Latest Period
Q2 2026
Security Snapshot
Catalyst Bancorp, Inc. - Common Stock, par value $0.01 per share (CLST) Institutional Ownership
CUSIP: 14888L101
13F Institutional Holders and Ownership History from Q4 2021 to Q2 2026
Institutions Reporting
22
Shares (Excl. Options)
1,113,039
Price
$16.51
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- Security type / class
- Equity / Common Stock, par value $0.01 per share
- Symbol
- CLST on Nasdaq
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 1,113,039
- Total 13F value
- $18,379,561
- Portfolio coverage rank
- 0%
- Share change
- +108,622
- Value change
- +$1,794,821
- Number of holders
- 22
- Shares outstanding
- 4,045,389
- SEC-reported price per share
- $16.51
- Insider filing price
- $16.51
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- CLST - Catalyst Bancorp, Inc. - Common Stock, par value $0.01 per share is tracked under CUSIP 14888L101.
- 22 institutions reported positions in Q2 2026.
- 4 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 23 to 22 between Q1 2026 and Q2 2026.
- SEC-reported value moved from $16,607,746 to $18,379,561.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 22 institutions filings for Q2 2026.
Security key
14888L101
Latest holder period
Q2 2026
13F holders
22
13D/G owners
4
CIK / CUSIP context first
Open Q2 2026 holders
CLST full holder history
Catalyst Bancorp, Inc. SEC filings
Catalyst Bancorp, Inc. company facts
Catalyst Bancorp, Inc. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 14888L101:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
4
Security
CLST
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Catalyst Bancorp, Inc. Employee Stock Ownership Plan | 10% | +2% | $6,564,472 | -$32,051 | 416,792 | -0.49% | Catalyst Bancorp, Inc. Employee Stock Ownership Plan | 31 Dec 2025 |
| Stilwell Joseph | 9% | +4.4% | $6,011,043 | +$255,822 | 364,085 | +4.4% | Stilwell Activist Fund, L.P. | 27 Aug 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | 5.3% | $3,568,614 | 215,496 | Vanguard Capital Management | 31 Mar 2026 | |||
| ALLIANCEBERNSTEIN L.P. | 3.2% | $1,649,573 | 143,691 | AllianceBernstein L.P. | 30 Sep 2024 |
As of 30 Jun 2026, 22 institutional investors reported holding 1,113,039 shares of Catalyst Bancorp, Inc. - Common Stock, par value $0.01 per share (CLST). This represents 28% of the company’s total 4,045,389 outstanding shares.
13F concentration
Top 24 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
30%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| STILWELL VALUE LLC | 9% | 364,085 | +29% | 3.4% | $6,011,043 |
| GRAHAM CAPITAL WEALTH MANAGEMENT, LLC | 4.8% | 195,939 | -0.68% | 2.5% | $3,234,953 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4.7% | 189,486 | -0.34% | 0% | $3,128,414 |
| BlackRock, Inc. | 1.7% | 68,797 | +4.8% | 0% | $1,135,839 |
| ALLIANCEBERNSTEIN L.P. | 1.5% | 61,066 | +93% | 0% | $1,011,253 |
| GEODE CAPITAL MANAGEMENT, LLC | 0.85% | 34,571 | +0.24% | 0% | $571,001 |
| Montz Harcus Wealth Management LLC | 0.74% | 30,000 | 0% | 0.18% | $495,300 |
| Kestra Advisory Services, LLC | 0.62% | 25,000 | 0% | 0% | $412,750 |
| VANGUARD FIDUCIARY TRUST CO | 0.6% | 24,351 | +0.56% | 0% | $402,035 |
| RENAISSANCE TECHNOLOGIES LLC | 0.57% | 23,100 | -0.43% | 0% | $381,381 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 0.57% | 23,078 | +113% | 0% | $381,018 |
| CITADEL ADVISORS LLC | 0.36% | 14,582 | +12% | 0% | $240,749 |
| Summit Financial Wealth Advisors, LLC | 0.34% | 13,600 | -25% | 0.03% | $224,536 |
| NewEdge Advisors, LLC | 0.28% | 11,500 | -47% | 0% | $189,865 |
| BASSWOOD CAPITAL MANAGEMENT, L.L.C. | 0.28% | 11,246 | 0% | 0.01% | $185,671 |
| WITTENBERG INVESTMENT MANAGEMENT, INC. | 0.26% | 10,669 | -22% | 0.06% | $176,145 |
| RAFFLES ASSOCIATES LP | 0.26% | 10,555 | 0% | 0.15% | $174,263 |
| Vanguard Global Advisers, LLC | 0.03% | 1,140 | 0% | 0% | $18,821 |
| American Capital Advisory, LLC | 0% | 125 | 0% | 0% | $2,064 |
| Golden State Wealth Management, LLC | 0% | 75 | 0% | 0% | $1,238 |
| UBS Group AG | 0% | 68 | +45% | 0% | $1,123 |
| BNP PARIBAS FINANCIAL MARKETS | 0% | 6 | 0% | 0% | $99 |
| CITIGROUP INC | 0% | 0 | -100% | $0 | |
| Knott David M Jr | 2.8% | 114,000 | 0% | $3,583,020 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
19
Latest
Q2 2026
Rows shown
1-19 of 19
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q2 | 1,113,039 | $18,379,561 | +$1,794,821 | $16.51 | 22 |
| 2026 Q1 | 1,004,417 | $16,607,746 | -$2,267,526 | $16.56 | 23 |
| 2025 Q4 | 1,152,607 | $18,153,761 | +$6,013,361 | $15.75 | 19 |
| 2025 Q3 | 771,452 | $10,155,605 | -$135,298 | $13.15 | 19 |
| 2025 Q2 | 783,915 | $9,712,858 | +$288,735 | $12.39 | 19 |
| 2025 Q1 | 762,962 | $8,888,681 | -$1,448,183 | $11.65 | 20 |
| 2024 Q4 | 886,454 | $10,430,562 | -$450,605 | $11.77 | 22 |
| 2024 Q3 | 927,304 | $10,571,049 | +$671,205 | $11.40 | 18 |
| 2024 Q2 | 886,788 | $10,269,004 | -$350,155 | $11.58 | 17 |
| 2024 Q1 | 927,290 | $10,988,528 | +$703,742 | $11.85 | 19 |
| 2023 Q4 | 871,551 | $9,459,913 | +$86,052 | $10.84 | 18 |
| 2023 Q3 | 863,199 | $10,385,597 | +$73,649 | $12.06 | 15 |
| 2023 Q2 | 857,994 | $9,463,675 | +$126,672 | $11.03 | 14 |
| 2023 Q1 | 846,127 | $9,730,465 | +$721,385 | $11.50 | 15 |
| 2022 Q4 | 783,554 | $9,953,221 | +$153,379 | $12.70 | 17 |
| 2022 Q3 | 770,108 | $9,565,000 | +$263,947 | $12.40 | 12 |
| 2022 Q2 | 748,836 | $10,133,000 | -$71,018 | $13.53 | 11 |
| 2022 Q1 | 742,768 | $10,139,000 | +$563,739 | $13.65 | 12 |
| 2021 Q4 | 712,467 | $9,740,000 | +$9,330,000 | $13.68 | 12 |