKLINE COM 09239B109 10 0 0.00 1 0.00 0.0002
2020-11-13 2020-09-30 13F BLACKLINE COM 09239B109 10 -1,886 -99.47 1 -99.36 0.0002
2020-08-13 2020-06-30 13F BLACKLINE COM 09239B109 1,896 1,891 37,820.00 157 0.0347
2020-05-15 2020-03-31 13F Blackline Com 09239B109 5 5 0 0.0000
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.