Filed: 4/20/2026ACC: 0001193125-26-162911
📋 What this filing means
YORKTOWN MANAGEMENT & RESEARCH CO INC filed this quarterly 13F‑HR report disclosing 214 equity positions with a total reported market value of $119.55M. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
214
Positions
$119.55M
Total AUM (reported)
1.73M
Total Shares
Allocation by class
COM$75.06M62.8%
CL A$6.74M5.6%
COM NEW$5.43M4.5%
COM CL A$4.54M3.8%
SHS$4.22M3.5%
CONV BD ETF$2.34M2.0%
STATE STREET SPD$2.10M1.8%
Portfolio Concentration
Top 3$9.79M8.2%
4–10$12.25M10.3%
11–25$16.90M14.1%
Rest$80.61M67.4%
Top 3 weight
8.2%
Top 10 weight
18.4%
Voting Authority Distribution
Total shares with voting rights: 1.73M
Sole
Full voting authority
1.73M
shares
% of voting shares100.0%
Shared
Joint voting authority
0.00
shares
% of voting shares0.0%
None
No voting authority
0.00
shares
% of voting shares0.0%
Investment Discretion (by position count)
Sole214
Shared0
Other0
Dominant voting typeSole · 100.0% of voting shares
Institutional Holdings214
Rows:
Comfort Systems USA, Inc.
SOLEShares3.21K
TypeSH
Market value$4.43M
3.70%
Sole
3.21K
Shared
0.00
None
0.00
IES Holdings, Inc.
SOLEShares6.34K
TypeSH
Market value$3.02M
2.53%
Sole
6.34K
Shared
0.00
None
0.00
iShares Convertible Bond ETF
SOLEShares23K
TypeSH
Market value$2.34M
1.96%
Sole
23K
Shared
0.00
None
0.00
SPDR Bloomberg Convertible Securities ETF
SOLEShares23K
TypeSH
Market value$2.10M
1.76%
Sole
23K
Shared
0.00
None
0.00
Fabrinet
SOLEShares3.80K
TypeSH
Market value$1.98M
1.66%
Sole
3.80K
Shared
0.00
None
0.00
Vanguard Emerging Markets Government Bond ETF
SOLEShares30K
TypeSH
Market value$1.97M
1.65%
Sole
30K
Shared
0.00
None
0.00
Nova Ltd.
SOLEShares3.78K
TypeSH
Market value$1.64M
1.37%
Sole
3.78K
Shared
0.00
None
0.00
Mueller Industries, Inc.
SOLEShares14.45K
TypeSH
Market value$1.60M
1.34%
Sole
14.45K
Shared
0.00
None
0.00
iShares iBoxx $ Investment Grade Corporate Bond
SOLEShares14K
TypeSH
Market value$1.53M
1.28%
Sole
14K
Shared
0.00
None
0.00
Palo Alto Networks, Inc.
SOLEShares8.91K
TypeSH
Market value$1.43M
1.20%
Sole
8.91K
Shared
0.00
None
0.00
FTAI Aviation Ltd.
SOLEShares5.80K
TypeSH
Market value$1.42M
1.19%
Sole
5.80K
Shared
0.00
None
0.00
KLA Corporation
SOLEShares890.00
TypeSH
Market value$1.31M
1.10%
Sole
890.00
Shared
0.00
None
0.00
Insmed, Inc.
SOLEShares7.92K
TypeSH
Market value$1.30M
1.08%
Sole
7.92K
Shared
0.00
None
0.00
StoneX Group, Inc.
SOLEShares15.75K
TypeSH
Market value$1.27M
1.06%
Sole
15.75K
Shared
0.00
None
0.00
WESCO International, Inc.
SOLEShares4.55K
TypeSH
Market value$1.24M
1.04%
Sole
4.55K
Shared
0.00
None
0.00
Arista Networks, Inc.
SOLEShares9.80K
TypeSH
Market value$1.20M
1.01%
Sole
9.80K
Shared
0.00
None
0.00
Axon Enterprise, Inc.
SOLEShares2.65K
TypeSH
Market value$1.13M
0.94%
Sole
2.65K
Shared
0.00
None
0.00
RBC Bearings, Inc.
SOLEShares1.97K
TypeSH
Market value$1.07M
0.90%
Sole
1.97K
Shared
0.00
None
0.00
Camtek Ltd.
SOLEShares7.05K
TypeSH
Market value$1.07M
0.89%
Sole
7.05K
Shared
0.00
None
0.00
Gold Fields Ltd.
SOLEShares22.75K
TypeSH
Market value$1.03M
0.86%
Sole
22.75K
Shared
0.00
None
0.00
Penumbra, Inc.
SOLEShares3K
TypeSH
Market value$985.1K
0.82%
Sole
3K
Shared
0.00
None
0.00
Woodward, Inc.
SOLEShares2.75K
TypeSH
Market value$984.3K
0.82%
Sole
2.75K
Shared
0.00
None
0.00
iShares Preferred and Income Securities ETF
SOLEShares32K
TypeSH
Market value$970.2K
0.81%
Sole
32K
Shared
0.00
None
0.00
BWX Technologies, Inc.
SOLEShares4.70K
TypeSH
Market value$961.1K
0.80%
Sole
4.70K
Shared
0.00
None
0.00
Curtiss-Wright Corporation
SOLEShares1.40K
TypeSH
Market value$953.6K
0.80%
Sole
1.40K
Shared
0.00
None
0.00
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
Comfort Systems USA, Inc.SOLE | COM | 3.21K | SH | $4.43M 3.70% | 3.21K | 0.00 | 0.00 |
IES Holdings, Inc.SOLE | COM | 6.34K | SH | $3.02M 2.53% | 6.34K | 0.00 | 0.00 |
iShares Convertible Bond ETFSOLE | CONV BD ETF | 23K | SH | $2.34M 1.96% | 23K | 0.00 | 0.00 |
SPDR Bloomberg Convertible Securities ETFSOLE | STATE STREET SPD | 23K | SH | $2.10M 1.76% | 23K | 0.00 | 0.00 |
FabrinetSOLE | SHS | 3.80K | SH | $1.98M 1.66% | 3.80K | 0.00 | 0.00 |
Vanguard Emerging Markets Government Bond ETFSOLE | EM MK GOV BD ETF | 30K | SH | $1.97M 1.65% | 30K | 0.00 | 0.00 |
Nova Ltd.SOLE | COM | 3.78K | SH | $1.64M 1.37% | 3.78K | 0.00 | 0.00 |
Mueller Industries, Inc.SOLE | COM | 14.45K | SH | $1.60M 1.34% | 14.45K | 0.00 | 0.00 |
iShares iBoxx $ Investment Grade Corporate BondSOLE | IBOXX INV CP ETF | 14K | SH | $1.53M 1.28% | 14K | 0.00 | 0.00 |
Palo Alto Networks, Inc.SOLE | COM | 8.91K | SH | $1.43M 1.20% | 8.91K | 0.00 | 0.00 |
FTAI Aviation Ltd.SOLE | SHS | 5.80K | SH | $1.42M 1.19% | 5.80K | 0.00 | 0.00 |
KLA CorporationSOLE | COM NEW | 890.00 | SH | $1.31M 1.10% | 890.00 | 0.00 | 0.00 |
Insmed, Inc.SOLE | COM PAR $.01 | 7.92K | SH | $1.30M 1.08% | 7.92K | 0.00 | 0.00 |
StoneX Group, Inc.SOLE | COM | 15.75K | SH | $1.27M 1.06% | 15.75K | 0.00 | 0.00 |
WESCO International, Inc.SOLE | COM | 4.55K | SH | $1.24M 1.04% | 4.55K | 0.00 | 0.00 |
Arista Networks, Inc.SOLE | COM SHS | 9.80K | SH | $1.20M 1.01% | 9.80K | 0.00 | 0.00 |
Axon Enterprise, Inc.SOLE | COM | 2.65K | SH | $1.13M 0.94% | 2.65K | 0.00 | 0.00 |
RBC Bearings, Inc.SOLE | COM | 1.97K | SH | $1.07M 0.90% | 1.97K | 0.00 | 0.00 |
Camtek Ltd.SOLE | ORD | 7.05K | SH | $1.07M 0.89% | 7.05K | 0.00 | 0.00 |
Gold Fields Ltd.SOLE | SPONSORED ADR | 22.75K | SH | $1.03M 0.86% | 22.75K | 0.00 | 0.00 |
Penumbra, Inc.SOLE | COM | 3K | SH | $985.1K 0.82% | 3K | 0.00 | 0.00 |
Woodward, Inc.SOLE | COM | 2.75K | SH | $984.3K 0.82% | 2.75K | 0.00 | 0.00 |
iShares Preferred and Income Securities ETFSOLE | PFD AND INCM SEC | 32K | SH | $970.2K 0.81% | 32K | 0.00 | 0.00 |
BWX Technologies, Inc.SOLE | COM | 4.70K | SH | $961.1K 0.80% | 4.70K | 0.00 | 0.00 |
Curtiss-Wright CorporationSOLE | COM | 1.40K | SH | $953.6K 0.80% | 1.40K | 0.00 | 0.00 |
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