Arbo · 13F Signal Engine

Insider

Form 4/4-A open-market insider transactions (officers, directors, 10% owners) · 141 transactions

Table I (non-derivative) transactions only -- common stock bought, sold, awarded, exercised, or tax-withheld. Covers this app's full ticker Universe (backfilled INSIDER_LOOKBACK_QUARTERS quarters back, continuously monitored) plus whatever the market-wide discovery has found beyond it. Informational only: never summed into the core flow ranking.

Ticker	Insider	Role	Type	Date	Shares	Price	Value	Notes	Filing
OPCH	Bhatia Prateek	EVP Sp Sales & Solutions	Award	2026-07-06	23,409	—	—	Acquired (39,795 owned after)	EDGAR
OPCH	Bhatia Prateek	EVP Sp Sales & Solutions	Award	2026-07-06	16,386	—	—	Acquired (16,386 owned after)	EDGAR
OPCH	Pate R Carter	Director	Award	2026-05-20	8,997	—	—	Acquired (20,620 owned after)	EDGAR
OPCH	KRAEMER HARRY M JANSEN JR	Director	Award	2026-05-20	8,997	—	—	Acquired (458,997 owned after)	EDGAR
OPCH	KRAEMER HARRY M JANSEN JR	Director	Award	2026-05-20	12,079	$22.23	$268,516	Acquired (471,076 owned after)	EDGAR
OPCH	BRANDT ERIC	Director	Award	2026-05-20	8,997	—	—	Acquired (19,356 owned after)	EDGAR
OPCH	BRANDT ERIC	Director	Award	2026-05-20	2,643	$22.23	$58,754	Acquired (21,999 owned after)	EDGAR
OPCH	Wright Norman L.	Director	Award	2026-05-20	8,997	—	—	Acquired (24,498 owned after)	EDGAR
OPCH	SULLIVAN TIMOTHY P	Director	Award	2026-05-20	4,836	$22.23	$107,504	Acquired (87,216 owned after)	EDGAR
OPCH	SULLIVAN TIMOTHY P	Director	Award	2026-05-20	8,997	—	—	Acquired (82,380 owned after)	EDGAR
OPCH	Deckmann Natasha	Director	Award	2026-05-20	8,997	—	—	Acquired (31,158 owned after)	EDGAR
OPCH	Bodem Barbara W.	Director	Award	2026-05-20	8,997	—	—	Acquired (21,087 owned after)	EDGAR
OPCH	Bierbower Elizabeth D	Director	Award	2026-05-20	8,997	—	—	Acquired (32,871 owned after)	EDGAR
OPCH	Deckmann Natasha	Director	Award	2026-05-20	844	$22.23	$18,762	Acquired (32,002 owned after)	EDGAR
OPCH	Smyser Collin	GC & Corporate Secretary	Tax withholding	2026-05-19	360	$20.86	$7,510	Disposed (75,012 owned after)	EDGAR
OPCH	Smyser Collin	GC & Corporate Secretary	Option exercise	2026-05-19	812	—	—	Acquired (75,372 owned after)	EDGAR
OPCH	SULLIVAN TIMOTHY P	Director	Purchase	2026-05-07	24,154	$20.69	$499,671	Acquired (73,383 owned after)	EDGAR
OPCH	RADEMACHER JOHN CHARLES	Chief Executive Officer	Purchase	2026-05-04	12,500	$21.18	$264,706	Acquired (695,152 owned after)	EDGAR
OPCH	Sethna Meenal	Chief Financial Officer	Purchase	2026-05-04	16,225	$20.16	$327,075	Acquired (98,337 owned after)	EDGAR
OPCH	KRAEMER HARRY M JANSEN JR	Director	Purchase	2026-05-04	36,610	$21.41	$783,773	Acquired (450,000 owned after)	EDGAR
OPCH	Adewunmi Femi	Chief Medical Officer	Tax withholding	2026-04-22	1,396	$28.38	$39,618	Disposed (25,314 owned after)	EDGAR
OPCH	Bavaro Michael	Chief Human Resources Officer	Sale	2026-02-27	6,000	$33.00	$198,000	Disposed (33,249 owned after)	EDGAR
OPCH	Pate R Carter	Director	Sale	2026-02-27	30,287	$32.05	$970,620	Disposed (11,623 owned after)	EDGAR
OPCH	Maggio Nicole	Chief Accounting Officer	Tax withholding	2026-02-24	975	$33.81	$32,970	Disposed (28,489 owned after)	EDGAR
OPCH	Adewunmi Femi	Chief Medical Officer	Tax withholding	2026-02-24	1,627	$33.81	$55,017	Disposed (26,710 owned after)	EDGAR
OPCH	RADEMACHER JOHN CHARLES	Chief Executive Officer	Tax withholding	2026-02-24	11,050	$33.81	$373,656	Disposed (682,652 owned after)	EDGAR
OPCH	Smyser Collin	GC & Corporate Secretary	Tax withholding	2026-02-24	2,210	$33.81	$74,731	Disposed (74,560 owned after)	EDGAR
OPCH	Grashoff Christopher L.	Chief Growth Officer	Tax withholding	2026-02-24	1,980	$33.81	$66,954	Disposed (44,092 owned after)	EDGAR
OPCH	Whitworth Luke	Chief Operating Officer	Tax withholding	2026-02-24	4,605	$33.81	$155,718	Disposed (169,589 owned after)	EDGAR
OPCH	Bavaro Michael	Chief Human Resources Officer	Tax withholding	2026-02-24	1,354	$33.81	$45,786	Disposed (39,249 owned after)	EDGAR
OPCH	Maggio Nicole	Chief Accounting Officer	Tax withholding	2026-02-22	372	$35.69	$13,277	Disposed (29,464 owned after)	EDGAR
OPCH	Whitworth Luke	Chief Operating Officer	Tax withholding	2026-02-22	24,029	$35.69	$857,595	Disposed (174,194 owned after)	EDGAR
OPCH	Bavaro Michael	Chief Human Resources Officer	Tax withholding	2026-02-22	12,212	$35.69	$435,846	Disposed (40,603 owned after)	EDGAR
OPCH	Smyser Collin	GC & Corporate Secretary	Tax withholding	2026-02-22	15,433	$35.69	$550,804	Disposed (76,770 owned after)	EDGAR
OPCH	RADEMACHER JOHN CHARLES	Chief Executive Officer	Tax withholding	2026-02-22	132,848	$35.69	$4,741,345	Disposed (693,702 owned after)	EDGAR
OPCH	Grashoff Christopher L.	Chief Growth Officer	Tax withholding	2026-02-22	538	$35.69	$19,201	Disposed (46,072 owned after)	EDGAR
OPCH	RADEMACHER JOHN CHARLES	Chief Executive Officer	Tax withholding	2026-02-21	4,956	$35.69	$176,880	Disposed (826,550 owned after)	EDGAR
OPCH	RADEMACHER JOHN CHARLES	Chief Executive Officer	Option exercise	2026-02-21	11,087	—	—	Acquired (831,506 owned after)	EDGAR
OPCH	Smyser Collin	GC & Corporate Secretary	Tax withholding	2026-02-20	2,012	$35.69	$71,808	Disposed (92,203 owned after)	EDGAR
OPCH	Maggio Nicole	Chief Accounting Officer	Tax withholding	2026-02-20	619	$35.69	$22,092	Disposed (29,836 owned after)	EDGAR
OPCH	Whitworth Luke	Chief Operating Officer	Tax withholding	2026-02-20	4,015	$35.69	$143,295	Disposed (198,223 owned after)	EDGAR
OPCH	Grashoff Christopher L.	Chief Growth Officer	Tax withholding	2026-02-20	1,948	$35.69	$69,524	Disposed (46,610 owned after)	EDGAR
OPCH	RADEMACHER JOHN CHARLES	Chief Executive Officer	Tax withholding	2026-02-20	10,638	$35.69	$379,670	Disposed (820,419 owned after)	EDGAR
OPCH	Bavaro Michael	Chief Human Resources Officer	Tax withholding	2026-02-20	1,187	$35.69	$42,364	Disposed (52,815 owned after)	EDGAR
OPCH	Smyser Collin	GC & Corporate Secretary	Award	2026-02-18	15,213	—	—	Acquired (94,215 owned after)	EDGAR
OPCH	Whitworth Luke	Chief Operating Officer	Award	2026-02-18	30,423	—	—	Acquired (202,238 owned after)	EDGAR
OPCH	Adewunmi Femi	Chief Medical Officer	Award	2026-02-18	9,579	—	—	Acquired (28,337 owned after)	EDGAR
OPCH	Maggio Nicole	Chief Accounting Officer	Award	2026-02-18	4,226	—	—	Acquired (30,455 owned after)	EDGAR
OPCH	Bavaro Michael	Chief Human Resources Officer	Award	2026-02-18	9,579	—	—	Acquired (54,002 owned after)	EDGAR
OPCH	Grashoff Christopher L.	Chief Growth Officer	Award	2026-02-18	12,678	—	—	Acquired (48,558 owned after)	EDGAR
OPCH	Sethna Meenal	Chief Financial Officer	Award	2026-02-18	27,045	—	—	Acquired (82,112 owned after)	EDGAR
OPCH	RADEMACHER JOHN CHARLES	Chief Executive Officer	Award	2026-02-18	78,876	—	—	Acquired (831,057 owned after)	EDGAR
OPCH	Whitworth Luke	Chief Operating Officer	Tax withholding	2026-02-17	508	$35.24	$17,902	Disposed (171,815 owned after)	EDGAR
OPCH	Bavaro Michael	Chief Human Resources Officer	Tax withholding	2026-02-17	551	$35.24	$19,417	Disposed (44,423 owned after)	EDGAR
OPCH	Maggio Nicole	Chief Accounting Officer	Tax withholding	2026-02-17	247	$35.24	$8,704	Disposed (26,229 owned after)	EDGAR
OPCH	Grashoff Christopher L.	Chief Growth Officer	Tax withholding	2026-02-17	259	$35.24	$9,127	Disposed (35,880 owned after)	EDGAR
OPCH	KRAEMER HARRY M JANSEN JR	Director	Purchase	2025-11-03	38,000	$25.98	$987,392	Acquired (413,390 owned after)	EDGAR
OPCH	Sethna Meenal	Chief Financial Officer	Award	2025-10-01	55,067	—	—	Acquired (55,067 owned after)	EDGAR
OPCH	Wright Norman L.	Director	Purchase	2025-09-09	3,411	$29.31	$99,976	Acquired (15,501 owned after)	EDGAR
OPCH	GOLDING DAVID W	Director	Purchase	2025-08-21	1,000	$27.62	$27,625	Acquired (116,525 owned after)	EDGAR
OPCH	SULLIVAN TIMOTHY P	Director	Purchase	2025-08-21	20,000	$27.51	$550,200	Acquired (49,229 owned after)	EDGAR
OPCH	KRAEMER HARRY M JANSEN JR	Director	Purchase	2025-08-20	36,000	$27.15	$977,278	Acquired (375,390 owned after)	EDGAR
OPCH	Pate R Carter	Director	Purchase	2025-08-20	750	$27.19	$20,391	Acquired (41,910 owned after)	EDGAR
OPCH	Maggio Nicole	Chief Accounting Officer	Award	2025-08-06	7,167	—	—	Acquired (26,476 owned after)	EDGAR
OPCH	Smyser Collin	GC & Corporate Secretary	Tax withholding	2025-05-19	10,713	$33.09	$354,493	Disposed (79,002 owned after)	EDGAR
OPCH	Smyser Collin	GC & Corporate Secretary	Option exercise	2025-05-19	812	—	—	Acquired (79,331 owned after)	EDGAR
OPCH	Smyser Collin	GC & Corporate Secretary	Option exercise	2025-05-19	10,384	—	—	Acquired (89,715 owned after)	EDGAR
OPCH	KRAEMER HARRY M JANSEN JR	Director	Award	2025-05-14	8,022	$31.79	$255,019	Acquired (339,390 owned after)	EDGAR
OPCH	BETTEN ELIZABETH QUADROS	Director	Award	2025-05-14	5,034	—	—	Acquired (26,373 owned after)	EDGAR
OPCH	Pate R Carter	Director	Award	2025-05-14	5,034	—	—	Acquired (41,160 owned after)	EDGAR
OPCH	GOLDING DAVID W	Director	Award	2025-05-14	5,034	—	—	Acquired (112,144 owned after)	EDGAR
OPCH	GOLDING DAVID W	Director	Award	2025-05-14	3,381	$31.79	$107,482	Acquired (115,525 owned after)	EDGAR
OPCH	Wright Norman L.	Director	Award	2025-05-14	5,034	—	—	Acquired (12,090 owned after)	EDGAR
OPCH	KRAEMER HARRY M JANSEN JR	Director	Award	2025-05-14	5,034	—	—	Acquired (331,368 owned after)	EDGAR
OPCH	BRANDT ERIC	Director	Award	2025-05-14	5,034	—	—	Acquired (10,359 owned after)	EDGAR
OPCH	Deckmann Natasha	Director	Award	2025-05-14	5,034	—	—	Acquired (21,534 owned after)	EDGAR
OPCH	Deckmann Natasha	Director	Award	2025-05-14	627	$31.79	$19,932	Acquired (22,161 owned after)	EDGAR
OPCH	Bodem Barbara W.	Director	Award	2025-05-14	5,034	—	—	Acquired (12,090 owned after)	EDGAR
OPCH	Bierbower Elizabeth D	Director	Award	2025-05-14	5,034	—	—	Acquired (23,874 owned after)	EDGAR
OPCH	SULLIVAN TIMOTHY P	Director	Award	2025-05-14	5,034	—	—	Acquired (25,848 owned after)	EDGAR
OPCH	SULLIVAN TIMOTHY P	Director	Award	2025-05-14	3,381	$31.79	$107,482	Acquired (29,229 owned after)	EDGAR
OPCH	Adewunmi Femi	Chief Medical Officer	Tax withholding	2025-04-22	1,396	$31.54	$44,030	Disposed (18,758 owned after)	EDGAR
OPCH	Bavaro Michael	Chief Human Resources Officer	Sale	2025-02-28	30,996	$33.26	$1,030,843	Disposed (44,974 owned after)	EDGAR
OPCH	Bavaro Michael	Chief Human Resources Officer	Option exercise	2025-02-28	1,226	$18.97	$23,257	Acquired (62,457 owned after)	EDGAR
OPCH	Bavaro Michael	Chief Human Resources Officer	Option exercise	2025-02-28	2,386	$28.86	$68,860	Acquired (75,970 owned after)	EDGAR
OPCH	Bavaro Michael	Chief Human Resources Officer	Option exercise	2025-02-28	2,153	$23.96	$51,586	Acquired (73,584 owned after)	EDGAR
OPCH	Bavaro Michael	Chief Human Resources Officer	Option exercise	2025-02-28	8,974	$25.75	$231,080	Acquired (71,431 owned after)	EDGAR
OPCH	SHAPIRO MICHAEL H.	Chief Financial Officer	Award	2025-02-24	31,173	—	—	Acquired (311,933 owned after)	EDGAR
OPCH	RADEMACHER JOHN CHARLES	Chief Executive Officer	Award	2025-02-24	74,814	—	—	Acquired (752,181 owned after)	EDGAR
OPCH	Smyser Collin	GC & Corporate Secretary	Award	2025-02-24	14,964	—	—	Acquired (78,519 owned after)	EDGAR
OPCH	Maggio Nicole	Chief Accounting Officer	Award	2025-02-24	5,892	—	—	Acquired (19,309 owned after)	EDGAR
OPCH	Bavaro Michael	Chief Human Resources Officer	Award	2025-02-24	10,599	—	—	Acquired (61,231 owned after)	EDGAR
OPCH	Whitworth Luke	Chief Operating Officer	Award	2025-02-24	31,173	—	—	Acquired (172,323 owned after)	EDGAR
OPCH	Adewunmi Femi	Chief Medical Officer	Award	2025-02-24	10,287	—	—	Acquired (20,154 owned after)	EDGAR
OPCH	Grashoff Christopher L.	Chief Growth Officer	Award	2025-02-24	13,404	—	—	Acquired (36,139 owned after)	EDGAR
OPCH	Maggio Nicole	Chief Accounting Officer	Tax withholding	2025-02-23	339	$32.00	$10,848	Disposed (13,417 owned after)	EDGAR
OPCH	Whitworth Luke	Chief Operating Officer	Tax withholding	2025-02-23	785	$32.00	$25,120	Disposed (141,150 owned after)	EDGAR
OPCH	RADEMACHER JOHN CHARLES	Chief Executive Officer	Tax withholding	2025-02-23	5,872	$32.00	$187,904	Disposed (677,367 owned after)	EDGAR
OPCH	Grashoff Christopher L.	Chief Growth Officer	Tax withholding	2025-02-23	267	$32.00	$8,544	Disposed (22,735 owned after)	EDGAR
OPCH	SHAPIRO MICHAEL H.	Chief Financial Officer	Tax withholding	2025-02-23	1,881	$32.00	$60,192	Disposed (280,760 owned after)	EDGAR
OPCH	Bavaro Michael	Chief Human Resources Officer	Tax withholding	2025-02-23	267	$32.00	$8,544	Disposed (50,632 owned after)	EDGAR
OPCH	SHAPIRO MICHAEL H.	Chief Financial Officer	Tax withholding	2025-02-22	2,048	$32.00	$65,536	Disposed (282,641 owned after)	EDGAR
OPCH	Whitworth Luke	Chief Operating Officer	Tax withholding	2025-02-22	1,438	$32.00	$46,016	Disposed (141,935 owned after)	EDGAR
OPCH	Smyser Collin	GC & Corporate Secretary	Tax withholding	2025-02-22	619	$32.00	$19,808	Disposed (63,555 owned after)	EDGAR
OPCH	Bavaro Michael	Chief Human Resources Officer	Tax withholding	2025-02-22	554	$32.00	$17,728	Disposed (50,899 owned after)	EDGAR
OPCH	RADEMACHER JOHN CHARLES	Chief Executive Officer	Tax withholding	2025-02-22	5,310	$32.00	$169,920	Disposed (683,239 owned after)	EDGAR
OPCH	Grashoff Christopher L.	Chief Growth Officer	Tax withholding	2025-02-22	462	$32.00	$14,784	Disposed (23,002 owned after)	EDGAR
OPCH	Maggio Nicole	Chief Accounting Officer	Tax withholding	2025-02-22	357	$32.00	$11,424	Disposed (13,756 owned after)	EDGAR
OPCH	RADEMACHER JOHN CHARLES	Chief Executive Officer	Tax withholding	2025-02-21	4,912	$32.00	$157,184	Disposed (767,161 owned after)	EDGAR
OPCH	RADEMACHER JOHN CHARLES	Chief Executive Officer	Tax withholding	2025-02-21	78,612	$32.00	$2,515,584	Disposed (688,549 owned after)	EDGAR
OPCH	RADEMACHER JOHN CHARLES	Chief Executive Officer	Option exercise	2025-02-21	11,087	—	—	Acquired (772,073 owned after)	EDGAR
OPCH	Smyser Collin	GC & Corporate Secretary	Tax withholding	2025-02-20	1,384	$32.39	$44,828	Disposed (64,174 owned after)	EDGAR
OPCH	Maggio Nicole	Chief Accounting Officer	Tax withholding	2025-02-20	432	$32.39	$13,992	Disposed (14,113 owned after)	EDGAR
OPCH	Grashoff Christopher L.	Chief Growth Officer	Tax withholding	2025-02-20	1,677	$32.39	$54,318	Disposed (23,464 owned after)	EDGAR
OPCH	Whitworth Luke	Chief Operating Officer	Tax withholding	2025-02-20	3,923	$32.39	$127,066	Disposed (143,373 owned after)	EDGAR
OPCH	Bavaro Michael	Chief Human Resources Officer	Tax withholding	2025-02-20	1,019	$32.39	$33,005	Disposed (51,453 owned after)	EDGAR
OPCH	SHAPIRO MICHAEL H.	Chief Financial Officer	Tax withholding	2025-02-20	5,426	$32.39	$175,748	Disposed (284,689 owned after)	EDGAR
OPCH	RADEMACHER JOHN CHARLES	Chief Executive Officer	Tax withholding	2025-02-20	10,630	$32.39	$344,306	Disposed (760,986 owned after)	EDGAR
OPCH	Whitworth Luke	Chief Operating Officer	Award	2025-02-18	40,893	—	—	Acquired (147,296 owned after)	EDGAR
OPCH	Bavaro Michael	Chief Human Resources Officer	Award	2025-02-18	17,219	—	—	Acquired (52,472 owned after)	EDGAR
OPCH	Smyser Collin	GC & Corporate Secretary	Award	2025-02-18	23,676	—	—	Acquired (65,558 owned after)	EDGAR
OPCH	RADEMACHER JOHN CHARLES	Chief Executive Officer	Award	2025-02-18	157,830	—	—	Acquired (771,616 owned after)	EDGAR
OPCH	SHAPIRO MICHAEL H.	Chief Financial Officer	Award	2025-02-18	57,394	—	—	Acquired (290,115 owned after)	EDGAR
OPCH	Bavaro Michael	Chief Human Resources Officer	Tax withholding	2025-02-17	473	$31.46	$14,881	Disposed (42,044 owned after)	EDGAR
OPCH	Bavaro Michael	Chief Human Resources Officer	Tax withholding	2025-02-17	6,791	$31.46	$213,645	Disposed (35,253 owned after)	EDGAR
OPCH	Grashoff Christopher L.	Chief Growth Officer	Tax withholding	2025-02-17	223	$31.46	$7,016	Disposed (25,141 owned after)	EDGAR
OPCH	SHAPIRO MICHAEL H.	Chief Financial Officer	Tax withholding	2025-02-17	26,017	$31.46	$818,495	Disposed (232,721 owned after)	EDGAR
OPCH	Whitworth Luke	Chief Operating Officer	Tax withholding	2025-02-17	497	$31.46	$15,636	Disposed (113,598 owned after)	EDGAR
OPCH	Whitworth Luke	Chief Operating Officer	Tax withholding	2025-02-17	7,195	$31.46	$226,355	Disposed (106,403 owned after)	EDGAR
OPCH	Maggio Nicole	Chief Accounting Officer	Tax withholding	2025-02-17	172	$31.46	$5,411	Disposed (14,545 owned after)	EDGAR
OPCH	SHAPIRO MICHAEL H.	Chief Financial Officer	Option exercise	2025-02-17	3,652	—	—	Acquired (260,487 owned after)	EDGAR
OPCH	SHAPIRO MICHAEL H.	Chief Financial Officer	Tax withholding	2025-02-17	1,749	$31.46	$55,024	Disposed (258,738 owned after)	EDGAR
OPCH	KRAEMER HARRY M JANSEN JR	Director	Purchase	2024-11-08	43,000	$22.54	$969,031	Acquired (326,334 owned after)	EDGAR
OPCH	RADEMACHER JOHN CHARLES	Chief Executive Officer	Option exercise	2024-10-26	31,216	—	—	Acquired (627,615 owned after)	EDGAR
OPCH	RADEMACHER JOHN CHARLES	Chief Executive Officer	Tax withholding	2024-10-26	13,829	$29.45	$407,264	Disposed (613,786 owned after)	EDGAR
OPCH	Maggio Nicole	Chief Accounting Officer	Tax withholding	2024-10-21	342	$30.51	$10,434	Disposed (14,717 owned after)	EDGAR
OPCH	SHAPIRO MICHAEL H.	Chief Financial Officer	Option exercise	2024-10-21	17,088	—	—	Acquired (264,405 owned after)	EDGAR
OPCH	Whitworth Luke	Chief Operating Officer	Tax withholding	2024-10-21	3,785	$30.51	$115,480	Disposed (114,095 owned after)	EDGAR
OPCH	Bavaro Michael	Chief Human Resources Officer	Tax withholding	2024-10-21	911	$30.51	$27,795	Disposed (42,517 owned after)	EDGAR
OPCH	Grashoff Christopher L.	Chief Growth Officer	Tax withholding	2024-10-21	911	$30.51	$27,795	Disposed (25,364 owned after)	EDGAR
OPCH	SHAPIRO MICHAEL H.	Chief Financial Officer	Tax withholding	2024-10-21	7,570	$30.51	$230,961	Disposed (256,835 owned after)	EDGAR

Long US-equity 13F disclosures only · up to 45-day reporting lag · sells = reduce/avoid, not short. JSON: /api/signals · /api/funds · /api/status