As of May 26th, 2025, there has been substantial selling of Mast Therapeutics Inc. in recent trading

The chart below shows ALL of the short selling each day in MAST THERAPEUTICS INC. (MSTX). We have consolidated the tape of ALL US stock exchanges and dark pools (this means we get the TRADE IDENTIFIER showing whether the trade was a buy, sell or sell short). The data below shows just the short sales each day in your stock. It includes both EXEMPT (market makers) and NON-EXEMPT (everyone else) short sales in MAST THERAPEUTICS INC.. An average of 41.56% of the daily trading in MSTX is short selling. This is abnormally high and implies there is illicit trading taking place in your stock. We run automated surveillance and reporting algorithms that report manipulative market making and short selling (to FINRA, SEC, Whistleblower's Office and Dept of Treasury FINCEN). We then issue FINRA COMPLIANT research to our large user base to counteract this activity that is driving MSTX lower unfairly.

You can find the full report at [ https://www.woprai.com/ ]

Please find the applicable data below, drawn from all major market providers.

Date	Short Volume	Total Volume	Percentage	Squeeze Trigger	$ Value
2025-05-23	5,517,476	12,291,397	44.89	37.28	205,691,505
2025-05-22	3,553,374	10,113,841	35.13	43.96	156,206,321
2025-05-21	5,519,392	13,066,367	42.24	44.08	243,294,799
2025-05-20	3,311,984	6,344,541	52.2	44.79	148,343,763
2025-05-19	3,308,793	7,404,399	44.69	43.82	144,991,309
2025-05-16	2,888,204	7,395,578	39.05	41.93	121,102,394
2025-05-15	3,169,831	7,506,427	42.23	42.91	136,017,448
2025-05-14	2,572,688	5,953,402	43.21	46.36	119,269,816
2025-05-13	3,446,591	8,170,682	42.18	45.53	156,923,288
2025-05-12	3,916,345	8,818,389	44.41	44.54	174,434,006
2025-05-09	3,900,697	8,897,983	43.84	46.45	181,187,376
2025-05-08	6,764,039	12,420,439	54.46	45.97	310,942,873
2025-05-07	3,754,299	7,381,220	50.86	41.38	155,352,893
2025-05-06	3,029,523	8,225,651	36.83	39.28	118,999,663
2025-05-05	3,132,844	10,873,356	28.81	38.99	122,149,588
2025-05-02	3,947,088	9,808,435	40.24	41.94	165,540,871
2025-05-01	4,097,933	12,226,447	33.52	41.66	170,719,889
2025-04-30	2,187,538	8,520,198	25.67	38.42	84,045,210
2025-04-29	3,382,681	8,728,874	38.75	38.67	130,808,274
2025-04-28	3,407,968	8,535,032	39.93	35.93	122,448,290
2025-04-25	5,595,780	12,617,703	44.35	36.45	203,966,181
2025-04-24	3,511,042	8,725,864	40.24	32.94	115,653,723
2025-04-23	7,263,388	13,805,776	52.61	33	239,691,804
2025-04-22	8,933,069	15,541,367	57.48	32.08	286,572,854
2025-04-21	6,079,202	11,408,374	53.29	28.25	171,737,457
2025-04-17	3,937,461	8,517,149	46.23	27.24	107,256,438
2025-04-16	5,223,036	9,999,991	52.23	26.93	140,656,359
2025-04-15	4,027,550	9,054,482	44.48	27.12	109,227,156
2025-04-14	3,891,292	9,745,393	39.93	26.35	102,535,544
2025-04-11	4,076,984	13,063,849	31.21	23.85	97,236,068
2025-04-10	4,290,782	14,006,862	30.63	21.21	91,007,486
2025-04-09	9,188,039	23,053,875	39.85	21.28	195,521,470
2025-04-08	6,617,196	19,038,622	34.76	20.14	133,270,327
2025-04-07	5,496,381	16,358,504	33.6	22.06	121,250,165
2025-04-04	6,258,638	16,424,570	38.11	24.43	152,898,526
2025-04-03	4,000,604	11,282,544	35.46	25.28	101,135,269
2025-04-02	4,262,001	9,039,029	47.15	29.65	126,368,330

Total	268,736,962	633,289,929	42.44	31.47	8,455,812,903

* Totals include all data records back to 2025-03-06 00:00:00, data set is truncated for viewing.

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As of May 26th, 2025, there has been substantial selling of Mast Therapeutics Inc. in recent trading