Western Standard Partners QP, L.P.
CIK 0001544857 Name as filed on the most recent filing
Filed as Western Standard Partners QP, L.P. (25)
62 transaction lines · from 25 filings · filed 2020-04-07 to 2023-12-28 The span is the filing dates this catalog holds, not the entity's full filing history. Absence here is not evidence of absence at the SEC.
A line appears here when the filing that carries it names this CIK as a reporting owner, not only when the parser picked this CIK as the line's primary owner. That is why a joint filing appears on both owners' pages rather than vanishing from the second one. The catalog never merges two CIKs into one person and never splits one CIK into two: identity here is the SEC's own identifier and nothing else.
Issuers this insider has filed against
Ordered by last-seen filing date, newest first. Roles are as filed on the Form 4 and are not normalised.
This container could not be filled from the store. It is showing nothing because a read failed, not because no insider filed: those are different facts and this catalog will not let one stand in for the other. The last ingest the store recorded was 2026-08-20 05:22 UTC.
No issuer is recorded
The catalog holds no filing linking this CIK to an issuer.
Transactions
Every stored Form 4 line naming this reporting owner, newest transaction date first. Each row links to the filing it came from.
0 transactions · Newest transaction date first, id breaking the tie.
This container could not be filled from the store. It is showing nothing because a read failed, not because no insider filed: those are different facts and this catalog will not let one stand in for the other. The last ingest the store recorded was 2026-08-20 05:22 UTC.
| Direction | Date | Issuer | Code | Shares | Price | Value USD | Filing |
|---|---|---|---|---|---|---|---|
| 2023-12-28 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 857 acquired | 13.35 | 11,441.21 | Form 4, filing 0000950170-23-073585 | |
| 2023-12-26 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 48,693 acquired | 13.15 | 640,312.95 | Form 4, filing 0000950170-23-073585 | |
| 2023-12-07 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 76,384 acquired | 12.85 | 981,519.12 | Form 4, filing 0000950170-23-069397 | |
| 2023-12-07 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 24,666 acquired | 12.85 | 316,953.17 | Form 4, filing 0000950170-23-069397 | |
| 2023-11-17 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 235 acquired | 12.50 | 2,937.50 | Form 4, filing 0000950170-23-065235 | |
| 2023-11-17 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 65 acquired | 12.50 | 812.50 | Form 4, filing 0000950170-23-065235 | |
| 2023-11-14 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 39,283 acquired | 12.50 | 491,037.50 | Form 4, filing 0000950170-23-064564 | |
| 2023-11-14 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 10,887 acquired | 12.50 | 136,087.50 | Form 4, filing 0000950170-23-064564 | |
| 2023-11-13 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 12,191 acquired | 12.39 | 151,017.23 | Form 4, filing 0000950170-23-063800 | |
| 2023-11-13 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 3,379 acquired | 12.39 | 41,857.70 | Form 4, filing 0000950170-23-063800 | |
| 2023-11-10 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 29,803 acquired | 12.32 | 367,238.53 | Form 4, filing 0000950170-23-063800 | |
| 2023-11-10 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 8,259 acquired | 12.32 | 101,769.05 | Form 4, filing 0000950170-23-063800 | |
| 2023-11-09 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 7,810 acquired | 12.19 | 95,221.86 | Form 4, filing 0000950170-23-062911 | |
| 2023-11-09 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 2,165 acquired | 12.19 | 26,396.33 | Form 4, filing 0000950170-23-062911 | |
| 2023-11-08 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 9,040 acquired | 12.13 | 109,673.28 | Form 4, filing 0000950170-23-062911 | |
| 2023-11-08 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 4,783 acquired | 12.13 | 58,027.36 | Form 4, filing 0000950170-23-062911 | |
| 2023-08-08 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 68,431 acquired | 12.00 | 820,891.43 | Form 4, filing 0000950170-23-040559 | |
| 2023-08-08 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 18,626 acquired | 12.00 | 223,435.63 | Form 4, filing 0000950170-23-040559 | |
| 2023-08-07 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 84,636 acquired | 12.00 | 1,015,945.15 | Form 4, filing 0000950170-23-040559 | |
| 2023-08-07 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 49,857 acquired | 12.00 | 598,468.47 | Form 4, filing 0000950170-23-040559 | |
| 2023-03-21 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 127,409 acquired | 11.52 | 1,467,751.68 | Form 4, filing 0000950170-23-009171 | |
| 2023-03-21 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 33,181 acquired | 11.52 | 382,245.12 | Form 4, filing 0000950170-23-009171 | |
| 2023-01-31 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 1,782 acquired | 11.40 | 20,314.44 | Form 4, filing 0000899243-23-006607 | |
| 2023-01-31 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 450 acquired | 11.40 | 5,129.91 | Form 4, filing 0000899243-23-006607 | |
| 2023-01-31 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 1,782 acquired | 11.40 | 20,314.44 | Form 4, filing 0000899243-23-003115 | |
| 2023-01-31 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 450 acquired | 11.40 | 5,129.91 | Form 4, filing 0000899243-23-003115 | |
| 2023-01-30 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 4,985 acquired | 11.36 | 56,617.64 | Form 4, filing 0000899243-23-006607 | |
| 2023-01-30 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 19,750 acquired | 11.36 | 224,312.60 | Form 4, filing 0000899243-23-006607 | |
| 2023-01-30 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 19,750 acquired | 11.36 | 224,312.60 | Form 4, filing 0000899243-23-003115 | |
| 2023-01-30 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 4,958 acquired | 11.36 | 56,310.98 | Form 4, filing 0000899243-23-003115 | |
| 2023-01-27 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 17,465 acquired | 11.40 | 199,039.87 | Form 4, filing 0000899243-23-003033 | |
| 2023-01-27 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 4,410 acquired | 11.40 | 50,258.56 | Form 4, filing 0000899243-23-003033 | |
| 2023-01-03 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 22,413 acquired | 11.33 | 254,011.01 | Form 4, filing 0000899243-23-000581 | |
| 2023-01-03 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 8,219 acquired | 11.33 | 93,147.57 | Form 4, filing 0000899243-23-000581 | |
| 2022-12-30 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 33,030 acquired | 11.33 | 374,319.08 | Form 4, filing 0000899243-23-000225 | |
| 2022-12-30 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 8,270 acquired | 11.33 | 93,721.43 | Form 4, filing 0000899243-23-000225 | |
| 2022-12-29 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 189,975 acquired | 10.55 | 2,004,293.24 | Form 4, filing 0000899243-23-000225 | |
| 2022-12-29 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 28,661 acquired | 10.55 | 302,382.15 | Form 4, filing 0000899243-23-000225 | |
| 2021-07-01 |
Merrimack Pharmaceuticals Inc MACK |
S, Open-market sale | 52,914 disposed | 6.39 | 338,120.46 | Form 4, filing 0000899243-21-036576 | |
| 2021-07-01 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 52,914 acquired | 6.39 | 338,120.46 | Form 4, filing 0000899243-21-036576 | |
| 2021-04-14 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 6,495 acquired | 6.63 | 43,080.69 | Form 4, filing 0000899243-21-036576 | |
| 2021-04-14 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 40,805 acquired | 6.63 | 270,655.48 | Form 4, filing 0000899243-21-036576 | |
| 2021-04-14 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 40,805 acquired | 6.63 | 270,655.48 | Form 4, filing 0000899243-21-016103 | |
| 2021-04-14 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 6,495 acquired | 6.63 | 43,080.69 | Form 4, filing 0000899243-21-016103 | |
| 2021-04-13 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 9,874 acquired | 6.26 | 61,779.64 | Form 4, filing 0000899243-21-015953 | |
| 2021-04-12 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 23,629 acquired | 6.06 | 143,194.10 | Form 4, filing 0000899243-21-015803 | |
| 2020-11-24 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 51,074 acquired | 3.65 | 186,420.10 | Form 4, filing 0000899243-20-032257 | |
| 2020-11-24 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 18,014 acquired | 3.65 | 65,751.10 | Form 4, filing 0000899243-20-032257 | |
| 2020-11-12 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 54,531 acquired | 3.65 | 199,038.15 | Form 4, filing 0000899243-20-031116 | |
| 2020-11-12 |
Merrimack Pharmaceuticals Inc MACK |
P, Open-market purchase | 1,959 acquired | 3.65 | 7,150.35 | Form 4, filing 0000899243-20-031116 |
This column is intentionally blank
No transaction line is stored for this reporting owner, though the catalog holds filings naming them. That happens when the filings report only holdings or only positions the store does not carry, and when a parse failed; each filing page states its own parse status.
- P, Open-market purchase
- Open-market purchase
- S, Open-market sale
- Open-market sale
Every value is as reported on the Form 4. A price the filing did not report is marked Not reported and no value is computed from it. Codes outside the open market, drawn in grey behind a dashed rule, are compensation and administrative machinery rather than a decision to trade at the prevailing price.
What this insider's stored lines contain
No transaction line is stored for this entity, so there is nothing to break down by code. The catalog holds its filings; what it does not hold is a single reportable line from them, which is a fact about the parse and about these filings, not about the entity.
How to cite this page
ebomi catalog. Western Standard Partners QP, L.P., insider transactions. Retrieved 2026-08-20 from https://ebomi.com/insider/0001544857
Balogh, A. Insider trading. Scientific Data 10, 237 (2023) doi:10.1038/s41597-023-02147-6