Stagwell Inc.
US ˙ NasdaqGS ˙ US85256A1097

SecuritySTGW / Stagwell Inc.
InstitutionAlliancebernstein L.p.
Latest Disclosed Ownership107,280 shares
Latest Disclosed Value $ 524,599
Alliancebernstein L.p. reports 13.33% decrease in ownership of STGW / Stagwell Inc.

On May 15, 2026 - Alliancebernstein L.p. filed a 13F-HR form disclosing ownership of 107,280 shares of Stagwell Inc. (US:STGW) valued at $674,791 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 123,780 shares of Stagwell Inc.. This represents a change in shares of -13.33% during the quarter. The current value of the position is $717,703 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 STAGWELL COM CL A 85256A109 107,280 -16,500 -13.33 525 -13.39 0.0002
2026-02-17 2025-12-31 13F STAGWELL COM CL A 85256A109 123,780 0 0.00 605 -13.07 0.0002
2025-11-14 2025-09-30 13F STAGWELL COM CL A 85256A109 123,780 16,200 15.06 697 43.80 0.0002
2025-08-14 2025-06-30 13F STAGWELL COM CL A 85256A109 107,580 0 0.00 484 -25.54 0.0002
2025-05-15 2025-03-31 13F STAGWELL COM CL A 85256A109 107,580 0 0.00 651 -8.06 0.0002
2025-02-12 2024-12-31 13F STAGWELL COM CL A 85256A109 107,580 0 0.00 708 -6.36 0.0002
2024-11-14 2024-09-30 13F STAGWELL COM CL A 85256A109 107,580 0 0.00 755 3.00 0.0003
2024-08-14 2024-06-30 13F STAGWELL COM CL A 85256A109 107,580 0 0.00 734 9.57 0.0003
2024-05-14 2024-03-31 13F STAGWELL COM CL A 85256A109 107,580 0 0.00 669 -6.17 0.0002
2024-02-14 2023-12-31 13F STAGWELL COM CL A 85256A109 107,580 -1,830 -1.67 713 38.99 0.0003
2023-11-14 2023-09-30 13F STAGWELL COM CL A 85256A109 109,410 0 0.00 513 -34.90 0.0002
2023-08-15 2023-06-30 13F STAGWELL COM CL A 85256A109 109,410 61,010 126.05 789 119.50 0.0003
2023-05-15 2023-03-31 13F STAGWELL COM CL A 85256A109 48,400 3,600 8.04 359 29.14 0.0002
2023-02-15 2022-12-31 13F STAGWELL COM CL A 85256A109 44,800 13,700 44.05 278 28.70 0.0001
2022-11-15 2022-09-30 13F STAGWELL COM CL A 85256A109 31,100 4,400 16.48 216 48.97 0.0001
2022-08-15 2022-06-30 13F STAGWELL COM CL A 85256A109 26,700 26,700 145 0.0001
2020-08-12 2020-06-30 13F MDC PARTNERS CL A SUB VTG 552697104 0 -50,750 -100.00 0 -100.00
2020-05-14 2020-03-31 13F MDC PARTNERS CL A SUB VTG 552697104 50,750 -1,100 -2.12 74 -48.61 0.0001
2020-02-18 2019-12-31 13F MDC PARTNERS CL A SUB VTG 552697104 51,850 0 0.00 144 -1.37 0.0001
2019-11-14 2019-09-30 13F MDC PARTNERS CL A SUB VTG 552697104 51,850 0 0.00 146 11.45 0.0001
2019-08-14 2019-06-30 13F MDC PARTNERS CL A SUB VTG 552697104 51,850 4,250 8.93 131 22.43 0.0001
2019-05-14 2019-03-31 13F MDC PARTNERS CL A SUB VTG 552697104 47,600 -6,600 -12.18 107 -24.11 0.0001
2019-02-13 2018-12-31 13F MDC PARTNERS CL A SUB VTG 552697104 54,200 7,200 15.32 141 -27.69 0.0001
2018-11-08 2018-09-30 13F MDC PARTNERS CL A SUB VTG 552697104 47,000 -2,500 -5.05 195 -14.47 0.0001
2018-08-13 2018-06-30 13F MDC PARTNERS CL A SUB VTG 552697104 49,500 -4,100 -7.65 228 -40.93 0.0002
2018-05-14 2018-03-31 13F MDC PARTNERS CL A SUB VTG 552697104 53,600 400 0.75 386 -25.63 0.0003
2018-02-13 2017-12-31 13F MDC PARTNERS CL A SUB VTG 552697104 53,200 -7,100 -11.77 519 -21.72 0.0004
2017-11-13 2017-09-30 13F MDC PARTNERS CL A SUB VTG 552697104 60,300 -3,700 -5.78 663 4.57 0.0005
2017-08-10 2017-06-30 13F MDC PARTNERS CL A SUB VTG 552697104 64,000 9,300 17.00 634 23.35 0.0005
2017-05-11 2017-03-31 13F MDC PARTNERS CL A SUB VTG 552697104 54,700 -5,300 -8.83 514 30.79 0.0004
2017-02-13 2016-12-31 13F MDC PARTNERS CL A SUB VTG 552697104 60,000 0 0.00 393 -38.88 0.0003
2016-11-10 2016-09-30 13F MDC PARTNERS CL A SUB VTG 552697104 60,000 -33,640 -35.92 643 -62.46 0.0005
2016-08-11 2016-06-30 13F MDC PARTNERS CL A SUB VTG 552697104 93,640 33,640 56.07 1,713 20.97 0.0015
2016-05-13 2016-03-31 13F MDC PARTNERS CL A SUB VTG 552697104 60,000 0 0.00 1,416 8.67 0.0012
2016-02-16 2015-12-31 13F/A-1 MDC PARTNERS CL A SUB VTG 552697104 60,000 0 0.00 1,303 17.81 0.0011
2016-02-12 2015-12-31 13F MDC PARTNERS CL A SUB VTG 552697104 60,000 1,106
2015-11-13 2015-09-30 13F MDC PARTNERS CL A SUB VTG 552697104 60,000 0 0.00 1,106 -6.43 0.0009
2015-08-14 2015-06-30 13F MDC PARTNERS CL A SUB VTG 552697104 60,000 0 0.00 1,182 -30.51 0.0010
2015-05-13 2015-03-31 13F MDC PARTNERS CL A SUB VTG 552697104 60,000 0 0.00 1,701 24.80 0.0014
2015-02-13 2014-12-31 13F MDC PARTNERS CL A SUB VTG 552697104 60,000 0 0.00 1,363 18.42 0.0011
2014-11-13 2014-09-30 13F MDC PARTNERS CL A SUB VTG 552697104 60,000 0 0.00 1,151 -10.71 0.0010
2014-08-13 2014-06-30 13F MDC PARTNERS CL A SUB VTG 552697104 60,000 -25 -0.04 1,289 -5.91 0.0011
2014-05-13 2014-03-31 13F MDC PARTNERS CL A SUB VTG 552697104 60,025 -1 -0.00 1,370 -10.63 0.0012
2014-02-13 2013-12-31 13F MDC PARTNERS CL A SUB VTG 552697104 60,026 17,009 39.54 1,533 27.01 0.0014
2013-11-14 2013-09-30 13F MDC PARTNERS CL A SUB VTG 552697104 43,017 17 0.04 1,207 58.40 0.0012
2013-08-13 2013-06-30 13F MDC PARTNERS CL A SUB VTG 552697104 43,000 43,000 762 0.0008
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.