WaveMan · Form 4
Gabelli Mario J insider trades
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Gabelli Mario J insider trades

Gabelli Mario J has filed 229 Form 4s with the SEC that we hold, for M-tron Industries, Inc. (MPTI) (10% owner), Gabelli Healthcare & WellnessRx Trust (GRX) (Director), Gabelli Multimedia Trust INC. (GGT) (Director) and Gabelli Convertible & Income Securities Fund INC (GCV) (Reporting owner), among 20 companies in all. Across all of them we count 132 purchases worth $284.8M and 109 sales worth $14.8M reported on Form 4. In the last 12 months: 23 purchases ($103.6M) and 11 sales ($241.5K). The largest single trade was a purchase of 3,131,500 shares of Gabelli Dividend & Income Trust worth $31.3M, dated 2024-10-11. The first filing on our record is dated 2021-07-22 and the latest 2026-07-20.

M-tron Industries, Inc. (MPTI)

10% owner · 34 filings · 12 purchases and sales
Trade dateCodeSharesValue as filedFiled
2022-12-28S, sale reported on Form 49,000$81.1K2022-12-30
2023-04-14S, sale reported on Form 4500$5.8K2023-04-17
2023-08-23S, sale reported on Form 4468$7.8K2023-08-24
2023-09-13P, purchase reported on Form 4200$3.8K2023-09-13
2024-04-09S, sale reported on Form 4500$13.3K2024-04-10
2024-06-13S, sale reported on Form 4500$17.9K2024-06-25
2024-06-24S, sale reported on Form 4700$22.3K2024-06-25
2024-06-25S, sale reported on Form 4200$6.7K2024-06-25
2024-09-09S, sale reported on Form 4800$26.8K2024-09-10
2024-09-30S, sale reported on Form 4171$7.1K2024-10-01
2024-11-13S, sale reported on Form 41,500$78.9K2024-11-14
2024-11-14S, sale reported on Form 47,500$450.8K2024-11-15

Gabelli Healthcare & WellnessRx Trust (GRX)

Director · 28 filings · 42 purchases and sales
Trade dateCodeSharesValue as filedFiled
2021-10-15P, purchase reported on Form 4130,000$1.3M2021-10-19
2021-10-15P, purchase reported on Form 4200,000$2.0M2021-10-19
2021-10-15P, purchase reported on Form 4470,000$4.7M2021-10-19
2021-10-15P, purchase reported on Form 4230,000$2.3M2021-10-19
2021-10-15P, purchase reported on Form 4370,000$3.7M2021-10-19
2022-10-17S, sale reported on Form 450,000$1.0M2022-10-20
2022-10-17P, purchase reported on Form 450,000$1.0M2022-10-20
2022-10-17P, purchase reported on Form 4230,000$2.3M2022-10-19
2022-10-17S, sale reported on Form 4230,000$2.3M2022-10-19
2023-01-18P, purchase reported on Form 4100,000$1.0M2023-01-20
2023-01-18P, purchase reported on Form 450,000$500.0K2023-01-20
2023-01-18P, purchase reported on Form 4200,000$2.0M2023-01-20
2023-01-18P, purchase reported on Form 461,000$610.0K2023-01-20
2023-12-11P, purchase reported on Form 46,000$54.2K2023-12-13
2024-02-29P, purchase reported on Form 410,000$100.0K2024-03-01
2024-02-29P, purchase reported on Form 4400,000$4.0M2024-03-01
2024-02-29P, purchase reported on Form 4200,000$2.0M2024-03-01
2024-08-19P, purchase reported on Form 45,000$53.8K2024-08-21
2024-11-21P, purchase reported on Form 44,000$40.6K2024-11-22
2024-11-25P, purchase reported on Form 43,000$30.5K2024-11-26
2024-11-27P, purchase reported on Form 4112$1.2K2024-12-02
2024-12-03P, purchase reported on Form 47,863$82.6K2024-12-04
2024-12-04P, purchase reported on Form 42,000$21.0K2024-12-05
2024-12-04P, purchase reported on Form 4137$1.4K2024-12-05
2024-12-04P, purchase reported on Form 41,000$10.6K2024-12-05
2024-12-12P, purchase reported on Form 43,456$35.6K2024-12-16
2024-12-13P, purchase reported on Form 4544$5.5K2024-12-16
2024-12-30P, purchase reported on Form 44,000$39.2K2025-01-02
2024-12-31P, purchase reported on Form 42,000$19.4K2025-01-02
2025-01-16P, purchase reported on Form 44,000$39.2K2025-01-21
2025-01-22P, purchase reported on Form 41,000$9.9K2025-01-24
2025-02-20P, purchase reported on Form 41,000$10.2K2025-02-24
2025-10-30P, purchase reported on Form 41,800,000$18.3M2025-11-05
2025-12-03P, purchase reported on Form 42,500$24.2K2025-12-04
2025-12-26P, purchase reported on Form 41,000,000$10.0M2026-01-02
2025-12-26P, purchase reported on Form 4200,000$2.0M2026-01-02
2025-12-26P, purchase reported on Form 4500,000$5.0M2026-01-02
2025-12-26P, purchase reported on Form 4100,000$1.0M2026-01-02
2025-12-26P, purchase reported on Form 4100,000$1.0M2025-12-30
2026-01-08P, purchase reported on Form 4990$9.5K2026-01-12
2026-01-12P, purchase reported on Form 43,800$36.4K2026-01-14
2026-01-12P, purchase reported on Form 41,010$9.7K2026-01-14

Gabelli Multimedia Trust INC. (GGT)

Director · 23 filings · 29 purchases and sales
Trade dateCodeSharesValue as filedFiled
2021-08-27S, sale reported on Form 4400$3.8K2021-08-31
2021-08-30S, sale reported on Form 43,900$36.8K2021-09-01
2021-08-30P, purchase reported on Form 43,900$36.8K2021-09-01
2021-11-01S, sale reported on Form 4437$4.0K2021-11-03
2021-11-03S, sale reported on Form 42,000$18.5K2021-11-03
2022-12-01S, sale reported on Form 4748$4.8K2022-12-05
2022-12-06S, sale reported on Form 44,000$25.7K2022-12-08
2023-06-20S, sale reported on Form 46,604$41.4K2023-06-22
2023-09-25P, purchase reported on Form 4167$1.1K2023-09-27
2023-11-07S, sale reported on Form 44,377$20.9K2023-11-08
2023-12-11S, sale reported on Form 44,508$26.1K2023-12-13
2024-07-17S, sale reported on Form 417,000$1702024-07-19
2024-07-17S, sale reported on Form 47,476$752024-07-19
2024-07-17S, sale reported on Form 4435,000$4.3K2024-07-19
2024-07-17S, sale reported on Form 433,500$3352024-07-19
2024-07-29P, purchase reported on Form 4500$2.5K2024-07-31
2024-10-15P, purchase reported on Form 4527$2.5K2024-10-17
2024-11-04P, purchase reported on Form 4501$2.3K2024-11-05
2025-05-13P, purchase reported on Form 440,000$173.6K2025-05-19
2025-09-02P, purchase reported on Form 4152$6442025-09-04
2025-10-27P, purchase reported on Form 431,000$125.2K2025-10-28
2025-12-05S, sale reported on Form 42,000$8.3K2025-12-09
2025-12-08S, sale reported on Form 49,000$37.5K2025-12-09
2025-12-09S, sale reported on Form 49,000$37.6K2025-12-12
2025-12-09S, sale reported on Form 42,000$8.4K2025-12-11
2025-12-10S, sale reported on Form 49,000$37.6K2025-12-12
2025-12-10S, sale reported on Form 42,000$8.4K2025-12-11
2025-12-11S, sale reported on Form 49,000$37.8K2025-12-15
2026-02-24P, purchase reported on Form 425,000$101.5K2026-02-25

Gabelli Convertible & Income Securities Fund INC (GCV)

Reporting owner · 20 filings · 21 purchases and sales
Trade dateCodeSharesValue as filedFiled
2021-11-01S, sale reported on Form 4343$2.2K2021-11-03
2021-11-12S, sale reported on Form 48,000$53.4K2021-11-16
2021-11-15S, sale reported on Form 49,000$59.2K2021-11-16
2022-01-10S, sale reported on Form 45,000$32.6K2022-01-12
2022-06-13S, sale reported on Form 47,501$42.9K2022-06-15
2022-12-01S, sale reported on Form 45,000$25.2K2022-12-05
2022-12-05S, sale reported on Form 45,000$26.8K2022-12-07
2022-12-29P, purchase reported on Form 4200,000$2.0M2023-01-05
2022-12-29P, purchase reported on Form 4150,000$1.5M2023-01-05
2023-07-28S, sale reported on Form 410,000$42.6K2023-08-01
2023-11-22S, sale reported on Form 45,000$17.1K2023-11-27
2023-12-07S, sale reported on Form 44,000$13.9K2023-12-11
2024-04-11S, sale reported on Form 4576$2.1K2024-04-15
2024-07-29S, sale reported on Form 41,424$5.3K2024-07-30
2024-08-29S, sale reported on Form 41,669$6.4K2024-08-30
2024-09-05S, sale reported on Form 48,000$32.0K2024-09-06
2024-10-15S, sale reported on Form 43,000$11.2K2024-10-16
2025-02-10S, sale reported on Form 4999$3.9K2025-02-12
2025-07-01S, sale reported on Form 45,000$19.1K2025-07-02
2025-07-11S, sale reported on Form 43,100$12.0K2025-07-15
2025-11-10P, purchase reported on Form 450,000$214.5K2025-11-19

Gdl Fund (GDL)

Director, 10% owner · 19 filings · 21 purchases and sales
Trade dateCodeSharesValue as filedFiled
2021-09-30S, sale reported on Form 47,407$66.4K2021-10-04
2021-10-22S, sale reported on Form 43,591$32.3K2021-10-26
2022-03-28P, purchase reported on Form 4300,000$3.0M2022-03-30
2022-03-28P, purchase reported on Form 4200,000$2.0M2022-03-30
2022-03-28P, purchase reported on Form 4240,000$2.4M2022-03-30
2022-07-18P, purchase reported on Form 4900$7.4K2022-07-20
2022-10-03P, purchase reported on Form 4170$1.4K2022-10-05
2022-10-04P, purchase reported on Form 42,736$21.9K2022-10-05
2022-10-07P, purchase reported on Form 41,200$9.5K2022-10-11
2022-10-17P, purchase reported on Form 4200,000$2.0M2022-10-19
2022-10-17S, sale reported on Form 4200,000$2.0M2022-10-19
2022-10-24P, purchase reported on Form 4221$1.8K2022-10-26
2023-02-10P, purchase reported on Form 42,000$16.2K2023-02-16
2023-04-17S, sale reported on Form 42,000$15.7K2023-04-18
2023-07-31P, purchase reported on Form 4500$4.0K2023-08-01
2023-08-07P, purchase reported on Form 4120$9522023-08-08
2023-12-11S, sale reported on Form 42,000$16.0K2023-12-13
2024-08-29S, sale reported on Form 4307$2.5K2024-09-03
2024-11-26S, sale reported on Form 42,500$20.1K2024-11-27
2026-01-09S, sale reported on Form 4800$6.7K2026-01-13
2026-02-23S, sale reported on Form 4800$6.8K2026-02-24

Bancroft Fund LTD (BCV)

Director · 18 filings · 18 purchases and sales
Trade dateCodeSharesValue as filedFiled
2021-08-06S, sale reported on Form 42,000$62.1K2021-08-10
2022-06-15P, purchase reported on Form 41,000$17.9K2022-06-17
2022-10-19S, sale reported on Form 43,000$50.1K2022-10-21
2023-04-14S, sale reported on Form 412,000$199.0K2023-04-17
2023-05-01S, sale reported on Form 42,000$32.7K2023-05-03
2023-06-08S, sale reported on Form 43,000$50.9K2023-06-12
2023-10-26S, sale reported on Form 44,000$56.9K2023-10-27
2023-12-07S, sale reported on Form 41,000$15.2K2023-12-08
2023-12-28S, sale reported on Form 41,732$28.2K2024-01-02
2024-02-02S, sale reported on Form 42,000$30.8K2024-02-06
2024-03-28S, sale reported on Form 42,000$31.8K2024-04-01
2024-03-28S, sale reported on Form 44,000$63.6K2024-07-31
2024-04-11S, sale reported on Form 42,000$30.9K2024-04-12
2024-07-29S, sale reported on Form 41,500$24.5K2024-07-31
2024-08-29S, sale reported on Form 44,000$65.5K2024-08-29
2024-12-23S, sale reported on Form 41,500$26.6K2024-12-26
2025-10-20S, sale reported on Form 41,000$23.4K2025-10-21
2026-01-05S, sale reported on Form 41,300$28.9K2026-01-07

Gabelli Dividend & Income Trust (GDV)

Director · 17 filings · 24 purchases and sales
Trade dateCodeSharesValue as filedFiled
2022-06-14S, sale reported on Form 45,218$105.7K2022-06-16
2022-08-19S, sale reported on Form 42,063$46.7K2022-08-23
2022-11-07S, sale reported on Form 41,500$30.6K2022-11-09
2023-06-08S, sale reported on Form 44,000$83.7K2023-06-21
2024-08-02P, purchase reported on Form 43,280$75.1K2024-08-05
2024-08-05P, purchase reported on Form 4720$15.8K2024-08-07
2024-09-04P, purchase reported on Form 48,000$190.4K2024-09-05
2024-10-11P, purchase reported on Form 43,131,500$31.3M2024-10-18
2024-10-11P, purchase reported on Form 480,000$800.0K2024-10-18
2024-10-11P, purchase reported on Form 41,500,000$15.0M2024-10-18
2024-10-11P, purchase reported on Form 4600,000$6.0M2024-10-18
2024-10-11P, purchase reported on Form 43,100,000$31.0M2024-10-18
2024-10-11P, purchase reported on Form 4310,000$3.1M2024-10-15
2024-10-15P, purchase reported on Form 42,000$49.8K2024-10-16
2024-10-16P, purchase reported on Form 4200$5.0K2024-10-18
2025-01-17P, purchase reported on Form 42,000$49.7K2025-01-22
2025-01-17P, purchase reported on Form 4300$7.4K2025-01-22
2025-11-18P, purchase reported on Form 45,000$132.4K2025-11-20
2025-12-26P, purchase reported on Form 43,000,000$30.0M2025-12-31
2025-12-26P, purchase reported on Form 4400,000$4.0M2025-12-31
2025-12-26P, purchase reported on Form 4200,000$2.0M2025-12-31
2025-12-26P, purchase reported on Form 42,218,500$22.2M2025-12-31
2026-01-27P, purchase reported on Form 45,500$158.0K2026-01-28
2026-02-17P, purchase reported on Form 44,500$130.9K2026-02-18

GBL

Chairman & CEO, Director, 10% owner · 10 filings · 15 purchases and sales
Trade dateCodeSharesValue as filedFiled
2021-08-04S, sale reported on Form 42,042$56.2K2021-08-05
2021-08-30S, sale reported on Form 4910$25.3K2021-08-31
2021-09-10S, sale reported on Form 4500$13.5K2021-09-13
2021-09-14S, sale reported on Form 4500$13.5K2021-09-15
2021-09-15S, sale reported on Form 4700$19.4K2021-09-15
2021-11-01S, sale reported on Form 41,472$39.2K2021-11-02
2021-11-02S, sale reported on Form 4500$13.3K2021-11-02
2021-11-08S, sale reported on Form 45,481$147.3K2021-11-09
2021-11-10S, sale reported on Form 46,760$184.8K2021-11-12
2021-11-11S, sale reported on Form 43,622$99.6K2021-11-12
2021-11-12S, sale reported on Form 45,936$163.2K2021-11-12
2021-11-19S, sale reported on Form 47,244$208.3K2021-11-22
2021-11-22S, sale reported on Form 48,546$247.3K2021-11-22
2022-10-21S, sale reported on Form 41,500$22.5K2022-10-24
2022-11-10S, sale reported on Form 43,482$59.2K2022-11-14

Gabelli Global Utility & Income Trust (GLU.B)

Reporting owner · 10 filings · 9 purchases and sales
Trade dateCodeSharesValue as filedFiled
2022-07-25S, sale reported on Form 42,000$100.2K2022-07-26
2023-05-30S, sale reported on Form 41,900$25.1K2023-06-01
2023-09-11S, sale reported on Form 42,500$125.8K2023-09-13
2023-09-12S, sale reported on Form 43,202$161.1K2023-09-13
2023-09-15P, purchase reported on Form 459,886$3.0M2023-09-15
2023-09-15S, sale reported on Form 459,886$3.0M2023-09-15
2023-11-20S, sale reported on Form 42,298$115.7K2023-11-22
2024-11-29S, sale reported on Form 44,275$215.5K2024-12-02
2024-12-02S, sale reported on Form 41,725$86.9K2024-12-03

Gabelli Equity Trust INC (GAB)

Director · 9 filings · 8 purchases and sales
Trade dateCodeSharesValue as filedFiled
2021-12-17P, purchase reported on Form 440,000$4.0M2021-12-21
2021-12-17P, purchase reported on Form 420,000$2.0M2021-12-21
2024-02-29P, purchase reported on Form 450,000$5.0M2024-03-01
2024-02-29P, purchase reported on Form 410,000$1.0M2024-03-01
2024-06-26P, purchase reported on Form 411,750$1.2M2024-06-28
2024-11-25S, sale reported on Form 45,000$28.7K2024-11-26
2025-12-26P, purchase reported on Form 4167,500$1.7M2025-12-30
2025-12-26P, purchase reported on Form 4500,000$5.0M2025-12-30

Liberty Media Corp (BATRA)

10% owner · 9 filings · 11 purchases and sales
Trade dateCodeSharesValue as filedFiled
2022-01-20P, purchase reported on Form 41,000$26.1K2022-01-21
2022-04-06P, purchase reported on Form 4500$14.3K2022-04-07
2022-04-12P, purchase reported on Form 45,000$135.6K2022-04-21
2022-04-20P, purchase reported on Form 45,000$140.1K2022-04-21
2022-04-25P, purchase reported on Form 45,000$135.9K2022-04-26
2022-04-25P, purchase reported on Form 41,000$27.1K2022-04-26
2022-05-05P, purchase reported on Form 41,000$26.1K2022-05-06
2022-08-24P, purchase reported on Form 42,000$57.6K2022-08-25
2022-08-31P, purchase reported on Form 4182$5.1K2022-09-01
2022-12-23P, purchase reported on Form 4800$26.1K2022-12-27
2023-07-07P, purchase reported on Form 4500$20.0K2023-07-10

Gabelli Global Small & Mid Cap Value Trust (GGZ.E)

Director, 10% owner · 7 filings · 12 purchases and sales
Trade dateCodeSharesValue as filedFiled
2021-11-01P, purchase reported on Form 4100,000$1.0M2021-11-02
2021-11-01P, purchase reported on Form 4200,000$2.0M2021-11-02
2021-11-01P, purchase reported on Form 4350,000$3.5M2021-11-02
2021-11-01P, purchase reported on Form 4163,500$1.6M2021-11-02
2021-11-01P, purchase reported on Form 4250,000$2.5M2021-11-02
2022-10-17P, purchase reported on Form 4158,554$1.6M2022-10-18
2022-10-17S, sale reported on Form 4158,554$1.6M2022-10-18
2025-01-10P, purchase reported on Form 47,700$89.9K2025-01-14
2025-01-13P, purchase reported on Form 46,300$73.5K2025-01-14
2025-09-26P, purchase reported on Form 4100,000$1.0M2025-09-30
2025-09-26P, purchase reported on Form 4200,000$2.0M2025-09-30
2025-09-26P, purchase reported on Form 4750,000$7.5M2025-09-30

Atlanta Braves Holdings, Inc. (BATRA)

10% owner · 6 filings · 7 purchases and sales
Trade dateCodeSharesValue as filedFiled
2023-10-23P, purchase reported on Form 41,000$37.8K2023-10-24
2024-08-30P, purchase reported on Form 41,000$45.6K2024-09-03
2024-10-11P, purchase reported on Form 4352$14.6K2024-10-15
2025-05-23P, purchase reported on Form 4451$19.6K2025-05-29
2025-05-28P, purchase reported on Form 41,549$67.3K2025-05-29
2025-06-20S, sale reported on Form 4100$4.8K2025-06-23
2025-09-29S, sale reported on Form 4500$22.7K2025-09-30

Ellsworth Growth & Income Fund LTD (ECF.B)

Director · 4 filings · 4 purchases and sales
Trade dateCodeSharesValue as filedFiled
2022-07-01P, purchase reported on Form 4100,000$1.0M2022-07-07
2022-07-01P, purchase reported on Form 4200,000$2.0M2022-07-07
2022-07-01P, purchase reported on Form 4150,000$1.5M2022-07-07
2022-07-01P, purchase reported on Form 4190,000$1.9M2022-07-07

Lgl Group INC (LGL)

10% owner · 4 filings · 1 purchase or sale
Trade dateCodeSharesValue as filedFiled
2025-12-30P, purchase reported on Form 495,387$453.1K2025-12-31

GAMCO Natural Resources, Gold & Income Trust (GNT.B)

10% owner · 3 filings · 4 purchases and sales
Trade dateCodeSharesValue as filedFiled
2024-02-22P, purchase reported on Form 4250,000$2.5M2024-04-03
2024-02-22P, purchase reported on Form 4190,000$1.9M2024-04-03
2024-02-22P, purchase reported on Form 430,000$300.0K2024-04-03
2024-02-22P, purchase reported on Form 4150,000$1.5M2024-04-03

MachTen, Inc. (MACT)

10% owner · 3 filings · 2 purchases and sales
Trade dateCodeSharesValue as filedFiled
2023-10-09P, purchase reported on Form 4183$1.1K2023-10-10
2023-10-10P, purchase reported on Form 4467$2.7K2023-10-10

GGO

Director · 2 filings · 0 purchases and sales

No purchase or sale of common stock reported here; these filings cover grants, option exercises or other codes.

Gabelli Utility Trust (GUT)

Director · 2 filings · 0 purchases and sales

No purchase or sale of common stock reported here; these filings cover grants, option exercises or other codes.

Strattec Security Corp (STRT)

10% owner · 1 filing · 1 purchase or sale
Trade dateCodeSharesValue as filedFiled
2024-01-22S, sale reported on Form 4200$4.6K2024-01-23
Source

Counted from the Form 4 filings this reporting owner (SEC CIK 1185533) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.

Source: U.S. Securities and Exchange Commission (EDGAR) and other official government data · Updated 2026-10-12 · For informational purposes only, not investment advice.
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