BlackLine, Inc.
US ˙ NasdaqGS ˙ US09239B1098

SecurityBL / BlackLine, Inc.
InstitutionFred Alger Management, Llc
Latest Disclosed Ownership62,835 shares
Latest Disclosed Value $ 2,324,895
Fred Alger Management, Llc reports 0.92% decrease in ownership of BL / BlackLine, Inc.

On May 15, 2026 - Fred Alger Management, Llc filed a 13F-HR form disclosing ownership of 62,835 shares of BlackLine, Inc. (US:BL) valued at $2,324,895 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 63,419 shares of BlackLine, Inc.. This represents a change in shares of -0.92% during the quarter. The current value of the position is $1,803,993 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)
2026-05-15 2026-03-31 13F BlackLine Equity 09239B109 62,835 -584 -0.92 2,325 -33.71 0.0065
2026-02-17 2025-12-31 13F BlackLine Equity 09239B109 63,419 -34 -0.05 3,506 4.07 0.0138
2025-11-14 2025-09-30 13F BlackLine Equity 09239B109 63,453 73 0.12 3,369 -6.10 0.0131
2025-08-14 2025-06-30 13F BlackLine Equity 09239B109 63,380 -6,582 -9.41 3,589 5.93 0.0161
2025-05-16 2025-03-31 13F BlackLine Equity 09239B109 69,962 0 0.00 3,388 -20.31 0.0193
2025-02-14 2024-12-31 13F BlackLine Equity 09239B109 69,962 -13,849 -16.52 4,251 -8.03 0.0203
2024-11-14 2024-09-30 13F BLACKLINE Common 09239B109 83,811 -462,082 -84.65 4,621 -82.53 0.0224
2024-08-14 2024-06-30 13F BLACKLINE Common 09239B109 545,893 -12,869 -2.30 26,449 -26.70 0.1286
2024-05-15 2024-03-31 13F BLACKLINE Common 09239B109 558,762 -271,230 -32.68 36,085 -30.37 0.1789
2024-02-14 2023-12-31 13F BLACKLINE Common 09239B109 829,992 -86,698 -9.46 51,825 1.92 0.2796
2023-11-14 2023-09-30 13F BLACKLINE Common 09239B109 916,690 -94,565 -9.35 50,849 -6.57 0.2696
2023-11-14 2023-09-30 13F BLACKLINE Common 09239B109 916,690 50,849
2023-08-14 2023-06-30 13F BLACKLINE Common 09239B109 1,011,255 -145,150 -12.55 54,426 -29.91 0.2780
2023-05-16 2023-03-31 13F/A-1 BLACKLINE Common 09239B109 1,156,405 -322,242 -21.79 77,653 -21.93 0.4153
2023-05-15 2023-03-31 13F BLACKLINE Common 09239B109 1,156,405 -322,242 77,653 0.3851
2023-02-14 2022-12-31 13F BLACKLINE Common 09239B109 1,478,647 -16,357 -1.09 99,469 11.07 0.5391
2022-11-15 2022-09-30 13F BLACKLINE Common 09239B109 1,495,004 -49,754 -3.22 89,551 -12.96 0.4537
2022-08-15 2022-06-30 13F BLACKLINE Common 09239B109 1,544,758 -308,835 -16.66 102,881 -24.20 0.4804
2022-05-16 2022-03-31 13F BLACKLINE Common 09239B109 1,853,593 14,472 0.79 135,720 -28.73 0.4336
2022-02-14 2021-12-31 13F BLACKLINE Common 09239B109 1,839,121 -76,741 -4.01 190,423 -15.81 0.4770
2021-11-15 2021-09-30 13F BLACKLINE Common 09239B109 1,915,862 7,932 0.42 226,187 6.54 0.5393
2021-08-16 2021-06-30 13F BLACKLINE Common 09239B109 1,907,930 377,998 24.71 212,295 28.01 0.5011
2021-05-17 2021-03-31 13F BLACKLINE Common 09239B109 1,529,932 -131,267 -7.90 165,845 -25.15 0.4339
2021-02-16 2020-12-31 13F BLACKLINE Common 09239B109 1,661,199 40,572 2.50 221,571 52.54 0.5765
2020-11-13 2020-09-30 13F BLACKLINE Common 09239B109 1,620,627 213,006 15.13 145,257 24.46 0.4217
2020-08-14 2020-06-30 13F BLACKLINE Common 09239B109 1,407,621 -274,428 -16.32 116,706 31.88 0.3845
2020-05-19 2020-03-31 13F/A-1 BLACKLINE Common 09239B109 1,682,049 -18,595 -1.09 88,493 0.92 0.3889
2020-05-15 2020-03-31 13F BLACKLINE Common 09239B109 1,682,049 -18,595 88,493 389,347.5414
2020-02-14 2019-12-31 13F BLACKLINE Common 09239B109 1,700,644 150,078 9.68 87,685 18.28 0.3227
2019-11-14 2019-09-30 13F BLACKLINE Common 09239B109 1,550,566 19,117 1.25 74,133 -9.54 0.2909
2019-08-14 2019-06-30 13F BLACKLINE Common 09239B109 1,531,449 635,595 70.95 81,948 97.48 0.3147
2019-05-14 2019-03-31 13F BLACKLINE Common 09239B109 895,854 -15,548 -1.71 41,496 11.18 0.1653
2019-02-14 2018-12-31 13F BLACKLINE Common 09239B109 911,402 38,957 4.47 37,322 -24.25 0.1718
2018-11-14 2018-09-30 13F BLACKLINE Common 09239B109 872,445 178,151 25.66 49,267 63.39 0.1850
2018-07-19 2018-06-30 13F BLACKLINE Common 09239B109 694,294 694,294 30,153 0.1266
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.