Morgan Stanley Institutional Investment Advisors LLC

In its 13F for Q1 2026 (holdings as of March 31, 2026, filed May 14, 2026), Morgan Stanley Institutional Investment Advisors LLC reported 5 stock positions worth $1.0 billion. Its top holding was Enbridge (ENB) at 38.8% of the portfolio, followed by Waste Management (WM, 32.8%) and National Healthcare (NHC, 16.0%). Compared with Q4 2025, it added to 1 and reduced 4. The biggest buy was National Healthcare (NHC, shares −0%) and the biggest sale Waste Management (WM, shares −4%).

Most Recent 13F
Q2 2026
Location
GREENWOOD VILLAGE, CO
CIK
0002026079
Portfolio Value
$1.0B (Q1 2026)
SEC Filing
0002026079-26-000004 ↗ filed May 14, 2026

Holdings Value

0$500.0M$1.0B$1.5B Q2 2024: $312.3M Q2 2024 Q3 2024: $445.1M Q3 2024 Q4 2024: $436.8M Q4 2024 Q1 2025: $426.2M Q1 2025 Q2 2025: $808.4M Q2 2025 Q3 2025: $832.0M Q3 2025 Q4 2025: $946.0M Q4 2025 Q1 2026: $1.0B $1.0B Q1 2026 Q2 2026: $1.1B Q2 2026

Holdings 5 stocks · $1.0B
ENB Enbridge Inc. 38.82% 7,437,023 $402.6M Reduce -2.7%
WM Waste Management Inc. 32.77% 1,479,273 $339.9M Reduce -3.7%
NHC National Healthcare Corp. 16.00% 1,038,804 $165.9M Add +0.0%
OII Oceaneering Intl Inc. 11.81% 3,453,005 $122.5M Reduce -12.5%
NHI Natl Health Investors Inc. filed as NATIONAL HEALTH INVS INC 0.60% 76,893 $6.2M Reduce -0.2%

Portfolio Sells Q4 2025 → Q1 2026
WM Waste Management Inc. Reduce -3.7% 32.77% −2.89
NHI Natl Health Investors Inc. Reduce -0.2% 0.60% −0.02
ENB Enbridge Inc. Reduce -2.7% 38.82% +0.19
OII Oceaneering Intl Inc. Reduce -12.5% 11.81% +1.78

Portfolio Buys Q4 2025 → Q1 2026
NHC National Healthcare Corp. Add +0.0% 16.00% +0.94

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 5$1.1BENB, WM, NHC, OII, NHI
Q1 2026 5$1.0BENB, WM, NHC, OII, NHI
Q4 2025 5$946.0MENB, WM, NHC, OII, NHI
Q3 2025 3$832.0MENB, WM, NHC
Q2 2025 3$808.4MWM, ENB, NHC
Q1 2025 3$426.2MENB, NHC, EXE
Q4 2024 3$436.8MENB, NHC, SWN
Q3 2024 3$445.1MENB, NHC, SWN
Q2 2024 2$312.3MENB, SWN