PORTFOLIO OF INVESTMENTS Tri-Continental Corporation, September 30, 2020 (Unaudited) (Percentages represent value of investments compared to net assets) Investments in securities Common Stocks 68.8% Common Stocks (continued) Issuer Shares Value ($) Issuer Shares Value ($) Communication Services 6.5% Multiline Retail 1.2% Diversified Telecommunication Services 1.6% Dollar General Corp. 7,700 1,614,074 AT&T, Inc. 250,000 7,127,500 Target Corp. 117,300 18,465,366 Verizon Communications, Inc. 331,900 19,744,731 Total 20,079,440 Total 26,872,231 Specialty Retail 2.1% Entertainment 1.0% Best Buy Co., Inc. 113,800 12,664,802 Activision Blizzard, Inc. 32,800 2,655,160 Home Depot, Inc. (The) 29,200 8,109,132 (a) Electronic Arts, Inc. 105,700 13,784,337 Lowe’s Companies, Inc. 75,100 12,456,086 Total 16,439,497 Total 33,230,020 Interactive Media & Services 3.5% Total Consumer Discretionary 119,100,164 (a) Alphabet, Inc., Class A 24,175 35,430,880 Consumer Staples 5.3% (a) Facebook, Inc., Class A 80,000 20,952,000 Food & Staples Retailing 0.6% Total 56,382,880 Kroger Co. (The) 286,400 9,711,824 Media 0.4% Food Products 1.2% Comcast Corp., Class A 100,000 4,626,000 General Mills, Inc. 176,200 10,868,016 Interpublic Group of Companies, Inc. (The) 85,100 1,418,617 JM Smucker Co. (The) 37,500 4,332,000 Total 6,044,617 Kraft Heinz Co. (The) 154,800 4,636,260 Total Communication Services 105,739,225 Total 19,836,276 Consumer Discretionary 7.4% Household Products 1.7% Hotels, Restaurants & Leisure 1.0% Kimberly-Clark Corp. 120,350 17,770,881 Domino’s Pizza, Inc. 7,700 3,274,656 Procter & Gamble Co. (The) 64,200 8,923,158 Extended Stay America, Inc. 325,000 3,883,750 Total 26,694,039 Hilton Worldwide Holdings, Inc. 58,500 4,991,220 Tobacco 1.8% Wyndham Destinations, Inc. 130,000 3,998,800 Altria Group, Inc. 381,400 14,737,296 Total 16,148,426 Philip Morris International, Inc. 192,500 14,435,575 Household Durables 0.9% Total 29,172,871 Newell Brands, Inc. 265,000 4,547,400 Total Consumer Staples 85,415,010 PulteGroup, Inc. 197,000 9,119,130 Energy 2.0% Total 13,666,530 Oil, Gas & Consumable Fuels 2.0% Internet & Direct Marketing Retail 2.2% Chevron Corp.(b) 98,000 7,056,000 (a) Amazon.com, Inc. 8,970 28,244,108 ConocoPhillips Co. 227,100 7,457,964 eBay, Inc. 148,400 7,731,640 HollyFrontier Corp. 305,700 6,025,347 Total 35,975,748 Valero Energy Corp. 100,300 4,344,996 Williams Companies, Inc. (The) 400,000 7,860,000 Total 32,744,307 Total Energy 32,744,307 Tri-Continental Corporation | Quarterly Report 2020 1 PORTFOLIO OF INVESTMENTS (continued) Tri-Continental Corporation, September 30, 2020 (Unaudited) Common Stocks (continued) Common Stocks (continued) Issuer Shares Value ($) Issuer Shares Value ($) Financials 8.5% Health Care Equipment & Supplies 1.3% Banks 2.9% Abbott Laboratories 153,151 16,667,423 Bank of America Corp. 84,700 2,040,423 Dentsply Sirona, Inc. 28,160 1,231,437 Citigroup, Inc. 440,900 19,007,199 Medtronic PLC 34,005 3,533,800 Citizens Financial Group, Inc. 337,500 8,532,000 Total 21,432,660 JPMorgan Chase & Co. 80,000 7,701,600 Health Care Providers & Services 1.6% KeyCorp 335,000 3,996,550 DaVita, Inc.(a) 74,900 6,415,185 PNC Financial Services Group, Inc. (The) 57,500 6,319,825 HCA Healthcare, Inc. 111,200 13,864,416 Total 47,597,597 Humana, Inc. 13,400 5,546,126 Capital Markets 3.6% Total 25,825,727 Ares Capital Corp. 575,000 8,021,250 Pharmaceuticals 4.6% Bank of New York Mellon Corp. (The) 131,600 4,519,144 Amryt Pharma PLC, ADR(a) 287,679 3,538,451 BlackRock, Inc. 22,250 12,538,988 Bristol-Myers Squibb Co. 235,500 14,198,295 Morgan Stanley 160,000 7,736,000 Johnson & Johnson 209,500 31,190,360 S&P Global, Inc. 40,100 14,460,060 Merck & Co., Inc. 142,600 11,828,670 State Street Corp. 114,600 6,799,218 Mylan NV(a) 620,200 9,197,566 T. Rowe Price Group, Inc. 8,800 1,128,336 Pfizer, Inc. 105,000 3,853,500 TCG BDC, Inc. 250,000 2,227,500 Total 73,806,842 Total 57,430,496 Total Health Care 146,407,121 Insurance 1.3% Industrials 5.6% Allstate Corp. (The) 150,800 14,196,312 Aerospace & Defense 1.3% MetLife, Inc. 180,500 6,709,185 Lockheed Martin Corp. 39,900 15,292,872 Total 20,905,497 Raytheon Technologies Corp. 95,000 5,466,300 Mortgage Real Estate Investment Trusts (REITS) 0.7% Total 20,759,172 Blackstone Mortgage Trust, Inc. 135,000 2,965,950 Air Freight & Logistics 0.5% Starwood Property Trust, Inc. 525,000 7,922,250 United Parcel Service, Inc., Class B 50,000 8,331,500 Total 10,888,200 Building Products 0.0% Total Financials 136,821,790 Fortune Brands Home & Security, Inc. 8,572 741,649 Health Care 9.1% Construction & Engineering 0.1% Biotechnology 1.6% Quanta Services, Inc. 25,300 1,337,358 AbbVie, Inc. 146,920 12,868,723 Electrical Equipment 1.6% Alexion Pharmaceuticals, Inc.(a) 39,970 4,573,767 Eaton Corp. PLC 211,900 21,620,157 Amgen, Inc. 8,162 2,074,454 Rockwell Automation, Inc. 16,300 3,597,084 BioMarin Pharmaceutical, Inc.(a) 34,000 2,586,720 Total 25,217,241 Vertex Pharmaceuticals, Inc.(a) 11,900 3,238,228 Total 25,341,892 2 Tri-Continental Corporation | Quarterly Report 2020 PORTFOLIO OF INVESTMENTS (continued) Tri-Continental Corporation, September 30, 2020 (Unaudited) Common Stocks (continued) Common Stocks (continued) Issuer Shares Value ($) Issuer Shares Value ($) Machinery 0.8% Software 5.6% Caterpillar, Inc. 42,500 6,338,875 Adobe, Inc.(a) 28,000 13,732,040 Cummins, Inc. 9,142 1,930,425 Autodesk, Inc.(a) 60,400 13,953,004 Illinois Tool Works, Inc. 21,000 4,057,410 Fortinet, Inc.(a) 105,100 12,381,831 Total 12,326,710 Microsoft Corp. 210,500 44,274,465 Professional Services 0.1% NortonLifeLock, Inc. 300,000 6,252,000 Robert Half International, Inc. 35,600 1,884,664 Total 90,593,340 Road & Rail 1.2% Technology Hardware, Storage & Peripherals 3.4% (b) CSX Corp. 70,900 5,506,803 Apple, Inc. 382,300 44,274,163 Norfolk Southern Corp. 33,500 7,168,665 HP, Inc. 315,000 5,981,850 Union Pacific Corp. 37,000 7,284,190 Seagate Technology PLC 90,000 4,434,300 Total 19,959,658 Total 54,690,313 Total Industrials 90,557,952 Total Information Technology 295,224,376 Information Technology 18.3% Materials 1.6% Communications Equipment 1.6% Chemicals 1.2% Arista Networks, Inc.(a) 5,100 1,055,343 Dow, Inc. 170,000 7,998,500 Cisco Systems, Inc. 615,700 24,252,423 LyondellBasell Industries NV, Class A 156,700 11,045,783 Total 25,307,766 Total 19,044,283 Electronic Equipment, Instruments & Components 0.8% Containers & Packaging 0.1% Corning, Inc. 260,000 8,426,600 International Paper Co. 35,400 1,435,116 Vishay Intertechnology, Inc. 275,000 4,281,750 Metals & Mining 0.3% Total 12,708,350 Newmont Corp. 26,100 1,656,045 IT Services 2.8% Nucor Corp. 87,200 3,911,792 International Business Machines Corp. 65,000 7,908,550 Total 5,567,837 MasterCard, Inc., Class A 69,300 23,435,181 Total Materials 26,047,236 VeriSign, Inc.(a) 65,400 13,397,190 Real Estate 2.6% Visa, Inc., Class A 5,700 1,139,829 Equity Real Estate Investment Trusts (REITS) 2.6% Total 45,880,750 Alexandria Real Estate Equities, Inc. 37,500 6,000,000 Semiconductors & Semiconductor Equipment 4.1% American Tower Corp. 23,790 5,750,757 Broadcom, Inc. 63,600 23,170,752 Crown Castle International Corp. 26,500 4,412,250 Intel Corp. 387,900 20,085,462 Duke Realty Corp. 107,500 3,966,750 KLA Corp. 22,700 4,397,898 Equinix, Inc. 5,850 4,446,760 QUALCOMM, Inc. 86,500 10,179,320 Medical Properties Trust, Inc. 465,000 8,197,950 Texas Instruments, Inc. 57,500 8,210,425 Prologis, Inc. 62,600 6,298,812 Total 66,043,857 SBA Communications Corp. 5,100 1,624,248 Weyerhaeuser Co. 71,100 2,027,772 Total 42,725,299 Total Real Estate 42,725,299 Tri-Continental Corporation | Quarterly Report 2020 3 PORTFOLIO OF INVESTMENTS (continued) Tri-Continental Corporation, September 30, 2020 (Unaudited) Common Stocks (continued) Convertible Bonds (continued) Issuer Shares Value ($) Coupon Principal Issuer Rate Amount ($) Value ($) Utilities 1.9% Independent Energy 0.0% Electric Utilities 1.7% Chesapeake Energy Corp.(d) Edison International 120,000 6,100,800 09/15/2026 0.000% 9,000,000 293,400 Entergy Corp. 51,700 5,094,001 Leisure 0.6% Exelon Corp. 87,800 3,139,728 NCL Corp., Ltd.(c) NRG Energy, Inc. 301,200 9,258,888 08/01/2025 5.375% 4,500,000 5,268,037 Pinnacle West Capital Corp. 57,500 4,286,625 Royal Caribbean Cruises Ltd(c) Total 27,880,042 06/15/2023 4.250% 4,200,000 4,901,125 Total 10,169,162 Independent Power and Renewable Electricity Producers 0.0% AES Corp.