PBSV · Pharma-Bio Serv, Inc.
4 customers — 19.8% of revenue (three months ended April 30, 2026)
“During the three months ended April 30, 2026, revenues from these customers were 19.8%, 16.5%, 12.4% and 5.9%, or a total of 54.6%”
4 customers — 19.8% of revenue (three months ended April 30, 2026)
“During the three months ended April 30, 2026, aggregate revenues from these global groups of affiliated companies were 19.8%, 16.5%, 14.2% and 5.9%, or a total of 56.4%”
4 customers — 18.5% of revenue (six months ended April 30, 2026)
“During the six months ended April 30, 2026, revenues from these customers were 18.5%, 16.1%, 12.9% and 7.4%, or a total of 54.9%”
4 customers — 18.5% of revenue (six months ended April 30, 2026)
“During the six months ended April 30, 2026, aggregate revenues from these global group of affiliated companies were 18.5%, 16.1%, 14.6% and 7.4%”
4 customers — 16.5% of revenue (three months ended April 30, 2026)
“During the three months ended April 30, 2026, aggregate revenues from these global groups of affiliated companies were 19.8%, 16.5%, 14.2% and 5.9%, or a total of 56.4%”
4 customers — 16.5% of revenue (three months ended April 30, 2026)
“During the three months ended April 30, 2026, revenues from these customers were 19.8%, 16.5%, 12.4% and 5.9%, or a total of 54.6%”
4 customers — 16.1% of revenue (six months ended April 30, 2026)
“During the six months ended April 30, 2026, aggregate revenues from these global group of affiliated companies were 18.5%, 16.1%, 14.6% and 7.4%”
4 customers — 16.1% of revenue (six months ended April 30, 2026)
“During the six months ended April 30, 2026, revenues from these customers were 18.5%, 16.1%, 12.9% and 7.4%, or a total of 54.9%”
4 customers — 14.6% of revenue (six months ended April 30, 2026)
“During the six months ended April 30, 2026, aggregate revenues from these global group of affiliated companies were 18.5%, 16.1%, 14.6% and 7.4%”
4 customers — 14.2% of revenue (three months ended April 30, 2026)
“During the three months ended April 30, 2026, aggregate revenues from these global groups of affiliated companies were 19.8%, 16.5%, 14.2% and 5.9%, or a total of 56.4%”
4 customers — 12.9% of revenue (six months ended April 30, 2026)
“During the six months ended April 30, 2026, revenues from these customers were 18.5%, 16.1%, 12.9% and 7.4%, or a total of 54.9%”
4 customers — 12.4% of revenue (three months ended April 30, 2026)
“During the three months ended April 30, 2026, revenues from these customers were 19.8%, 16.5%, 12.4% and 5.9%, or a total of 54.6%”
4 customers — 7.4% of revenue (six months ended April 30, 2026)
“During the six months ended April 30, 2026, aggregate revenues from these global group of affiliated companies were 18.5%, 16.1%, 14.6% and 7.4%”
4 customers — 7.4% of revenue (six months ended April 30, 2026)
“During the six months ended April 30, 2026, revenues from these customers were 18.5%, 16.1%, 12.9% and 7.4%, or a total of 54.9%”
4 customers — 5.9% of revenue (three months ended April 30, 2026)
“During the three months ended April 30, 2026, aggregate revenues from these global groups of affiliated companies were 19.8%, 16.5%, 14.2% and 5.9%, or a total of 56.4%”
4 customers — 5.9% of revenue (three months ended April 30, 2026)
“During the three months ended April 30, 2026, revenues from these customers were 19.8%, 16.5%, 12.4% and 5.9%, or a total of 54.6%”
4 customers — 47.1% of receivables (April 30, 2026)
“On April 30, 2026, amounts due from these customers represented 47.1% of the Company’s total accounts receivable balance.”
Trades by corporate insiders — officers, directors and holders of more than 10% of the shares — disclosed to the SEC on Forms 4 and 5. Form 3 supplies initial ownership rather than a trade; Form 4 must be filed within two business days of the trade.
| Date | Insider | Role | Type | Security | Shares |
|---|---|---|---|---|---|
| 2026-06-09 | SPINDEL HOWARD |
Director |
Other↓
Filing footnotes — Common Stock (Indirect)
Following the death of the reporting person's spouse, such shares were transferred to the reporting person's adult children. The reporting person disclaims beneficial ownership of these shares, and this report should not be deemed an admission that the reporting person is the beneficial owner of these shares for purposes of Section 16 or for any other purpose. |
Common Stock
(I)
|
42,504 |
| 2026-01-10 | SPINDEL HOWARD |
Director |
Award↑
Filing footnotes — Stock Option (Direct)
The option vests in two equal installments on July 10, 2026 and July 10, 2027. |
Stock Option
|
20,000 |
| 2026-01-10 | Perlysky Dov |
Director |
Award↑
Filing footnotes — Stock Option (Direct)
The option vests in two equal installments on July 10, 2026 and July 10, 2027. |
Stock Option
|
20,000 |
| 2026-01-10 | WIESEN IRVING L |
Director |
Award↑
Filing footnotes — Stock Option (Direct)
The option vests in two equal installments on July 10, 2026 and July 10, 2027. |
Stock Option
|
20,000 |
| 2026-01-10 | MICHEL KIRK WHEELER |
Director, Chairman |
Award↑
Filing footnotes — Stock Option (Direct)
The option vested in two equal installments on July 10, 2026 and July 10, 2027. |
Stock Option
|
20,000 |
| 2025-01-10 | MICHEL KIRK WHEELER |
Director, Chairman |
Award↑
Filing footnotes — Stock Option (Direct)
The option vested in two equal installments on July 10, 2025 and July 10, 2026. |
Stock Option
|
20,000 |
| 2025-01-10 | Perlysky Dov |
Director |
Award↑
Filing footnotes — Stock Option (Direct)
The option vests in two equal installments on July 10, 2025 and July 10, 2026. |
Stock Option
|
20,000 |
| 2025-01-10 | SPINDEL HOWARD |
Director |
Award↑
Filing footnotes — Stock Option (Direct)
The option vests in two equal installments on July 10, 2025 and July 10, 2026. |
Stock Option
|
20,000 |
| 2025-01-10 | WIESEN IRVING L |
Director |
Award↑
Filing footnotes — Stock Option (Direct)
The option vests in two equal installments on July 10, 2025 and July 10, 2026. |
Stock Option
|
20,000 |
| 2024-01-10 | Perlysky Dov |
Director |
Award↑
Filing footnotes — Stock Option (Direct)
The option vests in two equal installments on July 10, 2024 and July 10, 2025. |
Stock Option
|
20,000 |
| 2024-01-10 | SPINDEL HOWARD |
Director |
Award↑
Filing footnotes — Stock Option (Direct)
The option vests in two equal installments on July 10, 2024 and July 10, 2025. |
Stock Option
|
20,000 |
| 2024-01-10 | MICHEL KIRK WHEELER |
Director, Chairman |
Award↑
Filing footnotes — Stock Option (Direct)
The option vests in two equal installments on July 10, 2024 and July 10, 2025. |
Stock Option
|
20,000 |
| 2024-01-10 | WIESEN IRVING L |
Director |
Award↑
Filing footnotes — Stock Option (Direct)
The option vests in two equal installments on July 10, 2024 and July 10, 2025. |
Stock Option
|
20,000 |
| 2024-01-05 | SPINDEL HOWARD |
Director |
Gift↓
Filing footnotes — Common Stock (Direct)
This transaction involved a gift of securities by the reporting person to his spouse. The reporting person disclaims beneficial ownership of the shares held by his spouse, and this report should not be deemed an admission that the reporting person is the beneficial owner of his spouse's shares for purposes of Section 16 or for any other purpose. |
Common Stock
|
1,132 |
| 2024-01-05 | MICHEL KIRK WHEELER |
Director, Chairman |
Tax↓
Filing footnotes — Common Stock (Direct)
Represents the aggregate amount of shares of Common Stock withheld for a cashless exercise. |
Common Stock
|
14,340 |
| 2024-01-05 | SPINDEL HOWARD |
Director |
Convert↑
|
Common Stock
|
20,000 |
| 2024-01-05 | SPINDEL HOWARD |
Director |
Gift↑
Filing footnotes — Common Stock (Indirect)
This transaction involved a gift of securities by the reporting person to his spouse. The reporting person disclaims beneficial ownership of the shares held by his spouse, and this report should not be deemed an admission that the reporting person is the beneficial owner of his spouse's shares for purposes of Section 16 or for any other purpose. |
Common Stock
(I)
|
1,132 |
| 2024-01-05 | MICHEL KIRK WHEELER |
Director, Chairman |
Convert↑
|
Common Stock
|
20,000 |
| 2024-01-05 | SPINDEL HOWARD |
Director |
Tax↓
Filing footnotes — Common Stock (Direct)
Represents the aggregate amount of shares of Common Stock withheld for a cashless exercise. |
Common Stock
|
18,868 |
| 2024-01-05 | SPINDEL HOWARD |
Director |
Convert↓
Filing footnotes — Stock Option (Direct)
The option vested in two equal installments on July 10, 2019 and July 10, 2020. |
Stock Option
|
20,000 |
| 2024-01-05 | MICHEL KIRK WHEELER |
Director, Chairman |
Convert↓
Filing footnotes — Stock Option (Direct)
The option vested in two equal installments on July 10, 2020 and July 10, 2021. |
Stock Option
|
20,000 |
| 2023-12-26 | LASANTA PEDRO J |
Chief Financial Officer |
Award↑
Filing footnotes — Stock Option (Direct)
The stock option vests in three equal annual installments beginning on December 26, 2024. |
Stock Option
|
10,000 |
| 2023-03-24 | MICHEL KIRK WHEELER |
Director, Chairman |
Convert↑
|
Common Stock
|
20,000 |
| 2023-03-24 | Perlysky Dov |
Director |
Tax↓
Filing footnotes — Common Stock (Direct)
Represents the aggregate amount of shares of Common Stock withheld for a cashless exercise. |
Common Stock
|
17,094 |
| 2023-03-24 | Perlysky Dov |
Director |
Convert↑
|
Common Stock
|
20,000 |
| 2023-03-24 | Perlysky Dov |
Director |
Tax↓
Filing footnotes — Common Stock (Direct)
Represents the aggregate amount of shares of Common Stock withheld for a cashless exercise. |
Common Stock
|
12,991 |
| 2023-03-24 | MICHEL KIRK WHEELER |
Director, Chairman |
Convert↓
Filing footnotes — Stock Option (Direct)
The option vested in two equal installments on July 10, 2019 and July 10, 2020. |
Stock Option
|
20,000 |
| 2023-03-24 | WIESEN IRVING L |
Director |
Convert↑
|
Common Stock
|
20,000 |
| 2023-03-24 | Perlysky Dov |
Director |
Convert↓
Filing footnotes — Stock Option (Direct)
The option vested in two equal installments on July 10, 2020 and July 10, 2021. |
Stock Option
|
20,000 |
| 2023-03-24 | WIESEN IRVING L |
Director |
Tax↓
Filing footnotes — Common Stock (Direct)
Represents the aggregate amount of shares of Common Stock withheld for a cashless exercise. |
Common Stock
|
12,991 |
| 2023-03-24 | Perlysky Dov |
Director |
Convert↓
Filing footnotes — Stock Option (Direct)
The option vested in two equal installments on July 10, 2019 and July 10, 2020. |
Stock Option
|
20,000 |
| 2023-03-24 | WIESEN IRVING L |
Director |
Convert↓
Filing footnotes — Stock Option (Direct)
The option vested in two equal installments on July 10, 2019 and July 10, 2020. |
Stock Option
|
20,000 |
| 2023-03-24 | WIESEN IRVING L |
Director |
Tax↓
Filing footnotes — Common Stock (Direct)
Represents the aggregate amount of shares of Common Stock withheld for a cashless exercise. |
Common Stock
|
17,094 |
| 2023-03-24 | MICHEL KIRK WHEELER |
Director, Chairman |
Tax↓
Filing footnotes — Common Stock (Direct)
Represents the aggregate amount of shares of Common Stock withheld for a cashless exercise. |
Common Stock
|
17,094 |
| 2023-03-24 | Perlysky Dov |
Director |
Convert↑
|
Common Stock
|
20,000 |
| 2023-03-24 | WIESEN IRVING L |
Director |
Convert↑
|
Common Stock
|
20,000 |
| 2023-03-24 | WIESEN IRVING L |
Director |
Convert↓
Filing footnotes — Stock Option (Direct)
The option vested in two equal installments on July 10, 2020 and July 10, 2021. |
Stock Option
|
20,000 |
| 2023-03-06 | LASANTA PEDRO J |
Chief Financial Officer |
Tax↓
Filing footnotes — Common Stock (Direct)
Represents the aggregate amount of shares of Common Stock withheld for a cashless exercise. |
Common Stock
|
76,522 |
| 2023-03-06 | Sanchez Altura Victor |
President and CEO |
Convert↓
Filing footnotes — Stock Option (Direct)
On December 9, 2021, the reporting person was granted a stock option to purchase 25,000 shares, which stock option vests in three equal installments beginning on December 9, 2022. |
Stock Option
|
8,325 |
| 2023-03-06 | LASANTA PEDRO J |
Chief Financial Officer |
Convert↑
|
Common Stock
|
8,325 |
| 2023-03-06 | LASANTA PEDRO J |
Chief Financial Officer |
Convert↓
Filing footnotes — Stock Option (Direct)
The stock option vested in three equal annual installments beginning on October 4, 2020. |
Stock Option
|
100,000 |
| 2023-03-06 | LASANTA PEDRO J |
Chief Financial Officer |
Tax↓
Filing footnotes — Common Stock (Direct)
Represents the aggregate amount of shares of Common Stock withheld for a cashless exercise. |
Common Stock
|
7,167 |
| 2023-03-06 | Sanchez Altura Victor |
President and CEO |
Convert↑
|
Common Stock
|
8,325 |
| 2023-03-06 | LASANTA PEDRO J |
Chief Financial Officer |
Convert↑
|
Common Stock
|
100,000 |
| 2023-03-06 | Sanchez Altura Victor |
President and CEO |
Tax↓
Filing footnotes — Common Stock (Direct)
Represents the aggregate amount of shares of Common Stock withheld for a cashless exercise. |
Common Stock
|
7,167 |
| 2023-03-06 | LASANTA PEDRO J |
Chief Financial Officer |
Convert↓
Filing footnotes — Stock Option (Direct)
On December 9, 2021, the reporting person was granted a stock option to purchase 25,000 shares, which stock option vests in three equal installments beginning on December 9, 2022. |
Stock Option
|
8,325 |
| 2023-01-10 | SPINDEL HOWARD |
Director |
Award↑
Filing footnotes — Stock Option (Direct)
The option vests in two equal installments on July 10, 2023 and July 10, 2024. |
Stock Option
|
20,000 |
| 2023-01-10 | Perlysky Dov |
Director |
Award↑
Filing footnotes — Stock Option (Direct)
The option vests in two equal installments on July 10, 2023 and July 10, 2024. |
Stock Option
|
20,000 |
| 2023-01-10 | MICHEL KIRK WHEELER |
Director, Chairman |
Award↑
Filing footnotes — Stock Option (Direct)
The option vests in two equal installments on July 10, 2023 and July 10, 2024. |
Stock Option
|
20,000 |
| 2023-01-10 | WIESEN IRVING L |
Director |
Award↑
Filing footnotes — Stock Option (Direct)
The option vests in two equal installments on July 10, 2023 and July 10, 2024. |
Stock Option
|
20,000 |