OCONNOR WALTER has filed 88 insider transactions across 11 companies since October 2017.
Most recent transaction: a transaction of 530 shares of BLACKROCK MUNIYIELD QUALITY FUND, INC. ($MQY) on February 23, 2026.
Activity breakdown: 1 open-market purchase and 0 sales.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feb. 23, 2026 | BLACKROCK MUNIYIELD QUALITY FUND, INC. | $MQY | OCONNOR WALTER | Not found | J | Phantom Shares | 531 | $11.74 | 1,427.0600 | 0 | 59.23% | 0.00% |
| Feb. 23, 2026 | BLACKROCK MUNIYIELD FUND, INC. | $MYD | OCONNOR WALTER | Not found | J | Common Stock | 100 | $11.55 | 0.0000 | 0 | 100.00% | 0.00% |
| Feb. 23, 2026 | BLACKROCK MUNIYIELD QUALITY FUND, INC. | $MQY | OCONNOR WALTER | Not found | J | Phantom Shares | 530 | $11.74 | 896.2500 | 0 | 144.98% | 0.00% |
| Feb. 23, 2026 | BLACKROCK MUNIYIELD QUALITY FUND, INC. | $MQY | OCONNOR WALTER | Not found | J | Phantom Shares | 366 | $11.74 | 365.8400 | 0 | 9999.99% | 0.00% |
| Feb. 23, 2026 | BLACKROCK MUNIYIELD FUND, INC. | $MYD | OCONNOR WALTER | Not found | J | Phantom Shares | 579 | $10.77 | 0.0000 | 0 | 100.00% | 0.00% |
| Feb. 23, 2026 | BLACKROCK MUNIYIELD QUALITY FUND, INC. | $MQY | OCONNOR WALTER | Not found | J | Common Stock | 92 | $0.00 | 92.0000 | 0 | 9999.99% | 0.00% |
| Feb. 23, 2026 | BLACKROCK MUNIYIELD QUALITY FUND II, INC. | $MQT | OCONNOR WALTER | Not found | J | Phantom Shares | 605 | $10.30 | 0.0000 | 0 | 100.00% | 0.00% |
| Feb. 23, 2026 | BLACKROCK INVESTMENT QUALITY MUNICIPAL TRUST, INC. | $BKN | OCONNOR WALTER | Not found | J | Phantom Shares | 372 | $11.54 | 0.0000 | 0 | 100.00% | 0.00% |
| Feb. 9, 2026 | BLACKROCK MUNICIPAL INCOME TRUST II | $BLE | OCONNOR WALTER | Not found | J | Common Stock | 95 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Feb. 9, 2026 | BLACKROCK MUNIHOLDINGS FUND, INC. | $MHD | OCONNOR WALTER | Not found | J | Common Stock | 84 | $0.00 | 84.0000 | 0 | 9999.99% | 0.00% |
| Jan. 30, 2026 | BLACKROCK MUNIYIELD QUALITY FUND II, INC. | $MQT | OCONNOR WALTER | Not found | M | Common Stock | 391 | $0.00 | 391.4934 | 0 | 9999.99% | 0.00% |
| Jan. 30, 2026 | BLACKROCK MUNIYIELD QUALITY FUND II, INC. | $MQT | OCONNOR WALTER | Not found | D | Common Stock | 391 | $10.23 | 0.0000 | 0 | 100.00% | 0.00% |
| Jan. 30, 2026 | BLACKROCK MUNIYIELD QUALITY FUND II, INC. | $MQT | OCONNOR WALTER | Not found | M | Phantom Shares | 213 | $0.00 | 426.7357 | 0 | 33.33% | 0.00% |
| Jan. 30, 2026 | BLACKROCK MUNIYIELD QUALITY FUND II, INC. | $MQT | OCONNOR WALTER | Not found | M | Phantom Shares | 178 | $0.00 | 178.1255 | 0 | 50.00% | 0.00% |
| Jan. 30, 2026 | BlackRock Municipal 2030 Target Term Trust | $BTT | OCONNOR WALTER | Not found | M | Common Stock | 100 | $0.00 | 99.5319 | 0 | 9999.99% | 0.00% |
| Jan. 30, 2026 | BlackRock Municipal 2030 Target Term Trust | $BTT | OCONNOR WALTER | Not found | D | Common Stock | 100 | $22.79 | 0.0000 | 0 | 100.00% | 0.00% |
| Jan. 30, 2026 | BlackRock Municipal 2030 Target Term Trust | $BTT | OCONNOR WALTER | Not found | M | Phantom Shares | 100 | $0.00 | 199.0639 | 0 | 33.33% | 0.00% |
| Jan. 30, 2026 | BLACKROCK MUNIYIELD QUALITY FUND III, INC. | $MYI | OCONNOR WALTER | Not found | M | Common Stock | 354 | $0.00 | 454.3420 | 0 | 354.34% | 0.00% |
| Jan. 30, 2026 | BLACKROCK MUNIYIELD QUALITY FUND III, INC. | $MYI | OCONNOR WALTER | Not found | D | Common Stock | 354 | $11.16 | 100.0000 | 0 | 77.99% | 0.00% |
| Jan. 30, 2026 | BLACKROCK MUNIYIELD QUALITY FUND III, INC. | $MYI | OCONNOR WALTER | Not found | M | Phantom Shares | 194 | $0.00 | 387.7407 | 0 | 33.33% | 0.00% |
| Jan. 30, 2026 | BLACKROCK MUNIYIELD QUALITY FUND III, INC. | $MYI | OCONNOR WALTER | Not found | M | Phantom Shares | 160 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Jan. 30, 2026 | BLACKROCK MUNIYIELD FUND, INC. | $MYD | OCONNOR WALTER | Not found | M | Common Stock | 538 | $0.00 | 638.3007 | 0 | 538.30% | 0.00% |
| Jan. 30, 2026 | BLACKROCK MUNIYIELD FUND, INC. | $MYD | OCONNOR WALTER | Not found | D | Common Stock | 538 | $10.69 | 100.0000 | 0 | 84.33% | 0.00% |
| Jan. 30, 2026 | BLACKROCK MUNIYIELD FUND, INC. | $MYD | OCONNOR WALTER | Not found | M | Phantom Shares | 204 | $0.00 | 407.2218 | 0 | 33.33% | 0.00% |
| Jan. 30, 2026 | BLACKROCK MUNIYIELD FUND, INC. | $MYD | OCONNOR WALTER | Not found | M | Phantom Shares | 171 | $0.00 | 171.3944 | 0 | 50.00% | 0.00% |
| Jan. 30, 2026 | BLACKROCK MUNIASSETS FUND, INC. | $MUA | OCONNOR WALTER | Not found | M | Phantom Shares | 336 | $0.00 | 336.0247 | 0 | 50.00% | 0.00% |
| Jan. 30, 2026 | BLACKROCK INVESTMENT QUALITY MUNICIPAL TRUST, INC. | $BKN | OCONNOR WALTER | Not found | M | Common Stock | 186 | $0.00 | 186.0920 | 0 | 9999.99% | 0.00% |
| Jan. 30, 2026 | BLACKROCK MUNICIPAL INCOME TRUST | $BFK | OCONNOR WALTER | Not found | M | Common Stock | 172 | $0.00 | 171.5284 | 0 | 9999.99% | 0.00% |
| Jan. 30, 2026 | BLACKROCK MUNIASSETS FUND, INC. | $MUA | OCONNOR WALTER | Not found | M | Phantom Shares | 326 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Jan. 30, 2026 | BLACKROCK MUNICIPAL INCOME TRUST | $BFK | OCONNOR WALTER | Not found | M | Phantom Shares | 172 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Jan. 30, 2026 | BLACKROCK MUNICIPAL INCOME TRUST | $BFK | OCONNOR WALTER | Not found | D | Common Stock | 172 | $10.17 | 0.0000 | 0 | 100.00% | 0.00% |
| Jan. 30, 2026 | BLACKROCK MUNIYIELD FUND, INC. | $MYD | OCONNOR WALTER | Not found | M | Phantom Shares | 163 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Jan. 30, 2026 | BLACKROCK MUNIASSETS FUND, INC. | $MUA | OCONNOR WALTER | Not found | M | Phantom Shares | 389 | $0.00 | 778.3513 | 0 | 33.33% | 0.00% |
| Jan. 30, 2026 | BLACKROCK MUNIASSETS FUND, INC. | $MUA | OCONNOR WALTER | Not found | D | Common Stock | 1051 | $11.07 | 0.0000 | 0 | 100.00% | 0.00% |
| Jan. 30, 2026 | BLACKROCK MUNIASSETS FUND, INC. | $MUA | OCONNOR WALTER | Not found | M | Common Stock | 1051 | $0.00 | 1,051.0581 | 0 | 9999.99% | 0.00% |
| Jan. 30, 2026 | BLACKROCK INVESTMENT QUALITY MUNICIPAL TRUST, INC. | $BKN | OCONNOR WALTER | Not found | M | Phantom Shares | 186 | $0.00 | 372.1840 | 0 | 33.33% | 0.00% |
| Jan. 30, 2026 | BLACKROCK INVESTMENT QUALITY MUNICIPAL TRUST, INC. | $BKN | OCONNOR WALTER | Not found | D | Common Stock | 186 | $11.45 | 0.0000 | 0 | 100.00% | 0.00% |
| Jan. 30, 2026 | BlackRock Taxable Municipal Bond Trust | $BBN | OCONNOR WALTER | Not found | M | Common Stock | 244 | $0.00 | 243.5732 | 0 | 9999.99% | 0.00% |
| Jan. 30, 2026 | BlackRock Taxable Municipal Bond Trust | $BBN | OCONNOR WALTER | Not found | D | Common Stock | 244 | $16.30 | 0.0000 | 0 | 100.00% | 0.00% |
| Jan. 30, 2026 | BlackRock Taxable Municipal Bond Trust | $BBN | OCONNOR WALTER | Not found | M | Phantom Shares | 133 | $0.00 | 265.0239 | 0 | 33.33% | 0.00% |
| Jan. 30, 2026 | BlackRock Taxable Municipal Bond Trust | $BBN | OCONNOR WALTER | Not found | M | Phantom Shares | 111 | $0.00 | 111.0613 | 0 | 50.00% | 0.00% |
| Jan. 31, 2025 | BLACKROCK MUNIYIELD QUALITY FUND II, INC. | $MQT | OCONNOR WALTER | Not found | M | Common Stock | 167 | $0.00 | 167.4303 | 0 | 9999.99% | 0.00% |
| Jan. 31, 2025 | BLACKROCK MUNIASSETS FUND, INC. | $MUA | OCONNOR WALTER | Not found | D | Common Stock | 309 | $11.05 | 0.0000 | 0 | 100.00% | 0.00% |
| Jan. 31, 2025 | BLACKROCK MUNIASSETS FUND, INC. | $MUA | OCONNOR WALTER | Not found | A | Phantom Shares | 554 | $11.05 | 554.2986 | 0 | 9999.99% | 0.00% |
| Jan. 31, 2025 | BLACKROCK MUNIASSETS FUND, INC. | $MUA | OCONNOR WALTER | Not found | M | Phantom Shares | 158 | $0.00 | 315.6686 | 0 | 33.33% | 0.00% |
| Jan. 31, 2025 | BLACKROCK MUNIASSETS FUND, INC. | $MUA | OCONNOR WALTER | Not found | M | Phantom Shares | 151 | $0.00 | 151.3543 | 0 | 50.00% | 0.00% |
| Jan. 31, 2025 | BLACKROCK MUNIYIELD QUALITY FUND III, INC. | $MYI | OCONNOR WALTER | Not found | M | Common Stock | 151 | $0.00 | 250.8877 | 0 | 150.89% | 0.00% |
| Jan. 31, 2025 | BLACKROCK MUNIYIELD QUALITY FUND III, INC. | $MYI | OCONNOR WALTER | Not found | D | Common Stock | 151 | $11.20 | 100.0000 | 0 | 60.14% | 0.00% |
| Jan. 31, 2025 | BLACKROCK MUNIYIELD QUALITY FUND III, INC. | $MYI | OCONNOR WALTER | Not found | A | Phantom Shares | 547 | $11.20 | 546.8750 | 0 | 9999.99% | 0.00% |
| Jan. 31, 2025 | BLACKROCK MUNIYIELD QUALITY FUND III, INC. | $MYI | OCONNOR WALTER | Not found | M | Phantom Shares | 151 | $0.00 | 150.8877 | 0 | 50.00% | 0.00% |
| Jan. 31, 2025 | BLACKROCK INVESTMENT QUALITY MUNICIPAL TRUST, INC. | $BKN | OCONNOR WALTER | Not found | A | Phantom Shares | 533 | $11.49 | 533.0722 | 0 | 9999.99% | 0.00% |
| Jan. 31, 2025 | BLACKROCK MUNIYIELD FUND, INC. | $MYD | OCONNOR WALTER | Not found | M | Common Stock | 314 | $0.00 | 414.2354 | 0 | 314.24% | 0.00% |
| Jan. 31, 2025 | BLACKROCK MUNIYIELD FUND, INC. | $MYD | OCONNOR WALTER | Not found | D | Common Stock | 314 | $10.68 | 100.0000 | 0 | 75.86% | 0.00% |
| Jan. 31, 2025 | BLACKROCK MUNIYIELD FUND, INC. | $MYD | OCONNOR WALTER | Not found | A | Phantom Shares | 574 | $10.68 | 573.5019 | 0 | 9999.99% | 0.00% |
| Jan. 31, 2025 | BLACKROCK MUNIYIELD FUND, INC. | $MYD | OCONNOR WALTER | Not found | M | Phantom Shares | 161 | $0.00 | 321.8393 | 0 | 33.33% | 0.00% |
| Jan. 31, 2025 | BLACKROCK MUNIYIELD FUND, INC. | $MYD | OCONNOR WALTER | Not found | M | Phantom Shares | 153 | $0.00 | 153.3157 | 0 | 50.00% | 0.00% |
| Jan. 31, 2025 | BlackRock Municipal 2030 Target Term Trust | $BTT | OCONNOR WALTER | Not found | A | Phantom Shares | 291 | $21.04 | 291.1122 | 0 | 9999.99% | 0.00% |
| Jan. 31, 2025 | BlackRock Taxable Municipal Bond Trust | $BBN | OCONNOR WALTER | Not found | M | Common Stock | 104 | $0.00 | 103.5189 | 0 | 9999.99% | 0.00% |
| Jan. 31, 2025 | BlackRock Taxable Municipal Bond Trust | $BBN | OCONNOR WALTER | Not found | D | Common Stock | 104 | $16.53 | 0.0000 | 0 | 100.00% | 0.00% |
| Jan. 31, 2025 | BlackRock Taxable Municipal Bond Trust | $BBN | OCONNOR WALTER | Not found | A | Phantom Shares | 371 | $16.53 | 370.5384 | 0 | 9999.99% | 0.00% |
| Jan. 31, 2025 | BlackRock Taxable Municipal Bond Trust | $BBN | OCONNOR WALTER | Not found | M | Phantom Shares | 104 | $0.00 | 207.0378 | 0 | 33.33% | 0.00% |
| Jan. 31, 2025 | BLACKROCK MUNIASSETS FUND, INC. | $MUA | OCONNOR WALTER | Not found | M | Common Stock | 309 | $0.00 | 309.1886 | 0 | 9999.99% | 0.00% |
| Jan. 31, 2025 | BLACKROCK MUNIYIELD QUALITY FUND II, INC. | $MQT | OCONNOR WALTER | Not found | D | Common Stock | 167 | $10.18 | 0.0000 | 0 | 100.00% | 0.00% |
| Jan. 31, 2025 | BLACKROCK MUNIYIELD QUALITY FUND II, INC. | $MQT | OCONNOR WALTER | Not found | A | Phantom Shares | 602 | $10.18 | 601.6699 | 0 | 9999.99% | 0.00% |
| Jan. 31, 2025 | BLACKROCK MUNIYIELD QUALITY FUND II, INC. | $MQT | OCONNOR WALTER | Not found | M | Phantom Shares | 167 | $0.00 | 334.8607 | 0 | 33.33% | 0.00% |
| Jan. 31, 2025 | BLACKROCK MUNICIPAL INCOME TRUST | $BFK | OCONNOR WALTER | Not found | M | Common Stock | 161 | $0.00 | 161.4241 | 0 | 9999.99% | 0.00% |
| Jan. 31, 2025 | BLACKROCK MUNICIPAL INCOME TRUST | $BFK | OCONNOR WALTER | Not found | D | Common Stock | 161 | $10.25 | 0.0000 | 0 | 100.00% | 0.00% |
| Jan. 31, 2025 | BLACKROCK MUNICIPAL INCOME TRUST | $BFK | OCONNOR WALTER | Not found | M | Phantom Shares | 161 | $0.00 | 161.4241 | 0 | 50.00% | 0.00% |
| Oct. 5, 2017 | BLACKROCK MUNICIPAL INCOME TRUST II | $BLE | OCONNOR WALTER | Not found | P | Common Stock | 95 | $15.49 | 95.0000 | 0 | 9999.99% | 0.00% |
| Jan. 31, 2024 | BLACKROCK MUNIASSETS FUND, INC. | $MUA | OCONNOR WALTER | Not found | M | Common Stock | 143 | $0.00 | 142.8309 | 0 | 9999.99% | 0.00% |
| Jan. 31, 2024 | BLACKROCK MUNIASSETS FUND, INC. | $MUA | OCONNOR WALTER | Not found | M | Phantom Shares | 143 | $0.00 | 285.6618 | 0 | 33.33% | 0.00% |
| Jan. 31, 2024 | BLACKROCK MUNIASSETS FUND, INC. | $MUA | OCONNOR WALTER | Not found | A | Phantom Shares | 447 | $10.91 | 446.8378 | 0 | 9999.99% | 0.00% |
| Jan. 31, 2024 | BLACKROCK MUNIASSETS FUND, INC. | $MUA | OCONNOR WALTER | Not found | D | Common Stock | 143 | $10.91 | 0.0000 | 0 | 100.00% | 0.00% |
| Jan. 31, 2024 | BLACKROCK MUNICIPAL INCOME TRUST | $BFK | OCONNOR WALTER | Not found | M | Phantom Shares | 152 | $0.00 | 304.4961 | 0 | 33.33% | 0.00% |
| Jan. 31, 2024 | BLACKROCK MUNICIPAL INCOME TRUST | $BFK | OCONNOR WALTER | Not found | D | Common Stock | 152 | $10.11 | 0.0000 | 0 | 100.00% | 0.00% |
| Jan. 31, 2024 | BLACKROCK MUNICIPAL INCOME TRUST | $BFK | OCONNOR WALTER | Not found | M | Common Stock | 152 | $0.00 | 152.2481 | 0 | 9999.99% | 0.00% |
| Jan. 31, 2024 | BLACKROCK MUNIYIELD QUALITY FUND II, INC. | $MQT | OCONNOR WALTER | Not found | A | Phantom Shares | 474 | $10.28 | 474.2218 | 0 | 9999.99% | 0.00% |
| Jan. 31, 2024 | BlackRock Taxable Municipal Bond Trust | $BBN | OCONNOR WALTER | Not found | A | Phantom Shares | 290 | $16.79 | 290.3514 | 0 | 9999.99% | 0.00% |
| Jan. 31, 2024 | BLACKROCK MUNIYIELD FUND, INC. | $MYD | OCONNOR WALTER | Not found | M | Phantom Shares | 145 | $0.00 | 289.3857 | 0 | 33.33% | 0.00% |
| Jan. 31, 2024 | BLACKROCK MUNIYIELD FUND, INC. | $MYD | OCONNOR WALTER | Not found | A | Phantom Shares | 456 | $10.70 | 455.6075 | 0 | 9999.99% | 0.00% |
| Jan. 31, 2024 | BLACKROCK MUNIYIELD FUND, INC. | $MYD | OCONNOR WALTER | Not found | D | Common Stock | 145 | $10.70 | 100.0000 | 0 | 59.13% | 0.00% |
| Jan. 31, 2024 | BLACKROCK MUNIYIELD FUND, INC. | $MYD | OCONNOR WALTER | Not found | M | Common Stock | 145 | $0.00 | 244.6929 | 0 | 144.69% | 0.00% |
| Jan. 31, 2024 | BLACKROCK MUNIYIELD QUALITY FUND III, INC. | $MYI | OCONNOR WALTER | Not found | M | Phantom Shares | 142 | $0.00 | 284.5924 | 0 | 33.33% | 0.00% |
| Jan. 31, 2024 | BLACKROCK MUNIYIELD QUALITY FUND III, INC. | $MYI | OCONNOR WALTER | Not found | D | Common Stock | 142 | $11.28 | 100.0000 | 0 | 58.73% | 0.00% |
| Jan. 31, 2024 | BLACKROCK MUNIYIELD QUALITY FUND III, INC. | $MYI | OCONNOR WALTER | Not found | M | Common Stock | 142 | $0.00 | 242.2962 | 0 | 142.30% | 0.00% |
| Jan. 31, 2023 | BLACKROCK MUNICIPAL INCOME TRUST | $BFK | OCONNOR WALTER | Other | A | Phantom Shares | 442 | $10.60 | 442.3349 | 0 | 9999.99% | 0.00% |
| Jan. 31, 2023 | BLACKROCK MUNIYIELD FUND, INC. | $MYD | OCONNOR WALTER | Other | A | Phantom Shares | 419 | $11.19 | 419.0125 | 0 | 9999.99% | 0.00% |
| Jan. 31, 2023 | BLACKROCK MUNIASSETS FUND, INC. | $MUA | OCONNOR WALTER | Other | A | Phantom Shares | 412 | $11.38 | 412.0167 | 0 | 9999.99% | 0.00% |