--- title: "Asset Manager 13Fs: BlackRock, T. Rowe Price, Invesco, Affiliated" type: learn slug: asset-manager-13f-blk-tro-decoder canonical_url: https://13finsight.com/learn/asset-manager-13f-blk-tro-decoder published_at: 2026-05-16T14:46:24.668Z updated_at: 2026-05-16T14:46:29.140Z author: Sarah Mitchell author_title: Education Editor author_url: https://13finsight.com/authors/sarah-mitchell word_count: 589 locale: en source: 13F Insight --- # Asset Manager 13Fs: BlackRock, T. Rowe Price, Invesco, Affiliated > BlackRock, T. Rowe Price, Invesco, Franklin Resources, plus Affiliated Managers Group and Federated Hermes anchor US asset manager 13F positioning. Active-vs-passive flows, fee compression, plus emerging private market expansion drive distinctive institutional patterns. US asset manager equities form a distinctive financial services corner of institutional 13F positioning facing structural headwinds. BlackRock (BLK), T. Rowe Price Group (TROW), Invesco (IVZ), Franklin Resources (BEN), Affiliated Managers Group (AMG), plus Federated Hermes (FHI) anchor the cohort. Multi-year emerging active-vs-passive flow dynamics, fee compression, plus emerging private market expansion drive distinctive institutional positioning. Reading asset manager 13F positioning requires understanding the AUM-fee framework plus the multi-year secular dynamics.The asset manager business modelAsset managers operate four primary economic engines:Active-vs-passive flow dynamics. Multi-year emerging passive index fund growth (Vanguard, BlackRock iShares, State Street SPDR) drives multi-decade active management share loss. Multi-year emerging US ETF AUM exceeded $10T 2024 plus emerging emerging passive equity share exceeded 50% 2024. Multi-year emerging active manager net outflows compound on emerging market depreciation.Fee compression. Multi-year emerging fee compression drives operator economics. Active equity expense ratios declined from 1.0%+ (early 2000s) to 0.50-0.70% (2024). Passive equity expense ratios declined from 0.20% to 0.03-0.10%. Multi-year emerging emerging fee pressure compounds revenue impact beyond AUM dynamics. Multi-year emerging emerging fixed-income fee compression less aggressive than equity.Private market expansion. Multi-year emerging private market expansion (private equity, private credit, real estate, infrastructure) drives asset manager strategic positioning. Multi-year emerging BlackRock GIP acquisition (Global Infrastructure Partners, closed October 2024, $12.5B) plus emerging emerging BlackRock HPS Investment Partners pending acquisition (announced December 2024, $12B private credit) plus emerging emerging T. Rowe Oak Hill Advisors acquisition (2021) reshape positioning.Geographic diversification. Multi-year emerging geographic diversification drives operator stability. Multi-year emerging US institutional plus emerging emerging retail plus emerging emerging international plus emerging emerging emerging emerging high-net-worth drive multi-channel exposure.Major US asset manager namesBlackRock (BLK)Largest global asset manager ($11.5T AUM Q4 2024). Multi-year emerging operational scaling plus emerging emerging GIP infrastructure acquisition plus emerging emerging HPS private credit pending acquisition plus emerging emerging Preqin private market data acquisition. Multi-year emerging emerging Aladdin technology platform plus emerging emerging iShares ETF franchise.T. Rowe Price Group (TROW)Diversified active asset manager plus emerging emerging Oak Hill Advisors private credit plus emerging emerging Retirement Plan Services. Multi-year emerging active outflows plus emerging emerging operational scaling plus emerging emerging dividend aristocrat (38-year dividend growth).Invesco (IVZ)Diversified active plus emerging emerging passive (PowerShares ETFs) plus emerging emerging QQQ ETF (Nasdaq-100 leading ETF). Multi-year emerging operational restructuring plus emerging emerging cost discipline.Franklin Resources (BEN)Diversified Franklin Templeton plus emerging emerging Legg Mason acquisition integration plus emerging emerging Putnam Investments acquisition (closed January 2024) plus emerging emerging Western Asset Management. Multi-year emerging operational integration plus emerging emerging Western Asset SEC investigation.Affiliated Managers Group (AMG)Diversified multi-affiliate manager (revenue-share equity stakes in independent boutique managers). Multi-year emerging operational scaling plus emerging emerging affiliate diversification.Federated Hermes (FHI)Diversified money market plus equity plus fixed income plus alternative. Multi-year emerging money market AUM tailwind plus emerging emerging operational scaling.How institutional managers position around asset managersThree patterns appear across smart-money 13Fs:Pattern 1: Quality-compounder concentrationBLK-concentrated growth manager positions reflect quality compounding plus emerging emerging private market scaling thesis.Pattern 2: Active-recovery positioningTROW, BEN-concentrated value-discipline manager positions reflect active management recovery thesis.Pattern 3: Money-market positioningFHI-concentrated active manager positions reflect money market AUM tailwind thesis.How to read asset manager 13F positioningThree rules apply:Rule 1: Identify business mixActive vs passive vs private market have distinct dynamics.Rule 2: Watch flows trajectoryMulti-year flows drive AUM trajectory.Rule 3: Cross-check fee compressionMulti-year fee dynamics drive revenue beyond AUM.What asset manager positioning signalsQuality-compounder conviction. Concentrated BLK positions signal quality compounding thesis.Active-recovery conviction. Concentrated TROW positions signal active recovery thesis.Money-market conviction. Concentrated FHI positions signal money market tailwind thesis.For real-time tracking of asset manager 13F activity, see the institutional signals feed. ## FAQ ### What are the major US asset managers? Six major US asset managers: (1) BlackRock (BLK) — largest global ($11.5T AUM); (2) T. Rowe Price Group (TROW) — diversified active plus Oak Hill private credit; (3) Invesco (IVZ) — diversified plus PowerShares plus QQQ; (4) Franklin Resources (BEN) — Franklin Templeton plus Legg Mason plus Putnam; (5) Affiliated Managers Group (AMG) — multi-affiliate manager; (6) Federated Hermes (FHI) — money market plus diversified. ### How does active-vs-passive flow dynamics work? Multi-year passive index fund growth (Vanguard, BlackRock iShares, State Street SPDR) drives multi-decade active management share loss. US ETF AUM exceeded $10T in 2024 plus emerging passive equity share exceeded 50% in 2024. Multi-year active manager net outflows compound on market depreciation creating multi-year operational pressure. Reading flows data drives institutional positioning. ### What is fee compression? Multi-year fee compression drives asset manager economics. Active equity expense ratios declined from 1.0%+ (early 2000s) to 0.50-0.70% (2024). Passive equity expense ratios declined from 0.20% to 0.03-0.10%. Multi-year fee pressure compounds revenue impact beyond AUM dynamics. Multi-year fixed-income fee compression less aggressive than equity. Reading effective fee trajectory drives positioning. ### What is BlackRock's private market expansion? BlackRock private market expansion includes: (1) Global Infrastructure Partners acquisition closed October 2024 at $12.5B; (2) HPS Investment Partners pending acquisition announced December 2024 at $12B (private credit); (3) Preqin private market data acquisition closed (analytics platform); (4) Aladdin alternative assets platform expansion. Multi-year private market scaling drives institutional positioning. ### What is the Franklin Resources Western Asset situation? Franklin Resources subsidiary Western Asset Management Company faces SEC investigation announced 2024 plus emerging co-CIO Ken Leech leave of absence. Multi-year emerging operational disruption plus emerging emerging client outflows plus emerging emerging Western Asset macro opportunities strategy underperformance. Multi-year emerging operational response plus emerging emerging assets management trajectory drives institutional positioning. ### What signals asset manager cycle inflections? Four signals: (1) flow trajectory plus emerging active-passive dynamics; (2) effective fee trajectory plus emerging fee compression; (3) private market scaling plus emerging M&A activity; (4) operational discipline plus emerging cost discipline. Concentrated 13F changes around these signals reveal manager cycle reading. --- Source: 13F Insight — https://13finsight.com/learn/asset-manager-13f-blk-tro-decoder Author: Sarah Mitchell — https://13finsight.com/authors/sarah-mitchell Last updated: 2026-05-16T14:46:29.140Z