CIK: 0002026079
Total reported value
$1.0B
Reporting period: 2026-03-31 · Number of holdings: 5
Morgan Stanley Institutional Investment Advisors LLC disclosed 5 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $1.0B and a quarterly turnover rate of 9.2%.
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Morgan Stanley Institutional Investment Advisors LLC's disclosed holdings carry a Herfindahl concentration index of 0.298 — mathematically equivalent to about 3 equally-sized positions, close to its 5 actual disclosed holdings. Value is spread relatively evenly across the portfolio rather than concentrated in a handful of names.
Position sizes are fairly uniform across the portfolio (a coefficient of variation of 0.78), suggesting a disciplined, rules-based approach to how much capital goes into each idea.
Recent activity leans toward adding more aggressively to already-large existing positions than to newly initiated ones (a 15.1 percentage-point tilt) — a pattern consistent with a momentum-following approach.
Trim WM
-3.7% $2.5M
Add OII
-12.5% $27.6M
Add NHC
+0.0% $23.5M
Add ENB
-2.7% $37.2M
Trim NHI
-0.2% $334.9K
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | ENB | Enbridge INC | Stock-Energy | 38.82% | +0.19% | -2.66% | |
| 2 | WM | Waste Management INC | Stock-Industrials | 32.77% | -2.90% | -3.67% | |
| 3 | NHC | National Healthcare CORP | Stock-Other | 16.00% | +0.95% | +0.00% | |
| 4 | OII | Oceaneering Intl INC | Stock-Energy | 11.81% | +1.78% | -12.52% | |
| 5 | NHI | Natl Health Investors INC | Stock-Other | 0.60% | -0.02% | -0.18% |
Performance for Q3 2026
-3.9%
Performance Last 4 Quarters
+10%
Based on 49% of reported portfolio value with available pricing
Morgan Stanley Institutional Investment Advisors LLC's most significant position changes for 2026-03-31: Trim: Waste Management INC (WM) — shares -3.67%; Trim: Oceaneering Intl INC (OII) — shares -12.52%; Add: National Healthcare CORP (NHC) — shares +0.00%; Trim: Enbridge INC (ENB) — shares -2.66%; Trim: Natl Health Investors INC (NHI) — shares -0.18%.
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | OII | Oceaneering Intl INC | +1.8% | -12.52% | Trim |
| 2 | NHC | National Healthcare CORP | +1% | +0.00% | Add |
| 3 | ENB | Enbridge INC | +0.2% | -2.66% | Trim |
| 4 | NHI | Natl Health Investors INC | 0% | -0.18% | Trim |
| 5 | WM | Waste Management INC | -2.9% | -3.67% | Trim |
| Period | Filed | Type | EDGAR |
|---|---|---|---|
| 2026-03-31 | 2026-05-14 | 13F-HR | View on EDGAR |
| 2025-12-31 | 2026-02-13 | 13F-HR | View on EDGAR |
| 2025-09-30 | 2025-11-13 | 13F-HR | View on EDGAR |
| 2025-06-30 | 2025-08-14 | 13F-HR | View on EDGAR |
| 2025-03-31 | 2025-05-14 | 13F-HR | View on EDGAR |
| 2024-12-31 | 2025-02-13 | 13F-HR | View on EDGAR |
| 2024-09-30 | 2024-11-12 | 13F-HR | View on EDGAR |
| 2024-06-30 | 2024-08-12 | 13F-HR | View on EDGAR |
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