Catalyst Bancorp, Inc.
Catalyst Bancorp, Inc. (CLST) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · CLST · as of Mar 31, 2025
Ownership Breakdown
20
Institutional Holders
▼ 3 vs Q4
$8.89M
Total Inst. Value
▼ $3.27M vs Q4
4.05M
Shares Outstanding
freeFloat 83.04%
762,962
13F Shares Held
▼ 382,559 vs Q4
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
CLST largest shareholders · institutional ownership
Q1 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
VANGUARD GROUP INC savings institution, federally chartered | 248.8K | 6.79% | 6.79% | $2.90B | May 9, 2025 | ▼ 1.6K |
GRAHAM CAPITAL WEALTH MANAGEMENT, LLC savings institution, federally chartered | 182.6K | 4.99% | 4.99% | $2.13B | May 7, 2025 | ▲ 110 |
BLACKROCK, INC. savings institution, federally chartered | 65.7K | 1.79% | 1.79% | $765.52M | May 2, 2025 | ▼ 511 |
STILWELL VALUE LLC savings institution, federally chartered | 40.0K | 1.09% | 1.09% | $465.89M | May 14, 2025 | — held |
ALLIANCEBERNSTEIN L.P. savings institution, federally chartered | 39.3K | 1.07% | 1.07% | $457.61M | May 15, 2025 | ▼ 71.3K |
GEODE CAPITAL MANAGEMENT, LLC savings institution, federally chartered | 39.1K | 1.07% | 1.07% | $456.20M | May 13, 2025 | ▲ 680 |
MONTZ HARCUS WEALTH MANAGEMENT LLC savings institution, federally chartered | 30.0K | 81.91% | 81.91% | $349.50M | Apr 21, 2025 | NEW |
RENAISSANCE TECHNOLOGIES LLC savings institution, federally chartered | 22.9K | 62.53% | 62.53% | $266.79M | May 14, 2025 | ▼ 2.4K |
NEWEDGE ADVISORS, LLC savings institution, federally chartered | 21.5K | 58.70% | 58.70% | $250.47M | May 15, 2025 | — held |
SUMMIT FINANCIAL WEALTH ADVISORS, LLC savings institution, federally chartered | 18.2K | 49.69% | 49.69% | $212.03M | May 14, 2025 | ▼ 6.0K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q1 2025 vs prior quarter
Q1 2025
3
Increased
+792 shares2
New Positions
first time holders7
Decreased
−83.5K shares5
Sold Out
fully exitedNet shares change (top 50)
82.7K
+792 / −83.5K
Net new holders
-7
2 new / 5 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
CLST insider trading · insider activity
Source: SEC Form 4
Insiders have been net buyers of shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
2
Buy transactions
3
Sell transactions
0.67
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Scruggins Matthew L. director | Dec 18, 2025 | Gift | 332 | — | — | 24.9K | Form 4 ↗ |
Kleiser Kirk E. director | Oct 28, 2025 | Purchase | 4,650 | $13.41 | $62.4K | 17.7K | Form 4 ↗ |
Kleiser Kirk E. director | Oct 28, 2025 | Purchase | 100 | $13.40 | $1.3K | 13.1K | Form 4 ↗ |
Kleiser Kirk E. director | Oct 28, 2025 | Sale | 1,500 | $13.43 | $20.1K | 3.3K | Form 4 ↗ |
Kleiser Kirk E. director | Oct 28, 2025 | Sale | 2,500 | $13.39 | $33.5K | 750 | Form 4 ↗ |
Kleiser Kirk E. director | Oct 28, 2025 | Sale | 750 | $13.40 | $10.0K | 0 | Form 4 ↗ |
Quebedeaux Amanda B. Chief Operations Officer | Sep 1, 2025 | Tax Withhold | 553 | $12.83 | $7.1K | 9.3K | Form 4 ↗ |
Bourque Jacques L.J. CHIEF FINANCIAL OFFICER | Sep 1, 2025 | Tax Withhold | 131 | $12.83 | $1.7K | 3.6K | Form 4 ↗ |
Zanco Joseph B PRESIDENT AND CEO | Sep 1, 2025 | Tax Withhold | 1,158 | $12.83 | $14.9K | 32.9K | Form 4 ↗ |
Kleiser Kirk E. director | Jun 11, 2025 | Purchase | 200 | $12.25 | $2.4K | 13.0K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Catalyst Bancorp, Inc. (CLST) is primarily owned by institutional investors, who hold approximately 18.8% of total shares outstanding. Company insiders own approximately 16.96%, while retail and public investors account for the remaining 64.21%.
The largest institutional shareholder of Catalyst Bancorp, Inc. is VANGUARD GROUP INC, holding approximately 248,797 shares — equal to 6.79% of outstanding shares — as of March 31, 2025.
A total of 20 institutional investors currently hold CLST stock, with a combined institutional value of approximately $8,888,681 as of the most recent 13F filing period.
Frequently asked questions
CLST ownershipCatalyst Bancorp, Inc. (CLST) is primarily owned by institutional investors, who hold approximately 18.8% of shares. The largest shareholder is VANGUARD GROUP INC with a 6.79% stake. Company insiders hold 16.96%. Data sourced from SEC Form 13F as of March 31, 2025.