Mason Hawkins's AMG Position Overview
Mason Hawkins (via Southeastern Asset Management Inc/Tn/) currently holds 6.8K shares of Affiliated Managers Group, Inc. (AMG) worth $1.63 M, representing 0.08% of the portfolio. First purchased in 2018-Q3, this long-term strategic position has been held for 29 quarters.
Based on 13F filings, Mason Hawkins has maintained a strategic position in AMG, demonstrating sustained confidence in this investment. Largest addition occurred in Q4 2018, adding 664.8K shares. Largest reduction occurred in Q4 2022, reducing 686.3K shares.
Analysis based on 13F filings available since 2013 Q2
Mason Hawkins's Affiliated Managers Group (AMG) Holding Value Over Time
Track share changes against reported price movement
Quarterly Affiliated Managers Group (AMG) Trades by Mason Hawkins
| Period | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q3 2018 | +1.17 M | New Buy | 1.17 M | $136.72 |
| Q4 2018 | +664,810 | Add 56.59% | 1.84 M | $97.44 |
| Q1 2019 | -147,811 | Reduce 8.03% | 1.69 M | $107.11 |
| Q2 2019 | -92,416 | Reduce 5.46% | 1.6 M | $92.14 |
| Q3 2019 | -77,392 | Reduce 4.84% | 1.52 M | $83.35 |
| Q4 2019 | -120,698 | Reduce 7.93% | 1.4 M | $84.74 |
| Q1 2020 | +601 | Add 0.04% | 1.4 M | $59.14 |
| Q2 2020 | -14,786 | Reduce 1.05% | 1.39 M | $74.56 |
| Q3 2020 | +14,510 | Add 1.05% | 1.4 M | $68.38 |
| Q4 2020 | +215,995 | Add 15.41% | 1.62 M | $101.70 |
| Q1 2021 | -346,782 | Reduce 21.44% | 1.27 M | $149.03 |
| Q2 2021 | +240,196 | Add 18.90% | 1.51 M | $154.21 |
| Q3 2021 | +88,728 | Add 5.87% | 1.6 M | $151.09 |
| Q4 2021 | -62,600 | Reduce 3.91% | 1.54 M | $164.51 |
| Q1 2022 | +238,069 | Add 15.49% | 1.78 M | $140.95 |
| Q2 2022 | -22,395 | Reduce 1.26% | 1.75 M | $116.60 |
| Q3 2022 | -134,723 | Reduce 7.69% | 1.62 M | $111.85 |
| Q4 2022 | -686,331 | Reduce 42.42% | 931,781 | $158.43 |
| Q1 2023 | -8,423 | Reduce 0.90% | 923,358 | $142.42 |
| Q2 2023 | -2,323 | Reduce 0.25% | 921,035 | $149.89 |
| Q3 2023 | -12,996 | Reduce 1.41% | 908,039 | $130.34 |
| Q4 2023 | -25,664 | Reduce 2.83% | 882,375 | $151.42 |
| Q1 2024 | -44,497 | Reduce 5.04% | 837,878 | $167.47 |
| Q2 2024 | -42,629 | Reduce 5.09% | 795,249 | $156.23 |
| Q3 2024 | -70,420 | Reduce 8.86% | 724,829 | $177.80 |
| Q4 2024 | -22,342 | Reduce 3.08% | 702,487 | $184.92 |
| Q1 2025 | -222,716 | Reduce 31.70% | 479,771 | $168.03 |
| Q2 2025 | -472,933 | Reduce 98.57% | 6,838 | $196.77 |
Mason Hawkins's Affiliated Managers Group Investment FAQs
Mason Hawkins first purchased Affiliated Managers Group, Inc. (AMG) in Q3 2018, acquiring 1,174,806 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Mason Hawkins has held Affiliated Managers Group, Inc. (AMG) for 29 quarters since Q3 2018. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Mason Hawkins's largest addition to Affiliated Managers Group, Inc. (AMG) was in Q3 2018, adding 1,174,806 shares worth $160.62 M. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
According to the latest 13F filing for Q3 2025, Mason Hawkins's firm, Southeastern Asset Management Inc/Tn/, owns 6,838 shares of Affiliated Managers Group, Inc. (AMG), valued at approximately $1.63 M. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
As of the Q3 2025 filing, Affiliated Managers Group, Inc. (AMG) represents approximately 0.08% of Mason Hawkins's publicly disclosed stock portfolio, making it one of their key holdings. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Mason Hawkins's peak holding in Affiliated Managers Group, Inc. (AMG) was 1,839,616 shares, as reported at the end of Q4 2018. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.