Gene therapy preparations manufacturing · California

Atara Biotherapeutics - ARC

Thousand Oaks, CA · ~57 workers · 3 years of OSHA Injury Tracking Application data.

D
Poor Safety Record
5.9
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

Atara Biotherapeutics - ARC runs at 179% of its industry's injury rate - more dangerous than the typical Gene therapy preparations manufacturing workplace, earning a grade D.

Atara Biotherapeutics - ARC: 5.9 TCR = 179% of Gene therapy preparations manufacturing BLS 3.3 · 3y Form 300A (see methodology below)

Atara Biotherapeutics - ARC safety composite

Atara Biotherapeutics - ARC scores strongest on dart rate (safer than 83% of same-industry peers) and weakest on total case rate (tcr) (safer than 6%), blended into one 0-100 breakdown against same-industry peers. A missing measure drops out and redistributes its weight rather than deflating the score. This is a per-dimension breakdown, distinct from the single letter grade above it (which weights TCR alone against the BLS industry benchmark).

D

44/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 5.9 per 100 workers

Safer than 6% of industry peers

DART rate
B 0 per 100 workers

Safer than 83% of industry peers

Fatalities
D 0

Safer than 50% of industry peers

Benchmarked live against every credibly-rated employer in the same NAICS industry code in the current OSHA extract (a segment must have at least 8 rated peers to benchmark). Not a legal or compliance determination; PlainSafetyScore's own weighting (TCR 40%, DART 35%, fatalities 25%).

TCR Δ

−17.7

2022→2024

Atara Biotherapeutics - ARC injury rate improved

Atara Biotherapeutics - ARC's TCR fell 17.7 from 17.7 in 2022 to 0.0 in 2024. Peak filing year was 2022 at 17.7 TCR. In 2024, DART was 0× this establishment's average TCR (severity share of cases).

2022=17.7 · 2023=0.0 · 2024=0.0

OSHA ITA Form 300A scorecard

Establishment book 325414 · Thousand Oaks, CA ABOVE-IND · SMALL

Grade D · TCR 5.9 · 179% of ind

  • DART 0.0 DART
  • RANK #26/29
  • PHOTO National Resilience
  • BOOK 3y book
  • INJ 1 inj
  • SIZE ~57 FTE

Nearest TCR peer: National Resilience (0.0 TCR gap)

Read with this employer → · Industry book → · California employers → · Look up another →

Atara Biotherapeutics - ARC in the TCR neighbourhood

Average Total Case Rate among this establishment and nearest same-industry peers

TCR

What this shows Atara Biotherapeutics - ARC averages 5.9 TCR (179% of the Gene therapy preparations manufacturing BLS benchmark).

Source U.S. Department of Labor, OSHA Injury Tracking Application (Form 300A) As of 2026-08-25

Atara Biotherapeutics - ARC TCR series: 2022=17.7 · 2023=0 · 2024=0 · BLS 3.3

Where Atara Biotherapeutics - ARC falls in its industry

234 Gene therapy preparations manu establishments

Safer than 6% of graded establishments in this industry, whose median TCR is 1.2.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #26 safest of 29 Gene therapy preparations manu employers in California.

Atara Biotherapeutics - ARC (57 employees, TCR 5.9) among 29 same-industry peers, split at the industry median of 198 employees and a TCR of 1.2 2×2 strategic matrix plotting 30 entities by Average employees (X) and Total Case Rate (Y), with a crosshair dividing the plot into four quadrants. Larger & higher-riskSmaller & higher-riskLarger & saferSmaller & safer than peers 05001,0001,5002,000 02468 Average employees Total Case Rate Atara Biotherapeutics - ARC
Atara Biotherapeutics - ARC (57 employees, TCR 5.9) among 29 same-industry peers, split at the industry median of 198 employees and a TCR of 1.2

Atara Biotherapeutics - ARC has fewer employees than the Gene therapy preparations manufacturing median and a higher injury rate than the industry's median TCR of 1.2. Workforce size and injury rate do not always move together within the same industry -- some of its smaller peers run higher rates than its larger ones, and vice versa.

Year-by-Year Safety Data

Year TCR DART Injuries Illnesses Fatalities
2024 0.0 0.0 0 0 0
2023 0.0 0.0 0 0 0
2022 17.7 11.8 1 2 0

OSHA ITA peer cross-reference

Establishment peer ledger

325414 · CA · Thousand Oaks

234 Gene therapy preparations manufacturing employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 143 employers in Thousand Oaks, CA · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel Establishment Metric
NAICS-TCR National Resilience 5.9 TCR
NAICS-TCR Newport Laboratories Production/Warehouse/QA 6.2 TCR
NAICS-TCR S San Francisco - Shaw California 6.2 TCR
NAICS-TCR Huvepharma Inc - LIN 800 6.3 TCR
STATE-SIZE Bowles Farming Company 57 FTE
STATE-SIZE Blanc Vineyards, LLC 57 FTE
STATE-SIZE MI RANCHITO FARMING INC 57 FTE
STATE-SIZE Farmland Management Services 57 FTE
CITY-NEAR Amgen Inc. (Thousand Oaks, CA) 5,792 FTE
CITY-NEAR Amgen USA (Sales - Flex workers) 2,803 FTE
CITY-NEAR California Department of Transportation Facility 472 2,621 FTE
CITY-NEAR Los Robles Hospital and Medical Center 1,651 FTE
NAT-TCR Connecticut Zoological Society 5.9 TCR
NAT-TCR Select Specialty Hospital - Boardman, Inc 5.9 TCR
NAT-TCR Powercon South 5.9 TCR
NAT-TCR Marion Il - 3219 5.9 TCR
NAT-SIZE Crossroads Mobile Maintenance 57 FTE
NAT-SIZE Main Plant 57 FTE
NAT-SIZE Western Specialty Contractors - Dallas 57 FTE
NAT-SIZE George A Kint Inc 57 FTE

Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →

Data Source: OSHA Injury Tracking Application (ITA), mandatory establishment-level injury/illness reports. Grades compare employer Total Case Rate (TCR) to BLS IIF industry benchmarks. Data covers years reported by this establishment: 2024, 2023, 2022. This is publicly available government data - not a legal determination of workplace conditions.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from official public datasets. See our methodology for details.