HARTFORD INVESTMENT MANAGEMENT CO
SEC Form 13F institutional filer · CIK 0000922439
13F-HR · 474 reported holdings · 2026-03-31
SEC-registered institutional investment manager.
Reported long-US-equity value
$3.13B
Top-10 concentration
37.1%
HARTFORD INVESTMENT MANAGEMENT CO — $3.13B AUM allocation strategy
HARTFORD INVESTMENT MANAGEMENT CO files SEC Form 13F and reports $3.13B of long US equity value across 474 reported holdings for 2026-03-31.
Its largest sector bet is Information Technology 22.1%, followed by Communication Services 8.5% and Consumer Discretionary 5.6%.
The top 10 holdings account for 37% of reported value — a broadly spread portfolio. The sector and industry splits below are of the same reported value. Track quarter-over-quarter adds, trims, new positions and exits below — sourced from SEC 13F filings, public domain.
HARTFORD INVESTMENT MANAGEMENT CO — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$3.13B
total across 474 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
37% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$HBAN +25.6K sh · +$245K+$FITB +13.2K sh · +$601K+$INTC +8.54K sh · +$2.25M
Biggest trims (shares)
−$NVDA −19.1K sh · −$20.3M−$AAPL −17K sh · −$19.7M−$T −10.5K sh · +$1.4M
Sector allocation (share of reported value)
each slice is a share of the reported long-US-equity value — smaller sectors and the rest of the book roll into “Other holdings”
Qtr shift = share-point change vs the prior quarter's filing — first period tracked for this filer; the column fills in with the next quarterly refresh.
Industry allocation (share of reported value)
- Semiconductors10.4%—
- Interactive Media & Services7.8%—
- Technology Hardware, Storage & Peripherals6.8%—
- Systems Software5.0%—
- Broadline Retail3.7%—
- Pharmaceuticals2.4%—
- Integrated Oil & Gas2.0%—
- Automobile Manufacturers1.9%—
- Other holdings60.1%—
the finer GICS cut of the same book — same denominator — smaller industries roll into “Other holdings”
Qtr shift = share-point change vs the prior quarter's filing — first period tracked for this filer; the column fills in with the next quarterly refresh.
Top S&P 500 holdings
10 of 10 rows · sorted by Value ↓
| Ticker | Holding | Shares | Value | Δ QoQ | Weight |
|---|---|---|---|---|---|
| $NVDA | NVIDIA Corporation | 1.38M | $241M | -19.1K | 7.7% |
| $AAPL | Apple Inc | 837K | $212M | -17K | 6.8% |
| $MSFT | Microsoft Corporation | 423K | $157M | -6.2K | 5.0% |
| $AMZN | Amazon.com Inc | 557K | $116M | -5.37K | 3.7% |
| $GOOG | Alphabet Inc. Class C Capital Stock | 332K | $95.4M | -4.28K | 3.0% |
| $AVGO | Broadcom Inc | 270K | $83.6M | -2.62K | 2.7% |
| $GOOGL | Alphabet Inc | 267K | $76.5M | -2.07K | 2.4% |
| $META | Meta Platforms Inc | 125K | $71.3M | -1.17K | 2.3% |
| $TSLA | Tesla Inc | 160K | $59.6M | -2.05K | 1.9% |
| $BRK.B | Berkshire Hathaway Inc.-Class B | 105K | $50.1M | -1.43K | 1.6% |
…and 464 more holdings in the full 13F filing (top positions only shown).
SEC Form 13F data sets · public domain · 45-day filing lag · >$100M AUM managers · as reported
← All 13F filers·← QuantOrb.pro
How to read Δ QoQ — the five insight categories, and the caveats
The categories. Analysts, quants and retail traders look past total portfolio value to isolate actionable signals. Five categories matter.
Conviction & concentration shifts
New positions vs complete exits — a brand-new stock signals high conviction; a full liquidation suggests a broken thesis or tax-loss harvesting. Aggressive sizing — look at share count, not dollars: a 20% share increase during a drawdown is strong dip-buying. Concentration — a narrowing top-5/10 means conviction; spreading capital across more names means hedging.
Sector & macro allocation rotations
Aggregating Δ QoQ moves across sectors shows where smart money is leaning in or sneaking out — rotating out of growth into defensives or energy, for example. The fund's total long equity exposure quarter-over-quarter is a proxy for overall institutional risk appetite.
Crowding & smart-money consensus
When several managers initiate or expand the same stock in the same quarter, that is institutional consensus. Contrarian reads: top pickers buying hard into a beaten-down name the market is selling.
Derivative & option overlays
Reported call/put changes indicate whether managers are adding downside hedges or leveraging upside exposure. Note: a long increase may be half of a market-neutral pair trade.
Who reads this
| Retail "cloners" | High-conviction ideas to replicate ~45 days after quarter-end. |
| Corporate IR | Which funds bought or dumped the stock, before the next call. |
| Quant / algo traders | Cross-sectional factor inputs: flow, momentum, ownership. |
Four caveats before you trade on it
- 45-day lag — holdings are quarter-end; positions may already be closed.
- Long-only — 13Fs miss shorts, pair trades and cash.
- No non-US / fixed income — the picture is US equities plus options.
- Corporate actions — splits and spinoffs distort raw share deltas.
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