Advanced Emissions Solutions, Inc.
US ˙ NasdaqGM ˙ US00770C1018
DETTE SYMBOL ER IKKE LÆNGERE AKTIVT

SecurityADES / Advanced Emissions Solutions, Inc.
InstitutionCitigroup Inc
Latest Disclosed Ownership1,486 shares
Latest Disclosed Value $ 3,805
Citigroup Inc reports 93.25% decrease in ownership of ADES / Advanced Emissions Solutions, Inc.

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 1,486 shares of Advanced Emissions Solutions, Inc. (US:ADES) valued at $3,805 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 22,002 shares of Advanced Emissions Solutions, Inc.. This represents a change in shares of -93.25% during the quarter. The current value of the position is $4,993 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)
2026-05-11 2026-03-31 13F ARQ COM 00770C101 1,486 -20,516 -93.25 4 -95.77 0.0000
2026-02-13 2025-12-31 13F ARQ COM 00770C101 22,002 -14,643 -39.96 72 -72.90 0.0000
2025-11-10 2025-09-30 13F ARQ COM 00770C101 36,645 25,875 240.25 262 359.65 0.0001
2025-08-11 2025-06-30 13F ARQ COM 00770C101 10,770 -9,270 -46.26 58 -31.33 0.0000
2025-05-12 2025-03-31 13F ARQ COM 00770C101 20,040 -1,616 -7.46 84 -49.08 0.0000
2025-02-12 2024-12-31 13F ARQ COM 00770C101 21,656 3,661 20.34 164 55.24 0.0001
2024-11-12 2024-09-30 13F ARQ COM 00770C101 17,995 12,466 225.47 106 218.18 0.0001
2024-08-12 2024-06-30 13F ARQ COM 00770C101 5,529 -752 -11.97 34 -17.50 0.0000
2024-05-10 2024-03-31 13F ARQ COM 00770C101 6,281 6,281 41 0.0000
2022-05-12 2022-03-31 13F ADVANCED EMISSIONS SOLUTIONS COM 00770C101 0 -394 -100.00 0 -100.00
2022-02-10 2021-12-31 13F ADVANCED EMISSIONS SOLUTIONS COM 00770C101 394 0 0.00 3 0.00 0.0000
2021-11-10 2021-09-30 13F ADVANCED EMISSIONS SOLUTIONS COM 00770C101 394 -1,382 -77.82 3 -76.92 0.0000
2021-08-10 2021-06-30 13F ADVANCED EMISSIONS SOLUTIONS COM 00770C101 1,776 -1,336 -42.93 13 -23.53 0.0000
2021-05-13 2021-03-31 13F ADVANCED EMISSIONS SOLUTS IN COM 00770C101 3,112 -1,993 -39.04 17 -39.29 0.0000
2021-02-11 2020-12-31 13F ADVANCED EMISSIONS SOLUTS IN COM 00770C101 5,105 3,019 144.73 28 250.00 0.0000
2020-11-12 2020-09-30 13F ADVANCED EMISSIONS SOLUTS IN COM 00770C101 2,086 -1,314 -38.65 8 -50.00 0.0000
2020-08-12 2020-06-30 13F ADVANCED EMISSIONS SOLUTS IN COM 00770C101 3,400 -1,356 -28.51 16 -48.39 0.0000
2020-05-12 2020-03-31 13F ADVANCED EMISSIONS SOLUTS IN COM 00770C101 4,756 1,165 32.44 31 -16.22 0.0000
2020-02-12 2019-12-31 13F ADVANCED EMISSIONS SOLUTS IN COM 00770C101 3,591 860 31.49 37 -7.50 0.0000
2019-11-08 2019-09-30 13F ADVANCED EMISSIONS SOLUTS IN COM 00770C101 2,731 -1,834 -40.18 40 -29.82 0.0000
2019-08-12 2019-06-30 13F ADVANCED EMISSIONS SOLUTS IN COM 00770C101 4,565 -388 -7.83 57 0.00 0.0000
2019-05-13 2019-03-31 13F ADVANCED EMISSIONS SOLUTS IN COM 00770C101 4,953 472 10.53 57 21.28 0.0001
2019-02-12 2018-12-31 13F ADVANCED EMISSIONS SOLUTS IN COM 00770C101 4,481 -1,849 -29.21 47 -38.16 0.0000
2018-11-13 2018-09-30 13F ADVANCED EMISSIONS SOLUTS IN COM 00770C101 6,330 6,330 76 0.0001
2018-08-10 2018-06-30 13F ADVANCED EMISSIONS SOLUTS IN COM 00770C101 0 -2,566 -100.00 0 -100.00
2018-05-11 2018-03-31 13F ADVANCED EMISSIONS SOLUTS IN COM 00770C101 2,566 -128 -4.75 29 11.54 0.0000
2018-02-12 2017-12-31 13F ADVANCED EMISSIONS SOLUTS IN COM 00770C101 2,694 2,629 4,044.62 26 2,500.00 0.0000
2017-11-13 2017-09-30 13F ADVANCED EMISSIONS SOLUTS IN COM 00770C101 65 -160 -71.11 1 -50.00 0.0000
2017-08-11 2017-06-30 13F ADVANCED EMISSIONS SOLUTS IN COM 00770C101 225 225 2 0.0000
2015-05-14 2015-03-31 13F ADVANCED EMISSIONS SOLUTS IN COM 00770C101 0 -3,727 -100.00 0 -100.00
2015-02-17 2014-12-31 13F ADVANCED EMISSIONS SOLUTS IN COM 00770C101 3,727 2,911 356.74 85 400.00 0.0001
2014-11-14 2014-09-30 13F ADVANCED EMISSIONS SOLUTS IN COM 00770C101 816 632 343.48 17 325.00 0.0000
2014-08-14 2014-06-30 13F ADVANCED EMISSIONS SOLUTS IN COM 00770C101 184 -3,142 -94.47 4 -95.12 0.0000
2014-05-15 2014-03-31 13F ADVANCED EMISSIONS SOLUTS IN COM 00770C101 3,326 -494 -12.93 82 -60.39 0.0001
2014-02-14 2013-12-31 13F ADVANCED EMISSIONS SOLUTS IN COM 00770C101 3,820 3,807 29,284.62 207 20,600.00 0.0002
2013-11-14 2013-09-30 13F ADVANCED EMISSIONS SOLUTS IN COM 00770C101 13 13 1 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.