BlackLine, Inc.
US ˙ NasdaqGS ˙ US09239B1098

SecurityBL / BlackLine, Inc.
InstitutionChicago Capital, LLC
Latest Disclosed Ownership27,537 shares
Latest Disclosed Value $ 1,018,869
Chicago Capital, LLC ownership in BL / BlackLine, Inc.

On April 23, 2026 - Chicago Capital, LLC filed a 13F-HR form disclosing ownership of 27,537 shares of BlackLine, Inc. (US:BL) valued at $1,018,869 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 27,537 shares of BlackLine, Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $793,341 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)
2026-04-23 2026-03-31 13F BLACKLINE COM 09239B109 27,537 0 0.00 1,019 -33.11 0.0275
2026-01-26 2025-12-31 13F BLACKLINE COM 09239B109 27,537 -65 -0.24 1,523 3.89 0.0376
2025-10-22 2025-09-30 13F BLACKLINE COM 09239B109 27,602 -1,144 -3.98 1,466 -9.96 0.0361
2025-07-17 2025-06-30 13F BLACKLINE COM 09239B109 28,746 0 0.00 1,628 16.97 0.0402
2025-04-17 2025-03-31 13F BLACKLINE COM 09239B109 28,746 -432 -1.48 1,392 -21.50 0.0393
2025-01-24 2024-12-31 13F BLACKLINE COM 09239B109 29,178 0 0.00 1,773 10.20 0.0470
2024-10-18 2024-09-30 13F BLACKLINE COM 09239B109 29,178 -2,655 -8.34 1,609 4.28 0.0447
2024-08-06 2024-06-30 13F BLACKLINE COM 09239B109 31,833 -637 -1.96 1,542 -26.43 0.0459
2024-04-15 2024-03-31 13F BLACKLINE COM 09239B109 32,470 -433,265 -93.03 2,097 -92.79 0.0639
2024-01-22 2023-12-31 13F BLACKLINE COM 09239B109 465,735 -4,208 -0.90 29,080 11.56 1.0472
2023-10-25 2023-09-30 13F BLACKLINE COM 09239B109 469,943 -5,203 -1.10 26,068 1.94 1.2193
2023-07-20 2023-06-30 13F BLACKLINE COM 09239B109 475,146 -31,826 -6.28 25,572 -24.88 1.1529
2023-04-18 2023-03-31 13F BLACKLINE COM 09239B109 506,972 -546 -0.11 34,043 -0.28 1.6938
2023-01-20 2022-12-31 13F BLACKLINE COM 09239B109 507,518 4,055 0.81 34,141 13.21 1.8886
2022-10-14 2022-09-30 13F BLACKLINE COM 09239B109 503,463 -3,412 -0.67 30,157 -10.67 1.7442
2022-07-21 2022-06-30 13F BLACKLINE COM 09239B109 506,875 94,404 22.89 33,758 11.78 1.8650
2022-04-21 2022-03-31 13F BLACKLINE COM 09239B109 412,471 29,284 7.64 30,201 -23.88 1.2999
2022-01-20 2021-12-31 13F BLACKLINE COM 09239B109 383,187 -7,590 -1.94 39,675 -14.00 1.4774
2021-10-28 2021-09-30 13F BLACKLINE COM 09239B109 390,777 -3,131 -0.79 46,135 5.26 1.7498
2021-07-22 2021-06-30 13F BLACKLINE COM 09239B109 393,908 -3,679 -0.93 43,830 1.70 1.7129
2021-04-13 2021-03-31 13F BLACKLINE COM 09239B109 397,587 -117,011 -22.74 43,098 -37.21 1.8190
2021-01-25 2020-12-31 13F BLACKLINE COM 09239B109 514,598 -40,650 -7.32 68,637 37.92 3.0662
2020-10-13 2020-09-30 13F BLACKLINE COM 09239B109 555,248 -58,274 -9.50 49,767 -2.16 2.5587
2020-07-29 2020-06-30 13F BLACKLINE COM 09239B109 613,522 -313 -0.05 50,867 57.51 2.9477
2020-04-21 2020-03-31 13F BLACKLINE COM 09239B109 613,835 -2,182 -0.35 32,294 1.67 2.6042
2020-01-14 2019-12-31 13F BLACKLINE COM 09239B109 616,017 4,887 0.80 31,762 8.71 1.9379
2019-10-28 2019-09-30 13F BLACKLINE COMMON 09239B109 611,130 27,242 4.67 29,218 -6.48 1.9569
2019-07-11 2019-06-30 13F BLACKLINE COMMON 09239B109 583,888 981 0.17 31,244 15.72 1.9987
2019-04-23 2019-03-31 13F BLACKLINE COMMON 09239B109 582,907 9,160 1.60 27,000 14.92 1.8353
2019-02-11 2018-12-31 13F BLACKLINE COM 09239B109 573,747 175,386 44.03 23,495 4.45 1.9159
2018-11-02 2018-09-30 13F BLACKLINE COM 09239B109 398,361 33,588 9.21 22,495 42.00 1.5562
2018-07-19 2018-06-30 13F BLACKLINE COM 09239B109 364,773 106,537 41.26 15,842 56.46 1.2772
2018-05-09 2018-03-31 13F Blackline COM 09239B109 258,236 258,236 10,125 1.3511
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.