FundWatcher
COCRX
Columbia Convertible Securities Fund
COLUMBIA FUNDS SERIES TRUST

Portfolio concentration

As of February 28, 2026 · N-PORT
Holdings
115
Top-10 weight
24.95%
Effective holdings ?
77
Crowding ?
66.3

Holdings

As of February 28, 2026 · N-PORT
#SecurityTickerSharesValue% of fund
1 Lumentum Holdings Inc., Conv. LITE 19,000,000 $72.65M 4.57%
2 COLUMBIA SHORT TERM CASH FUND — 54,330,699 $54.32M 3.42%
3 WESTERN DIGITAL CORPORATION SR UNSEC CV 3.0% 11-15-28 WDC 6,500,000 $48.24M 3.04%
4 BLOOM ENERGY CORP CONV 0% 11/15/2030 144A BE 35,000,000 $41.12M 2.59%
5 Boeing Co. (The), Conv. Pfd. — 550,000 $39.95M 2.51%
6 LYV 2.875 01/15/30 LYV 33,000,000 $36.96M 2.33%
7 Bank of America Corp., Series L, Conv. Pfd. BACPL 29,648 $36.85M 2.32%
8 NEXTERA ENERGY INC PREFERRED STOCK 11/27 7.234 NEEPT 450,000 $23.47M 1.48%
9 IONS 0 12/01/30 IONS 19,000,000 $20.91M 1.32%
10 Akamai Technologies, Inc., Convertible — 16,500,000 $20.66M 1.30%
11 Oracle Corp., Series D — 450,000 $20.64M 1.30%
12 STX 3.5 06/01/28 STX 4,000,000 $19.73M 1.24%
13 SMTC 0 10/15/30 SMTC 16,000,000 $19.26M 1.21%
14 SUPER MICRO COMPUTER INC CONV 3.5% 03/01/2029 SMCI 20,000,000 $18.57M 1.17%
15 CRWV 1.75 12/01/31 CRWV 18,000,000 $18.56M 1.17%
16 MTSI 0 12/15/29 — 11,500,000 $18.24M 1.15%
17 JAZZ INVTS I LTD CONV 3.125% 09/15/2030 JAZZ 12,000,000 $17.13M 1.08%
18 NEXTERA ENERGY INC PREFFERD STOCK NEEPS 300,000 $17.09M 1.08%
19 GUARDANT HEALTH INC CONV 0% 05/15/2033 144A GH 16,000,000 $17.06M 1.07%
20 ZTS 0.25 06/15/29 ZTS 16,000,000 $16.76M 1.05%
21 BWX Technologies, Inc., Convertible BWXT 16,000,000 $16.69M 1.05%
22 Welltower OP, LLC, Convertible WELL 10,000,000 $16.57M 1.04%
23 CHKP 0 12/15/30 CHKP 17,000,000 $16.18M 1.02%
24 VSE CORP 5.75% PC 02/01/2029 — 277,500 $16.08M 1.01%
25 RIVN 3.625 10/15/30 RIVN 16,250,000 $15.93M 1.00%
26 WULF 1 09/01/31 WULF 10,400,000 $15.87M 1.00%
27 NET 0 06/15/30 NET 15,000,000 $15.73M 0.99%
28 MKS INC SR UNSECURED 06/30 1.25 MKSI 9,000,000 $15.66M 0.99%
29 HALOZYME THERAPEUTICS INC CONV 0.875% 11/15/2032 144A HALO 14,850,000 $15.40M 0.97%
30 The Southern Company STHNU 275,000 $14.74M 0.93%
31 WT 4.625 08/15/30 WT 12,000,000 $14.22M 0.89%
32 Synaptics, Inc., Convertible SYNA 11,500,000 $13.18M 0.83%
33 CMS Energy Corporation, Convertible CMS 11,500,000 $13.07M 0.82%
34 Novanta Inc PREFERRED STOCK NOVT 220,000 $12.97M 0.82%
35 MICROCHIP TECHNOLOGY INC SER A 7.5% PC 03/15/2028 MCHPP 7 1/2 200,000 $12.97M 0.82%
36 LNT 3 1/4 05/30/28 LNT 12,000,000 $12.82M 0.81%
37 FIRSTENERGY CORP SR UNSECURED 144A 01/31 3.875 FE 11,000,000 $12.80M 0.81%
38 TRIP.COM GROUP LTD SR UNSECURED 06/29 0.75 TCOM 12,000,000 $12.67M 0.80%
39 BRUKER CORP SER A PC BRKR 40,000 $12.60M 0.79%
40 AVAV 0 07/15/30 AVAV 11,000,000 $12.60M 0.79%
41 OSI SYSTEMS INC SR UNSECURED 144A 02/31 0.5 OSIS 11,880,000 $12.59M 0.79%
42 PPL Capital Funding, Inc., Convertible PPL 12,000,000 $12.56M 0.79%
43 WEC ENERGY GROUP INC SR UNSECURED 06/29 4.375 WEC 10,000,000 $12.50M 0.79%
44 NVMI 0 09/15/30 NVMI 8,000,000 $12.45M 0.78%
45 NCLH 0.75 09/15/30 NCLH 12,000,000 $12.43M 0.78%
46 CYTOKINETICS INC SR UNSECURED 144A 10/31 1.75 CYTK 10,000,000 $12.43M 0.78%
47 BARCLAYS BANK PLC SR UNSECURED 02/29 1 BACR 12,000,000 $12.32M 0.78%
48 Nebius Group NV 1.0%, Due 09/15/2030 NBIS 12,000,000 $12.25M 0.77%
49 LIGAND PHARMACEUTICALS INC CONV 0.75% 10/01/2030 144A LGND 10,000,000 $12.14M 0.76%
50 LNTH 2.625 12/15/27 LNTH 10,000,000 $11.96M 0.75%
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